./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/egcd3-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/egcd3-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 1aca3c96522e618238f11f200c96e0ec490e756d4e04895bd2a51f9a4ff85af1 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 18:55:36,821 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:55:36,859 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:55:36,862 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:55:36,863 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:55:36,878 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:55:36,879 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:55:36,879 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:55:36,880 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:55:36,880 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:55:36,880 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:55:36,880 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:55:36,881 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:55:36,881 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:55:36,882 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:55:36,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:55:36,882 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:55:36,882 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:55:36,883 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:55:36,883 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:55:36,883 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:55:36,884 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:55:36,884 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:55:36,884 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:55:36,884 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:55:36,885 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:55:36,885 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:55:36,885 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:55:36,885 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:55:36,886 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:55:36,886 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:55:36,886 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:55:36,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:55:36,887 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:55:36,887 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:55:36,887 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:55:36,888 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:55:36,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:55:36,888 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:55:36,888 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:55:36,889 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:55:36,889 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:55:36,889 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1aca3c96522e618238f11f200c96e0ec490e756d4e04895bd2a51f9a4ff85af1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:55:37,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:55:37,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:55:37,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:55:37,134 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:55:37,134 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:55:37,135 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound5.c [2024-09-12 18:55:38,496 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:55:38,651 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:55:38,651 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound5.c [2024-09-12 18:55:38,661 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/7166270ac/856e14d2d1594833bab5d2e9f7366623/FLAG4e7ef8a32 [2024-09-12 18:55:38,673 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/7166270ac/856e14d2d1594833bab5d2e9f7366623 [2024-09-12 18:55:38,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:55:38,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:55:38,678 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:55:38,678 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:55:38,682 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:55:38,682 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:55:38" (1/1) ... [2024-09-12 18:55:38,684 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da8e0fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:55:38, skipping insertion in model container [2024-09-12 18:55:38,684 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:55:38" (1/1) ... [2024-09-12 18:55:38,699 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:55:38,819 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/egcd3-ll_valuebound5.c[490,503] [2024-09-12 18:55:38,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:55:38,853 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:55:38,863 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/egcd3-ll_valuebound5.c[490,503] [2024-09-12 18:55:38,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:55:38,891 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:55:38,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:55:38 WrapperNode [2024-09-12 18:55:38,892 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:55:38,892 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:55:38,893 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:55:38,893 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:55:38,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:55:38" (1/1) ... [2024-09-12 18:55:38,902 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:55:38" (1/1) ... [2024-09-12 18:55:38,907 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:55:38,907 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:55:38,908 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:55:38,908 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:55:38,909 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:55:38,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:55:38" (1/1) ... [2024-09-12 18:55:38,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:55:38" (1/1) ... [2024-09-12 18:55:38,917 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:55:38" (1/1) ... [2024-09-12 18:55:38,934 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 18:55:38,937 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:55:38" (1/1) ... [2024-09-12 18:55:38,937 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:55:38" (1/1) ... [2024-09-12 18:55:38,940 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:55:38" (1/1) ... [2024-09-12 18:55:38,942 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:55:38" (1/1) ... [2024-09-12 18:55:38,946 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:55:38" (1/1) ... [2024-09-12 18:55:38,947 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:55:38" (1/1) ... [2024-09-12 18:55:38,948 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:55:38,949 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:55:38,949 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:55:38,949 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:55:38,950 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:55:38" (1/1) ... [2024-09-12 18:55:38,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:55:38,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:38,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 18:55:38,997 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 18:55:39,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:55:39,033 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 18:55:39,034 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 18:55:39,034 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:55:39,034 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:55:39,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:55:39,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:55:39,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:55:39,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:55:39,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:55:39,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:55:39,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:55:39,086 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:55:39,087 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:55:39,645 INFO L? ?]: Removed 131 outVars from TransFormulas that were not future-live. [2024-09-12 18:55:39,645 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:55:39,675 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:55:39,677 INFO L318 CfgBuilder]: Removed 3 assume(true) statements. [2024-09-12 18:55:39,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:55:39 BoogieIcfgContainer [2024-09-12 18:55:39,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:55:39,679 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:55:39,679 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:55:39,683 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:55:39,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:55:38" (1/3) ... [2024-09-12 18:55:39,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8e0036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:55:39, skipping insertion in model container [2024-09-12 18:55:39,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:55:38" (2/3) ... [2024-09-12 18:55:39,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8e0036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:55:39, skipping insertion in model container [2024-09-12 18:55:39,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:55:39" (3/3) ... [2024-09-12 18:55:39,685 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd3-ll_valuebound5.c [2024-09-12 18:55:39,697 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:55:39,697 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 51 error locations. [2024-09-12 18:55:39,741 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:55:39,748 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;@b57ce12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:55:39,748 INFO L337 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-09-12 18:55:39,752 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 70 states have (on average 1.8857142857142857) internal successors, (132), 121 states have internal predecessors, (132), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 18:55:39,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 18:55:39,760 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:39,761 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:39,762 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:39,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:39,766 INFO L85 PathProgramCache]: Analyzing trace with hash 150372857, now seen corresponding path program 1 times [2024-09-12 18:55:39,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:39,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791206081] [2024-09-12 18:55:39,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:39,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:39,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:55:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:39,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:55:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:39,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:55:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:39,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:55:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:39,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:55:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:39,880 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:39,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:39,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791206081] [2024-09-12 18:55:39,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791206081] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:39,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:39,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:55:39,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479650507] [2024-09-12 18:55:39,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:39,886 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 18:55:39,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:39,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 18:55:39,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:55:39,903 INFO L87 Difference]: Start difference. First operand has 137 states, 70 states have (on average 1.8857142857142857) internal successors, (132), 121 states have internal predecessors, (132), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:55:39,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:39,940 INFO L93 Difference]: Finished difference Result 268 states and 310 transitions. [2024-09-12 18:55:39,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 18:55:39,942 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 29 [2024-09-12 18:55:39,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:39,948 INFO L225 Difference]: With dead ends: 268 [2024-09-12 18:55:39,948 INFO L226 Difference]: Without dead ends: 133 [2024-09-12 18:55:39,951 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:55:39,953 INFO L434 NwaCegarLoop]: 144 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, 144 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:39,954 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:55:39,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-09-12 18:55:39,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-09-12 18:55:39,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 68 states have (on average 1.7941176470588236) internal successors, (122), 119 states have internal predecessors, (122), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:55:39,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 142 transitions. [2024-09-12 18:55:39,987 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 142 transitions. Word has length 29 [2024-09-12 18:55:39,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:39,988 INFO L474 AbstractCegarLoop]: Abstraction has 133 states and 142 transitions. [2024-09-12 18:55:39,988 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:55:39,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:39,989 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 142 transitions. [2024-09-12 18:55:39,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-09-12 18:55:39,990 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:39,990 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:39,990 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:55:39,990 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:39,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:39,991 INFO L85 PathProgramCache]: Analyzing trace with hash -994139042, now seen corresponding path program 1 times [2024-09-12 18:55:39,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:39,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746552292] [2024-09-12 18:55:39,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:39,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:40,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:55:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:40,195 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:55:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:40,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:55:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:40,201 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:55:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:40,203 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:55:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:40,243 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:55:40,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:40,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746552292] [2024-09-12 18:55:40,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746552292] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:40,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:40,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:55:40,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312502195] [2024-09-12 18:55:40,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:40,245 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:55:40,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:40,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:55:40,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:55:40,251 INFO L87 Difference]: Start difference. First operand 133 states and 142 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:40,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:40,540 INFO L93 Difference]: Finished difference Result 229 states and 250 transitions. [2024-09-12 18:55:40,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:55:40,543 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 30 [2024-09-12 18:55:40,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:40,548 INFO L225 Difference]: With dead ends: 229 [2024-09-12 18:55:40,548 INFO L226 Difference]: Without dead ends: 194 [2024-09-12 18:55:40,548 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:55:40,549 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 209 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:40,550 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 354 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:55:40,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-09-12 18:55:40,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 135. [2024-09-12 18:55:40,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 70 states have (on average 1.7714285714285714) internal successors, (124), 121 states have internal predecessors, (124), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:55:40,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 144 transitions. [2024-09-12 18:55:40,575 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 144 transitions. Word has length 30 [2024-09-12 18:55:40,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:40,575 INFO L474 AbstractCegarLoop]: Abstraction has 135 states and 144 transitions. [2024-09-12 18:55:40,575 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:40,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:40,576 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 144 transitions. [2024-09-12 18:55:40,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-09-12 18:55:40,577 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:40,577 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:40,577 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:55:40,577 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:40,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:40,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1697009532, now seen corresponding path program 1 times [2024-09-12 18:55:40,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:40,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135078779] [2024-09-12 18:55:40,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:40,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:40,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1528640640] [2024-09-12 18:55:40,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:40,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:40,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:40,595 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:40,597 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 18:55:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:40,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:55:40,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:40,672 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:40,674 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:40,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:40,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135078779] [2024-09-12 18:55:40,675 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:40,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528640640] [2024-09-12 18:55:40,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528640640] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:40,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:40,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:55:40,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945765801] [2024-09-12 18:55:40,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:40,677 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:55:40,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:40,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:55:40,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:55:40,679 INFO L87 Difference]: Start difference. First operand 135 states and 144 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:40,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:40,885 INFO L93 Difference]: Finished difference Result 204 states and 223 transitions. [2024-09-12 18:55:40,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:55:40,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 33 [2024-09-12 18:55:40,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:40,888 INFO L225 Difference]: With dead ends: 204 [2024-09-12 18:55:40,888 INFO L226 Difference]: Without dead ends: 200 [2024-09-12 18:55:40,888 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:55:40,889 INFO L434 NwaCegarLoop]: 128 mSDtfsCounter, 59 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:40,889 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 234 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:55:40,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-09-12 18:55:40,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 174. [2024-09-12 18:55:40,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 105 states have (on average 1.7809523809523808) internal successors, (187), 156 states have internal predecessors, (187), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:55:40,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 215 transitions. [2024-09-12 18:55:40,910 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 215 transitions. Word has length 33 [2024-09-12 18:55:40,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:40,911 INFO L474 AbstractCegarLoop]: Abstraction has 174 states and 215 transitions. [2024-09-12 18:55:40,911 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:40,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:40,912 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 215 transitions. [2024-09-12 18:55:40,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-09-12 18:55:40,912 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:40,913 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:40,924 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 18:55:41,116 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:41,117 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:41,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:41,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1697009150, now seen corresponding path program 1 times [2024-09-12 18:55:41,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:41,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444924485] [2024-09-12 18:55:41,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:41,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:41,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [764865997] [2024-09-12 18:55:41,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:41,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:41,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:41,150 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:41,153 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 18:55:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:41,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:55:41,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:41,203 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:41,204 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:41,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:41,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444924485] [2024-09-12 18:55:41,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:41,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764865997] [2024-09-12 18:55:41,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764865997] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:41,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:41,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:55:41,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814905945] [2024-09-12 18:55:41,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:41,206 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:55:41,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:41,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:55:41,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:55:41,207 INFO L87 Difference]: Start difference. First operand 174 states and 215 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:41,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:41,414 INFO L93 Difference]: Finished difference Result 202 states and 219 transitions. [2024-09-12 18:55:41,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:55:41,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 33 [2024-09-12 18:55:41,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:41,420 INFO L225 Difference]: With dead ends: 202 [2024-09-12 18:55:41,420 INFO L226 Difference]: Without dead ends: 200 [2024-09-12 18:55:41,421 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:55:41,422 INFO L434 NwaCegarLoop]: 134 mSDtfsCounter, 59 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:41,422 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 252 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:55:41,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-09-12 18:55:41,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 174. [2024-09-12 18:55:41,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 105 states have (on average 1.7619047619047619) internal successors, (185), 156 states have internal predecessors, (185), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:55:41,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 213 transitions. [2024-09-12 18:55:41,439 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 213 transitions. Word has length 33 [2024-09-12 18:55:41,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:41,439 INFO L474 AbstractCegarLoop]: Abstraction has 174 states and 213 transitions. [2024-09-12 18:55:41,439 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:41,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:41,440 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 213 transitions. [2024-09-12 18:55:41,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 18:55:41,441 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:41,441 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:41,452 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 18:55:41,641 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:41,642 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:41,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:41,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1261407042, now seen corresponding path program 1 times [2024-09-12 18:55:41,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:41,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703039633] [2024-09-12 18:55:41,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:41,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:41,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:55:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:41,755 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:55:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:41,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:55:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:41,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:55:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:41,765 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:55:41,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:41,770 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:41,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:41,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703039633] [2024-09-12 18:55:41,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703039633] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:41,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:41,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:55:41,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874857910] [2024-09-12 18:55:41,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:41,774 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:55:41,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:41,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:55:41,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:55:41,775 INFO L87 Difference]: Start difference. First operand 174 states and 213 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:42,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:42,361 INFO L93 Difference]: Finished difference Result 197 states and 217 transitions. [2024-09-12 18:55:42,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:55:42,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 35 [2024-09-12 18:55:42,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:42,363 INFO L225 Difference]: With dead ends: 197 [2024-09-12 18:55:42,363 INFO L226 Difference]: Without dead ends: 196 [2024-09-12 18:55:42,363 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:55:42,363 INFO L434 NwaCegarLoop]: 129 mSDtfsCounter, 53 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:42,364 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 441 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:55:42,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-09-12 18:55:42,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 175. [2024-09-12 18:55:42,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 106 states have (on average 1.7547169811320755) internal successors, (186), 157 states have internal predecessors, (186), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:55:42,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 214 transitions. [2024-09-12 18:55:42,394 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 214 transitions. Word has length 35 [2024-09-12 18:55:42,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:42,395 INFO L474 AbstractCegarLoop]: Abstraction has 175 states and 214 transitions. [2024-09-12 18:55:42,395 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:42,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:42,396 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 214 transitions. [2024-09-12 18:55:42,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 18:55:42,397 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:42,397 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:42,398 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 18:55:42,398 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:42,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:42,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1261776448, now seen corresponding path program 1 times [2024-09-12 18:55:42,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:42,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423521950] [2024-09-12 18:55:42,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:42,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:42,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1031256065] [2024-09-12 18:55:42,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:42,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:42,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:42,422 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:42,431 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 18:55:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:42,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:55:42,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:42,551 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:42,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:42,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:42,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423521950] [2024-09-12 18:55:42,553 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:42,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031256065] [2024-09-12 18:55:42,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031256065] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:42,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:42,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:55:42,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213182357] [2024-09-12 18:55:42,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:42,554 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:55:42,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:42,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:55:42,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:55:42,555 INFO L87 Difference]: Start difference. First operand 175 states and 214 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:55:42,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:42,874 INFO L93 Difference]: Finished difference Result 194 states and 214 transitions. [2024-09-12 18:55:42,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:55:42,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2024-09-12 18:55:42,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:42,876 INFO L225 Difference]: With dead ends: 194 [2024-09-12 18:55:42,876 INFO L226 Difference]: Without dead ends: 193 [2024-09-12 18:55:42,876 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:55:42,877 INFO L434 NwaCegarLoop]: 103 mSDtfsCounter, 140 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:42,879 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 217 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:55:42,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-09-12 18:55:42,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 175. [2024-09-12 18:55:42,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 106 states have (on average 1.7452830188679245) internal successors, (185), 157 states have internal predecessors, (185), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:55:42,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 213 transitions. [2024-09-12 18:55:42,907 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 213 transitions. Word has length 35 [2024-09-12 18:55:42,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:42,908 INFO L474 AbstractCegarLoop]: Abstraction has 175 states and 213 transitions. [2024-09-12 18:55:42,908 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:55:42,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:42,908 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 213 transitions. [2024-09-12 18:55:42,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 18:55:42,910 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:42,910 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:42,928 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-12 18:55:43,111 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 18:55:43,112 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:43,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:43,112 INFO L85 PathProgramCache]: Analyzing trace with hash -448912472, now seen corresponding path program 1 times [2024-09-12 18:55:43,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:43,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922315642] [2024-09-12 18:55:43,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:43,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:43,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [390559174] [2024-09-12 18:55:43,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:43,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:43,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:43,135 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:43,136 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 18:55:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:43,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:55:43,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:43,209 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:43,209 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:43,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:43,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922315642] [2024-09-12 18:55:43,210 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:43,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390559174] [2024-09-12 18:55:43,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390559174] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:43,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:43,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:55:43,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848135823] [2024-09-12 18:55:43,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:43,211 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:55:43,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:43,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:55:43,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:55:43,211 INFO L87 Difference]: Start difference. First operand 175 states and 213 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:43,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:43,493 INFO L93 Difference]: Finished difference Result 195 states and 215 transitions. [2024-09-12 18:55:43,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:55:43,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 36 [2024-09-12 18:55:43,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:43,497 INFO L225 Difference]: With dead ends: 195 [2024-09-12 18:55:43,497 INFO L226 Difference]: Without dead ends: 194 [2024-09-12 18:55:43,497 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:55:43,497 INFO L434 NwaCegarLoop]: 123 mSDtfsCounter, 53 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:43,497 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 308 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:55:43,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-09-12 18:55:43,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 176. [2024-09-12 18:55:43,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 107 states have (on average 1.7383177570093458) internal successors, (186), 158 states have internal predecessors, (186), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:55:43,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 214 transitions. [2024-09-12 18:55:43,512 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 214 transitions. Word has length 36 [2024-09-12 18:55:43,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:43,513 INFO L474 AbstractCegarLoop]: Abstraction has 176 states and 214 transitions. [2024-09-12 18:55:43,513 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:43,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:43,513 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 214 transitions. [2024-09-12 18:55:43,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 18:55:43,515 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:43,517 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:43,531 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-12 18:55:43,717 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:43,718 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:43,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:43,719 INFO L85 PathProgramCache]: Analyzing trace with hash -460364130, now seen corresponding path program 1 times [2024-09-12 18:55:43,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:43,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403936635] [2024-09-12 18:55:43,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:43,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:43,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [617693335] [2024-09-12 18:55:43,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:43,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:43,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:43,731 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:43,737 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 18:55:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:43,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:55:43,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:43,803 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:43,803 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:43,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:43,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403936635] [2024-09-12 18:55:43,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:43,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617693335] [2024-09-12 18:55:43,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617693335] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:43,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:43,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:55:43,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519621360] [2024-09-12 18:55:43,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:43,804 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:55:43,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:43,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:55:43,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:55:43,805 INFO L87 Difference]: Start difference. First operand 176 states and 214 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:55:43,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:43,914 INFO L93 Difference]: Finished difference Result 195 states and 214 transitions. [2024-09-12 18:55:43,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:55:43,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2024-09-12 18:55:43,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:43,915 INFO L225 Difference]: With dead ends: 195 [2024-09-12 18:55:43,916 INFO L226 Difference]: Without dead ends: 194 [2024-09-12 18:55:43,916 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:55:43,916 INFO L434 NwaCegarLoop]: 103 mSDtfsCounter, 185 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:43,917 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 197 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:55:43,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-09-12 18:55:43,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 176. [2024-09-12 18:55:43,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 107 states have (on average 1.7289719626168225) internal successors, (185), 158 states have internal predecessors, (185), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:55:43,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 213 transitions. [2024-09-12 18:55:43,930 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 213 transitions. Word has length 36 [2024-09-12 18:55:43,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:43,930 INFO L474 AbstractCegarLoop]: Abstraction has 176 states and 213 transitions. [2024-09-12 18:55:43,930 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:55:43,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:43,931 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 213 transitions. [2024-09-12 18:55:43,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 18:55:43,931 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:43,931 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:43,943 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 18:55:44,132 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-09-12 18:55:44,133 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:44,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:44,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1031384576, now seen corresponding path program 1 times [2024-09-12 18:55:44,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:44,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285617302] [2024-09-12 18:55:44,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:44,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:44,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [941084304] [2024-09-12 18:55:44,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:44,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:44,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:44,147 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:44,153 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 18:55:44,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:44,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:55:44,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:44,196 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:44,197 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:44,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:44,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285617302] [2024-09-12 18:55:44,197 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:44,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941084304] [2024-09-12 18:55:44,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941084304] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:44,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:44,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:55:44,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251872460] [2024-09-12 18:55:44,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:44,198 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:55:44,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:44,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:55:44,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:55:44,199 INFO L87 Difference]: Start difference. First operand 176 states and 213 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:44,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:44,340 INFO L93 Difference]: Finished difference Result 290 states and 369 transitions. [2024-09-12 18:55:44,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:55:44,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 37 [2024-09-12 18:55:44,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:44,343 INFO L225 Difference]: With dead ends: 290 [2024-09-12 18:55:44,343 INFO L226 Difference]: Without dead ends: 284 [2024-09-12 18:55:44,343 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:55:44,343 INFO L434 NwaCegarLoop]: 119 mSDtfsCounter, 56 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:44,344 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 231 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:55:44,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-09-12 18:55:44,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 252. [2024-09-12 18:55:44,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 175 states have (on average 1.697142857142857) internal successors, (297), 226 states have internal predecessors, (297), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:55:44,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 341 transitions. [2024-09-12 18:55:44,363 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 341 transitions. Word has length 37 [2024-09-12 18:55:44,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:44,363 INFO L474 AbstractCegarLoop]: Abstraction has 252 states and 341 transitions. [2024-09-12 18:55:44,363 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:44,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:44,364 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 341 transitions. [2024-09-12 18:55:44,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 18:55:44,364 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:44,364 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:44,378 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 18:55:44,564 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:44,565 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:44,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:44,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1386386046, now seen corresponding path program 1 times [2024-09-12 18:55:44,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:44,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923266830] [2024-09-12 18:55:44,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:44,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:44,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:44,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1334434508] [2024-09-12 18:55:44,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:44,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:44,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:44,577 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:44,584 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 18:55:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:44,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:55:44,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:44,634 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:44,634 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:44,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:44,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923266830] [2024-09-12 18:55:44,634 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:44,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334434508] [2024-09-12 18:55:44,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334434508] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:44,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:44,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:55:44,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24506675] [2024-09-12 18:55:44,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:44,635 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:55:44,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:44,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:55:44,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:55:44,636 INFO L87 Difference]: Start difference. First operand 252 states and 341 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:45,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:45,114 INFO L93 Difference]: Finished difference Result 277 states and 345 transitions. [2024-09-12 18:55:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:55:45,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 37 [2024-09-12 18:55:45,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:45,117 INFO L225 Difference]: With dead ends: 277 [2024-09-12 18:55:45,117 INFO L226 Difference]: Without dead ends: 276 [2024-09-12 18:55:45,117 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:55:45,118 INFO L434 NwaCegarLoop]: 132 mSDtfsCounter, 57 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:45,118 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 343 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:55:45,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-09-12 18:55:45,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 252. [2024-09-12 18:55:45,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 175 states have (on average 1.6857142857142857) internal successors, (295), 226 states have internal predecessors, (295), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:55:45,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 339 transitions. [2024-09-12 18:55:45,161 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 339 transitions. Word has length 37 [2024-09-12 18:55:45,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:45,161 INFO L474 AbstractCegarLoop]: Abstraction has 252 states and 339 transitions. [2024-09-12 18:55:45,161 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:45,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:45,161 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 339 transitions. [2024-09-12 18:55:45,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 18:55:45,162 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:45,162 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:45,174 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 18:55:45,366 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:45,367 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:45,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:45,368 INFO L85 PathProgramCache]: Analyzing trace with hash -28294368, now seen corresponding path program 1 times [2024-09-12 18:55:45,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:45,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604222421] [2024-09-12 18:55:45,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:45,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:45,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [879799543] [2024-09-12 18:55:45,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:45,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:45,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:45,377 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:45,385 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 18:55:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:45,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:55:45,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:45,476 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:45,476 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:45,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:45,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604222421] [2024-09-12 18:55:45,477 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:45,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879799543] [2024-09-12 18:55:45,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879799543] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:45,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:45,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:55:45,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887425377] [2024-09-12 18:55:45,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:45,478 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:55:45,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:45,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:55:45,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:55:45,478 INFO L87 Difference]: Start difference. First operand 252 states and 339 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:45,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:45,821 INFO L93 Difference]: Finished difference Result 278 states and 344 transitions. [2024-09-12 18:55:45,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:55:45,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 38 [2024-09-12 18:55:45,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:45,825 INFO L225 Difference]: With dead ends: 278 [2024-09-12 18:55:45,825 INFO L226 Difference]: Without dead ends: 277 [2024-09-12 18:55:45,826 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:55:45,826 INFO L434 NwaCegarLoop]: 134 mSDtfsCounter, 100 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:45,827 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 261 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:55:45,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-09-12 18:55:45,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 252. [2024-09-12 18:55:45,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 175 states have (on average 1.6742857142857144) internal successors, (293), 226 states have internal predecessors, (293), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:55:45,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 337 transitions. [2024-09-12 18:55:45,851 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 337 transitions. Word has length 38 [2024-09-12 18:55:45,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:45,851 INFO L474 AbstractCegarLoop]: Abstraction has 252 states and 337 transitions. [2024-09-12 18:55:45,852 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:45,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:45,852 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 337 transitions. [2024-09-12 18:55:45,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 18:55:45,862 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:45,862 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:45,877 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 18:55:46,062 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:46,063 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:46,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:46,064 INFO L85 PathProgramCache]: Analyzing trace with hash 976873282, now seen corresponding path program 1 times [2024-09-12 18:55:46,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:46,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310913538] [2024-09-12 18:55:46,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:46,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:46,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:55:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:46,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:55:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:46,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:55:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:46,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:55:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:46,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:55:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:46,196 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:46,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:46,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310913538] [2024-09-12 18:55:46,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310913538] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:46,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:46,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:55:46,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227271381] [2024-09-12 18:55:46,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:46,197 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:55:46,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:46,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:55:46,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:55:46,197 INFO L87 Difference]: Start difference. First operand 252 states and 337 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:46,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:46,736 INFO L93 Difference]: Finished difference Result 281 states and 347 transitions. [2024-09-12 18:55:46,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:55:46,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 39 [2024-09-12 18:55:46,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:46,737 INFO L225 Difference]: With dead ends: 281 [2024-09-12 18:55:46,738 INFO L226 Difference]: Without dead ends: 280 [2024-09-12 18:55:46,738 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:55:46,738 INFO L434 NwaCegarLoop]: 133 mSDtfsCounter, 55 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:46,738 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 465 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:55:46,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-09-12 18:55:46,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 257. [2024-09-12 18:55:46,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 180 states have (on average 1.6666666666666667) internal successors, (300), 231 states have internal predecessors, (300), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:55:46,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 344 transitions. [2024-09-12 18:55:46,760 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 344 transitions. Word has length 39 [2024-09-12 18:55:46,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:46,760 INFO L474 AbstractCegarLoop]: Abstraction has 257 states and 344 transitions. [2024-09-12 18:55:46,760 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:46,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:46,761 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 344 transitions. [2024-09-12 18:55:46,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 18:55:46,761 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:46,761 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:46,761 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-09-12 18:55:46,761 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:46,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:46,762 INFO L85 PathProgramCache]: Analyzing trace with hash 218300844, now seen corresponding path program 1 times [2024-09-12 18:55:46,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:46,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438591703] [2024-09-12 18:55:46,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:46,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:46,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1550354041] [2024-09-12 18:55:46,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:46,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:46,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:46,771 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:46,772 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 18:55:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:46,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:55:46,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:46,841 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:46,841 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:46,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:46,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438591703] [2024-09-12 18:55:46,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:46,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550354041] [2024-09-12 18:55:46,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550354041] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:46,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:46,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:55:46,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536507934] [2024-09-12 18:55:46,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:46,843 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:55:46,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:46,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:55:46,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:55:46,843 INFO L87 Difference]: Start difference. First operand 257 states and 344 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:47,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:47,175 INFO L93 Difference]: Finished difference Result 298 states and 355 transitions. [2024-09-12 18:55:47,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:55:47,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 40 [2024-09-12 18:55:47,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:47,177 INFO L225 Difference]: With dead ends: 298 [2024-09-12 18:55:47,178 INFO L226 Difference]: Without dead ends: 297 [2024-09-12 18:55:47,178 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:55:47,178 INFO L434 NwaCegarLoop]: 119 mSDtfsCounter, 108 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:47,179 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 465 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:55:47,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-09-12 18:55:47,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 259. [2024-09-12 18:55:47,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 182 states have (on average 1.6593406593406594) internal successors, (302), 233 states have internal predecessors, (302), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:55:47,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 346 transitions. [2024-09-12 18:55:47,201 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 346 transitions. Word has length 40 [2024-09-12 18:55:47,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:47,201 INFO L474 AbstractCegarLoop]: Abstraction has 259 states and 346 transitions. [2024-09-12 18:55:47,202 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:47,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:47,202 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 346 transitions. [2024-09-12 18:55:47,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 18:55:47,202 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:47,203 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:47,214 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 18:55:47,403 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 18:55:47,403 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:47,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:47,404 INFO L85 PathProgramCache]: Analyzing trace with hash 145118284, now seen corresponding path program 1 times [2024-09-12 18:55:47,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:47,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779042143] [2024-09-12 18:55:47,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:47,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:47,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [329145052] [2024-09-12 18:55:47,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:47,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:47,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:47,412 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:47,413 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 18:55:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:47,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:55:47,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:47,502 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:47,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:47,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:47,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779042143] [2024-09-12 18:55:47,503 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:47,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329145052] [2024-09-12 18:55:47,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329145052] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:47,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:47,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:55:47,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809443486] [2024-09-12 18:55:47,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:47,504 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:55:47,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:47,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:55:47,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:55:47,504 INFO L87 Difference]: Start difference. First operand 259 states and 346 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:47,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:47,823 INFO L93 Difference]: Finished difference Result 283 states and 351 transitions. [2024-09-12 18:55:47,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:55:47,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 42 [2024-09-12 18:55:47,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:47,825 INFO L225 Difference]: With dead ends: 283 [2024-09-12 18:55:47,825 INFO L226 Difference]: Without dead ends: 281 [2024-09-12 18:55:47,825 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 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 18:55:47,826 INFO L434 NwaCegarLoop]: 124 mSDtfsCounter, 46 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:47,826 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 457 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:55:47,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-09-12 18:55:47,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 263. [2024-09-12 18:55:47,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 185 states have (on average 1.6486486486486487) internal successors, (305), 236 states have internal predecessors, (305), 23 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:55:47,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 349 transitions. [2024-09-12 18:55:47,851 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 349 transitions. Word has length 42 [2024-09-12 18:55:47,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:47,851 INFO L474 AbstractCegarLoop]: Abstraction has 263 states and 349 transitions. [2024-09-12 18:55:47,851 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:47,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:47,851 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 349 transitions. [2024-09-12 18:55:47,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 18:55:47,852 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:47,852 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:47,863 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 18:55:48,055 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 18:55:48,056 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:48,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:48,056 INFO L85 PathProgramCache]: Analyzing trace with hash 820015268, now seen corresponding path program 1 times [2024-09-12 18:55:48,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:48,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086761393] [2024-09-12 18:55:48,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:48,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:48,130 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:55:48,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:48,132 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:55:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:48,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:55:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:48,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:55:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:48,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:55:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:48,151 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:55:48,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:48,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086761393] [2024-09-12 18:55:48,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086761393] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:48,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870900332] [2024-09-12 18:55:48,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:48,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:48,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:48,153 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 18:55:48,158 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 18:55:48,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:48,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:55:48,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:48,210 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:55:48,210 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:48,268 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:55:48,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870900332] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:55:48,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:55:48,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 9 [2024-09-12 18:55:48,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001915807] [2024-09-12 18:55:48,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:48,269 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:55:48,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:48,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:55:48,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:55:48,269 INFO L87 Difference]: Start difference. First operand 263 states and 349 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:55:48,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:48,901 INFO L93 Difference]: Finished difference Result 574 states and 717 transitions. [2024-09-12 18:55:48,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:55:48,901 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2024-09-12 18:55:48,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:48,903 INFO L225 Difference]: With dead ends: 574 [2024-09-12 18:55:48,904 INFO L226 Difference]: Without dead ends: 539 [2024-09-12 18:55:48,904 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 91 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:55:48,904 INFO L434 NwaCegarLoop]: 130 mSDtfsCounter, 481 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:48,905 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 743 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:55:48,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-09-12 18:55:48,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 355. [2024-09-12 18:55:48,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 269 states have (on average 1.6988847583643123) internal successors, (457), 320 states have internal predecessors, (457), 31 states have call successors, (31), 5 states have call predecessors, (31), 4 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:55:48,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 517 transitions. [2024-09-12 18:55:48,950 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 517 transitions. Word has length 43 [2024-09-12 18:55:48,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:48,950 INFO L474 AbstractCegarLoop]: Abstraction has 355 states and 517 transitions. [2024-09-12 18:55:48,950 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:55:48,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:48,951 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 517 transitions. [2024-09-12 18:55:48,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 18:55:48,951 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:48,951 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:48,963 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 18:55:49,152 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 18:55:49,152 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:49,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:49,153 INFO L85 PathProgramCache]: Analyzing trace with hash -222864919, now seen corresponding path program 1 times [2024-09-12 18:55:49,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:49,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868645695] [2024-09-12 18:55:49,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:49,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:49,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [911555552] [2024-09-12 18:55:49,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:49,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:49,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:49,165 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 18:55:49,166 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 18:55:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:49,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:55:49,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:49,276 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:49,277 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:49,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:49,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868645695] [2024-09-12 18:55:49,277 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:49,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911555552] [2024-09-12 18:55:49,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911555552] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:49,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:49,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:55:49,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653559669] [2024-09-12 18:55:49,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:49,278 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:55:49,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:49,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:55:49,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:55:49,279 INFO L87 Difference]: Start difference. First operand 355 states and 517 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:55:49,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:49,569 INFO L93 Difference]: Finished difference Result 373 states and 519 transitions. [2024-09-12 18:55:49,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:55:49,569 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, (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 46 [2024-09-12 18:55:49,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:49,572 INFO L225 Difference]: With dead ends: 373 [2024-09-12 18:55:49,572 INFO L226 Difference]: Without dead ends: 372 [2024-09-12 18:55:49,572 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:55:49,573 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 191 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:49,573 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 191 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:55:49,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-09-12 18:55:49,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 355. [2024-09-12 18:55:49,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 269 states have (on average 1.691449814126394) internal successors, (455), 320 states have internal predecessors, (455), 31 states have call successors, (31), 5 states have call predecessors, (31), 4 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:55:49,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 515 transitions. [2024-09-12 18:55:49,627 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 515 transitions. Word has length 46 [2024-09-12 18:55:49,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:49,627 INFO L474 AbstractCegarLoop]: Abstraction has 355 states and 515 transitions. [2024-09-12 18:55:49,627 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:55:49,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:49,628 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 515 transitions. [2024-09-12 18:55:49,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 18:55:49,628 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:49,628 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:49,641 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 18:55:49,832 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 18:55:49,832 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:49,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:49,833 INFO L85 PathProgramCache]: Analyzing trace with hash -700394504, now seen corresponding path program 1 times [2024-09-12 18:55:49,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:49,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558022544] [2024-09-12 18:55:49,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:49,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:49,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:49,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [612042243] [2024-09-12 18:55:49,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:49,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:49,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:49,848 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 18:55:49,849 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 18:55:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:49,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:55:49,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:50,009 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:55:50,010 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:50,174 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:55:50,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:50,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558022544] [2024-09-12 18:55:50,174 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:50,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612042243] [2024-09-12 18:55:50,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612042243] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:55:50,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:55:50,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2024-09-12 18:55:50,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729088470] [2024-09-12 18:55:50,175 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:50,175 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:55:50,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:50,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:55:50,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:55:50,176 INFO L87 Difference]: Start difference. First operand 355 states and 515 transitions. Second operand has 12 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:55:51,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:51,383 INFO L93 Difference]: Finished difference Result 674 states and 968 transitions. [2024-09-12 18:55:51,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:55:51,383 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 46 [2024-09-12 18:55:51,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:51,386 INFO L225 Difference]: With dead ends: 674 [2024-09-12 18:55:51,386 INFO L226 Difference]: Without dead ends: 671 [2024-09-12 18:55:51,386 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:55:51,387 INFO L434 NwaCegarLoop]: 182 mSDtfsCounter, 736 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:51,387 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [737 Valid, 715 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:55:51,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2024-09-12 18:55:51,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 398. [2024-09-12 18:55:51,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 310 states have (on average 1.667741935483871) internal successors, (517), 361 states have internal predecessors, (517), 33 states have call successors, (33), 5 states have call predecessors, (33), 4 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:55:51,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 581 transitions. [2024-09-12 18:55:51,456 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 581 transitions. Word has length 46 [2024-09-12 18:55:51,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:51,456 INFO L474 AbstractCegarLoop]: Abstraction has 398 states and 581 transitions. [2024-09-12 18:55:51,456 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:55:51,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:51,457 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 581 transitions. [2024-09-12 18:55:51,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 18:55:51,457 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:51,457 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:51,469 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 18:55:51,658 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 18:55:51,658 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:51,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:51,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1681122210, now seen corresponding path program 1 times [2024-09-12 18:55:51,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:51,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253335607] [2024-09-12 18:55:51,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:51,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:51,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1282886789] [2024-09-12 18:55:51,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:51,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:51,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:51,671 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 18:55:51,673 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 18:55:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:51,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:55:51,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:51,748 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:51,749 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:51,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:51,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253335607] [2024-09-12 18:55:51,749 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:51,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282886789] [2024-09-12 18:55:51,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282886789] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:51,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:51,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:55:51,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643118830] [2024-09-12 18:55:51,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:51,750 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:55:51,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:51,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:55:51,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:55:51,750 INFO L87 Difference]: Start difference. First operand 398 states and 581 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:55:51,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:51,921 INFO L93 Difference]: Finished difference Result 416 states and 583 transitions. [2024-09-12 18:55:51,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:55:51,922 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, (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 18:55:51,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:51,923 INFO L225 Difference]: With dead ends: 416 [2024-09-12 18:55:51,923 INFO L226 Difference]: Without dead ends: 415 [2024-09-12 18:55:51,924 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:55:51,924 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 143 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:51,924 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 212 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:55:51,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-09-12 18:55:52,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 398. [2024-09-12 18:55:52,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 310 states have (on average 1.6612903225806452) internal successors, (515), 361 states have internal predecessors, (515), 33 states have call successors, (33), 5 states have call predecessors, (33), 4 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:55:52,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 579 transitions. [2024-09-12 18:55:52,025 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 579 transitions. Word has length 47 [2024-09-12 18:55:52,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:52,025 INFO L474 AbstractCegarLoop]: Abstraction has 398 states and 579 transitions. [2024-09-12 18:55:52,026 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:55:52,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:52,026 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 579 transitions. [2024-09-12 18:55:52,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 18:55:52,026 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:52,026 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:52,038 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 18:55:52,227 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 18:55:52,227 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:52,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:52,228 INFO L85 PathProgramCache]: Analyzing trace with hash -237393054, now seen corresponding path program 1 times [2024-09-12 18:55:52,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:52,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747419068] [2024-09-12 18:55:52,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:52,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:52,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [713889968] [2024-09-12 18:55:52,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:52,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:52,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:52,240 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 18:55:52,241 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 18:55:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:52,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:55:52,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:52,374 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:55:52,374 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:53,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:53,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747419068] [2024-09-12 18:55:53,167 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:53,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713889968] [2024-09-12 18:55:53,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713889968] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:53,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:55:53,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:55:53,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553067997] [2024-09-12 18:55:53,168 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:53,168 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:55:53,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:53,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:55:53,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:55:53,169 INFO L87 Difference]: Start difference. First operand 398 states and 579 transitions. Second operand has 8 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 18:55:53,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:53,489 INFO L93 Difference]: Finished difference Result 641 states and 931 transitions. [2024-09-12 18:55:53,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:55:53,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 47 [2024-09-12 18:55:53,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:53,492 INFO L225 Difference]: With dead ends: 641 [2024-09-12 18:55:53,492 INFO L226 Difference]: Without dead ends: 639 [2024-09-12 18:55:53,493 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:55:53,493 INFO L434 NwaCegarLoop]: 96 mSDtfsCounter, 399 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:53,493 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 467 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:55:53,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-09-12 18:55:53,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 563. [2024-09-12 18:55:53,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 457 states have (on average 1.7045951859956237) internal successors, (779), 508 states have internal predecessors, (779), 51 states have call successors, (51), 5 states have call predecessors, (51), 4 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-09-12 18:55:53,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 879 transitions. [2024-09-12 18:55:53,613 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 879 transitions. Word has length 47 [2024-09-12 18:55:53,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:53,613 INFO L474 AbstractCegarLoop]: Abstraction has 563 states and 879 transitions. [2024-09-12 18:55:53,613 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 18:55:53,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:53,614 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 879 transitions. [2024-09-12 18:55:53,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 18:55:53,614 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:53,614 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:53,632 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-12 18:55:53,819 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:53,820 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:53,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:53,820 INFO L85 PathProgramCache]: Analyzing trace with hash 575181067, now seen corresponding path program 1 times [2024-09-12 18:55:53,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:53,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766141584] [2024-09-12 18:55:53,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:53,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:53,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1222185756] [2024-09-12 18:55:53,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:53,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:53,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:53,829 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 18:55:53,837 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 18:55:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:53,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:55:53,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:53,906 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:53,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:53,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:53,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766141584] [2024-09-12 18:55:53,906 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:53,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222185756] [2024-09-12 18:55:53,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222185756] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:53,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:53,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:55:53,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504076022] [2024-09-12 18:55:53,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:53,907 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:55:53,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:53,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:55:53,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:55:53,908 INFO L87 Difference]: Start difference. First operand 563 states and 879 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:55:54,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:54,552 INFO L93 Difference]: Finished difference Result 591 states and 891 transitions. [2024-09-12 18:55:54,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:55:54,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 48 [2024-09-12 18:55:54,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:54,559 INFO L225 Difference]: With dead ends: 591 [2024-09-12 18:55:54,559 INFO L226 Difference]: Without dead ends: 590 [2024-09-12 18:55:54,560 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:55:54,560 INFO L434 NwaCegarLoop]: 138 mSDtfsCounter, 57 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:54,561 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 322 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:55:54,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-09-12 18:55:54,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 563. [2024-09-12 18:55:54,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 457 states have (on average 1.700218818380744) internal successors, (777), 508 states have internal predecessors, (777), 51 states have call successors, (51), 5 states have call predecessors, (51), 4 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-09-12 18:55:54,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 877 transitions. [2024-09-12 18:55:54,671 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 877 transitions. Word has length 48 [2024-09-12 18:55:54,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:54,672 INFO L474 AbstractCegarLoop]: Abstraction has 563 states and 877 transitions. [2024-09-12 18:55:54,672 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:55:54,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:54,673 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 877 transitions. [2024-09-12 18:55:54,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 18:55:54,674 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:54,674 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:54,688 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 18:55:54,874 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:54,875 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:54,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:54,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1231119416, now seen corresponding path program 1 times [2024-09-12 18:55:54,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:54,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358919954] [2024-09-12 18:55:54,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:54,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:54,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:55:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:54,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:55:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:54,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:55:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:54,955 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:55:54,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:54,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:55:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:54,958 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:54,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:54,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358919954] [2024-09-12 18:55:54,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358919954] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:54,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280589402] [2024-09-12 18:55:54,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:54,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:54,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:54,960 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 18:55:54,962 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 18:55:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:54,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:55:54,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:55,025 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:55,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:55,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280589402] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:55,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:55:55,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-09-12 18:55:55,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317311594] [2024-09-12 18:55:55,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:55,026 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:55:55,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:55,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:55:55,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:55:55,027 INFO L87 Difference]: Start difference. First operand 563 states and 877 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:55,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:55,457 INFO L93 Difference]: Finished difference Result 768 states and 1111 transitions. [2024-09-12 18:55:55,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:55:55,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 48 [2024-09-12 18:55:55,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:55,461 INFO L225 Difference]: With dead ends: 768 [2024-09-12 18:55:55,461 INFO L226 Difference]: Without dead ends: 482 [2024-09-12 18:55:55,464 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:55:55,465 INFO L434 NwaCegarLoop]: 177 mSDtfsCounter, 159 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:55,465 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 572 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:55:55,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-09-12 18:55:55,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 357. [2024-09-12 18:55:55,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 271 states have (on average 1.6494464944649447) internal successors, (447), 320 states have internal predecessors, (447), 33 states have call successors, (33), 5 states have call predecessors, (33), 4 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:55:55,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 511 transitions. [2024-09-12 18:55:55,581 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 511 transitions. Word has length 48 [2024-09-12 18:55:55,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:55,581 INFO L474 AbstractCegarLoop]: Abstraction has 357 states and 511 transitions. [2024-09-12 18:55:55,581 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:55,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:55,584 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 511 transitions. [2024-09-12 18:55:55,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 18:55:55,585 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:55,586 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:55,605 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-09-12 18:55:55,786 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:55,787 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:55,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:55,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1230750010, now seen corresponding path program 1 times [2024-09-12 18:55:55,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:55,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086051023] [2024-09-12 18:55:55,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:55,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:55,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:55,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1230917151] [2024-09-12 18:55:55,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:55,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:55,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:55,799 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 18:55:55,801 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 18:55:55,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:55,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:55:55,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:55,964 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:55:55,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:56,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:56,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086051023] [2024-09-12 18:55:56,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:56,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230917151] [2024-09-12 18:55:56,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230917151] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:56,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:55:56,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:55:56,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766494830] [2024-09-12 18:55:56,135 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:56,135 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:55:56,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:56,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:55:56,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:55:56,136 INFO L87 Difference]: Start difference. First operand 357 states and 511 transitions. Second operand has 10 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:55:56,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:56,845 INFO L93 Difference]: Finished difference Result 474 states and 658 transitions. [2024-09-12 18:55:56,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:55:56,847 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 48 [2024-09-12 18:55:56,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:56,849 INFO L225 Difference]: With dead ends: 474 [2024-09-12 18:55:56,849 INFO L226 Difference]: Without dead ends: 473 [2024-09-12 18:55:56,850 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:55:56,850 INFO L434 NwaCegarLoop]: 105 mSDtfsCounter, 413 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:56,851 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 628 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:55:56,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-09-12 18:55:56,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 436. [2024-09-12 18:55:56,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 341 states have (on average 1.6656891495601174) internal successors, (568), 390 states have internal predecessors, (568), 42 states have call successors, (42), 5 states have call predecessors, (42), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-09-12 18:55:56,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 650 transitions. [2024-09-12 18:55:56,953 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 650 transitions. Word has length 48 [2024-09-12 18:55:56,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:56,953 INFO L474 AbstractCegarLoop]: Abstraction has 436 states and 650 transitions. [2024-09-12 18:55:56,953 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:55:56,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:56,953 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 650 transitions. [2024-09-12 18:55:56,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 18:55:56,954 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:56,954 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:56,969 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-09-12 18:55:57,158 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 18:55:57,159 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:57,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:57,159 INFO L85 PathProgramCache]: Analyzing trace with hash 650744004, now seen corresponding path program 1 times [2024-09-12 18:55:57,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:57,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212202347] [2024-09-12 18:55:57,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:57,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:57,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2072595151] [2024-09-12 18:55:57,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:57,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:57,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:57,173 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 18:55:57,175 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 18:55:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:57,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:55:57,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:57,304 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:57,304 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:57,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:57,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212202347] [2024-09-12 18:55:57,304 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:57,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072595151] [2024-09-12 18:55:57,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072595151] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:57,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:57,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:55:57,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661749585] [2024-09-12 18:55:57,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:57,305 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:55:57,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:57,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:55:57,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:55:57,306 INFO L87 Difference]: Start difference. First operand 436 states and 650 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:55:58,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:58,007 INFO L93 Difference]: Finished difference Result 465 states and 663 transitions. [2024-09-12 18:55:58,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:55:58,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 49 [2024-09-12 18:55:58,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:58,010 INFO L225 Difference]: With dead ends: 465 [2024-09-12 18:55:58,011 INFO L226 Difference]: Without dead ends: 464 [2024-09-12 18:55:58,011 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:55:58,011 INFO L434 NwaCegarLoop]: 138 mSDtfsCounter, 57 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:58,012 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 320 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:55:58,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-09-12 18:55:58,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 436. [2024-09-12 18:55:58,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 341 states have (on average 1.6598240469208212) internal successors, (566), 390 states have internal predecessors, (566), 42 states have call successors, (42), 5 states have call predecessors, (42), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-09-12 18:55:58,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 648 transitions. [2024-09-12 18:55:58,144 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 648 transitions. Word has length 49 [2024-09-12 18:55:58,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:58,145 INFO L474 AbstractCegarLoop]: Abstraction has 436 states and 648 transitions. [2024-09-12 18:55:58,145 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:55:58,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:58,145 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 648 transitions. [2024-09-12 18:55:58,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 18:55:58,145 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:58,145 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:58,157 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 18:55:58,349 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 18:55:58,350 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:58,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:58,350 INFO L85 PathProgramCache]: Analyzing trace with hash -501455260, now seen corresponding path program 1 times [2024-09-12 18:55:58,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:58,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276556576] [2024-09-12 18:55:58,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:58,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:58,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1297409637] [2024-09-12 18:55:58,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:58,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:58,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:58,363 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 18:55:58,367 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 18:55:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:58,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:55:58,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:58,548 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:55:58,548 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:59,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:59,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276556576] [2024-09-12 18:55:59,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:59,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297409637] [2024-09-12 18:55:59,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297409637] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:59,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:55:59,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:55:59,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13868265] [2024-09-12 18:55:59,462 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:59,462 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:55:59,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:59,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:55:59,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:55:59,462 INFO L87 Difference]: Start difference. First operand 436 states and 648 transitions. Second operand has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:56:00,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:00,121 INFO L93 Difference]: Finished difference Result 482 states and 653 transitions. [2024-09-12 18:56:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:56:00,122 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2024-09-12 18:56:00,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:00,124 INFO L225 Difference]: With dead ends: 482 [2024-09-12 18:56:00,124 INFO L226 Difference]: Without dead ends: 481 [2024-09-12 18:56:00,124 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:56:00,125 INFO L434 NwaCegarLoop]: 120 mSDtfsCounter, 393 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:00,125 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 650 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:56:00,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-09-12 18:56:00,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 436. [2024-09-12 18:56:00,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 341 states have (on average 1.651026392961877) internal successors, (563), 390 states have internal predecessors, (563), 42 states have call successors, (42), 5 states have call predecessors, (42), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-09-12 18:56:00,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 645 transitions. [2024-09-12 18:56:00,244 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 645 transitions. Word has length 49 [2024-09-12 18:56:00,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:00,245 INFO L474 AbstractCegarLoop]: Abstraction has 436 states and 645 transitions. [2024-09-12 18:56:00,245 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:56:00,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:00,245 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 645 transitions. [2024-09-12 18:56:00,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 18:56:00,246 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:00,246 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:00,258 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 18:56:00,446 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 18:56:00,446 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:00,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:00,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1634756220, now seen corresponding path program 1 times [2024-09-12 18:56:00,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:00,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296392372] [2024-09-12 18:56:00,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:00,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:00,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [490455781] [2024-09-12 18:56:00,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:00,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:00,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:00,456 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 18:56:00,459 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 18:56:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:00,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:56:00,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:00,670 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:56:00,670 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:01,206 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:56:01,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:01,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296392372] [2024-09-12 18:56:01,206 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:01,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490455781] [2024-09-12 18:56:01,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490455781] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:56:01,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:56:01,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-09-12 18:56:01,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705075907] [2024-09-12 18:56:01,207 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:01,207 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:56:01,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:01,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:56:01,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:56:01,208 INFO L87 Difference]: Start difference. First operand 436 states and 645 transitions. Second operand has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2024-09-12 18:56:04,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:04,657 INFO L93 Difference]: Finished difference Result 490 states and 659 transitions. [2024-09-12 18:56:04,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:56:04,657 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 50 [2024-09-12 18:56:04,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:04,659 INFO L225 Difference]: With dead ends: 490 [2024-09-12 18:56:04,659 INFO L226 Difference]: Without dead ends: 485 [2024-09-12 18:56:04,660 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:56:04,660 INFO L434 NwaCegarLoop]: 127 mSDtfsCounter, 379 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:04,661 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 672 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-09-12 18:56:04,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-09-12 18:56:04,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 357. [2024-09-12 18:56:04,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 271 states have (on average 1.6014760147601477) internal successors, (434), 320 states have internal predecessors, (434), 33 states have call successors, (33), 5 states have call predecessors, (33), 4 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:56:04,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 498 transitions. [2024-09-12 18:56:04,773 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 498 transitions. Word has length 50 [2024-09-12 18:56:04,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:04,773 INFO L474 AbstractCegarLoop]: Abstraction has 357 states and 498 transitions. [2024-09-12 18:56:04,773 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2024-09-12 18:56:04,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:04,774 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 498 transitions. [2024-09-12 18:56:04,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-09-12 18:56:04,774 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:04,774 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:04,786 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:04,974 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 18:56:04,975 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:04,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:04,975 INFO L85 PathProgramCache]: Analyzing trace with hash -862164634, now seen corresponding path program 1 times [2024-09-12 18:56:04,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:04,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127850655] [2024-09-12 18:56:04,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:04,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:04,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [589454784] [2024-09-12 18:56:04,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:04,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:04,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:04,983 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:04,984 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 18:56:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:05,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:56:05,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:05,209 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:56:05,209 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:10,312 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:56:10,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:10,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127850655] [2024-09-12 18:56:10,313 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:10,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589454784] [2024-09-12 18:56:10,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589454784] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:56:10,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:56:10,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-09-12 18:56:10,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478742856] [2024-09-12 18:56:10,313 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:10,314 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:56:10,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:10,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:56:10,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=120, Unknown=1, NotChecked=0, Total=156 [2024-09-12 18:56:10,315 INFO L87 Difference]: Start difference. First operand 357 states and 498 transitions. Second operand has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:56:11,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:11,809 INFO L93 Difference]: Finished difference Result 409 states and 514 transitions. [2024-09-12 18:56:11,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:56:11,810 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 51 [2024-09-12 18:56:11,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:11,812 INFO L225 Difference]: With dead ends: 409 [2024-09-12 18:56:11,812 INFO L226 Difference]: Without dead ends: 407 [2024-09-12 18:56:11,813 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=59, Invalid=180, Unknown=1, NotChecked=0, Total=240 [2024-09-12 18:56:11,815 INFO L434 NwaCegarLoop]: 142 mSDtfsCounter, 502 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:11,815 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 881 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-09-12 18:56:11,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-09-12 18:56:11,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 358. [2024-09-12 18:56:11,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 272 states have (on average 1.5845588235294117) internal successors, (431), 321 states have internal predecessors, (431), 33 states have call successors, (33), 5 states have call predecessors, (33), 4 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:56:11,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 495 transitions. [2024-09-12 18:56:11,915 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 495 transitions. Word has length 51 [2024-09-12 18:56:11,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:11,916 INFO L474 AbstractCegarLoop]: Abstraction has 358 states and 495 transitions. [2024-09-12 18:56:11,916 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:56:11,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:11,916 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 495 transitions. [2024-09-12 18:56:11,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 18:56:11,916 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:11,916 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:11,933 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-09-12 18:56:12,117 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 18:56:12,117 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:12,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:12,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1833363282, now seen corresponding path program 1 times [2024-09-12 18:56:12,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:12,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144468233] [2024-09-12 18:56:12,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:12,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:12,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1748053737] [2024-09-12 18:56:12,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:12,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:12,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:12,128 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:12,129 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-12 18:56:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:12,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:56:12,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:12,253 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:56:12,253 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:12,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:12,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144468233] [2024-09-12 18:56:12,254 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:12,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748053737] [2024-09-12 18:56:12,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748053737] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:12,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:12,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:56:12,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282531474] [2024-09-12 18:56:12,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:12,254 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:56:12,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:12,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:56:12,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:56:12,254 INFO L87 Difference]: Start difference. First operand 358 states and 495 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:56:12,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:12,778 INFO L93 Difference]: Finished difference Result 374 states and 500 transitions. [2024-09-12 18:56:12,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:56:12,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 53 [2024-09-12 18:56:12,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:12,780 INFO L225 Difference]: With dead ends: 374 [2024-09-12 18:56:12,780 INFO L226 Difference]: Without dead ends: 372 [2024-09-12 18:56:12,781 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 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 18:56:12,782 INFO L434 NwaCegarLoop]: 113 mSDtfsCounter, 32 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:12,782 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 391 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:56:12,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-09-12 18:56:12,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 362. [2024-09-12 18:56:12,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 275 states have (on average 1.5781818181818181) internal successors, (434), 324 states have internal predecessors, (434), 33 states have call successors, (33), 6 states have call predecessors, (33), 5 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:56:12,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 498 transitions. [2024-09-12 18:56:12,910 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 498 transitions. Word has length 53 [2024-09-12 18:56:12,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:12,911 INFO L474 AbstractCegarLoop]: Abstraction has 362 states and 498 transitions. [2024-09-12 18:56:12,911 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:56:12,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:12,911 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 498 transitions. [2024-09-12 18:56:12,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 18:56:12,912 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:12,912 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:12,928 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:13,112 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 18:56:13,113 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:13,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:13,113 INFO L85 PathProgramCache]: Analyzing trace with hash -330700910, now seen corresponding path program 1 times [2024-09-12 18:56:13,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:13,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314942242] [2024-09-12 18:56:13,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:13,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:13,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1130325204] [2024-09-12 18:56:13,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:13,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:13,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:13,123 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:13,124 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-12 18:56:13,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:13,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:56:13,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:13,275 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:56:13,275 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:13,397 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:56:13,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:13,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314942242] [2024-09-12 18:56:13,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:13,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130325204] [2024-09-12 18:56:13,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130325204] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:56:13,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:56:13,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2024-09-12 18:56:13,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411988754] [2024-09-12 18:56:13,397 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:13,397 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:56:13,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:13,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:56:13,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:56:13,398 INFO L87 Difference]: Start difference. First operand 362 states and 498 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:56:14,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:14,421 INFO L93 Difference]: Finished difference Result 409 states and 517 transitions. [2024-09-12 18:56:14,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:56:14,422 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 55 [2024-09-12 18:56:14,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:14,423 INFO L225 Difference]: With dead ends: 409 [2024-09-12 18:56:14,424 INFO L226 Difference]: Without dead ends: 407 [2024-09-12 18:56:14,424 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:56:14,424 INFO L434 NwaCegarLoop]: 129 mSDtfsCounter, 154 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:14,424 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 801 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:56:14,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-09-12 18:56:14,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 366. [2024-09-12 18:56:14,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 278 states have (on average 1.5719424460431655) internal successors, (437), 327 states have internal predecessors, (437), 33 states have call successors, (33), 7 states have call predecessors, (33), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:56:14,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 501 transitions. [2024-09-12 18:56:14,533 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 501 transitions. Word has length 55 [2024-09-12 18:56:14,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:14,533 INFO L474 AbstractCegarLoop]: Abstraction has 366 states and 501 transitions. [2024-09-12 18:56:14,534 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:56:14,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:14,534 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 501 transitions. [2024-09-12 18:56:14,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-12 18:56:14,534 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:14,534 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:14,546 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-09-12 18:56:14,735 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 18:56:14,735 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:14,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:14,736 INFO L85 PathProgramCache]: Analyzing trace with hash -215074698, now seen corresponding path program 1 times [2024-09-12 18:56:14,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:14,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597544018] [2024-09-12 18:56:14,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:14,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:14,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:14,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:14,954 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:14,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:56:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:14,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:56:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:14,971 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:56:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:14,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:56:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:14,984 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-12 18:56:14,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:14,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597544018] [2024-09-12 18:56:14,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597544018] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:14,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987841645] [2024-09-12 18:56:14,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:14,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:14,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:14,986 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:14,987 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-12 18:56:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:15,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:56:15,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:15,173 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:56:15,173 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:15,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987841645] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:15,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:15,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-09-12 18:56:15,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548616897] [2024-09-12 18:56:15,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:15,175 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:56:15,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:15,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:56:15,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:56:15,176 INFO L87 Difference]: Start difference. First operand 366 states and 501 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:56:15,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:15,760 INFO L93 Difference]: Finished difference Result 393 states and 505 transitions. [2024-09-12 18:56:15,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:56:15,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 57 [2024-09-12 18:56:15,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:15,762 INFO L225 Difference]: With dead ends: 393 [2024-09-12 18:56:15,762 INFO L226 Difference]: Without dead ends: 392 [2024-09-12 18:56:15,762 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:56:15,762 INFO L434 NwaCegarLoop]: 88 mSDtfsCounter, 261 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:15,762 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 297 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:56:15,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-09-12 18:56:15,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 366. [2024-09-12 18:56:15,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 278 states have (on average 1.5683453237410072) internal successors, (436), 327 states have internal predecessors, (436), 33 states have call successors, (33), 7 states have call predecessors, (33), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:56:15,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 500 transitions. [2024-09-12 18:56:15,864 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 500 transitions. Word has length 57 [2024-09-12 18:56:15,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:15,864 INFO L474 AbstractCegarLoop]: Abstraction has 366 states and 500 transitions. [2024-09-12 18:56:15,864 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:56:15,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:15,864 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 500 transitions. [2024-09-12 18:56:15,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-12 18:56:15,865 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:15,865 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:15,877 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:16,065 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 18:56:16,066 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:16,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:16,066 INFO L85 PathProgramCache]: Analyzing trace with hash 24165517, now seen corresponding path program 1 times [2024-09-12 18:56:16,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:16,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802933055] [2024-09-12 18:56:16,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:16,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:16,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [443818137] [2024-09-12 18:56:16,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:16,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:16,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:16,075 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:16,076 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-09-12 18:56:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:16,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:56:16,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:16,260 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:56:16,260 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:28,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:28,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802933055] [2024-09-12 18:56:28,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:28,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443818137] [2024-09-12 18:56:28,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443818137] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:28,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:28,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:56:28,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228152155] [2024-09-12 18:56:28,515 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:28,515 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:56:28,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:28,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:56:28,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=111, Unknown=3, NotChecked=0, Total=156 [2024-09-12 18:56:28,516 INFO L87 Difference]: Start difference. First operand 366 states and 500 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 18:56:28,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:28,918 INFO L93 Difference]: Finished difference Result 419 states and 522 transitions. [2024-09-12 18:56:28,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:56:28,919 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 57 [2024-09-12 18:56:28,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:28,920 INFO L225 Difference]: With dead ends: 419 [2024-09-12 18:56:28,921 INFO L226 Difference]: Without dead ends: 417 [2024-09-12 18:56:28,921 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=42, Invalid=111, Unknown=3, NotChecked=0, Total=156 [2024-09-12 18:56:28,921 INFO L434 NwaCegarLoop]: 140 mSDtfsCounter, 325 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:28,921 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 685 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:56:28,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-09-12 18:56:29,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 366. [2024-09-12 18:56:29,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 278 states have (on average 1.5539568345323742) internal successors, (432), 327 states have internal predecessors, (432), 33 states have call successors, (33), 7 states have call predecessors, (33), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:56:29,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 496 transitions. [2024-09-12 18:56:29,028 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 496 transitions. Word has length 57 [2024-09-12 18:56:29,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:29,028 INFO L474 AbstractCegarLoop]: Abstraction has 366 states and 496 transitions. [2024-09-12 18:56:29,028 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 18:56:29,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:29,029 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 496 transitions. [2024-09-12 18:56:29,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 18:56:29,029 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:29,029 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:29,041 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:29,233 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:29,234 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:29,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:29,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1922619074, now seen corresponding path program 1 times [2024-09-12 18:56:29,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:29,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954194338] [2024-09-12 18:56:29,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:29,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:29,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1505728923] [2024-09-12 18:56:29,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:29,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:29,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:29,247 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:29,248 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-09-12 18:56:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:29,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:56:29,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:29,388 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:56:29,388 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:29,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:29,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954194338] [2024-09-12 18:56:29,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:29,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505728923] [2024-09-12 18:56:29,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505728923] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:29,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:29,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:56:29,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383388922] [2024-09-12 18:56:29,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:29,389 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:56:29,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:29,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:56:29,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:56:29,389 INFO L87 Difference]: Start difference. First operand 366 states and 496 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:56:29,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:29,797 INFO L93 Difference]: Finished difference Result 393 states and 500 transitions. [2024-09-12 18:56:29,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:56:29,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2024-09-12 18:56:29,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:29,799 INFO L225 Difference]: With dead ends: 393 [2024-09-12 18:56:29,799 INFO L226 Difference]: Without dead ends: 392 [2024-09-12 18:56:29,799 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:56:29,800 INFO L434 NwaCegarLoop]: 90 mSDtfsCounter, 258 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:29,800 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 299 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:56:29,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-09-12 18:56:29,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 366. [2024-09-12 18:56:29,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 278 states have (on average 1.5503597122302157) internal successors, (431), 327 states have internal predecessors, (431), 33 states have call successors, (33), 7 states have call predecessors, (33), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:56:29,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 495 transitions. [2024-09-12 18:56:29,908 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 495 transitions. Word has length 58 [2024-09-12 18:56:29,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:29,908 INFO L474 AbstractCegarLoop]: Abstraction has 366 states and 495 transitions. [2024-09-12 18:56:29,908 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:56:29,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:29,909 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 495 transitions. [2024-09-12 18:56:29,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 18:56:29,909 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:29,909 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:29,921 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-09-12 18:56:30,113 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:30,114 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:30,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:30,114 INFO L85 PathProgramCache]: Analyzing trace with hash 749131130, now seen corresponding path program 1 times [2024-09-12 18:56:30,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:30,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523803374] [2024-09-12 18:56:30,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:30,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:30,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [927196859] [2024-09-12 18:56:30,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:30,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:30,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:30,122 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:30,123 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-09-12 18:56:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:30,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:56:30,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:30,295 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:56:30,295 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:41,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:41,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523803374] [2024-09-12 18:56:41,358 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:41,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927196859] [2024-09-12 18:56:41,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927196859] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:41,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:41,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:56:41,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986960878] [2024-09-12 18:56:41,358 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:41,359 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:56:41,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:41,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:56:41,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=111, Unknown=3, NotChecked=0, Total=156 [2024-09-12 18:56:41,360 INFO L87 Difference]: Start difference. First operand 366 states and 495 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 18:56:41,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:41,803 INFO L93 Difference]: Finished difference Result 419 states and 517 transitions. [2024-09-12 18:56:41,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:56:41,803 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 58 [2024-09-12 18:56:41,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:41,805 INFO L225 Difference]: With dead ends: 419 [2024-09-12 18:56:41,805 INFO L226 Difference]: Without dead ends: 417 [2024-09-12 18:56:41,805 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=53, Invalid=126, Unknown=3, NotChecked=0, Total=182 [2024-09-12 18:56:41,806 INFO L434 NwaCegarLoop]: 90 mSDtfsCounter, 249 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:41,806 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 522 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:56:41,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-09-12 18:56:41,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 366. [2024-09-12 18:56:41,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 278 states have (on average 1.5359712230215827) internal successors, (427), 327 states have internal predecessors, (427), 33 states have call successors, (33), 7 states have call predecessors, (33), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:56:41,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 491 transitions. [2024-09-12 18:56:41,910 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 491 transitions. Word has length 58 [2024-09-12 18:56:41,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:41,910 INFO L474 AbstractCegarLoop]: Abstraction has 366 states and 491 transitions. [2024-09-12 18:56:41,910 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 18:56:41,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:41,910 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 491 transitions. [2024-09-12 18:56:41,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 18:56:41,911 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:41,911 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:41,923 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:42,114 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:42,115 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:42,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:42,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1748228655, now seen corresponding path program 1 times [2024-09-12 18:56:42,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:42,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912489996] [2024-09-12 18:56:42,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:42,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:42,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:42,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [838315526] [2024-09-12 18:56:42,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:42,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:42,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:42,124 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:42,124 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-09-12 18:56:42,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:42,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:56:42,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:42,415 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:56:42,415 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:46,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:46,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912489996] [2024-09-12 18:56:46,722 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:46,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838315526] [2024-09-12 18:56:46,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838315526] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:46,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:46,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:56:46,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963269494] [2024-09-12 18:56:46,723 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:46,723 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:56:46,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:46,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:56:46,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=342, Unknown=1, NotChecked=0, Total=420 [2024-09-12 18:56:46,727 INFO L87 Difference]: Start difference. First operand 366 states and 491 transitions. Second operand has 13 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 18:56:47,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:47,806 INFO L93 Difference]: Finished difference Result 494 states and 636 transitions. [2024-09-12 18:56:47,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:56:47,806 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 59 [2024-09-12 18:56:47,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:47,808 INFO L225 Difference]: With dead ends: 494 [2024-09-12 18:56:47,808 INFO L226 Difference]: Without dead ends: 493 [2024-09-12 18:56:47,808 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=145, Invalid=610, Unknown=1, NotChecked=0, Total=756 [2024-09-12 18:56:47,809 INFO L434 NwaCegarLoop]: 88 mSDtfsCounter, 572 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:47,809 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 588 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:56:47,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-09-12 18:56:47,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 379. [2024-09-12 18:56:47,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 290 states have (on average 1.513793103448276) internal successors, (439), 339 states have internal predecessors, (439), 34 states have call successors, (34), 7 states have call predecessors, (34), 6 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-09-12 18:56:47,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 505 transitions. [2024-09-12 18:56:47,932 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 505 transitions. Word has length 59 [2024-09-12 18:56:47,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:47,932 INFO L474 AbstractCegarLoop]: Abstraction has 379 states and 505 transitions. [2024-09-12 18:56:47,932 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 18:56:47,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:47,932 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 505 transitions. [2024-09-12 18:56:47,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-09-12 18:56:47,933 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:47,933 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:47,950 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:48,133 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-09-12 18:56:48,133 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:48,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:48,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1639486436, now seen corresponding path program 1 times [2024-09-12 18:56:48,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:48,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753957211] [2024-09-12 18:56:48,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:48,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:48,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1384594656] [2024-09-12 18:56:48,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:48,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:48,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:48,143 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:48,144 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-09-12 18:56:48,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:48,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:56:48,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:48,425 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:56:48,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:49,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:49,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753957211] [2024-09-12 18:56:49,817 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:49,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384594656] [2024-09-12 18:56:49,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384594656] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:49,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:49,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:56:49,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378823394] [2024-09-12 18:56:49,818 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:49,818 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:56:49,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:49,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:56:49,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:56:49,819 INFO L87 Difference]: Start difference. First operand 379 states and 505 transitions. Second operand has 13 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 18:56:50,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:50,808 INFO L93 Difference]: Finished difference Result 494 states and 635 transitions. [2024-09-12 18:56:50,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:56:50,809 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 60 [2024-09-12 18:56:50,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:50,810 INFO L225 Difference]: With dead ends: 494 [2024-09-12 18:56:50,810 INFO L226 Difference]: Without dead ends: 493 [2024-09-12 18:56:50,811 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=145, Invalid=611, Unknown=0, NotChecked=0, Total=756 [2024-09-12 18:56:50,811 INFO L434 NwaCegarLoop]: 88 mSDtfsCounter, 613 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:50,811 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 519 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:56:50,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-09-12 18:56:50,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 368. [2024-09-12 18:56:50,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 280 states have (on average 1.5321428571428573) internal successors, (429), 329 states have internal predecessors, (429), 33 states have call successors, (33), 7 states have call predecessors, (33), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:56:50,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 493 transitions. [2024-09-12 18:56:50,919 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 493 transitions. Word has length 60 [2024-09-12 18:56:50,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:50,919 INFO L474 AbstractCegarLoop]: Abstraction has 368 states and 493 transitions. [2024-09-12 18:56:50,919 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 18:56:50,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:50,920 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 493 transitions. [2024-09-12 18:56:50,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-09-12 18:56:50,920 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:50,920 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:50,932 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:51,124 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-12 18:56:51,125 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:51,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:51,125 INFO L85 PathProgramCache]: Analyzing trace with hash 962205802, now seen corresponding path program 1 times [2024-09-12 18:56:51,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:51,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726306671] [2024-09-12 18:56:51,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:51,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:51,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1568891881] [2024-09-12 18:56:51,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:51,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:51,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:51,134 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:51,138 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-09-12 18:56:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:51,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:56:51,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:51,230 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:56:51,231 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:51,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:51,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726306671] [2024-09-12 18:56:51,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:51,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568891881] [2024-09-12 18:56:51,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568891881] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:51,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:51,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:56:51,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97944963] [2024-09-12 18:56:51,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:51,233 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:56:51,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:51,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:56:51,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:56:51,234 INFO L87 Difference]: Start difference. First operand 368 states and 493 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:56:51,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:51,523 INFO L93 Difference]: Finished difference Result 398 states and 510 transitions. [2024-09-12 18:56:51,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:56:51,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2024-09-12 18:56:51,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:51,525 INFO L225 Difference]: With dead ends: 398 [2024-09-12 18:56:51,525 INFO L226 Difference]: Without dead ends: 396 [2024-09-12 18:56:51,525 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 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 18:56:51,525 INFO L434 NwaCegarLoop]: 124 mSDtfsCounter, 34 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:51,526 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 461 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:56:51,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-09-12 18:56:51,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 372. [2024-09-12 18:56:51,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 283 states have (on average 1.5265017667844523) internal successors, (432), 332 states have internal predecessors, (432), 33 states have call successors, (33), 8 states have call predecessors, (33), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:56:51,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 496 transitions. [2024-09-12 18:56:51,676 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 496 transitions. Word has length 62 [2024-09-12 18:56:51,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:51,676 INFO L474 AbstractCegarLoop]: Abstraction has 372 states and 496 transitions. [2024-09-12 18:56:51,676 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:56:51,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:51,676 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 496 transitions. [2024-09-12 18:56:51,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-12 18:56:51,677 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:51,677 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:51,692 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-09-12 18:56:51,881 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 18:56:51,881 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:51,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:51,882 INFO L85 PathProgramCache]: Analyzing trace with hash 715528145, now seen corresponding path program 1 times [2024-09-12 18:56:51,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:51,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601174565] [2024-09-12 18:56:51,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:51,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:51,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1828179522] [2024-09-12 18:56:51,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:51,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:51,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:51,890 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:51,891 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-09-12 18:56:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:51,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:56:51,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:51,997 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:56:51,997 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:00,108 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:57:00,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:00,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601174565] [2024-09-12 18:57:00,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:00,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828179522] [2024-09-12 18:57:00,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828179522] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:57:00,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:57:00,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2024-09-12 18:57:00,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696197632] [2024-09-12 18:57:00,109 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:00,110 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:57:00,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:00,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:57:00,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=38, Unknown=2, NotChecked=0, Total=56 [2024-09-12 18:57:00,110 INFO L87 Difference]: Start difference. First operand 372 states and 496 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:57:01,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:01,806 INFO L93 Difference]: Finished difference Result 645 states and 831 transitions. [2024-09-12 18:57:01,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:57:01,806 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 61 [2024-09-12 18:57:01,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:01,808 INFO L225 Difference]: With dead ends: 645 [2024-09-12 18:57:01,808 INFO L226 Difference]: Without dead ends: 640 [2024-09-12 18:57:01,808 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 113 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2024-09-12 18:57:01,808 INFO L434 NwaCegarLoop]: 195 mSDtfsCounter, 344 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:01,809 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 724 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-09-12 18:57:01,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2024-09-12 18:57:01,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 532. [2024-09-12 18:57:01,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 426 states have (on average 1.5751173708920188) internal successors, (671), 475 states have internal predecessors, (671), 50 states have call successors, (50), 8 states have call predecessors, (50), 7 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 18:57:01,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 769 transitions. [2024-09-12 18:57:01,977 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 769 transitions. Word has length 61 [2024-09-12 18:57:01,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:01,978 INFO L474 AbstractCegarLoop]: Abstraction has 532 states and 769 transitions. [2024-09-12 18:57:01,978 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:57:01,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:01,978 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 769 transitions. [2024-09-12 18:57:01,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-09-12 18:57:01,978 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:01,979 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:01,991 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-09-12 18:57:02,179 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 18:57:02,179 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:02,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:02,180 INFO L85 PathProgramCache]: Analyzing trace with hash 706536126, now seen corresponding path program 1 times [2024-09-12 18:57:02,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:02,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603202693] [2024-09-12 18:57:02,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:02,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:02,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [83796758] [2024-09-12 18:57:02,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:02,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:02,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:02,188 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:02,188 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-09-12 18:57:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:02,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:57:02,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:02,345 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:57:02,346 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:10,671 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:57:10,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:10,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603202693] [2024-09-12 18:57:10,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:10,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83796758] [2024-09-12 18:57:10,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83796758] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:57:10,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:57:10,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2024-09-12 18:57:10,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624292090] [2024-09-12 18:57:10,672 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:10,672 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:57:10,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:10,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:57:10,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=38, Unknown=2, NotChecked=0, Total=56 [2024-09-12 18:57:10,673 INFO L87 Difference]: Start difference. First operand 532 states and 769 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:57:13,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:13,264 INFO L93 Difference]: Finished difference Result 642 states and 824 transitions. [2024-09-12 18:57:13,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:57:13,264 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 62 [2024-09-12 18:57:13,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:13,266 INFO L225 Difference]: With dead ends: 642 [2024-09-12 18:57:13,267 INFO L226 Difference]: Without dead ends: 641 [2024-09-12 18:57:13,267 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 115 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2024-09-12 18:57:13,267 INFO L434 NwaCegarLoop]: 197 mSDtfsCounter, 204 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:13,267 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 901 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-09-12 18:57:13,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-09-12 18:57:13,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 532. [2024-09-12 18:57:13,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 426 states have (on average 1.5704225352112675) internal successors, (669), 475 states have internal predecessors, (669), 50 states have call successors, (50), 8 states have call predecessors, (50), 7 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 18:57:13,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 767 transitions. [2024-09-12 18:57:13,437 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 767 transitions. Word has length 62 [2024-09-12 18:57:13,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:13,437 INFO L474 AbstractCegarLoop]: Abstraction has 532 states and 767 transitions. [2024-09-12 18:57:13,437 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:57:13,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:13,438 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 767 transitions. [2024-09-12 18:57:13,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-09-12 18:57:13,438 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:13,438 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:13,450 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-09-12 18:57:13,639 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 18:57:13,639 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:13,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:13,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1261967351, now seen corresponding path program 1 times [2024-09-12 18:57:13,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:13,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896168293] [2024-09-12 18:57:13,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:13,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:13,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [428430229] [2024-09-12 18:57:13,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:13,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:13,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:13,655 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:13,661 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-09-12 18:57:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:13,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:57:13,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:13,752 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:57:13,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:57:13,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:13,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896168293] [2024-09-12 18:57:13,753 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:13,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428430229] [2024-09-12 18:57:13,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428430229] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:13,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:13,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:57:13,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091413365] [2024-09-12 18:57:13,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:13,754 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:57:13,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:13,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:57:13,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:57:13,754 INFO L87 Difference]: Start difference. First operand 532 states and 767 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:57:14,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:14,392 INFO L93 Difference]: Finished difference Result 609 states and 857 transitions. [2024-09-12 18:57:14,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:57:14,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 64 [2024-09-12 18:57:14,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:14,395 INFO L225 Difference]: With dead ends: 609 [2024-09-12 18:57:14,395 INFO L226 Difference]: Without dead ends: 606 [2024-09-12 18:57:14,395 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:57:14,395 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 203 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:14,395 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 299 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:57:14,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-09-12 18:57:14,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 588. [2024-09-12 18:57:14,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 474 states have (on average 1.5379746835443038) internal successors, (729), 523 states have internal predecessors, (729), 58 states have call successors, (58), 8 states have call predecessors, (58), 7 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-09-12 18:57:14,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 843 transitions. [2024-09-12 18:57:14,595 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 843 transitions. Word has length 64 [2024-09-12 18:57:14,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:14,595 INFO L474 AbstractCegarLoop]: Abstraction has 588 states and 843 transitions. [2024-09-12 18:57:14,595 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:57:14,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:14,596 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 843 transitions. [2024-09-12 18:57:14,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 18:57:14,596 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:14,596 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:14,609 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-09-12 18:57:14,797 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 18:57:14,797 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:14,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:14,798 INFO L85 PathProgramCache]: Analyzing trace with hash 466282342, now seen corresponding path program 1 times [2024-09-12 18:57:14,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:14,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997533158] [2024-09-12 18:57:14,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:14,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:14,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716259003] [2024-09-12 18:57:14,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:14,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:14,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:14,807 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:14,808 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-09-12 18:57:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:14,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:57:14,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:14,900 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:57:14,900 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:57:14,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:14,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997533158] [2024-09-12 18:57:14,900 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:14,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716259003] [2024-09-12 18:57:14,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716259003] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:14,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:14,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:57:14,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65605339] [2024-09-12 18:57:14,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:14,901 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:57:14,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:14,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:57:14,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:57:14,902 INFO L87 Difference]: Start difference. First operand 588 states and 843 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:57:15,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:15,392 INFO L93 Difference]: Finished difference Result 607 states and 851 transitions. [2024-09-12 18:57:15,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:57:15,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 65 [2024-09-12 18:57:15,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:15,394 INFO L225 Difference]: With dead ends: 607 [2024-09-12 18:57:15,394 INFO L226 Difference]: Without dead ends: 606 [2024-09-12 18:57:15,395 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:57:15,395 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 214 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:15,396 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 224 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:57:15,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-09-12 18:57:15,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 588. [2024-09-12 18:57:15,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 474 states have (on average 1.5337552742616034) internal successors, (727), 523 states have internal predecessors, (727), 58 states have call successors, (58), 8 states have call predecessors, (58), 7 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-09-12 18:57:15,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 841 transitions. [2024-09-12 18:57:15,597 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 841 transitions. Word has length 65 [2024-09-12 18:57:15,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:15,597 INFO L474 AbstractCegarLoop]: Abstraction has 588 states and 841 transitions. [2024-09-12 18:57:15,598 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:57:15,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:15,598 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 841 transitions. [2024-09-12 18:57:15,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-09-12 18:57:15,598 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:15,598 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:15,610 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-09-12 18:57:15,799 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-09-12 18:57:15,799 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:15,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:15,799 INFO L85 PathProgramCache]: Analyzing trace with hash 935255464, now seen corresponding path program 1 times [2024-09-12 18:57:15,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:15,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398507825] [2024-09-12 18:57:15,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:15,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:15,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [990509747] [2024-09-12 18:57:15,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:15,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:15,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:15,816 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:15,821 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-09-12 18:57:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:15,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 18:57:15,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:16,038 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:57:16,038 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:16,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:16,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398507825] [2024-09-12 18:57:16,079 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:16,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990509747] [2024-09-12 18:57:16,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990509747] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:57:16,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:57:16,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:57:16,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761527917] [2024-09-12 18:57:16,080 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:16,080 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:57:16,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:16,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:57:16,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:57:16,081 INFO L87 Difference]: Start difference. First operand 588 states and 841 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:57:17,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:17,104 INFO L93 Difference]: Finished difference Result 634 states and 853 transitions. [2024-09-12 18:57:17,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:57:17,104 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 66 [2024-09-12 18:57:17,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:17,107 INFO L225 Difference]: With dead ends: 634 [2024-09-12 18:57:17,107 INFO L226 Difference]: Without dead ends: 632 [2024-09-12 18:57:17,107 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 66 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:57:17,107 INFO L434 NwaCegarLoop]: 137 mSDtfsCounter, 162 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:17,108 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 733 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:57:17,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2024-09-12 18:57:17,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 596. [2024-09-12 18:57:17,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 480 states have (on average 1.5270833333333333) internal successors, (733), 529 states have internal predecessors, (733), 58 states have call successors, (58), 10 states have call predecessors, (58), 9 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-09-12 18:57:17,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 847 transitions. [2024-09-12 18:57:17,313 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 847 transitions. Word has length 66 [2024-09-12 18:57:17,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:17,313 INFO L474 AbstractCegarLoop]: Abstraction has 596 states and 847 transitions. [2024-09-12 18:57:17,313 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:57:17,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:17,314 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 847 transitions. [2024-09-12 18:57:17,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-09-12 18:57:17,314 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:17,314 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:17,329 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-09-12 18:57:17,518 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 18:57:17,518 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:17,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:17,519 INFO L85 PathProgramCache]: Analyzing trace with hash -468967476, now seen corresponding path program 1 times [2024-09-12 18:57:17,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:17,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269775779] [2024-09-12 18:57:17,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:17,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:17,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [727709218] [2024-09-12 18:57:17,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:17,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:17,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:17,528 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:17,530 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-09-12 18:57:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:17,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:57:17,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:17,635 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:57:17,635 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:57:17,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:17,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269775779] [2024-09-12 18:57:17,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:17,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727709218] [2024-09-12 18:57:17,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727709218] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:17,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:17,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:57:17,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447115845] [2024-09-12 18:57:17,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:17,636 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:57:17,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:17,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:57:17,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:57:17,637 INFO L87 Difference]: Start difference. First operand 596 states and 847 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:57:18,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:18,047 INFO L93 Difference]: Finished difference Result 814 states and 1200 transitions. [2024-09-12 18:57:18,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:57:18,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2024-09-12 18:57:18,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:18,051 INFO L225 Difference]: With dead ends: 814 [2024-09-12 18:57:18,051 INFO L226 Difference]: Without dead ends: 810 [2024-09-12 18:57:18,051 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 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 18:57:18,051 INFO L434 NwaCegarLoop]: 115 mSDtfsCounter, 20 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:18,051 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 433 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:57:18,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-09-12 18:57:18,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 790. [2024-09-12 18:57:18,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 644 states have (on average 1.5372670807453417) internal successors, (990), 693 states have internal predecessors, (990), 87 states have call successors, (87), 11 states have call predecessors, (87), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-09-12 18:57:18,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1162 transitions. [2024-09-12 18:57:18,333 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1162 transitions. Word has length 69 [2024-09-12 18:57:18,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:18,334 INFO L474 AbstractCegarLoop]: Abstraction has 790 states and 1162 transitions. [2024-09-12 18:57:18,334 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:57:18,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:18,334 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1162 transitions. [2024-09-12 18:57:18,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-09-12 18:57:18,334 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:18,334 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:18,346 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-09-12 18:57:18,535 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:18,535 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:18,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:18,535 INFO L85 PathProgramCache]: Analyzing trace with hash 293981980, now seen corresponding path program 1 times [2024-09-12 18:57:18,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:18,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058982815] [2024-09-12 18:57:18,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:18,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:18,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:57:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:18,578 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:57:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:18,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:57:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:18,582 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:57:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:18,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:57:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:18,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:57:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:18,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:57:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:18,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:57:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:18,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:57:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:18,592 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:57:18,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:18,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058982815] [2024-09-12 18:57:18,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058982815] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:18,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:18,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:57:18,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253985064] [2024-09-12 18:57:18,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:18,593 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:57:18,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:18,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:57:18,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:57:18,593 INFO L87 Difference]: Start difference. First operand 790 states and 1162 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:57:19,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:19,429 INFO L93 Difference]: Finished difference Result 812 states and 1174 transitions. [2024-09-12 18:57:19,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:57:19,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 71 [2024-09-12 18:57:19,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:19,433 INFO L225 Difference]: With dead ends: 812 [2024-09-12 18:57:19,433 INFO L226 Difference]: Without dead ends: 810 [2024-09-12 18:57:19,435 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:57:19,435 INFO L434 NwaCegarLoop]: 86 mSDtfsCounter, 230 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:19,435 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 297 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:57:19,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-09-12 18:57:19,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 792. [2024-09-12 18:57:19,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 646 states have (on average 1.5325077399380804) internal successors, (990), 695 states have internal predecessors, (990), 87 states have call successors, (87), 11 states have call predecessors, (87), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-09-12 18:57:19,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1162 transitions. [2024-09-12 18:57:19,726 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1162 transitions. Word has length 71 [2024-09-12 18:57:19,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:19,727 INFO L474 AbstractCegarLoop]: Abstraction has 792 states and 1162 transitions. [2024-09-12 18:57:19,727 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:57:19,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:19,727 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1162 transitions. [2024-09-12 18:57:19,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-09-12 18:57:19,728 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:19,728 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:19,728 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-09-12 18:57:19,728 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:19,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:19,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1702162544, now seen corresponding path program 1 times [2024-09-12 18:57:19,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:19,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51242922] [2024-09-12 18:57:19,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:19,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:19,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:57:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:19,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:57:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:19,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:57:19,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:19,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:57:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:19,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:57:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:19,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 18:57:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:19,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 18:57:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:19,918 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-12 18:57:19,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:19,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51242922] [2024-09-12 18:57:19,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51242922] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:57:19,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103554593] [2024-09-12 18:57:19,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:19,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:19,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:19,920 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:19,925 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-09-12 18:57:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:19,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:57:19,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:20,071 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:57:20,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:57:20,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103554593] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:20,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:57:20,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2024-09-12 18:57:20,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422698105] [2024-09-12 18:57:20,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:20,072 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:57:20,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:20,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:57:20,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:57:20,073 INFO L87 Difference]: Start difference. First operand 792 states and 1162 transitions. Second operand has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:57:21,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:21,058 INFO L93 Difference]: Finished difference Result 845 states and 1170 transitions. [2024-09-12 18:57:21,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:57:21,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 70 [2024-09-12 18:57:21,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:21,062 INFO L225 Difference]: With dead ends: 845 [2024-09-12 18:57:21,062 INFO L226 Difference]: Without dead ends: 844 [2024-09-12 18:57:21,062 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:57:21,062 INFO L434 NwaCegarLoop]: 126 mSDtfsCounter, 438 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:21,062 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 620 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:57:21,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2024-09-12 18:57:21,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 792. [2024-09-12 18:57:21,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 646 states have (on average 1.5294117647058822) internal successors, (988), 695 states have internal predecessors, (988), 87 states have call successors, (87), 11 states have call predecessors, (87), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-09-12 18:57:21,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1160 transitions. [2024-09-12 18:57:21,345 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1160 transitions. Word has length 70 [2024-09-12 18:57:21,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:21,345 INFO L474 AbstractCegarLoop]: Abstraction has 792 states and 1160 transitions. [2024-09-12 18:57:21,345 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:57:21,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:21,346 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1160 transitions. [2024-09-12 18:57:21,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-09-12 18:57:21,346 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:21,346 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:21,361 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-09-12 18:57:21,547 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:21,547 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:21,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:21,547 INFO L85 PathProgramCache]: Analyzing trace with hash 523506918, now seen corresponding path program 1 times [2024-09-12 18:57:21,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:21,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811577995] [2024-09-12 18:57:21,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:21,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:21,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:57:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:21,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:57:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:21,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:57:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:21,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:57:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:21,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:57:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:21,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:57:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:21,610 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:57:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:21,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:57:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:21,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:57:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:21,617 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:57:21,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:21,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811577995] [2024-09-12 18:57:21,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811577995] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:21,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:21,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:57:21,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160350591] [2024-09-12 18:57:21,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:21,618 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:57:21,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:21,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:57:21,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:57:21,619 INFO L87 Difference]: Start difference. First operand 792 states and 1160 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:57:22,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:22,269 INFO L93 Difference]: Finished difference Result 821 states and 1168 transitions. [2024-09-12 18:57:22,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:57:22,269 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 72 [2024-09-12 18:57:22,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:22,272 INFO L225 Difference]: With dead ends: 821 [2024-09-12 18:57:22,273 INFO L226 Difference]: Without dead ends: 819 [2024-09-12 18:57:22,273 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:57:22,273 INFO L434 NwaCegarLoop]: 93 mSDtfsCounter, 321 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:22,273 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 439 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:57:22,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2024-09-12 18:57:22,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 792. [2024-09-12 18:57:22,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 646 states have (on average 1.5263157894736843) internal successors, (986), 695 states have internal predecessors, (986), 87 states have call successors, (87), 11 states have call predecessors, (87), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-09-12 18:57:22,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1158 transitions. [2024-09-12 18:57:22,575 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1158 transitions. Word has length 72 [2024-09-12 18:57:22,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:22,575 INFO L474 AbstractCegarLoop]: Abstraction has 792 states and 1158 transitions. [2024-09-12 18:57:22,575 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:57:22,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:22,575 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1158 transitions. [2024-09-12 18:57:22,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-09-12 18:57:22,576 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:22,576 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:22,576 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-09-12 18:57:22,576 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:22,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:22,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1227431432, now seen corresponding path program 1 times [2024-09-12 18:57:22,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:22,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653787822] [2024-09-12 18:57:22,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:22,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:22,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1201896496] [2024-09-12 18:57:22,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:22,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:22,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:22,587 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:22,588 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-09-12 18:57:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:22,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:57:22,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:22,713 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:57:22,713 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:22,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:22,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653787822] [2024-09-12 18:57:22,735 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:22,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201896496] [2024-09-12 18:57:22,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201896496] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:57:22,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:57:22,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 18:57:22,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415778357] [2024-09-12 18:57:22,736 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:22,736 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:57:22,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:22,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:57:22,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:57:22,737 INFO L87 Difference]: Start difference. First operand 792 states and 1158 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:57:23,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:23,401 INFO L93 Difference]: Finished difference Result 835 states and 1174 transitions. [2024-09-12 18:57:23,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:57:23,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 71 [2024-09-12 18:57:23,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:23,404 INFO L225 Difference]: With dead ends: 835 [2024-09-12 18:57:23,404 INFO L226 Difference]: Without dead ends: 834 [2024-09-12 18:57:23,405 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:57:23,405 INFO L434 NwaCegarLoop]: 120 mSDtfsCounter, 358 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:23,405 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 359 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:57:23,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-09-12 18:57:23,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 792. [2024-09-12 18:57:23,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 646 states have (on average 1.5139318885448916) internal successors, (978), 695 states have internal predecessors, (978), 87 states have call successors, (87), 11 states have call predecessors, (87), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-09-12 18:57:23,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1150 transitions. [2024-09-12 18:57:23,693 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1150 transitions. Word has length 71 [2024-09-12 18:57:23,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:23,694 INFO L474 AbstractCegarLoop]: Abstraction has 792 states and 1150 transitions. [2024-09-12 18:57:23,694 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:57:23,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:23,694 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1150 transitions. [2024-09-12 18:57:23,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-09-12 18:57:23,695 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:23,695 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:23,706 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-09-12 18:57:23,895 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-09-12 18:57:23,895 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:23,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:23,896 INFO L85 PathProgramCache]: Analyzing trace with hash 578978837, now seen corresponding path program 1 times [2024-09-12 18:57:23,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:23,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997824199] [2024-09-12 18:57:23,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:23,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:23,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:57:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:23,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:57:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:23,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:57:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:23,931 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:57:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:23,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:57:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:23,934 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:57:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:23,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:57:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:23,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:57:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:23,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:57:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:23,944 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:57:23,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:23,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997824199] [2024-09-12 18:57:23,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997824199] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:23,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:23,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:57:23,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978738720] [2024-09-12 18:57:23,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:23,945 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:57:23,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:23,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:57:23,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:57:23,945 INFO L87 Difference]: Start difference. First operand 792 states and 1150 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:57:24,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:24,296 INFO L93 Difference]: Finished difference Result 835 states and 1205 transitions. [2024-09-12 18:57:24,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:57:24,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 74 [2024-09-12 18:57:24,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:24,298 INFO L225 Difference]: With dead ends: 835 [2024-09-12 18:57:24,298 INFO L226 Difference]: Without dead ends: 834 [2024-09-12 18:57:24,299 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:57:24,299 INFO L434 NwaCegarLoop]: 122 mSDtfsCounter, 20 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:24,299 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 236 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:57:24,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-09-12 18:57:24,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 797. [2024-09-12 18:57:24,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 651 states have (on average 1.5099846390168972) internal successors, (983), 700 states have internal predecessors, (983), 87 states have call successors, (87), 11 states have call predecessors, (87), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-09-12 18:57:24,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1155 transitions. [2024-09-12 18:57:24,655 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1155 transitions. Word has length 74 [2024-09-12 18:57:24,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:24,655 INFO L474 AbstractCegarLoop]: Abstraction has 797 states and 1155 transitions. [2024-09-12 18:57:24,655 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:57:24,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:24,655 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1155 transitions. [2024-09-12 18:57:24,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-09-12 18:57:24,656 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:24,656 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:24,656 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-09-12 18:57:24,656 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:24,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:24,656 INFO L85 PathProgramCache]: Analyzing trace with hash 768474913, now seen corresponding path program 1 times [2024-09-12 18:57:24,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:24,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737603583] [2024-09-12 18:57:24,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:24,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:24,697 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:57:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:24,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:57:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:24,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:57:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:24,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:57:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:24,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:57:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:24,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:57:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:24,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:57:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:24,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:57:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:24,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:57:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:24,712 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:57:24,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:24,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737603583] [2024-09-12 18:57:24,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737603583] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:24,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:24,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:57:24,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182968189] [2024-09-12 18:57:24,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:24,712 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:57:24,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:24,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:57:24,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:57:24,713 INFO L87 Difference]: Start difference. First operand 797 states and 1155 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:57:25,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:25,292 INFO L93 Difference]: Finished difference Result 813 states and 1155 transitions. [2024-09-12 18:57:25,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:57:25,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 75 [2024-09-12 18:57:25,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:25,295 INFO L225 Difference]: With dead ends: 813 [2024-09-12 18:57:25,296 INFO L226 Difference]: Without dead ends: 812 [2024-09-12 18:57:25,296 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:57:25,296 INFO L434 NwaCegarLoop]: 96 mSDtfsCounter, 208 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:25,296 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 378 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:57:25,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2024-09-12 18:57:25,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 797. [2024-09-12 18:57:25,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 651 states have (on average 1.5084485407066053) internal successors, (982), 700 states have internal predecessors, (982), 87 states have call successors, (87), 11 states have call predecessors, (87), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-09-12 18:57:25,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1154 transitions. [2024-09-12 18:57:25,582 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1154 transitions. Word has length 75 [2024-09-12 18:57:25,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:25,582 INFO L474 AbstractCegarLoop]: Abstraction has 797 states and 1154 transitions. [2024-09-12 18:57:25,582 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:57:25,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:25,582 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1154 transitions. [2024-09-12 18:57:25,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 18:57:25,583 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:25,583 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:25,583 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-09-12 18:57:25,583 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:25,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:25,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1947081321, now seen corresponding path program 1 times [2024-09-12 18:57:25,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:25,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964638277] [2024-09-12 18:57:25,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:25,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:25,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:57:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:25,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:57:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:25,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:57:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:25,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:57:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:25,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:57:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:25,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:57:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:25,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:57:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:25,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:57:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:25,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:57:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:25,634 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:57:25,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:25,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964638277] [2024-09-12 18:57:25,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964638277] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:25,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:25,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:57:25,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519347936] [2024-09-12 18:57:25,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:25,635 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:57:25,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:25,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:57:25,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:57:25,636 INFO L87 Difference]: Start difference. First operand 797 states and 1154 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:57:26,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:26,088 INFO L93 Difference]: Finished difference Result 872 states and 1227 transitions. [2024-09-12 18:57:26,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:57:26,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 76 [2024-09-12 18:57:26,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:26,091 INFO L225 Difference]: With dead ends: 872 [2024-09-12 18:57:26,091 INFO L226 Difference]: Without dead ends: 870 [2024-09-12 18:57:26,092 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:57:26,093 INFO L434 NwaCegarLoop]: 116 mSDtfsCounter, 96 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:26,093 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 265 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:57:26,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-09-12 18:57:26,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 817. [2024-09-12 18:57:26,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 671 states have (on average 1.4992548435171387) internal successors, (1006), 720 states have internal predecessors, (1006), 87 states have call successors, (87), 11 states have call predecessors, (87), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-09-12 18:57:26,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1178 transitions. [2024-09-12 18:57:26,385 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1178 transitions. Word has length 76 [2024-09-12 18:57:26,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:26,385 INFO L474 AbstractCegarLoop]: Abstraction has 817 states and 1178 transitions. [2024-09-12 18:57:26,385 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:57:26,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:26,385 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1178 transitions. [2024-09-12 18:57:26,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-09-12 18:57:26,386 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:26,386 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:26,386 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-09-12 18:57:26,386 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:26,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:26,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1194021565, now seen corresponding path program 1 times [2024-09-12 18:57:26,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:26,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864831917] [2024-09-12 18:57:26,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:26,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:26,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [339041536] [2024-09-12 18:57:26,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:26,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:26,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:26,394 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:26,395 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-09-12 18:57:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:26,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:57:26,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:26,550 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:57:26,550 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:26,645 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:57:26,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:26,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864831917] [2024-09-12 18:57:26,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:26,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339041536] [2024-09-12 18:57:26,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339041536] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:57:26,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:57:26,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-09-12 18:57:26,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911241998] [2024-09-12 18:57:26,645 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:26,646 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:57:26,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:26,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:57:26,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:57:26,646 INFO L87 Difference]: Start difference. First operand 817 states and 1178 transitions. Second operand has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 12 states have internal predecessors, (83), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-09-12 18:57:28,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:28,490 INFO L93 Difference]: Finished difference Result 960 states and 1273 transitions. [2024-09-12 18:57:28,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:57:28,491 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 12 states have internal predecessors, (83), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 77 [2024-09-12 18:57:28,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:28,498 INFO L225 Difference]: With dead ends: 960 [2024-09-12 18:57:28,499 INFO L226 Difference]: Without dead ends: 959 [2024-09-12 18:57:28,499 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=416, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:57:28,499 INFO L434 NwaCegarLoop]: 112 mSDtfsCounter, 923 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:28,500 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 632 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 18:57:28,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2024-09-12 18:57:28,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 863. [2024-09-12 18:57:28,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 711 states have (on average 1.479606188466948) internal successors, (1052), 760 states have internal predecessors, (1052), 93 states have call successors, (93), 11 states have call predecessors, (93), 10 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2024-09-12 18:57:28,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1236 transitions. [2024-09-12 18:57:28,840 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1236 transitions. Word has length 77 [2024-09-12 18:57:28,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:28,841 INFO L474 AbstractCegarLoop]: Abstraction has 863 states and 1236 transitions. [2024-09-12 18:57:28,841 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 12 states have internal predecessors, (83), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-09-12 18:57:28,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:28,841 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1236 transitions. [2024-09-12 18:57:28,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 18:57:28,841 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:28,841 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:28,853 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-09-12 18:57:29,042 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-09-12 18:57:29,042 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:29,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:29,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1640037024, now seen corresponding path program 1 times [2024-09-12 18:57:29,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:29,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509078755] [2024-09-12 18:57:29,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:29,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:29,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1031599972] [2024-09-12 18:57:29,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:29,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:29,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:29,054 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:29,055 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-09-12 18:57:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:29,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:57:29,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:29,165 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:57:29,165 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:57:29,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:29,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509078755] [2024-09-12 18:57:29,166 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:29,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031599972] [2024-09-12 18:57:29,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031599972] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:29,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:29,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:57:29,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901110696] [2024-09-12 18:57:29,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:29,166 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:57:29,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:29,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:57:29,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:57:29,167 INFO L87 Difference]: Start difference. First operand 863 states and 1236 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:57:29,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:29,866 INFO L93 Difference]: Finished difference Result 898 states and 1260 transitions. [2024-09-12 18:57:29,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:57:29,866 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 78 [2024-09-12 18:57:29,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:29,872 INFO L225 Difference]: With dead ends: 898 [2024-09-12 18:57:29,872 INFO L226 Difference]: Without dead ends: 897 [2024-09-12 18:57:29,872 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:57:29,873 INFO L434 NwaCegarLoop]: 117 mSDtfsCounter, 270 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:29,873 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 375 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:57:29,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2024-09-12 18:57:30,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 863. [2024-09-12 18:57:30,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 711 states have (on average 1.4683544303797469) internal successors, (1044), 760 states have internal predecessors, (1044), 93 states have call successors, (93), 11 states have call predecessors, (93), 10 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2024-09-12 18:57:30,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1228 transitions. [2024-09-12 18:57:30,230 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1228 transitions. Word has length 78 [2024-09-12 18:57:30,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:30,230 INFO L474 AbstractCegarLoop]: Abstraction has 863 states and 1228 transitions. [2024-09-12 18:57:30,231 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:57:30,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:30,231 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1228 transitions. [2024-09-12 18:57:30,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-09-12 18:57:30,231 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:30,231 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:30,243 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-09-12 18:57:30,435 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:30,435 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:30,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:30,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1434056298, now seen corresponding path program 1 times [2024-09-12 18:57:30,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:30,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046141819] [2024-09-12 18:57:30,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:30,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:30,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:57:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:30,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:57:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:30,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:57:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:30,493 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:57:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:30,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:57:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:30,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 18:57:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:30,498 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 18:57:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:30,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 18:57:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:30,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:57:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:30,504 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:57:30,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:30,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046141819] [2024-09-12 18:57:30,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046141819] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:57:30,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754037970] [2024-09-12 18:57:30,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:30,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:30,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:30,509 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:30,513 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-09-12 18:57:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:30,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:57:30,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:30,600 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:57:30,600 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:30,697 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:57:30,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754037970] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:57:30,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:57:30,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-09-12 18:57:30,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831736217] [2024-09-12 18:57:30,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:30,699 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:57:30,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:30,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:57:30,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:57:30,700 INFO L87 Difference]: Start difference. First operand 863 states and 1228 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-09-12 18:57:32,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:32,376 INFO L93 Difference]: Finished difference Result 965 states and 1267 transitions. [2024-09-12 18:57:32,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:57:32,377 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 84 [2024-09-12 18:57:32,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:32,380 INFO L225 Difference]: With dead ends: 965 [2024-09-12 18:57:32,380 INFO L226 Difference]: Without dead ends: 963 [2024-09-12 18:57:32,380 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=169, Invalid=383, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:57:32,380 INFO L434 NwaCegarLoop]: 121 mSDtfsCounter, 934 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:32,380 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 784 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:57:32,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2024-09-12 18:57:32,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 866. [2024-09-12 18:57:32,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 713 states have (on average 1.450210378681627) internal successors, (1034), 761 states have internal predecessors, (1034), 95 states have call successors, (95), 11 states have call predecessors, (95), 10 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 18:57:32,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1222 transitions. [2024-09-12 18:57:32,730 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1222 transitions. Word has length 84 [2024-09-12 18:57:32,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:32,730 INFO L474 AbstractCegarLoop]: Abstraction has 866 states and 1222 transitions. [2024-09-12 18:57:32,730 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-09-12 18:57:32,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:32,730 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1222 transitions. [2024-09-12 18:57:32,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-09-12 18:57:32,731 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:32,731 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:32,742 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-09-12 18:57:32,931 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:32,932 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:32,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:32,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1506072148, now seen corresponding path program 1 times [2024-09-12 18:57:32,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:32,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998071705] [2024-09-12 18:57:32,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:32,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:32,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:57:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:32,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:57:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:32,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:57:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:32,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:57:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:32,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:57:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:32,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 18:57:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:32,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 18:57:32,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:32,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 18:57:32,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:32,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:57:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:32,994 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:57:32,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:32,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998071705] [2024-09-12 18:57:32,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998071705] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:32,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:32,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:57:32,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806037844] [2024-09-12 18:57:32,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:32,995 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:57:32,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:32,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:57:32,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:57:32,995 INFO L87 Difference]: Start difference. First operand 866 states and 1222 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:57:33,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:33,757 INFO L93 Difference]: Finished difference Result 907 states and 1248 transitions. [2024-09-12 18:57:33,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:57:33,758 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 85 [2024-09-12 18:57:33,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:33,761 INFO L225 Difference]: With dead ends: 907 [2024-09-12 18:57:33,761 INFO L226 Difference]: Without dead ends: 905 [2024-09-12 18:57:33,761 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:57:33,761 INFO L434 NwaCegarLoop]: 115 mSDtfsCounter, 298 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:33,761 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 414 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:57:33,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-09-12 18:57:34,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 878. [2024-09-12 18:57:34,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 725 states have (on average 1.4289655172413793) internal successors, (1036), 773 states have internal predecessors, (1036), 95 states have call successors, (95), 11 states have call predecessors, (95), 10 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 18:57:34,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1224 transitions. [2024-09-12 18:57:34,119 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1224 transitions. Word has length 85 [2024-09-12 18:57:34,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:34,119 INFO L474 AbstractCegarLoop]: Abstraction has 878 states and 1224 transitions. [2024-09-12 18:57:34,119 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:57:34,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:34,119 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1224 transitions. [2024-09-12 18:57:34,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-09-12 18:57:34,120 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:34,120 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:34,120 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-09-12 18:57:34,120 INFO L399 AbstractCegarLoop]: === Iteration 53 === Targeting mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:34,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:34,120 INFO L85 PathProgramCache]: Analyzing trace with hash 459061484, now seen corresponding path program 1 times [2024-09-12 18:57:34,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:34,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069907981] [2024-09-12 18:57:34,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:34,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:34,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:34,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1181491769] [2024-09-12 18:57:34,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:34,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:34,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:34,133 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:34,137 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-09-12 18:57:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:34,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:57:34,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:34,320 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:57:34,320 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:57:34,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:34,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069907981] [2024-09-12 18:57:34,321 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:34,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181491769] [2024-09-12 18:57:34,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181491769] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:34,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:34,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:57:34,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354126214] [2024-09-12 18:57:34,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:34,321 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:57:34,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:34,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:57:34,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:57:34,322 INFO L87 Difference]: Start difference. First operand 878 states and 1224 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:57:34,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:34,971 INFO L93 Difference]: Finished difference Result 903 states and 1231 transitions. [2024-09-12 18:57:34,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:57:34,971 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 85 [2024-09-12 18:57:34,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:34,973 INFO L225 Difference]: With dead ends: 903 [2024-09-12 18:57:34,974 INFO L226 Difference]: Without dead ends: 900 [2024-09-12 18:57:34,974 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:57:34,974 INFO L434 NwaCegarLoop]: 140 mSDtfsCounter, 78 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:34,974 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 369 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:57:34,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2024-09-12 18:57:35,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 878. [2024-09-12 18:57:35,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 725 states have (on average 1.423448275862069) internal successors, (1032), 773 states have internal predecessors, (1032), 95 states have call successors, (95), 11 states have call predecessors, (95), 10 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 18:57:35,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1220 transitions. [2024-09-12 18:57:35,325 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1220 transitions. Word has length 85 [2024-09-12 18:57:35,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:35,325 INFO L474 AbstractCegarLoop]: Abstraction has 878 states and 1220 transitions. [2024-09-12 18:57:35,325 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:57:35,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:35,325 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1220 transitions. [2024-09-12 18:57:35,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-09-12 18:57:35,326 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:35,326 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:35,340 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-09-12 18:57:35,526 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:35,527 INFO L399 AbstractCegarLoop]: === Iteration 54 === Targeting mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:35,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:35,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1346004286, now seen corresponding path program 1 times [2024-09-12 18:57:35,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:35,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764997645] [2024-09-12 18:57:35,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:35,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:35,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1143215654] [2024-09-12 18:57:35,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:35,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:35,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:35,538 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:35,542 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-09-12 18:57:35,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:35,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:57:35,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:35,729 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:57:35,730 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:36,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:36,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764997645] [2024-09-12 18:57:36,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:36,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143215654] [2024-09-12 18:57:36,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143215654] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:57:36,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:57:36,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 18:57:36,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492186612] [2024-09-12 18:57:36,185 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:36,185 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:57:36,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:36,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:57:36,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:57:36,186 INFO L87 Difference]: Start difference. First operand 878 states and 1220 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:57:36,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:36,874 INFO L93 Difference]: Finished difference Result 982 states and 1330 transitions. [2024-09-12 18:57:36,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:57:36,874 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 86 [2024-09-12 18:57:36,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:36,877 INFO L225 Difference]: With dead ends: 982 [2024-09-12 18:57:36,880 INFO L226 Difference]: Without dead ends: 981 [2024-09-12 18:57:36,880 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:57:36,880 INFO L434 NwaCegarLoop]: 111 mSDtfsCounter, 187 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:36,880 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 474 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:57:36,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2024-09-12 18:57:37,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 887. [2024-09-12 18:57:37,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 734 states have (on average 1.4196185286103542) internal successors, (1042), 782 states have internal predecessors, (1042), 95 states have call successors, (95), 11 states have call predecessors, (95), 10 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 18:57:37,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1230 transitions. [2024-09-12 18:57:37,236 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1230 transitions. Word has length 86 [2024-09-12 18:57:37,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:37,236 INFO L474 AbstractCegarLoop]: Abstraction has 887 states and 1230 transitions. [2024-09-12 18:57:37,236 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:57:37,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:37,237 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1230 transitions. [2024-09-12 18:57:37,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-09-12 18:57:37,237 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:37,237 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:37,249 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-09-12 18:57:37,438 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,45 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:37,438 INFO L399 AbstractCegarLoop]: === Iteration 55 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:37,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:37,438 INFO L85 PathProgramCache]: Analyzing trace with hash 2128112795, now seen corresponding path program 1 times [2024-09-12 18:57:37,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:37,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102125854] [2024-09-12 18:57:37,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:37,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:37,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:57:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:37,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:57:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:37,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:57:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:37,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:57:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:37,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:57:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:37,493 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 18:57:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:37,498 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 18:57:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:37,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 18:57:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:37,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:57:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:37,502 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:57:37,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:37,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102125854] [2024-09-12 18:57:37,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102125854] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:57:37,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706512410] [2024-09-12 18:57:37,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:37,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:37,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:37,506 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:37,512 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-09-12 18:57:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:37,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:57:37,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:37,614 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:57:37,615 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:37,799 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:57:37,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706512410] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:57:37,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:57:37,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 15 [2024-09-12 18:57:37,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990313160] [2024-09-12 18:57:37,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:37,800 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:57:37,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:37,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:57:37,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:57:37,800 INFO L87 Difference]: Start difference. First operand 887 states and 1230 transitions. Second operand has 16 states, 15 states have (on average 8.866666666666667) internal successors, (133), 16 states have internal predecessors, (133), 7 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-09-12 18:57:38,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:38,889 INFO L93 Difference]: Finished difference Result 908 states and 1239 transitions. [2024-09-12 18:57:38,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 18:57:38,890 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.866666666666667) internal successors, (133), 16 states have internal predecessors, (133), 7 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 88 [2024-09-12 18:57:38,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:38,892 INFO L225 Difference]: With dead ends: 908 [2024-09-12 18:57:38,893 INFO L226 Difference]: Without dead ends: 905 [2024-09-12 18:57:38,893 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 18:57:38,893 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 727 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:38,894 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 428 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:57:38,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-09-12 18:57:39,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 873. [2024-09-12 18:57:39,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 722 states have (on average 1.4016620498614958) internal successors, (1012), 768 states have internal predecessors, (1012), 95 states have call successors, (95), 11 states have call predecessors, (95), 10 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 18:57:39,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1200 transitions. [2024-09-12 18:57:39,390 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1200 transitions. Word has length 88 [2024-09-12 18:57:39,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:39,390 INFO L474 AbstractCegarLoop]: Abstraction has 873 states and 1200 transitions. [2024-09-12 18:57:39,390 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.866666666666667) internal successors, (133), 16 states have internal predecessors, (133), 7 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-09-12 18:57:39,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:39,390 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1200 transitions. [2024-09-12 18:57:39,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-09-12 18:57:39,391 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:39,391 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:39,403 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-09-12 18:57:39,591 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,46 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:39,592 INFO L399 AbstractCegarLoop]: === Iteration 56 === Targeting mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:39,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:39,592 INFO L85 PathProgramCache]: Analyzing trace with hash 724968256, now seen corresponding path program 1 times [2024-09-12 18:57:39,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:39,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476859162] [2024-09-12 18:57:39,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:39,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:39,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [405589801] [2024-09-12 18:57:39,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:39,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:39,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:39,602 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:39,603 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-09-12 18:57:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:39,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:57:39,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:39,843 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:57:39,843 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:57:39,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:39,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476859162] [2024-09-12 18:57:39,844 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:39,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405589801] [2024-09-12 18:57:39,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405589801] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:39,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:39,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:57:39,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013093209] [2024-09-12 18:57:39,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:39,845 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:57:39,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:39,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:57:39,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:57:39,845 INFO L87 Difference]: Start difference. First operand 873 states and 1200 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:57:40,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:40,623 INFO L93 Difference]: Finished difference Result 895 states and 1206 transitions. [2024-09-12 18:57:40,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:57:40,623 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 88 [2024-09-12 18:57:40,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:40,625 INFO L225 Difference]: With dead ends: 895 [2024-09-12 18:57:40,625 INFO L226 Difference]: Without dead ends: 894 [2024-09-12 18:57:40,626 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:57:40,626 INFO L434 NwaCegarLoop]: 135 mSDtfsCounter, 81 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:40,626 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 407 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:57:40,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2024-09-12 18:57:40,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 873. [2024-09-12 18:57:40,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 722 states have (on average 1.4002770083102494) internal successors, (1011), 768 states have internal predecessors, (1011), 95 states have call successors, (95), 11 states have call predecessors, (95), 10 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 18:57:40,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1199 transitions. [2024-09-12 18:57:40,990 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1199 transitions. Word has length 88 [2024-09-12 18:57:40,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:40,990 INFO L474 AbstractCegarLoop]: Abstraction has 873 states and 1199 transitions. [2024-09-12 18:57:40,990 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:57:40,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:40,990 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1199 transitions. [2024-09-12 18:57:40,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-09-12 18:57:40,991 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:40,991 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:41,005 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-09-12 18:57:41,195 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,47 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:41,196 INFO L399 AbstractCegarLoop]: === Iteration 57 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:41,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:41,196 INFO L85 PathProgramCache]: Analyzing trace with hash 825882210, now seen corresponding path program 1 times [2024-09-12 18:57:41,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:41,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136640503] [2024-09-12 18:57:41,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:41,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:41,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [730690460] [2024-09-12 18:57:41,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:41,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:41,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:41,219 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:41,220 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-09-12 18:57:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:41,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:57:41,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:41,415 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:57:41,416 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:41,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:41,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136640503] [2024-09-12 18:57:41,470 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:41,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730690460] [2024-09-12 18:57:41,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730690460] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:57:41,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:57:41,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:57:41,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43489061] [2024-09-12 18:57:41,471 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:41,471 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:57:41,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:41,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:57:41,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:57:41,474 INFO L87 Difference]: Start difference. First operand 873 states and 1199 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:57:42,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:42,386 INFO L93 Difference]: Finished difference Result 933 states and 1241 transitions. [2024-09-12 18:57:42,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:57:42,386 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 94 [2024-09-12 18:57:42,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:42,388 INFO L225 Difference]: With dead ends: 933 [2024-09-12 18:57:42,388 INFO L226 Difference]: Without dead ends: 930 [2024-09-12 18:57:42,389 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:57:42,389 INFO L434 NwaCegarLoop]: 167 mSDtfsCounter, 121 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:42,389 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 685 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:57:42,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2024-09-12 18:57:42,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 875. [2024-09-12 18:57:42,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 724 states have (on average 1.3895027624309393) internal successors, (1006), 770 states have internal predecessors, (1006), 95 states have call successors, (95), 11 states have call predecessors, (95), 10 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 18:57:42,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1194 transitions. [2024-09-12 18:57:42,778 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1194 transitions. Word has length 94 [2024-09-12 18:57:42,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:42,778 INFO L474 AbstractCegarLoop]: Abstraction has 875 states and 1194 transitions. [2024-09-12 18:57:42,778 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:57:42,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:42,778 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1194 transitions. [2024-09-12 18:57:42,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-09-12 18:57:42,779 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:42,779 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:42,794 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2024-09-12 18:57:42,980 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-09-12 18:57:42,980 INFO L399 AbstractCegarLoop]: === Iteration 58 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:42,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:42,981 INFO L85 PathProgramCache]: Analyzing trace with hash -167455104, now seen corresponding path program 1 times [2024-09-12 18:57:42,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:42,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911724730] [2024-09-12 18:57:42,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:42,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:42,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2106568015] [2024-09-12 18:57:42,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:42,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:42,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:42,994 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:42,996 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-09-12 18:57:43,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:43,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:57:43,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:43,242 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:57:43,242 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:43,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:43,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911724730] [2024-09-12 18:57:43,697 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:43,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106568015] [2024-09-12 18:57:43,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106568015] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:57:43,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:57:43,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:57:43,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43347310] [2024-09-12 18:57:43,697 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:43,698 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:57:43,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:43,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:57:43,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:57:43,698 INFO L87 Difference]: Start difference. First operand 875 states and 1194 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:57:44,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:44,647 INFO L93 Difference]: Finished difference Result 1104 states and 1470 transitions. [2024-09-12 18:57:44,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:57:44,647 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 95 [2024-09-12 18:57:44,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:44,650 INFO L225 Difference]: With dead ends: 1104 [2024-09-12 18:57:44,650 INFO L226 Difference]: Without dead ends: 1103 [2024-09-12 18:57:44,650 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:57:44,650 INFO L434 NwaCegarLoop]: 140 mSDtfsCounter, 220 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:44,650 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 598 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:57:44,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2024-09-12 18:57:45,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 885. [2024-09-12 18:57:45,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 734 states have (on average 1.3869209809264305) internal successors, (1018), 780 states have internal predecessors, (1018), 95 states have call successors, (95), 11 states have call predecessors, (95), 10 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 18:57:45,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1206 transitions. [2024-09-12 18:57:45,042 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1206 transitions. Word has length 95 [2024-09-12 18:57:45,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:45,042 INFO L474 AbstractCegarLoop]: Abstraction has 885 states and 1206 transitions. [2024-09-12 18:57:45,042 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:57:45,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:45,042 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1206 transitions. [2024-09-12 18:57:45,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-09-12 18:57:45,043 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:45,043 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:45,055 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2024-09-12 18:57:45,244 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-09-12 18:57:45,244 INFO L399 AbstractCegarLoop]: === Iteration 59 === Targeting mainErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:45,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:45,244 INFO L85 PathProgramCache]: Analyzing trace with hash 468204500, now seen corresponding path program 1 times [2024-09-12 18:57:45,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:45,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373615995] [2024-09-12 18:57:45,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:45,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:45,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [524698048] [2024-09-12 18:57:45,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:45,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:45,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:45,255 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:45,256 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-09-12 18:57:45,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:45,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-12 18:57:45,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:45,684 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-09-12 18:57:45,684 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:50,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:50,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373615995] [2024-09-12 18:57:50,419 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:50,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524698048] [2024-09-12 18:57:50,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524698048] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:57:50,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:57:50,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:57:50,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502349117] [2024-09-12 18:57:50,420 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:50,420 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:57:50,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:50,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:57:50,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=225, Unknown=1, NotChecked=0, Total=272 [2024-09-12 18:57:50,421 INFO L87 Difference]: Start difference. First operand 885 states and 1206 transitions. Second operand has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:57:51,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:51,840 INFO L93 Difference]: Finished difference Result 1128 states and 1515 transitions. [2024-09-12 18:57:51,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:57:51,840 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 95 [2024-09-12 18:57:51,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:51,842 INFO L225 Difference]: With dead ends: 1128 [2024-09-12 18:57:51,843 INFO L226 Difference]: Without dead ends: 1126 [2024-09-12 18:57:51,843 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=106, Invalid=493, Unknown=1, NotChecked=0, Total=600 [2024-09-12 18:57:51,844 INFO L434 NwaCegarLoop]: 88 mSDtfsCounter, 572 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:51,847 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 634 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:57:51,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2024-09-12 18:57:52,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 895. [2024-09-12 18:57:52,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 744 states have (on average 1.3830645161290323) internal successors, (1029), 790 states have internal predecessors, (1029), 95 states have call successors, (95), 11 states have call predecessors, (95), 10 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 18:57:52,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1217 transitions. [2024-09-12 18:57:52,247 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1217 transitions. Word has length 95 [2024-09-12 18:57:52,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:52,247 INFO L474 AbstractCegarLoop]: Abstraction has 895 states and 1217 transitions. [2024-09-12 18:57:52,247 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:57:52,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:52,248 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1217 transitions. [2024-09-12 18:57:52,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-09-12 18:57:52,248 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:52,248 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:52,263 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2024-09-12 18:57:52,452 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-09-12 18:57:52,452 INFO L399 AbstractCegarLoop]: === Iteration 60 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:52,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:52,453 INFO L85 PathProgramCache]: Analyzing trace with hash -896140764, now seen corresponding path program 1 times [2024-09-12 18:57:52,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:52,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244583729] [2024-09-12 18:57:52,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:52,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:52,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:57:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:52,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:57:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:52,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:57:52,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:52,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:57:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:52,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:57:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:52,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 18:57:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:52,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 18:57:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:52,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 18:57:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:52,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:57:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:52,652 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-09-12 18:57:52,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:52,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244583729] [2024-09-12 18:57:52,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244583729] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:57:52,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352197483] [2024-09-12 18:57:52,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:52,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:52,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:52,655 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:52,656 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-09-12 18:57:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:52,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:57:52,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:52,760 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-09-12 18:57:52,760 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:53,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352197483] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:57:53,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:57:53,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-09-12 18:57:53,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789674613] [2024-09-12 18:57:53,151 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:53,151 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:57:53,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:53,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:57:53,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:57:53,152 INFO L87 Difference]: Start difference. First operand 895 states and 1217 transitions. Second operand has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:57:54,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:54,850 INFO L93 Difference]: Finished difference Result 1127 states and 1510 transitions. [2024-09-12 18:57:54,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:57:54,851 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 96 [2024-09-12 18:57:54,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:54,853 INFO L225 Difference]: With dead ends: 1127 [2024-09-12 18:57:54,857 INFO L226 Difference]: Without dead ends: 1126 [2024-09-12 18:57:54,858 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:57:54,858 INFO L434 NwaCegarLoop]: 145 mSDtfsCounter, 317 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:54,859 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 846 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:57:54,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2024-09-12 18:57:55,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1037. [2024-09-12 18:57:55,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 870 states have (on average 1.4229885057471265) internal successors, (1238), 916 states have internal predecessors, (1238), 111 states have call successors, (111), 11 states have call predecessors, (111), 10 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2024-09-12 18:57:55,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1458 transitions. [2024-09-12 18:57:55,314 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1458 transitions. Word has length 96 [2024-09-12 18:57:55,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:55,314 INFO L474 AbstractCegarLoop]: Abstraction has 1037 states and 1458 transitions. [2024-09-12 18:57:55,315 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:57:55,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:55,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1458 transitions. [2024-09-12 18:57:55,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-09-12 18:57:55,315 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:55,316 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:55,327 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-09-12 18:57:55,519 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-09-12 18:57:55,519 INFO L399 AbstractCegarLoop]: === Iteration 61 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:55,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:55,520 INFO L85 PathProgramCache]: Analyzing trace with hash -2010559742, now seen corresponding path program 1 times [2024-09-12 18:57:55,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:55,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277998500] [2024-09-12 18:57:55,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:55,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:55,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1699338425] [2024-09-12 18:57:55,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:55,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:55,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:55,530 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:55,531 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-09-12 18:57:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:55,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:57:55,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:55,797 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:57:55,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:00,078 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:58:00,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:00,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277998500] [2024-09-12 18:58:00,082 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:00,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699338425] [2024-09-12 18:58:00,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699338425] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:58:00,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:58:00,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-09-12 18:58:00,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23773654] [2024-09-12 18:58:00,083 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:00,083 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:58:00,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:00,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:58:00,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=182, Unknown=1, NotChecked=0, Total=240 [2024-09-12 18:58:00,083 INFO L87 Difference]: Start difference. First operand 1037 states and 1458 transitions. Second operand has 16 states, 15 states have (on average 7.4) internal successors, (111), 16 states have internal predecessors, (111), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:58:01,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:01,981 INFO L93 Difference]: Finished difference Result 1484 states and 2023 transitions. [2024-09-12 18:58:01,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:58:01,982 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.4) internal successors, (111), 16 states have internal predecessors, (111), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 97 [2024-09-12 18:58:01,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:01,985 INFO L225 Difference]: With dead ends: 1484 [2024-09-12 18:58:01,985 INFO L226 Difference]: Without dead ends: 1483 [2024-09-12 18:58:01,985 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=110, Invalid=351, Unknown=1, NotChecked=0, Total=462 [2024-09-12 18:58:01,986 INFO L434 NwaCegarLoop]: 159 mSDtfsCounter, 679 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:01,986 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1319 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:58:01,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-09-12 18:58:02,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1143. [2024-09-12 18:58:02,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 964 states have (on average 1.4149377593360997) internal successors, (1364), 1010 states have internal predecessors, (1364), 123 states have call successors, (123), 11 states have call predecessors, (123), 10 states have return successors, (121), 121 states have call predecessors, (121), 121 states have call successors, (121) [2024-09-12 18:58:02,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1608 transitions. [2024-09-12 18:58:02,529 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1608 transitions. Word has length 97 [2024-09-12 18:58:02,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:02,529 INFO L474 AbstractCegarLoop]: Abstraction has 1143 states and 1608 transitions. [2024-09-12 18:58:02,529 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.4) internal successors, (111), 16 states have internal predecessors, (111), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:58:02,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:02,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1608 transitions. [2024-09-12 18:58:02,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 18:58:02,530 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:02,530 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:02,542 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2024-09-12 18:58:02,734 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,52 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:02,734 INFO L399 AbstractCegarLoop]: === Iteration 62 === Targeting mainErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:02,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:02,735 INFO L85 PathProgramCache]: Analyzing trace with hash 861339928, now seen corresponding path program 1 times [2024-09-12 18:58:02,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:02,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798284762] [2024-09-12 18:58:02,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:02,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:02,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2065647321] [2024-09-12 18:58:02,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:02,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:02,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:02,744 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:58:02,749 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-09-12 18:58:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:02,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 18:58:02,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:03,185 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:58:03,185 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:07,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:07,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798284762] [2024-09-12 18:58:07,885 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:07,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065647321] [2024-09-12 18:58:07,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065647321] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:07,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:58:07,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:58:07,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930858862] [2024-09-12 18:58:07,886 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:07,886 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:58:07,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:07,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:58:07,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=149, Unknown=1, NotChecked=0, Total=182 [2024-09-12 18:58:07,887 INFO L87 Difference]: Start difference. First operand 1143 states and 1608 transitions. Second operand has 9 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:58:09,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:09,627 INFO L93 Difference]: Finished difference Result 1434 states and 1994 transitions. [2024-09-12 18:58:09,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:58:09,627 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 99 [2024-09-12 18:58:09,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:09,630 INFO L225 Difference]: With dead ends: 1434 [2024-09-12 18:58:09,630 INFO L226 Difference]: Without dead ends: 1432 [2024-09-12 18:58:09,631 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=48, Invalid=223, Unknown=1, NotChecked=0, Total=272 [2024-09-12 18:58:09,631 INFO L434 NwaCegarLoop]: 127 mSDtfsCounter, 290 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:09,631 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 641 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:58:09,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2024-09-12 18:58:10,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1147. [2024-09-12 18:58:10,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 968 states have (on average 1.4132231404958677) internal successors, (1368), 1014 states have internal predecessors, (1368), 123 states have call successors, (123), 11 states have call predecessors, (123), 10 states have return successors, (121), 121 states have call predecessors, (121), 121 states have call successors, (121) [2024-09-12 18:58:10,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1612 transitions. [2024-09-12 18:58:10,176 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1612 transitions. Word has length 99 [2024-09-12 18:58:10,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:10,176 INFO L474 AbstractCegarLoop]: Abstraction has 1147 states and 1612 transitions. [2024-09-12 18:58:10,177 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:58:10,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:10,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1612 transitions. [2024-09-12 18:58:10,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-09-12 18:58:10,177 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:10,177 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:10,192 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2024-09-12 18:58:10,378 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,53 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:10,378 INFO L399 AbstractCegarLoop]: === Iteration 63 === Targeting mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:10,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:10,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1028802984, now seen corresponding path program 1 times [2024-09-12 18:58:10,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:10,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699803097] [2024-09-12 18:58:10,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:10,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:10,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:10,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:10,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:10,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:58:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:10,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:58:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:10,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 18:58:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:10,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 18:58:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:10,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 18:58:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:10,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:58:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:10,512 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-09-12 18:58:10,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:10,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699803097] [2024-09-12 18:58:10,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699803097] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:10,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187049567] [2024-09-12 18:58:10,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:10,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:10,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:10,516 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:58:10,520 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-09-12 18:58:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:10,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:58:10,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:10,661 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-09-12 18:58:10,661 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:11,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187049567] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:11,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:58:11,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-09-12 18:58:11,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430979969] [2024-09-12 18:58:11,156 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:11,157 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:58:11,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:11,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:58:11,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:58:11,158 INFO L87 Difference]: Start difference. First operand 1147 states and 1612 transitions. Second operand has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 10 states have internal predecessors, (115), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:58:12,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:12,355 INFO L93 Difference]: Finished difference Result 1194 states and 1631 transitions. [2024-09-12 18:58:12,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:58:12,356 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 10 states have internal predecessors, (115), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 100 [2024-09-12 18:58:12,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:12,358 INFO L225 Difference]: With dead ends: 1194 [2024-09-12 18:58:12,358 INFO L226 Difference]: Without dead ends: 1193 [2024-09-12 18:58:12,359 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:58:12,359 INFO L434 NwaCegarLoop]: 179 mSDtfsCounter, 94 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:12,359 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1074 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:58:12,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2024-09-12 18:58:12,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1147. [2024-09-12 18:58:12,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 968 states have (on average 1.4111570247933884) internal successors, (1366), 1014 states have internal predecessors, (1366), 123 states have call successors, (123), 11 states have call predecessors, (123), 10 states have return successors, (121), 121 states have call predecessors, (121), 121 states have call successors, (121) [2024-09-12 18:58:12,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1610 transitions. [2024-09-12 18:58:12,957 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1610 transitions. Word has length 100 [2024-09-12 18:58:12,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:12,958 INFO L474 AbstractCegarLoop]: Abstraction has 1147 states and 1610 transitions. [2024-09-12 18:58:12,958 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 10 states have internal predecessors, (115), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:58:12,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:12,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1610 transitions. [2024-09-12 18:58:12,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-09-12 18:58:12,959 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:12,959 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:12,978 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2024-09-12 18:58:13,163 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,54 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:13,164 INFO L399 AbstractCegarLoop]: === Iteration 64 === Targeting mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:13,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:13,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1828121606, now seen corresponding path program 1 times [2024-09-12 18:58:13,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:13,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267718143] [2024-09-12 18:58:13,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:13,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:13,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [217135701] [2024-09-12 18:58:13,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:13,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:13,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:13,187 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:58:13,191 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-09-12 18:58:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:13,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:58:13,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:13,494 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:58:13,494 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:13,757 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:58:13,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:13,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267718143] [2024-09-12 18:58:13,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:13,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217135701] [2024-09-12 18:58:13,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217135701] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:58:13,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:58:13,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2024-09-12 18:58:13,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427288946] [2024-09-12 18:58:13,757 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:13,758 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:58:13,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:13,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:58:13,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:58:13,758 INFO L87 Difference]: Start difference. First operand 1147 states and 1610 transitions. Second operand has 18 states, 17 states have (on average 7.0) internal successors, (119), 18 states have internal predecessors, (119), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:58:17,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:17,502 INFO L93 Difference]: Finished difference Result 1529 states and 2028 transitions. [2024-09-12 18:58:17,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-12 18:58:17,502 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.0) internal successors, (119), 18 states have internal predecessors, (119), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 101 [2024-09-12 18:58:17,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:17,506 INFO L225 Difference]: With dead ends: 1529 [2024-09-12 18:58:17,506 INFO L226 Difference]: Without dead ends: 1528 [2024-09-12 18:58:17,507 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=209, Invalid=603, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:58:17,507 INFO L434 NwaCegarLoop]: 176 mSDtfsCounter, 1300 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 1505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:17,510 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1324 Valid, 1440 Invalid, 1505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-09-12 18:58:17,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2024-09-12 18:58:18,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1158. [2024-09-12 18:58:18,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 979 states have (on average 1.4126659856996935) internal successors, (1383), 1025 states have internal predecessors, (1383), 123 states have call successors, (123), 11 states have call predecessors, (123), 10 states have return successors, (121), 121 states have call predecessors, (121), 121 states have call successors, (121) [2024-09-12 18:58:18,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1627 transitions. [2024-09-12 18:58:18,071 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1627 transitions. Word has length 101 [2024-09-12 18:58:18,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:18,071 INFO L474 AbstractCegarLoop]: Abstraction has 1158 states and 1627 transitions. [2024-09-12 18:58:18,071 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.0) internal successors, (119), 18 states have internal predecessors, (119), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:58:18,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:18,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1627 transitions. [2024-09-12 18:58:18,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-09-12 18:58:18,072 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:18,072 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:18,084 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2024-09-12 18:58:18,272 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,55 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:18,272 INFO L399 AbstractCegarLoop]: === Iteration 65 === Targeting mainErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:18,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:18,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1181011014, now seen corresponding path program 1 times [2024-09-12 18:58:18,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:18,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798805454] [2024-09-12 18:58:18,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:18,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:18,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:18,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [931314929] [2024-09-12 18:58:18,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:18,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:18,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:18,293 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:58:18,316 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-09-12 18:58:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:18,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:58:18,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:18,905 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-09-12 18:58:18,905 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:27,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:27,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798805454] [2024-09-12 18:58:27,344 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:27,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931314929] [2024-09-12 18:58:27,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931314929] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:27,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:58:27,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:58:27,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744949806] [2024-09-12 18:58:27,345 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:27,345 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:58:27,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:27,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:58:27,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=210, Unknown=2, NotChecked=0, Total=272 [2024-09-12 18:58:27,345 INFO L87 Difference]: Start difference. First operand 1158 states and 1627 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:58:29,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:29,359 INFO L93 Difference]: Finished difference Result 1548 states and 2132 transitions. [2024-09-12 18:58:29,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:58:29,360 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 101 [2024-09-12 18:58:29,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:29,366 INFO L225 Difference]: With dead ends: 1548 [2024-09-12 18:58:29,370 INFO L226 Difference]: Without dead ends: 1546 [2024-09-12 18:58:29,370 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=125, Invalid=379, Unknown=2, NotChecked=0, Total=506 [2024-09-12 18:58:29,371 INFO L434 NwaCegarLoop]: 114 mSDtfsCounter, 368 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:29,371 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 817 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:58:29,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2024-09-12 18:58:29,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1172. [2024-09-12 18:58:29,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 992 states have (on average 1.407258064516129) internal successors, (1396), 1038 states have internal predecessors, (1396), 124 states have call successors, (124), 11 states have call predecessors, (124), 10 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-09-12 18:58:29,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1642 transitions. [2024-09-12 18:58:29,950 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1642 transitions. Word has length 101 [2024-09-12 18:58:29,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:29,950 INFO L474 AbstractCegarLoop]: Abstraction has 1172 states and 1642 transitions. [2024-09-12 18:58:29,950 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:58:29,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:29,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1642 transitions. [2024-09-12 18:58:29,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-09-12 18:58:29,951 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:29,951 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:29,963 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2024-09-12 18:58:30,151 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,56 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:30,152 INFO L399 AbstractCegarLoop]: === Iteration 66 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:30,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:30,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1412635360, now seen corresponding path program 1 times [2024-09-12 18:58:30,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:30,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442529134] [2024-09-12 18:58:30,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:30,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:30,186 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:30,187 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:30,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:30,189 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:58:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:30,189 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:58:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:30,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:58:30,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:30,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:58:30,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:30,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:58:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:30,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:58:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:30,195 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 18:58:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:30,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:58:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:30,197 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:58:30,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:30,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442529134] [2024-09-12 18:58:30,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442529134] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:30,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:30,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:58:30,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657743374] [2024-09-12 18:58:30,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:30,198 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:58:30,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:30,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:58:30,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:58:30,199 INFO L87 Difference]: Start difference. First operand 1172 states and 1642 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:58:30,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:30,965 INFO L93 Difference]: Finished difference Result 2183 states and 3085 transitions. [2024-09-12 18:58:30,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:58:30,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 103 [2024-09-12 18:58:30,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:30,972 INFO L225 Difference]: With dead ends: 2183 [2024-09-12 18:58:30,972 INFO L226 Difference]: Without dead ends: 1242 [2024-09-12 18:58:30,974 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 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 18:58:30,974 INFO L434 NwaCegarLoop]: 118 mSDtfsCounter, 19 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:30,974 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 430 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:58:30,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2024-09-12 18:58:31,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1206. [2024-09-12 18:58:31,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 1026 states have (on average 1.398635477582846) internal successors, (1435), 1072 states have internal predecessors, (1435), 124 states have call successors, (124), 11 states have call predecessors, (124), 10 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-09-12 18:58:31,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1681 transitions. [2024-09-12 18:58:31,617 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1681 transitions. Word has length 103 [2024-09-12 18:58:31,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:31,618 INFO L474 AbstractCegarLoop]: Abstraction has 1206 states and 1681 transitions. [2024-09-12 18:58:31,618 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:58:31,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:31,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1681 transitions. [2024-09-12 18:58:31,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-09-12 18:58:31,618 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:31,619 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:31,619 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-09-12 18:58:31,619 INFO L399 AbstractCegarLoop]: === Iteration 67 === Targeting mainErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:31,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:31,619 INFO L85 PathProgramCache]: Analyzing trace with hash 2043364431, now seen corresponding path program 1 times [2024-09-12 18:58:31,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:31,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147215617] [2024-09-12 18:58:31,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:31,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:31,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [666559968] [2024-09-12 18:58:31,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:31,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:31,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:31,628 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:58:31,630 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-09-12 18:58:31,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:31,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:58:31,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:32,315 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-09-12 18:58:32,315 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:37,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:37,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147215617] [2024-09-12 18:58:37,318 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:37,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666559968] [2024-09-12 18:58:37,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666559968] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:37,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:58:37,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:58:37,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744136002] [2024-09-12 18:58:37,318 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:37,318 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:58:37,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:37,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:58:37,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=215, Unknown=1, NotChecked=0, Total=272 [2024-09-12 18:58:37,319 INFO L87 Difference]: Start difference. First operand 1206 states and 1681 transitions. Second operand has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:58:39,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:39,028 INFO L93 Difference]: Finished difference Result 1446 states and 1993 transitions. [2024-09-12 18:58:39,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:58:39,028 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 102 [2024-09-12 18:58:39,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:39,037 INFO L225 Difference]: With dead ends: 1446 [2024-09-12 18:58:39,038 INFO L226 Difference]: Without dead ends: 1444 [2024-09-12 18:58:39,038 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=97, Invalid=322, Unknown=1, NotChecked=0, Total=420 [2024-09-12 18:58:39,039 INFO L434 NwaCegarLoop]: 122 mSDtfsCounter, 338 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:39,039 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 858 Invalid, 1129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:58:39,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2024-09-12 18:58:39,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1208. [2024-09-12 18:58:39,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 1028 states have (on average 1.3978599221789882) internal successors, (1437), 1074 states have internal predecessors, (1437), 124 states have call successors, (124), 11 states have call predecessors, (124), 10 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-09-12 18:58:39,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1683 transitions. [2024-09-12 18:58:39,660 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1683 transitions. Word has length 102 [2024-09-12 18:58:39,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:39,660 INFO L474 AbstractCegarLoop]: Abstraction has 1208 states and 1683 transitions. [2024-09-12 18:58:39,661 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:58:39,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:39,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1683 transitions. [2024-09-12 18:58:39,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-09-12 18:58:39,661 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:39,661 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:39,673 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2024-09-12 18:58:39,862 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2024-09-12 18:58:39,862 INFO L399 AbstractCegarLoop]: === Iteration 68 === Targeting mainErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:39,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:39,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1080211876, now seen corresponding path program 1 times [2024-09-12 18:58:39,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:39,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318238766] [2024-09-12 18:58:39,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:39,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:39,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1575087627] [2024-09-12 18:58:39,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:39,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:39,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:39,871 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:58:39,872 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-09-12 18:58:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:39,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-09-12 18:58:39,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:40,810 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:58:40,810 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:51,199 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:58:51,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:51,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318238766] [2024-09-12 18:58:51,200 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:51,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575087627] [2024-09-12 18:58:51,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575087627] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:58:51,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:58:51,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-09-12 18:58:51,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899601403] [2024-09-12 18:58:51,200 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:51,201 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 18:58:51,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:51,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 18:58:51,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:58:51,201 INFO L87 Difference]: Start difference. First operand 1208 states and 1683 transitions. Second operand has 22 states, 21 states have (on average 5.857142857142857) internal successors, (123), 22 states have internal predecessors, (123), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:59:10,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:59:23,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:59:29,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:59:29,160 INFO L93 Difference]: Finished difference Result 1473 states and 2020 transitions. [2024-09-12 18:59:29,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-12 18:59:29,160 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.857142857142857) internal successors, (123), 22 states have internal predecessors, (123), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 103 [2024-09-12 18:59:29,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:59:29,167 INFO L225 Difference]: With dead ends: 1473 [2024-09-12 18:59:29,167 INFO L226 Difference]: Without dead ends: 1471 [2024-09-12 18:59:29,167 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=489, Invalid=1863, Unknown=0, NotChecked=0, Total=2352 [2024-09-12 18:59:29,167 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 949 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 2613 mSolverCounterSat, 154 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 2768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 2613 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:59:29,168 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 739 Invalid, 2768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 2613 Invalid, 1 Unknown, 0 Unchecked, 29.1s Time] [2024-09-12 18:59:29,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2024-09-12 18:59:30,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1379. [2024-09-12 18:59:30,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1379 states, 1176 states have (on average 1.3928571428571428) internal successors, (1638), 1222 states have internal predecessors, (1638), 147 states have call successors, (147), 11 states have call predecessors, (147), 10 states have return successors, (145), 145 states have call predecessors, (145), 145 states have call successors, (145) [2024-09-12 18:59:30,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1930 transitions. [2024-09-12 18:59:30,402 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1930 transitions. Word has length 103 [2024-09-12 18:59:30,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:59:30,403 INFO L474 AbstractCegarLoop]: Abstraction has 1379 states and 1930 transitions. [2024-09-12 18:59:30,403 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.857142857142857) internal successors, (123), 22 states have internal predecessors, (123), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:59:30,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:30,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1930 transitions. [2024-09-12 18:59:30,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-09-12 18:59:30,404 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:59:30,404 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:59:30,416 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2024-09-12 18:59:30,604 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2024-09-12 18:59:30,604 INFO L399 AbstractCegarLoop]: === Iteration 69 === Targeting mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:59:30,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:30,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1385508874, now seen corresponding path program 1 times [2024-09-12 18:59:30,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:59:30,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201352630] [2024-09-12 18:59:30,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:30,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:59:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:30,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:59:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:30,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:59:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:30,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:59:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:30,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:59:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:30,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:59:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:30,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 18:59:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:30,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 18:59:30,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:30,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 18:59:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:30,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:59:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:30,687 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:59:30,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:59:30,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201352630] [2024-09-12 18:59:30,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201352630] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:59:30,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659617877] [2024-09-12 18:59:30,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:30,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:59:30,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:59:30,690 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:59:30,691 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-09-12 18:59:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:30,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:59:30,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:59:30,798 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:59:30,798 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:59:30,911 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:59:30,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659617877] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:59:30,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:59:30,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 8 [2024-09-12 18:59:30,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436778777] [2024-09-12 18:59:30,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:59:30,912 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:59:30,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:59:30,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:59:30,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:59:30,912 INFO L87 Difference]: Start difference. First operand 1379 states and 1930 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:59:32,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:59:32,695 INFO L93 Difference]: Finished difference Result 1969 states and 2738 transitions. [2024-09-12 18:59:32,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 18:59:32,696 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 104 [2024-09-12 18:59:32,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:59:32,699 INFO L225 Difference]: With dead ends: 1969 [2024-09-12 18:59:32,700 INFO L226 Difference]: Without dead ends: 1927 [2024-09-12 18:59:32,700 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 225 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:59:32,700 INFO L434 NwaCegarLoop]: 201 mSDtfsCounter, 599 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:59:32,700 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 1121 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:59:32,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1927 states. [2024-09-12 18:59:33,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1927 to 1414. [2024-09-12 18:59:33,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 1211 states have (on average 1.3922378199834846) internal successors, (1686), 1257 states have internal predecessors, (1686), 147 states have call successors, (147), 11 states have call predecessors, (147), 10 states have return successors, (145), 145 states have call predecessors, (145), 145 states have call successors, (145) [2024-09-12 18:59:33,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 1978 transitions. [2024-09-12 18:59:33,668 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 1978 transitions. Word has length 104 [2024-09-12 18:59:33,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:59:33,668 INFO L474 AbstractCegarLoop]: Abstraction has 1414 states and 1978 transitions. [2024-09-12 18:59:33,669 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:59:33,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:33,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 1978 transitions. [2024-09-12 18:59:33,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-09-12 18:59:33,669 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:59:33,669 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:59:33,681 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2024-09-12 18:59:33,870 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2024-09-12 18:59:33,870 INFO L399 AbstractCegarLoop]: === Iteration 70 === Targeting mainErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:59:33,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:33,870 INFO L85 PathProgramCache]: Analyzing trace with hash 873170417, now seen corresponding path program 1 times [2024-09-12 18:59:33,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:59:33,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504478795] [2024-09-12 18:59:33,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:33,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:59:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:59:33,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [993790] [2024-09-12 18:59:33,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:33,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:59:33,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:59:33,879 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:59:33,883 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-09-12 18:59:33,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:33,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-09-12 18:59:33,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:59:34,850 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:59:34,850 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:59:39,072 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:59:39,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:59:39,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504478795] [2024-09-12 18:59:39,073 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:59:39,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993790] [2024-09-12 18:59:39,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993790] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:59:39,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:59:39,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-09-12 18:59:39,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444573465] [2024-09-12 18:59:39,073 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:59:39,073 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 18:59:39,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:59:39,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 18:59:39,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:59:39,074 INFO L87 Difference]: Start difference. First operand 1414 states and 1978 transitions. Second operand has 22 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 22 states have internal predecessors, (125), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:59:44,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:00:06,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:00:06,044 INFO L93 Difference]: Finished difference Result 1503 states and 2063 transitions. [2024-09-12 19:00:06,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-12 19:00:06,044 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 22 states have internal predecessors, (125), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 104 [2024-09-12 19:00:06,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:00:06,048 INFO L225 Difference]: With dead ends: 1503 [2024-09-12 19:00:06,048 INFO L226 Difference]: Without dead ends: 1502 [2024-09-12 19:00:06,048 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=346, Invalid=1376, Unknown=0, NotChecked=0, Total=1722 [2024-09-12 19:00:06,048 INFO L434 NwaCegarLoop]: 89 mSDtfsCounter, 904 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 142 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 2378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:00:06,048 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 682 Invalid, 2378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 2235 Invalid, 1 Unknown, 0 Unchecked, 23.7s Time] [2024-09-12 19:00:06,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2024-09-12 19:00:07,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1415. [2024-09-12 19:00:07,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1212 states have (on average 1.391914191419142) internal successors, (1687), 1258 states have internal predecessors, (1687), 147 states have call successors, (147), 11 states have call predecessors, (147), 10 states have return successors, (145), 145 states have call predecessors, (145), 145 states have call successors, (145) [2024-09-12 19:00:07,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1979 transitions. [2024-09-12 19:00:07,205 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1979 transitions. Word has length 104 [2024-09-12 19:00:07,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:00:07,205 INFO L474 AbstractCegarLoop]: Abstraction has 1415 states and 1979 transitions. [2024-09-12 19:00:07,205 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 22 states have internal predecessors, (125), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 19:00:07,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:00:07,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1979 transitions. [2024-09-12 19:00:07,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-09-12 19:00:07,206 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:00:07,206 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:00:07,218 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2024-09-12 19:00:07,407 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-09-12 19:00:07,407 INFO L399 AbstractCegarLoop]: === Iteration 71 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:00:07,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:00:07,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1770690155, now seen corresponding path program 1 times [2024-09-12 19:00:07,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:00:07,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066316666] [2024-09-12 19:00:07,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:00:07,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:00:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:00:07,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1813155305] [2024-09-12 19:00:07,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:00:07,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:00:07,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:00:07,418 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:00:07,420 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-09-12 19:00:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:00:07,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-09-12 19:00:07,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:00:08,423 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 19:00:08,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:00:10,313 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 19:00:10,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:00:10,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066316666] [2024-09-12 19:00:10,313 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:00:10,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813155305] [2024-09-12 19:00:10,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813155305] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:00:10,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:00:10,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22 [2024-09-12 19:00:10,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57559347] [2024-09-12 19:00:10,314 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:00:10,314 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 19:00:10,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:00:10,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 19:00:10,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2024-09-12 19:00:10,315 INFO L87 Difference]: Start difference. First operand 1415 states and 1979 transitions. Second operand has 22 states, 22 states have (on average 5.818181818181818) internal successors, (128), 21 states have internal predecessors, (128), 5 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13)