./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound50.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_valuebound50.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 05dbf98a57cbdf117305bcdd9c3dde8d1b2284b890adec5d1f5924f0e5e4bbbb --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 18:56:03,130 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:56:03,202 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:56:03,208 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:56:03,209 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:56:03,235 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:56:03,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:56:03,236 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:56:03,237 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:56:03,237 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:56:03,237 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:56:03,238 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:56:03,238 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:56:03,239 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:56:03,239 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:56:03,239 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:56:03,240 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:56:03,240 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:56:03,240 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:56:03,241 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:56:03,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:56:03,243 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:56:03,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:56:03,243 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:56:03,243 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:56:03,244 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:56:03,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:56:03,244 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:56:03,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:56:03,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:56:03,245 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:56:03,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:56:03,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:56:03,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:56:03,246 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:56:03,247 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:56:03,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:56:03,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:56:03,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:56:03,248 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:56:03,248 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:56:03,250 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:56:03,250 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05dbf98a57cbdf117305bcdd9c3dde8d1b2284b890adec5d1f5924f0e5e4bbbb Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:56:03,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:56:03,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:56:03,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:56:03,609 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:56:03,609 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:56:03,610 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound50.c [2024-09-12 18:56:05,166 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:56:05,360 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:56:05,362 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound50.c [2024-09-12 18:56:05,373 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/2bc395d32/fd22fbe75f2d47e2bdab73d2e0376c19/FLAG210578382 [2024-09-12 18:56:05,754 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/2bc395d32/fd22fbe75f2d47e2bdab73d2e0376c19 [2024-09-12 18:56:05,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:56:05,760 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:56:05,761 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:56:05,761 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:56:05,766 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:56:05,767 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:56:05" (1/1) ... [2024-09-12 18:56:05,768 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@590a4fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:05, skipping insertion in model container [2024-09-12 18:56:05,768 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:56:05" (1/1) ... [2024-09-12 18:56:05,784 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:56:05,922 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_valuebound50.c[490,503] [2024-09-12 18:56:05,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:56:05,970 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:56:05,981 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_valuebound50.c[490,503] [2024-09-12 18:56:05,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:56:06,015 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:56:06,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:06 WrapperNode [2024-09-12 18:56:06,016 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:56:06,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:56:06,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:56:06,018 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:56:06,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:06" (1/1) ... [2024-09-12 18:56:06,036 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:06" (1/1) ... [2024-09-12 18:56:06,053 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:56:06,054 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:56:06,055 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:56:06,055 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:56:06,055 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:56:06,063 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:06" (1/1) ... [2024-09-12 18:56:06,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:06" (1/1) ... [2024-09-12 18:56:06,065 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:06" (1/1) ... [2024-09-12 18:56:06,076 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 18:56:06,077 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:06" (1/1) ... [2024-09-12 18:56:06,077 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:06" (1/1) ... [2024-09-12 18:56:06,083 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:06" (1/1) ... [2024-09-12 18:56:06,088 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:06" (1/1) ... [2024-09-12 18:56:06,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:06" (1/1) ... [2024-09-12 18:56:06,090 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:06" (1/1) ... [2024-09-12 18:56:06,092 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:56:06,092 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:56:06,092 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:56:06,093 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:56:06,093 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:06" (1/1) ... [2024-09-12 18:56:06,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:56:06,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:06,122 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 18:56:06,125 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 18:56:06,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:56:06,169 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 18:56:06,170 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 18:56:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:56:06,170 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:56:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:56:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:56:06,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:56:06,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:56:06,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:56:06,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:56:06,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:56:06,227 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:56:06,228 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:56:06,924 INFO L? ?]: Removed 131 outVars from TransFormulas that were not future-live. [2024-09-12 18:56:06,924 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:56:06,958 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:56:06,959 INFO L318 CfgBuilder]: Removed 3 assume(true) statements. [2024-09-12 18:56:06,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:56:06 BoogieIcfgContainer [2024-09-12 18:56:06,960 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:56:06,962 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:56:06,963 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:56:06,966 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:56:06,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:56:05" (1/3) ... [2024-09-12 18:56:06,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b79a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:56:06, skipping insertion in model container [2024-09-12 18:56:06,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:06" (2/3) ... [2024-09-12 18:56:06,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b79a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:56:06, skipping insertion in model container [2024-09-12 18:56:06,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:56:06" (3/3) ... [2024-09-12 18:56:06,970 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd3-ll_valuebound50.c [2024-09-12 18:56:06,986 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:56:06,986 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 51 error locations. [2024-09-12 18:56:07,052 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:56:07,060 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;@6f41bb7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:56:07,061 INFO L337 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-09-12 18:56:07,065 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 18:56:07,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 18:56:07,080 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:07,081 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 18:56:07,081 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:07,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:07,088 INFO L85 PathProgramCache]: Analyzing trace with hash 150372857, now seen corresponding path program 1 times [2024-09-12 18:56:07,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:07,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299081193] [2024-09-12 18:56:07,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:07,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:07,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:07,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:07,250 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:07,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:56:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:07,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:56:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:07,266 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 18:56:07,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:07,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299081193] [2024-09-12 18:56:07,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299081193] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:07,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:07,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:56:07,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125859690] [2024-09-12 18:56:07,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:07,273 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 18:56:07,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:07,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 18:56:07,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:56:07,296 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 18:56:07,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:07,366 INFO L93 Difference]: Finished difference Result 268 states and 310 transitions. [2024-09-12 18:56:07,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 18:56:07,372 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 18:56:07,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:07,381 INFO L225 Difference]: With dead ends: 268 [2024-09-12 18:56:07,381 INFO L226 Difference]: Without dead ends: 133 [2024-09-12 18:56:07,385 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 18:56:07,391 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 18:56:07,392 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 18:56:07,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-09-12 18:56:07,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-09-12 18:56:07,431 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 18:56:07,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 142 transitions. [2024-09-12 18:56:07,436 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 142 transitions. Word has length 29 [2024-09-12 18:56:07,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:07,436 INFO L474 AbstractCegarLoop]: Abstraction has 133 states and 142 transitions. [2024-09-12 18:56:07,437 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 18:56:07,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:07,438 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 142 transitions. [2024-09-12 18:56:07,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-09-12 18:56:07,439 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:07,439 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 18:56:07,440 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:56:07,440 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:07,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:07,440 INFO L85 PathProgramCache]: Analyzing trace with hash -994139042, now seen corresponding path program 1 times [2024-09-12 18:56:07,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:07,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544328982] [2024-09-12 18:56:07,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:07,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:07,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:07,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:07,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:07,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:07,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:56:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:07,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:56:07,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:07,732 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 18:56:07,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:07,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544328982] [2024-09-12 18:56:07,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544328982] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:07,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:07,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:56:07,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096653286] [2024-09-12 18:56:07,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:07,734 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:56:07,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:07,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:56:07,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:56:07,737 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 18:56:08,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:08,102 INFO L93 Difference]: Finished difference Result 229 states and 250 transitions. [2024-09-12 18:56:08,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:56:08,102 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 18:56:08,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:08,105 INFO L225 Difference]: With dead ends: 229 [2024-09-12 18:56:08,105 INFO L226 Difference]: Without dead ends: 194 [2024-09-12 18:56:08,105 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 18:56:08,109 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 209 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:08,110 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 354 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:56:08,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-09-12 18:56:08,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 135. [2024-09-12 18:56:08,143 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 18:56:08,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 144 transitions. [2024-09-12 18:56:08,150 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 144 transitions. Word has length 30 [2024-09-12 18:56:08,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:08,150 INFO L474 AbstractCegarLoop]: Abstraction has 135 states and 144 transitions. [2024-09-12 18:56:08,150 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 18:56:08,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:08,151 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 144 transitions. [2024-09-12 18:56:08,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-09-12 18:56:08,152 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:08,154 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 18:56:08,155 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:56:08,155 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:08,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:08,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1697009532, now seen corresponding path program 1 times [2024-09-12 18:56:08,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:08,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280386688] [2024-09-12 18:56:08,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:08,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:08,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [755645278] [2024-09-12 18:56:08,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:08,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:08,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:08,180 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 18:56:08,183 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 18:56:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:08,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:56:08,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:08,276 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 18:56:08,277 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:08,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:08,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280386688] [2024-09-12 18:56:08,279 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:08,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755645278] [2024-09-12 18:56:08,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755645278] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:08,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:08,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:56:08,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183503571] [2024-09-12 18:56:08,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:08,282 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:56:08,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:08,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:56:08,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:56:08,283 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 18:56:08,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:08,496 INFO L93 Difference]: Finished difference Result 204 states and 223 transitions. [2024-09-12 18:56:08,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:56:08,497 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 18:56:08,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:08,501 INFO L225 Difference]: With dead ends: 204 [2024-09-12 18:56:08,503 INFO L226 Difference]: Without dead ends: 200 [2024-09-12 18:56:08,504 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 18:56:08,505 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 18:56:08,505 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 18:56:08,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-09-12 18:56:08,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 174. [2024-09-12 18:56:08,540 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 18:56:08,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 215 transitions. [2024-09-12 18:56:08,545 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 215 transitions. Word has length 33 [2024-09-12 18:56:08,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:08,545 INFO L474 AbstractCegarLoop]: Abstraction has 174 states and 215 transitions. [2024-09-12 18:56:08,545 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 18:56:08,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:08,546 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 215 transitions. [2024-09-12 18:56:08,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-09-12 18:56:08,546 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:08,546 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 18:56:08,561 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 18:56:08,747 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 18:56:08,747 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:08,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:08,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1697009150, now seen corresponding path program 1 times [2024-09-12 18:56:08,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:08,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041034662] [2024-09-12 18:56:08,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:08,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:08,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1958394664] [2024-09-12 18:56:08,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:08,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:08,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:08,765 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 18:56:08,767 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 18:56:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:08,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:56:08,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:08,834 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 18:56:08,834 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:08,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:08,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041034662] [2024-09-12 18:56:08,835 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:08,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958394664] [2024-09-12 18:56:08,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958394664] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:08,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:08,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:56:08,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86073877] [2024-09-12 18:56:08,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:08,838 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:56:08,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:08,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:56:08,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:56:08,839 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 18:56:09,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:09,042 INFO L93 Difference]: Finished difference Result 202 states and 219 transitions. [2024-09-12 18:56:09,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:56:09,042 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 18:56:09,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:09,044 INFO L225 Difference]: With dead ends: 202 [2024-09-12 18:56:09,044 INFO L226 Difference]: Without dead ends: 200 [2024-09-12 18:56:09,045 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 18:56:09,046 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 18:56:09,046 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 18:56:09,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-09-12 18:56:09,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 174. [2024-09-12 18:56:09,072 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 18:56:09,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 213 transitions. [2024-09-12 18:56:09,073 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 213 transitions. Word has length 33 [2024-09-12 18:56:09,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:09,074 INFO L474 AbstractCegarLoop]: Abstraction has 174 states and 213 transitions. [2024-09-12 18:56:09,074 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 18:56:09,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:09,075 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 213 transitions. [2024-09-12 18:56:09,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 18:56:09,075 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:09,075 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 18:56:09,092 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 18:56:09,276 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 18:56:09,277 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:09,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:09,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1261407042, now seen corresponding path program 1 times [2024-09-12 18:56:09,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:09,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578998101] [2024-09-12 18:56:09,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:09,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:09,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:09,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:09,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:09,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:56:09,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:09,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:56:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:09,428 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 18:56:09,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:09,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578998101] [2024-09-12 18:56:09,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578998101] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:09,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:09,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:56:09,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290971487] [2024-09-12 18:56:09,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:09,430 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:56:09,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:09,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:56:09,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:56:09,432 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 18:56:10,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:10,028 INFO L93 Difference]: Finished difference Result 197 states and 217 transitions. [2024-09-12 18:56:10,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:56:10,029 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 18:56:10,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:10,031 INFO L225 Difference]: With dead ends: 197 [2024-09-12 18:56:10,031 INFO L226 Difference]: Without dead ends: 196 [2024-09-12 18:56:10,031 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 18:56:10,032 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 18:56:10,033 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 18:56:10,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-09-12 18:56:10,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 175. [2024-09-12 18:56:10,071 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 18:56:10,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 214 transitions. [2024-09-12 18:56:10,072 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 214 transitions. Word has length 35 [2024-09-12 18:56:10,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:10,073 INFO L474 AbstractCegarLoop]: Abstraction has 175 states and 214 transitions. [2024-09-12 18:56:10,073 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 18:56:10,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:10,073 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 214 transitions. [2024-09-12 18:56:10,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 18:56:10,074 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:10,074 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 18:56:10,074 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 18:56:10,076 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:10,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:10,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1261776448, now seen corresponding path program 1 times [2024-09-12 18:56:10,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:10,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393788981] [2024-09-12 18:56:10,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:10,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:10,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [914996438] [2024-09-12 18:56:10,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:10,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:10,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:10,103 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 18:56:10,104 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 18:56:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:10,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:56:10,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:10,219 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 18:56:10,219 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:10,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:10,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393788981] [2024-09-12 18:56:10,220 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:10,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914996438] [2024-09-12 18:56:10,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914996438] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:10,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:10,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:56:10,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440564264] [2024-09-12 18:56:10,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:10,221 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:56:10,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:10,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:56:10,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:56:10,222 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 18:56:10,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:10,648 INFO L93 Difference]: Finished difference Result 194 states and 214 transitions. [2024-09-12 18:56:10,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:56:10,651 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 18:56:10,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:10,653 INFO L225 Difference]: With dead ends: 194 [2024-09-12 18:56:10,653 INFO L226 Difference]: Without dead ends: 193 [2024-09-12 18:56:10,654 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 18:56:10,654 INFO L434 NwaCegarLoop]: 103 mSDtfsCounter, 140 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:10,656 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 217 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:56:10,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-09-12 18:56:10,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 175. [2024-09-12 18:56:10,691 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 18:56:10,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 213 transitions. [2024-09-12 18:56:10,694 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 213 transitions. Word has length 35 [2024-09-12 18:56:10,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:10,695 INFO L474 AbstractCegarLoop]: Abstraction has 175 states and 213 transitions. [2024-09-12 18:56:10,695 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 18:56:10,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:10,695 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 213 transitions. [2024-09-12 18:56:10,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 18:56:10,698 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:10,698 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 18:56:10,714 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 18:56:10,902 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 18:56:10,903 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:10,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:10,903 INFO L85 PathProgramCache]: Analyzing trace with hash -448912472, now seen corresponding path program 1 times [2024-09-12 18:56:10,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:10,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297146785] [2024-09-12 18:56:10,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:10,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:10,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1874377407] [2024-09-12 18:56:10,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:10,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:10,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:10,924 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 18:56:10,925 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 18:56:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:10,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:56:10,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:11,023 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 18:56:11,024 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:11,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:11,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297146785] [2024-09-12 18:56:11,024 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:11,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874377407] [2024-09-12 18:56:11,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874377407] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:11,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:11,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:56:11,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904479130] [2024-09-12 18:56:11,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:11,026 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:56:11,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:11,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:56:11,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:56:11,027 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 18:56:11,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:11,421 INFO L93 Difference]: Finished difference Result 195 states and 215 transitions. [2024-09-12 18:56:11,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:56:11,425 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 18:56:11,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:11,427 INFO L225 Difference]: With dead ends: 195 [2024-09-12 18:56:11,427 INFO L226 Difference]: Without dead ends: 194 [2024-09-12 18:56:11,427 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 18:56:11,428 INFO L434 NwaCegarLoop]: 123 mSDtfsCounter, 53 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:11,428 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 308 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:56:11,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-09-12 18:56:11,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 176. [2024-09-12 18:56:11,448 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 18:56:11,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 214 transitions. [2024-09-12 18:56:11,450 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 214 transitions. Word has length 36 [2024-09-12 18:56:11,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:11,450 INFO L474 AbstractCegarLoop]: Abstraction has 176 states and 214 transitions. [2024-09-12 18:56:11,450 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 18:56:11,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:11,451 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 214 transitions. [2024-09-12 18:56:11,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 18:56:11,454 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:11,454 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 18:56:11,471 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 18:56:11,655 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 18:56:11,655 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:11,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:11,656 INFO L85 PathProgramCache]: Analyzing trace with hash -460364130, now seen corresponding path program 1 times [2024-09-12 18:56:11,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:11,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922114011] [2024-09-12 18:56:11,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:11,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:11,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [920939568] [2024-09-12 18:56:11,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:11,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:11,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:11,669 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 18:56:11,671 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 18:56:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:11,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:56:11,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:11,768 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 18:56:11,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:11,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:11,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922114011] [2024-09-12 18:56:11,769 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:11,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920939568] [2024-09-12 18:56:11,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920939568] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:11,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:11,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:56:11,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153649420] [2024-09-12 18:56:11,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:11,770 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:56:11,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:11,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:56:11,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:56:11,771 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 18:56:11,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:11,941 INFO L93 Difference]: Finished difference Result 195 states and 214 transitions. [2024-09-12 18:56:11,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:56:11,941 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 18:56:11,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:11,943 INFO L225 Difference]: With dead ends: 195 [2024-09-12 18:56:11,944 INFO L226 Difference]: Without dead ends: 194 [2024-09-12 18:56:11,944 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 18:56:11,944 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 18:56:11,945 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 18:56:11,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-09-12 18:56:11,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 176. [2024-09-12 18:56:11,967 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 18:56:11,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 213 transitions. [2024-09-12 18:56:11,969 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 213 transitions. Word has length 36 [2024-09-12 18:56:11,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:11,969 INFO L474 AbstractCegarLoop]: Abstraction has 176 states and 213 transitions. [2024-09-12 18:56:11,969 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 18:56:11,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:11,970 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 213 transitions. [2024-09-12 18:56:11,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 18:56:11,971 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:11,971 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 18:56:11,988 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 18:56:12,172 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 18:56:12,172 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:12,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:12,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1031384576, now seen corresponding path program 1 times [2024-09-12 18:56:12,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:12,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260452205] [2024-09-12 18:56:12,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:12,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:12,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1634633959] [2024-09-12 18:56:12,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:12,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:12,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:12,187 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 18:56:12,189 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 18:56:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:12,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:56:12,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:12,257 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 18:56:12,257 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:12,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:12,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260452205] [2024-09-12 18:56:12,257 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:12,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634633959] [2024-09-12 18:56:12,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634633959] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:12,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:12,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:56:12,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582386765] [2024-09-12 18:56:12,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:12,258 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:56:12,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:12,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:56:12,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:56:12,259 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 18:56:12,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:12,426 INFO L93 Difference]: Finished difference Result 290 states and 369 transitions. [2024-09-12 18:56:12,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:56:12,427 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 18:56:12,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:12,429 INFO L225 Difference]: With dead ends: 290 [2024-09-12 18:56:12,430 INFO L226 Difference]: Without dead ends: 284 [2024-09-12 18:56:12,430 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 18:56:12,430 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 18:56:12,431 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 18:56:12,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-09-12 18:56:12,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 252. [2024-09-12 18:56:12,469 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 18:56:12,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 341 transitions. [2024-09-12 18:56:12,471 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 341 transitions. Word has length 37 [2024-09-12 18:56:12,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:12,471 INFO L474 AbstractCegarLoop]: Abstraction has 252 states and 341 transitions. [2024-09-12 18:56:12,472 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 18:56:12,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:12,472 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 341 transitions. [2024-09-12 18:56:12,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 18:56:12,473 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:12,473 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 18:56:12,489 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 18:56:12,677 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 18:56:12,678 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:12,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:12,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1386386046, now seen corresponding path program 1 times [2024-09-12 18:56:12,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:12,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215346837] [2024-09-12 18:56:12,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:12,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:12,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1374428403] [2024-09-12 18:56:12,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:12,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:12,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:12,691 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 18:56:12,693 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 18:56:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:12,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:56:12,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:12,765 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 18:56:12,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:12,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:12,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215346837] [2024-09-12 18:56:12,765 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:12,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374428403] [2024-09-12 18:56:12,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374428403] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:12,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:12,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:56:12,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313366464] [2024-09-12 18:56:12,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:12,767 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:56:12,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:12,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:56:12,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:56:12,768 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 18:56:13,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:13,285 INFO L93 Difference]: Finished difference Result 277 states and 345 transitions. [2024-09-12 18:56:13,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:56:13,285 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 18:56:13,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:13,287 INFO L225 Difference]: With dead ends: 277 [2024-09-12 18:56:13,287 INFO L226 Difference]: Without dead ends: 276 [2024-09-12 18:56:13,288 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 18:56:13,288 INFO L434 NwaCegarLoop]: 132 mSDtfsCounter, 57 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:13,288 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 343 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:56:13,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-09-12 18:56:13,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 252. [2024-09-12 18:56:13,332 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 18:56:13,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 339 transitions. [2024-09-12 18:56:13,334 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 339 transitions. Word has length 37 [2024-09-12 18:56:13,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:13,335 INFO L474 AbstractCegarLoop]: Abstraction has 252 states and 339 transitions. [2024-09-12 18:56:13,335 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 18:56:13,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:13,336 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 339 transitions. [2024-09-12 18:56:13,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 18:56:13,336 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:13,336 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 18:56:13,354 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:13,540 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 18:56:13,541 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:13,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:13,542 INFO L85 PathProgramCache]: Analyzing trace with hash -28294368, now seen corresponding path program 1 times [2024-09-12 18:56:13,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:13,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506301072] [2024-09-12 18:56:13,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:13,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:13,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1088537842] [2024-09-12 18:56:13,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:13,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:13,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:13,565 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 18:56:13,576 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 18:56:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:13,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:56:13,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:13,645 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 18:56:13,645 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:13,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:13,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506301072] [2024-09-12 18:56:13,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:13,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088537842] [2024-09-12 18:56:13,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088537842] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:13,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:13,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:56:13,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684905628] [2024-09-12 18:56:13,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:13,646 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:56:13,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:13,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:56:13,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:56:13,646 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 18:56:14,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:14,016 INFO L93 Difference]: Finished difference Result 278 states and 344 transitions. [2024-09-12 18:56:14,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:56:14,017 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 18:56:14,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:14,019 INFO L225 Difference]: With dead ends: 278 [2024-09-12 18:56:14,019 INFO L226 Difference]: Without dead ends: 277 [2024-09-12 18:56:14,019 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 18:56:14,020 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 18:56:14,020 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 18:56:14,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-09-12 18:56:14,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 252. [2024-09-12 18:56:14,053 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 18:56:14,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 337 transitions. [2024-09-12 18:56:14,055 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 337 transitions. Word has length 38 [2024-09-12 18:56:14,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:14,056 INFO L474 AbstractCegarLoop]: Abstraction has 252 states and 337 transitions. [2024-09-12 18:56:14,056 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 18:56:14,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:14,056 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 337 transitions. [2024-09-12 18:56:14,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 18:56:14,057 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:14,057 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 18:56:14,073 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:14,260 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 18:56:14,261 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:14,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:14,262 INFO L85 PathProgramCache]: Analyzing trace with hash 976873282, now seen corresponding path program 1 times [2024-09-12 18:56:14,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:14,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682891519] [2024-09-12 18:56:14,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:14,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:14,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:14,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:14,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:14,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:56:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:14,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:56:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:14,398 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:56:14,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:14,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682891519] [2024-09-12 18:56:14,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682891519] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:14,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:14,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:56:14,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990220867] [2024-09-12 18:56:14,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:14,399 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:56:14,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:14,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:56:14,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:56:14,400 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 18:56:15,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:15,001 INFO L93 Difference]: Finished difference Result 281 states and 347 transitions. [2024-09-12 18:56:15,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:56:15,001 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 18:56:15,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:15,003 INFO L225 Difference]: With dead ends: 281 [2024-09-12 18:56:15,003 INFO L226 Difference]: Without dead ends: 280 [2024-09-12 18:56:15,003 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 18:56:15,004 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, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:15,004 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 465 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:56:15,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-09-12 18:56:15,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 257. [2024-09-12 18:56:15,036 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 18:56:15,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 344 transitions. [2024-09-12 18:56:15,038 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 344 transitions. Word has length 39 [2024-09-12 18:56:15,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:15,039 INFO L474 AbstractCegarLoop]: Abstraction has 257 states and 344 transitions. [2024-09-12 18:56:15,039 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 18:56:15,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:15,039 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 344 transitions. [2024-09-12 18:56:15,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 18:56:15,040 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:15,040 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 18:56:15,040 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-09-12 18:56:15,040 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:15,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:15,041 INFO L85 PathProgramCache]: Analyzing trace with hash 218300844, now seen corresponding path program 1 times [2024-09-12 18:56:15,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:15,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822042653] [2024-09-12 18:56:15,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:15,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:15,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1452988312] [2024-09-12 18:56:15,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:15,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:15,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:15,053 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 18:56:15,055 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 18:56:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:15,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:56:15,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:15,156 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 18:56:15,156 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:15,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:15,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822042653] [2024-09-12 18:56:15,156 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:15,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452988312] [2024-09-12 18:56:15,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452988312] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:15,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:15,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:56:15,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563011503] [2024-09-12 18:56:15,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:15,157 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:56:15,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:15,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:56:15,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:56:15,158 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 18:56:15,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:15,547 INFO L93 Difference]: Finished difference Result 298 states and 355 transitions. [2024-09-12 18:56:15,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:56:15,548 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 18:56:15,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:15,550 INFO L225 Difference]: With dead ends: 298 [2024-09-12 18:56:15,550 INFO L226 Difference]: Without dead ends: 297 [2024-09-12 18:56:15,550 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 18:56:15,551 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 18:56:15,551 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 18:56:15,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-09-12 18:56:15,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 259. [2024-09-12 18:56:15,596 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 18:56:15,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 346 transitions. [2024-09-12 18:56:15,598 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 346 transitions. Word has length 40 [2024-09-12 18:56:15,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:15,598 INFO L474 AbstractCegarLoop]: Abstraction has 259 states and 346 transitions. [2024-09-12 18:56:15,598 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 18:56:15,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:15,599 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 346 transitions. [2024-09-12 18:56:15,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 18:56:15,600 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:15,600 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 18:56:15,618 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 18:56:15,804 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 18:56:15,805 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 18:56:15,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:15,805 INFO L85 PathProgramCache]: Analyzing trace with hash 145118284, now seen corresponding path program 1 times [2024-09-12 18:56:15,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:15,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649566222] [2024-09-12 18:56:15,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:15,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:15,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [606229705] [2024-09-12 18:56:15,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:15,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:15,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:15,821 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 18:56:15,824 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 18:56:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:15,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:56:15,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:15,954 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 18:56:15,955 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:15,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:15,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649566222] [2024-09-12 18:56:15,955 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:15,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606229705] [2024-09-12 18:56:15,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606229705] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:15,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:15,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:56:15,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023908944] [2024-09-12 18:56:15,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:15,956 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:56:15,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:15,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:56:15,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:56:15,958 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 18:56:16,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:16,278 INFO L93 Difference]: Finished difference Result 283 states and 351 transitions. [2024-09-12 18:56:16,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:56:16,279 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 18:56:16,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:16,281 INFO L225 Difference]: With dead ends: 283 [2024-09-12 18:56:16,281 INFO L226 Difference]: Without dead ends: 281 [2024-09-12 18:56:16,281 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 18:56:16,282 INFO L434 NwaCegarLoop]: 124 mSDtfsCounter, 46 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 18:56:16,282 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 18:56:16,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-09-12 18:56:16,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 263. [2024-09-12 18:56:16,320 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 18:56:16,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 349 transitions. [2024-09-12 18:56:16,322 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 349 transitions. Word has length 42 [2024-09-12 18:56:16,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:16,323 INFO L474 AbstractCegarLoop]: Abstraction has 263 states and 349 transitions. [2024-09-12 18:56:16,323 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 18:56:16,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:16,323 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 349 transitions. [2024-09-12 18:56:16,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 18:56:16,324 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:16,324 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 18:56:16,340 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 18:56:16,524 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 18:56:16,525 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:16,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:16,525 INFO L85 PathProgramCache]: Analyzing trace with hash 820015268, now seen corresponding path program 1 times [2024-09-12 18:56:16,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:16,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833754761] [2024-09-12 18:56:16,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:16,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:16,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:16,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:16,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:16,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:56:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:16,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:56:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:16,655 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 18:56:16,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:16,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833754761] [2024-09-12 18:56:16,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833754761] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:16,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443550941] [2024-09-12 18:56:16,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:16,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:16,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:16,658 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 18:56:16,659 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 18:56:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:16,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:56:16,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:16,732 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 18:56:16,732 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:16,816 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 18:56:16,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443550941] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:56:16,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:56:16,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 9 [2024-09-12 18:56:16,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102013120] [2024-09-12 18:56:16,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:16,817 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:56:16,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:16,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:56:16,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:56:16,818 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 18:56:17,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:17,523 INFO L93 Difference]: Finished difference Result 574 states and 717 transitions. [2024-09-12 18:56:17,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:56:17,524 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 18:56:17,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:17,527 INFO L225 Difference]: With dead ends: 574 [2024-09-12 18:56:17,527 INFO L226 Difference]: Without dead ends: 539 [2024-09-12 18:56:17,528 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 18:56:17,528 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 18:56:17,529 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 18:56:17,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-09-12 18:56:17,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 355. [2024-09-12 18:56:17,596 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 18:56:17,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 517 transitions. [2024-09-12 18:56:17,598 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 517 transitions. Word has length 43 [2024-09-12 18:56:17,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:17,599 INFO L474 AbstractCegarLoop]: Abstraction has 355 states and 517 transitions. [2024-09-12 18:56:17,599 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 18:56:17,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:17,599 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 517 transitions. [2024-09-12 18:56:17,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 18:56:17,600 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:17,600 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 18:56:17,617 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 18:56:17,804 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 18:56:17,805 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:17,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:17,805 INFO L85 PathProgramCache]: Analyzing trace with hash -222864919, now seen corresponding path program 1 times [2024-09-12 18:56:17,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:17,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468263036] [2024-09-12 18:56:17,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:17,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:17,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1978574214] [2024-09-12 18:56:17,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:17,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:17,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:17,817 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 18:56:17,826 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 18:56:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:17,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:56:17,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:17,928 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 18:56:17,929 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:17,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:17,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468263036] [2024-09-12 18:56:17,929 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:17,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978574214] [2024-09-12 18:56:17,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978574214] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:17,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:17,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:56:17,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267454640] [2024-09-12 18:56:17,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:17,930 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:56:17,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:17,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:56:17,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:56:17,931 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 18:56:18,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:18,303 INFO L93 Difference]: Finished difference Result 373 states and 519 transitions. [2024-09-12 18:56:18,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:56:18,303 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 18:56:18,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:18,306 INFO L225 Difference]: With dead ends: 373 [2024-09-12 18:56:18,306 INFO L226 Difference]: Without dead ends: 372 [2024-09-12 18:56:18,307 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 18:56:18,307 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 191 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:18,307 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 191 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:56:18,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-09-12 18:56:18,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 355. [2024-09-12 18:56:18,367 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 18:56:18,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 515 transitions. [2024-09-12 18:56:18,371 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 515 transitions. Word has length 46 [2024-09-12 18:56:18,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:18,372 INFO L474 AbstractCegarLoop]: Abstraction has 355 states and 515 transitions. [2024-09-12 18:56:18,372 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 18:56:18,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:18,372 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 515 transitions. [2024-09-12 18:56:18,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 18:56:18,373 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:18,373 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 18:56:18,389 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 18:56:18,573 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 18:56:18,574 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:18,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:18,574 INFO L85 PathProgramCache]: Analyzing trace with hash -700394504, now seen corresponding path program 1 times [2024-09-12 18:56:18,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:18,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749658254] [2024-09-12 18:56:18,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:18,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:18,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1208217320] [2024-09-12 18:56:18,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:18,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:18,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:18,587 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 18:56:18,593 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 18:56:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:18,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:56:18,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:18,796 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 18:56:18,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:19,086 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 18:56:19,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:19,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749658254] [2024-09-12 18:56:19,087 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:19,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208217320] [2024-09-12 18:56:19,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208217320] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:56:19,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:56:19,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2024-09-12 18:56:19,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116922355] [2024-09-12 18:56:19,088 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:19,088 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:56:19,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:19,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:56:19,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:56:19,089 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 18:56:20,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:20,167 INFO L93 Difference]: Finished difference Result 674 states and 968 transitions. [2024-09-12 18:56:20,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:56:20,168 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 18:56:20,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:20,172 INFO L225 Difference]: With dead ends: 674 [2024-09-12 18:56:20,172 INFO L226 Difference]: Without dead ends: 671 [2024-09-12 18:56:20,173 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:56:20,173 INFO L434 NwaCegarLoop]: 182 mSDtfsCounter, 736 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:20,173 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [737 Valid, 715 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:56:20,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2024-09-12 18:56:20,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 398. [2024-09-12 18:56:20,315 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 18:56:20,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 581 transitions. [2024-09-12 18:56:20,318 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 581 transitions. Word has length 46 [2024-09-12 18:56:20,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:20,318 INFO L474 AbstractCegarLoop]: Abstraction has 398 states and 581 transitions. [2024-09-12 18:56:20,319 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 18:56:20,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:20,319 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 581 transitions. [2024-09-12 18:56:20,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 18:56:20,320 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:20,320 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 18:56:20,336 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 18:56:20,523 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 18:56:20,524 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:20,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:20,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1681122210, now seen corresponding path program 1 times [2024-09-12 18:56:20,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:20,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86652124] [2024-09-12 18:56:20,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:20,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:20,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [44834539] [2024-09-12 18:56:20,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:20,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:20,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:20,535 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 18:56:20,537 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 18:56:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:20,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:56:20,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:20,634 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 18:56:20,634 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:20,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:20,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86652124] [2024-09-12 18:56:20,635 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:20,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44834539] [2024-09-12 18:56:20,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44834539] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:20,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:20,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:56:20,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161977720] [2024-09-12 18:56:20,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:20,636 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:56:20,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:20,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:56:20,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:56:20,637 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 18:56:20,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:20,946 INFO L93 Difference]: Finished difference Result 416 states and 583 transitions. [2024-09-12 18:56:20,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:56:20,947 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 18:56:20,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:20,950 INFO L225 Difference]: With dead ends: 416 [2024-09-12 18:56:20,950 INFO L226 Difference]: Without dead ends: 415 [2024-09-12 18:56:20,950 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 18:56:20,951 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 143 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:20,951 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 212 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:56:20,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-09-12 18:56:21,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 398. [2024-09-12 18:56:21,060 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 18:56:21,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 579 transitions. [2024-09-12 18:56:21,063 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 579 transitions. Word has length 47 [2024-09-12 18:56:21,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:21,063 INFO L474 AbstractCegarLoop]: Abstraction has 398 states and 579 transitions. [2024-09-12 18:56:21,063 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 18:56:21,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:21,064 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 579 transitions. [2024-09-12 18:56:21,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 18:56:21,064 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:21,064 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 18:56:21,085 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-12 18:56:21,265 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 18:56:21,265 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:21,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:21,266 INFO L85 PathProgramCache]: Analyzing trace with hash -237393054, now seen corresponding path program 1 times [2024-09-12 18:56:21,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:21,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097156271] [2024-09-12 18:56:21,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:21,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:21,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [810974576] [2024-09-12 18:56:21,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:21,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:21,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:21,277 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 18:56:21,279 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 18:56:21,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:21,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:56:21,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:21,472 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 18:56:21,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:22,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:22,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097156271] [2024-09-12 18:56:22,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:22,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810974576] [2024-09-12 18:56:22,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810974576] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:22,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:22,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:56:22,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843093280] [2024-09-12 18:56:22,160 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:22,160 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:56:22,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:22,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:56:22,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:56:22,161 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 18:56:22,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:22,609 INFO L93 Difference]: Finished difference Result 641 states and 931 transitions. [2024-09-12 18:56:22,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:56:22,610 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 18:56:22,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:22,613 INFO L225 Difference]: With dead ends: 641 [2024-09-12 18:56:22,614 INFO L226 Difference]: Without dead ends: 639 [2024-09-12 18:56:22,614 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 18:56:22,614 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 18:56:22,615 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 18:56:22,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-09-12 18:56:22,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 563. [2024-09-12 18:56:22,787 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 18:56:22,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 879 transitions. [2024-09-12 18:56:22,790 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 879 transitions. Word has length 47 [2024-09-12 18:56:22,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:22,791 INFO L474 AbstractCegarLoop]: Abstraction has 563 states and 879 transitions. [2024-09-12 18:56:22,791 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 18:56:22,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:22,791 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 879 transitions. [2024-09-12 18:56:22,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 18:56:22,792 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:22,792 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 18:56:22,808 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-12 18:56:22,996 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 18:56:22,997 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:22,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:22,998 INFO L85 PathProgramCache]: Analyzing trace with hash 575181067, now seen corresponding path program 1 times [2024-09-12 18:56:22,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:22,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389907458] [2024-09-12 18:56:22,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:22,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:23,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [564186694] [2024-09-12 18:56:23,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:23,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:23,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:23,008 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 18:56:23,010 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 18:56:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:23,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:56:23,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:23,079 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 18:56:23,079 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:23,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:23,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389907458] [2024-09-12 18:56:23,080 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:23,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564186694] [2024-09-12 18:56:23,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564186694] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:23,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:23,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:56:23,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896712532] [2024-09-12 18:56:23,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:23,081 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:56:23,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:23,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:56:23,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:56:23,082 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 18:56:23,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:23,812 INFO L93 Difference]: Finished difference Result 591 states and 891 transitions. [2024-09-12 18:56:23,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:56:23,813 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 18:56:23,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:23,817 INFO L225 Difference]: With dead ends: 591 [2024-09-12 18:56:23,817 INFO L226 Difference]: Without dead ends: 590 [2024-09-12 18:56:23,818 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 18:56:23,818 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, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:23,819 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 322 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:56:23,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-09-12 18:56:23,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 563. [2024-09-12 18:56:23,982 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 18:56:23,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 877 transitions. [2024-09-12 18:56:23,985 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 877 transitions. Word has length 48 [2024-09-12 18:56:23,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:23,986 INFO L474 AbstractCegarLoop]: Abstraction has 563 states and 877 transitions. [2024-09-12 18:56:23,986 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 18:56:23,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:23,986 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 877 transitions. [2024-09-12 18:56:23,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 18:56:23,987 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:23,987 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 18:56:24,003 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 18:56:24,191 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 18:56:24,192 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:24,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:24,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1231119416, now seen corresponding path program 1 times [2024-09-12 18:56:24,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:24,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334436492] [2024-09-12 18:56:24,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:24,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:24,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:56:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:56:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,329 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 18:56:24,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:24,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334436492] [2024-09-12 18:56:24,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334436492] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:24,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67716070] [2024-09-12 18:56:24,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:24,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:24,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:24,331 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 18:56:24,333 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 18:56:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:56:24,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:24,408 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 18:56:24,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:24,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67716070] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:24,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:24,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-09-12 18:56:24,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937025346] [2024-09-12 18:56:24,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:24,409 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:56:24,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:24,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:56:24,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:56:24,410 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 18:56:24,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:24,753 INFO L93 Difference]: Finished difference Result 768 states and 1111 transitions. [2024-09-12 18:56:24,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:56:24,754 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 18:56:24,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:24,757 INFO L225 Difference]: With dead ends: 768 [2024-09-12 18:56:24,757 INFO L226 Difference]: Without dead ends: 482 [2024-09-12 18:56:24,759 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:56:24,760 INFO L434 NwaCegarLoop]: 177 mSDtfsCounter, 159 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:24,760 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 572 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:56:24,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-09-12 18:56:24,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 357. [2024-09-12 18:56:24,874 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 18:56:24,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 511 transitions. [2024-09-12 18:56:24,877 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 511 transitions. Word has length 48 [2024-09-12 18:56:24,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:24,877 INFO L474 AbstractCegarLoop]: Abstraction has 357 states and 511 transitions. [2024-09-12 18:56:24,877 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 18:56:24,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:24,880 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 511 transitions. [2024-09-12 18:56:24,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 18:56:24,881 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:24,881 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 18:56:24,898 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:25,081 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 18:56:25,082 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:25,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:25,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1230750010, now seen corresponding path program 1 times [2024-09-12 18:56:25,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:25,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457276988] [2024-09-12 18:56:25,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:25,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:25,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1327429871] [2024-09-12 18:56:25,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:25,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:25,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:25,094 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 18:56:25,095 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 18:56:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:25,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:56:25,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:25,319 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 18:56:25,319 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:25,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:25,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457276988] [2024-09-12 18:56:25,545 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:25,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327429871] [2024-09-12 18:56:25,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327429871] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:25,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:25,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:56:25,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273471341] [2024-09-12 18:56:25,546 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:25,546 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:56:25,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:25,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:56:25,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:56:25,547 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 18:56:26,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:26,366 INFO L93 Difference]: Finished difference Result 474 states and 658 transitions. [2024-09-12 18:56:26,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:56:26,367 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 18:56:26,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:26,370 INFO L225 Difference]: With dead ends: 474 [2024-09-12 18:56:26,370 INFO L226 Difference]: Without dead ends: 473 [2024-09-12 18:56:26,371 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 18:56:26,371 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, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:26,372 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 628 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:56:26,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-09-12 18:56:26,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 436. [2024-09-12 18:56:26,515 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 18:56:26,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 650 transitions. [2024-09-12 18:56:26,517 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 650 transitions. Word has length 48 [2024-09-12 18:56:26,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:26,517 INFO L474 AbstractCegarLoop]: Abstraction has 436 states and 650 transitions. [2024-09-12 18:56:26,517 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 18:56:26,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:26,518 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 650 transitions. [2024-09-12 18:56:26,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 18:56:26,519 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:26,519 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 18:56:26,536 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 18:56:26,723 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 18:56:26,724 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:26,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:26,724 INFO L85 PathProgramCache]: Analyzing trace with hash 650744004, now seen corresponding path program 1 times [2024-09-12 18:56:26,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:26,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688684739] [2024-09-12 18:56:26,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:26,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:26,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1313345566] [2024-09-12 18:56:26,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:26,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:26,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:26,738 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 18:56:26,740 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 18:56:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:26,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:56:26,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:26,880 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 18:56:26,881 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:26,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:26,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688684739] [2024-09-12 18:56:26,881 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:26,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313345566] [2024-09-12 18:56:26,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313345566] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:26,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:26,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:56:26,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547604431] [2024-09-12 18:56:26,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:26,882 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:56:26,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:26,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:56:26,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:56:26,883 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 18:56:27,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:27,652 INFO L93 Difference]: Finished difference Result 465 states and 663 transitions. [2024-09-12 18:56:27,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:56:27,653 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 18:56:27,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:27,655 INFO L225 Difference]: With dead ends: 465 [2024-09-12 18:56:27,655 INFO L226 Difference]: Without dead ends: 464 [2024-09-12 18:56:27,656 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:56:27,656 INFO L434 NwaCegarLoop]: 138 mSDtfsCounter, 57 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:27,657 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 320 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:56:27,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-09-12 18:56:27,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 436. [2024-09-12 18:56:27,795 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 18:56:27,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 648 transitions. [2024-09-12 18:56:27,798 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 648 transitions. Word has length 49 [2024-09-12 18:56:27,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:27,798 INFO L474 AbstractCegarLoop]: Abstraction has 436 states and 648 transitions. [2024-09-12 18:56:27,798 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 18:56:27,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:27,799 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 648 transitions. [2024-09-12 18:56:27,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 18:56:27,799 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:27,800 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 18:56:27,820 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 18:56:28,000 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 18:56:28,001 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:28,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:28,001 INFO L85 PathProgramCache]: Analyzing trace with hash -501455260, now seen corresponding path program 1 times [2024-09-12 18:56:28,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:28,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742371544] [2024-09-12 18:56:28,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:28,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:28,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2080663651] [2024-09-12 18:56:28,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:28,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:28,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:28,017 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 18:56:28,020 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 18:56:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:28,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:56:28,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:28,275 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 18:56:28,275 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:29,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:29,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742371544] [2024-09-12 18:56:29,304 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:29,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080663651] [2024-09-12 18:56:29,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080663651] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:29,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:29,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:56:29,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490201495] [2024-09-12 18:56:29,305 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:29,305 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:56:29,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:29,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:56:29,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:56:29,306 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 18:56:30,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:30,030 INFO L93 Difference]: Finished difference Result 482 states and 653 transitions. [2024-09-12 18:56:30,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:56:30,030 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 18:56:30,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:30,033 INFO L225 Difference]: With dead ends: 482 [2024-09-12 18:56:30,033 INFO L226 Difference]: Without dead ends: 481 [2024-09-12 18:56:30,033 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 18:56:30,034 INFO L434 NwaCegarLoop]: 120 mSDtfsCounter, 393 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:30,034 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 650 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:56:30,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-09-12 18:56:30,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 436. [2024-09-12 18:56:30,174 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 18:56:30,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 645 transitions. [2024-09-12 18:56:30,176 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 645 transitions. Word has length 49 [2024-09-12 18:56:30,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:30,177 INFO L474 AbstractCegarLoop]: Abstraction has 436 states and 645 transitions. [2024-09-12 18:56:30,177 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 18:56:30,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:30,177 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 645 transitions. [2024-09-12 18:56:30,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 18:56:30,178 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:30,178 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 18:56:30,198 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 18:56:30,382 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 18:56:30,383 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:30,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:30,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1634756220, now seen corresponding path program 1 times [2024-09-12 18:56:30,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:30,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929695720] [2024-09-12 18:56:30,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:30,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:30,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [327688582] [2024-09-12 18:56:30,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:30,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:30,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:30,395 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 18:56:30,400 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 18:56:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:30,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:56:30,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:30,596 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 18:56:30,596 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:36,129 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 18:56:36,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:36,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929695720] [2024-09-12 18:56:36,130 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:36,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327688582] [2024-09-12 18:56:36,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327688582] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:56:36,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:56:36,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-09-12 18:56:36,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502774154] [2024-09-12 18:56:36,131 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:36,131 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:56:36,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:36,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:56:36,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=163, Unknown=1, NotChecked=0, Total=210 [2024-09-12 18:56:36,132 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 18:56:39,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:39,335 INFO L93 Difference]: Finished difference Result 490 states and 659 transitions. [2024-09-12 18:56:39,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:56:39,335 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 18:56:39,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:39,338 INFO L225 Difference]: With dead ends: 490 [2024-09-12 18:56:39,338 INFO L226 Difference]: Without dead ends: 485 [2024-09-12 18:56:39,338 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=71, Invalid=234, Unknown=1, NotChecked=0, Total=306 [2024-09-12 18:56:39,339 INFO L434 NwaCegarLoop]: 127 mSDtfsCounter, 379 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s 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, 2.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:39,339 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 672 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-09-12 18:56:39,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-09-12 18:56:39,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 357. [2024-09-12 18:56:39,482 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 18:56:39,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 498 transitions. [2024-09-12 18:56:39,484 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 498 transitions. Word has length 50 [2024-09-12 18:56:39,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:39,484 INFO L474 AbstractCegarLoop]: Abstraction has 357 states and 498 transitions. [2024-09-12 18:56:39,484 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 18:56:39,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:39,485 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 498 transitions. [2024-09-12 18:56:39,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-09-12 18:56:39,485 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:39,485 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 18:56:39,504 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-09-12 18:56:39,686 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 18:56:39,686 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:39,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:39,687 INFO L85 PathProgramCache]: Analyzing trace with hash -862164634, now seen corresponding path program 1 times [2024-09-12 18:56:39,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:39,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960289395] [2024-09-12 18:56:39,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:39,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:39,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1560018536] [2024-09-12 18:56:39,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:39,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:39,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:39,704 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 18:56:39,706 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 18:56:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:39,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:56:39,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:39,931 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 18:56:39,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:45,081 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 18:56:45,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:45,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960289395] [2024-09-12 18:56:45,081 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:45,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560018536] [2024-09-12 18:56:45,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560018536] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:56:45,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:56:45,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-09-12 18:56:45,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769326142] [2024-09-12 18:56:45,082 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:45,082 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:56:45,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:45,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:56:45,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=120, Unknown=1, NotChecked=0, Total=156 [2024-09-12 18:56:45,083 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 18:56:46,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:46,888 INFO L93 Difference]: Finished difference Result 409 states and 514 transitions. [2024-09-12 18:56:46,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:56:46,888 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 18:56:46,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:46,895 INFO L225 Difference]: With dead ends: 409 [2024-09-12 18:56:46,895 INFO L226 Difference]: Without dead ends: 407 [2024-09-12 18:56:46,896 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 18:56:46,896 INFO L434 NwaCegarLoop]: 142 mSDtfsCounter, 502 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 1.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:46,897 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 881 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-09-12 18:56:46,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-09-12 18:56:47,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 358. [2024-09-12 18:56:47,031 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 18:56:47,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 495 transitions. [2024-09-12 18:56:47,032 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 495 transitions. Word has length 51 [2024-09-12 18:56:47,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:47,032 INFO L474 AbstractCegarLoop]: Abstraction has 358 states and 495 transitions. [2024-09-12 18:56:47,032 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 18:56:47,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:47,033 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 495 transitions. [2024-09-12 18:56:47,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 18:56:47,033 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:47,033 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 18:56:47,045 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:47,233 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 18:56:47,234 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 18:56:47,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:47,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1833363282, now seen corresponding path program 1 times [2024-09-12 18:56:47,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:47,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447028170] [2024-09-12 18:56:47,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:47,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:47,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:47,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [244327506] [2024-09-12 18:56:47,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:47,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:47,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:47,249 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 18:56:47,250 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 18:56:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:47,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:56:47,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:47,382 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 18:56:47,383 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:47,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:47,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447028170] [2024-09-12 18:56:47,383 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:47,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244327506] [2024-09-12 18:56:47,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244327506] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:47,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:47,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:56:47,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306931432] [2024-09-12 18:56:47,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:47,384 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:56:47,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:47,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:56:47,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:56:47,385 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 18:56:47,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:47,905 INFO L93 Difference]: Finished difference Result 374 states and 500 transitions. [2024-09-12 18:56:47,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:56:47,906 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 18:56:47,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:47,908 INFO L225 Difference]: With dead ends: 374 [2024-09-12 18:56:47,908 INFO L226 Difference]: Without dead ends: 372 [2024-09-12 18:56:47,908 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 18:56:47,909 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 18:56:47,909 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 18:56:47,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-09-12 18:56:48,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 362. [2024-09-12 18:56:48,049 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 18:56:48,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 498 transitions. [2024-09-12 18:56:48,051 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 498 transitions. Word has length 53 [2024-09-12 18:56:48,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:48,052 INFO L474 AbstractCegarLoop]: Abstraction has 362 states and 498 transitions. [2024-09-12 18:56:48,052 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 18:56:48,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:48,052 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 498 transitions. [2024-09-12 18:56:48,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 18:56:48,053 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:48,053 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 18:56:48,069 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-09-12 18:56:48,253 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 18:56:48,254 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 18:56:48,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:48,254 INFO L85 PathProgramCache]: Analyzing trace with hash -330700910, now seen corresponding path program 1 times [2024-09-12 18:56:48,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:48,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123285586] [2024-09-12 18:56:48,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:48,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:48,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [702978588] [2024-09-12 18:56:48,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:48,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:48,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:48,267 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 18:56:48,269 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 18:56:48,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:48,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:56:48,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:48,452 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 18:56:48,452 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:48,602 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 18:56:48,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:48,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123285586] [2024-09-12 18:56:48,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:48,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702978588] [2024-09-12 18:56:48,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702978588] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:56:48,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:56:48,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2024-09-12 18:56:48,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752762919] [2024-09-12 18:56:48,603 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:48,603 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:56:48,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:48,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:56:48,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:56:48,604 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 18:56:49,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:49,550 INFO L93 Difference]: Finished difference Result 409 states and 517 transitions. [2024-09-12 18:56:49,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:56:49,550 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 18:56:49,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:49,552 INFO L225 Difference]: With dead ends: 409 [2024-09-12 18:56:49,552 INFO L226 Difference]: Without dead ends: 407 [2024-09-12 18:56:49,552 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 18:56:49,553 INFO L434 NwaCegarLoop]: 129 mSDtfsCounter, 154 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:49,553 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 801 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:56:49,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-09-12 18:56:49,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 366. [2024-09-12 18:56:49,669 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 18:56:49,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 501 transitions. [2024-09-12 18:56:49,671 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 501 transitions. Word has length 55 [2024-09-12 18:56:49,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:49,672 INFO L474 AbstractCegarLoop]: Abstraction has 366 states and 501 transitions. [2024-09-12 18:56:49,672 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 18:56:49,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:49,672 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 501 transitions. [2024-09-12 18:56:49,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-12 18:56:49,673 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:49,673 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 18:56:49,689 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 18:56:49,873 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 18:56:49,873 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:49,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:49,874 INFO L85 PathProgramCache]: Analyzing trace with hash -215074698, now seen corresponding path program 1 times [2024-09-12 18:56:49,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:49,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626233022] [2024-09-12 18:56:49,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:49,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:50,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:50,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:50,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:50,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:50,056 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:56:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:50,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:56:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:50,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:56:50,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:50,066 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:56:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:50,069 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 18:56:50,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:50,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626233022] [2024-09-12 18:56:50,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626233022] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:50,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096117545] [2024-09-12 18:56:50,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:50,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:50,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:50,071 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 18:56:50,072 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 18:56:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:50,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:56:50,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:50,202 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 18:56:50,202 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:50,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096117545] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:50,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:50,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-09-12 18:56:50,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80015096] [2024-09-12 18:56:50,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:50,203 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:56:50,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:50,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:56:50,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:56:50,204 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 18:56:50,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:50,777 INFO L93 Difference]: Finished difference Result 393 states and 505 transitions. [2024-09-12 18:56:50,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:56:50,778 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 18:56:50,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:50,779 INFO L225 Difference]: With dead ends: 393 [2024-09-12 18:56:50,779 INFO L226 Difference]: Without dead ends: 392 [2024-09-12 18:56:50,780 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 18:56:50,780 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 18:56:50,780 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 18:56:50,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-09-12 18:56:50,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 366. [2024-09-12 18:56:50,933 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 18:56:50,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 500 transitions. [2024-09-12 18:56:50,938 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 500 transitions. Word has length 57 [2024-09-12 18:56:50,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:50,938 INFO L474 AbstractCegarLoop]: Abstraction has 366 states and 500 transitions. [2024-09-12 18:56:50,938 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 18:56:50,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:50,939 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 500 transitions. [2024-09-12 18:56:50,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-12 18:56:50,939 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:50,939 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 18:56:50,959 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 18:56:51,139 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 18:56:51,140 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:51,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:51,140 INFO L85 PathProgramCache]: Analyzing trace with hash 24165517, now seen corresponding path program 1 times [2024-09-12 18:56:51,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:51,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976045267] [2024-09-12 18:56:51,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:51,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:51,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [969401401] [2024-09-12 18:56:51,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:51,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:51,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:51,150 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 18:56:51,152 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 18:56:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:51,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:56:51,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:51,351 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 18:56:51,351 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:59,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:59,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976045267] [2024-09-12 18:56:59,511 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:59,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969401401] [2024-09-12 18:56:59,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969401401] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:59,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:59,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:56:59,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723371850] [2024-09-12 18:56:59,511 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:59,511 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:56:59,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:59,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:56:59,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=111, Unknown=2, NotChecked=0, Total=156 [2024-09-12 18:56:59,512 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 18:56:59,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:59,930 INFO L93 Difference]: Finished difference Result 419 states and 522 transitions. [2024-09-12 18:56:59,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:56:59,931 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 18:56:59,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:59,933 INFO L225 Difference]: With dead ends: 419 [2024-09-12 18:56:59,933 INFO L226 Difference]: Without dead ends: 417 [2024-09-12 18:56:59,933 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=43, Invalid=111, Unknown=2, NotChecked=0, Total=156 [2024-09-12 18:56:59,933 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 18:56:59,933 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 18:56:59,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-09-12 18:57:00,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 366. [2024-09-12 18:57:00,070 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 18:57:00,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 496 transitions. [2024-09-12 18:57:00,071 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 496 transitions. Word has length 57 [2024-09-12 18:57:00,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:00,072 INFO L474 AbstractCegarLoop]: Abstraction has 366 states and 496 transitions. [2024-09-12 18:57:00,072 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 18:57:00,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:00,072 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 496 transitions. [2024-09-12 18:57:00,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 18:57:00,073 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:00,073 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 18:57:00,088 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-09-12 18:57:00,273 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 18:57:00,274 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:00,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:00,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1922619074, now seen corresponding path program 1 times [2024-09-12 18:57:00,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:00,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233123694] [2024-09-12 18:57:00,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:00,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:00,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:00,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1348582799] [2024-09-12 18:57:00,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:00,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:00,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:00,285 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 18:57:00,290 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 18:57:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:00,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:57:00,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:00,388 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 18:57:00,388 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:57:00,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:00,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233123694] [2024-09-12 18:57:00,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:00,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348582799] [2024-09-12 18:57:00,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348582799] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:00,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:00,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:57:00,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315297917] [2024-09-12 18:57:00,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:00,389 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:57:00,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:00,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:57:00,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:57:00,390 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 18:57:00,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:00,922 INFO L93 Difference]: Finished difference Result 393 states and 500 transitions. [2024-09-12 18:57:00,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:57:00,923 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 18:57:00,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:00,924 INFO L225 Difference]: With dead ends: 393 [2024-09-12 18:57:00,924 INFO L226 Difference]: Without dead ends: 392 [2024-09-12 18:57:00,925 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 18:57:00,925 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, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:00,925 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 299 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:57:00,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-09-12 18:57:01,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 366. [2024-09-12 18:57:01,076 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 18:57:01,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 495 transitions. [2024-09-12 18:57:01,078 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 495 transitions. Word has length 58 [2024-09-12 18:57:01,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:01,078 INFO L474 AbstractCegarLoop]: Abstraction has 366 states and 495 transitions. [2024-09-12 18:57:01,079 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 18:57:01,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:01,079 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 495 transitions. [2024-09-12 18:57:01,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 18:57:01,079 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:01,080 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 18:57:01,096 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 18:57:01,280 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 18:57:01,280 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:01,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:01,281 INFO L85 PathProgramCache]: Analyzing trace with hash 749131130, now seen corresponding path program 1 times [2024-09-12 18:57:01,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:01,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748931808] [2024-09-12 18:57:01,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:01,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:01,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2084106634] [2024-09-12 18:57:01,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:01,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:01,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:01,297 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 18:57:01,299 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 18:57:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:01,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:57:01,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:01,512 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 18:57:01,513 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:06,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:06,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748931808] [2024-09-12 18:57:06,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:06,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084106634] [2024-09-12 18:57:06,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084106634] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:57:06,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:57:06,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:57:06,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879159182] [2024-09-12 18:57:06,807 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:06,807 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:57:06,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:06,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:57:06,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=111, Unknown=2, NotChecked=0, Total=156 [2024-09-12 18:57:06,808 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 18:57:07,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:07,308 INFO L93 Difference]: Finished difference Result 419 states and 517 transitions. [2024-09-12 18:57:07,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:57:07,308 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 18:57:07,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:07,309 INFO L225 Difference]: With dead ends: 419 [2024-09-12 18:57:07,309 INFO L226 Difference]: Without dead ends: 417 [2024-09-12 18:57:07,310 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=54, Invalid=126, Unknown=2, NotChecked=0, Total=182 [2024-09-12 18:57:07,310 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 18:57:07,311 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 18:57:07,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-09-12 18:57:07,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 366. [2024-09-12 18:57:07,429 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 18:57:07,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 491 transitions. [2024-09-12 18:57:07,430 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 491 transitions. Word has length 58 [2024-09-12 18:57:07,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:07,430 INFO L474 AbstractCegarLoop]: Abstraction has 366 states and 491 transitions. [2024-09-12 18:57:07,430 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 18:57:07,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:07,431 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 491 transitions. [2024-09-12 18:57:07,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 18:57:07,431 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:07,431 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 18:57:07,443 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 18:57:07,632 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 18:57:07,632 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:07,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:07,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1748228655, now seen corresponding path program 1 times [2024-09-12 18:57:07,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:07,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299076716] [2024-09-12 18:57:07,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:07,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:07,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:07,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [933110395] [2024-09-12 18:57:07,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:07,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:07,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:07,645 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 18:57:07,647 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 18:57:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:07,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:57:07,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:07,935 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 18:57:07,935 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:16,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:16,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299076716] [2024-09-12 18:57:16,358 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:16,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933110395] [2024-09-12 18:57:16,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933110395] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:57:16,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:57:16,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:57:16,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626220211] [2024-09-12 18:57:16,359 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:16,359 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:57:16,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:16,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:57:16,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=341, Unknown=2, NotChecked=0, Total=420 [2024-09-12 18:57:16,360 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 18:57:17,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:17,655 INFO L93 Difference]: Finished difference Result 494 states and 636 transitions. [2024-09-12 18:57:17,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:57:17,656 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 18:57:17,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:17,658 INFO L225 Difference]: With dead ends: 494 [2024-09-12 18:57:17,658 INFO L226 Difference]: Without dead ends: 493 [2024-09-12 18:57:17,658 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=145, Invalid=609, Unknown=2, NotChecked=0, Total=756 [2024-09-12 18:57:17,659 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 18:57:17,659 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 18:57:17,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-09-12 18:57:17,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 379. [2024-09-12 18:57:17,788 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 18:57:17,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 505 transitions. [2024-09-12 18:57:17,789 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 505 transitions. Word has length 59 [2024-09-12 18:57:17,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:17,789 INFO L474 AbstractCegarLoop]: Abstraction has 379 states and 505 transitions. [2024-09-12 18:57:17,789 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 18:57:17,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:17,790 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 505 transitions. [2024-09-12 18:57:17,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-09-12 18:57:17,790 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:17,791 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 18:57:17,808 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 18:57:17,994 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 18:57:17,995 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:17,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:17,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1639486436, now seen corresponding path program 1 times [2024-09-12 18:57:17,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:17,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752465481] [2024-09-12 18:57:17,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:17,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:18,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [859866955] [2024-09-12 18:57:18,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:18,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:18,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:18,007 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 18:57:18,010 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 18:57:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:18,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:57:18,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:18,348 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 18:57:18,349 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:23,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:23,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752465481] [2024-09-12 18:57:23,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:23,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859866955] [2024-09-12 18:57:23,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859866955] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:57:23,579 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:57:23,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:57:23,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219850015] [2024-09-12 18:57:23,580 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:23,580 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:57:23,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:23,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:57:23,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=342, Unknown=1, NotChecked=0, Total=420 [2024-09-12 18:57:23,581 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 18:57:24,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:24,702 INFO L93 Difference]: Finished difference Result 494 states and 635 transitions. [2024-09-12 18:57:24,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:57:24,703 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 18:57:24,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:24,704 INFO L225 Difference]: With dead ends: 494 [2024-09-12 18:57:24,704 INFO L226 Difference]: Without dead ends: 493 [2024-09-12 18:57:24,705 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=145, Invalid=610, Unknown=1, NotChecked=0, Total=756 [2024-09-12 18:57:24,705 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 18:57:24,705 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 18:57:24,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-09-12 18:57:24,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 368. [2024-09-12 18:57:24,869 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 18:57:24,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 493 transitions. [2024-09-12 18:57:24,871 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 493 transitions. Word has length 60 [2024-09-12 18:57:24,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:24,871 INFO L474 AbstractCegarLoop]: Abstraction has 368 states and 493 transitions. [2024-09-12 18:57:24,871 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 18:57:24,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:24,872 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 493 transitions. [2024-09-12 18:57:24,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-09-12 18:57:24,876 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:24,876 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 18:57:24,893 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-09-12 18:57:25,077 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 18:57:25,077 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 18:57:25,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:25,078 INFO L85 PathProgramCache]: Analyzing trace with hash 962205802, now seen corresponding path program 1 times [2024-09-12 18:57:25,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:25,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121500132] [2024-09-12 18:57:25,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:25,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:25,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1021273325] [2024-09-12 18:57:25,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:25,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:25,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:25,093 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 18:57:25,094 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 18:57:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:25,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:57:25,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:25,226 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 18:57:25,226 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:57:25,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:25,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121500132] [2024-09-12 18:57:25,227 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:25,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021273325] [2024-09-12 18:57:25,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021273325] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:25,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:25,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:57:25,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973639307] [2024-09-12 18:57:25,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:25,228 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:57:25,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:25,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:57:25,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:57:25,228 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 18:57:25,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:25,460 INFO L93 Difference]: Finished difference Result 398 states and 510 transitions. [2024-09-12 18:57:25,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:57:25,461 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 18:57:25,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:25,463 INFO L225 Difference]: With dead ends: 398 [2024-09-12 18:57:25,463 INFO L226 Difference]: Without dead ends: 396 [2024-09-12 18:57:25,463 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 18:57:25,464 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 18:57:25,464 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 18:57:25,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-09-12 18:57:25,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 372. [2024-09-12 18:57:25,595 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 18:57:25,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 496 transitions. [2024-09-12 18:57:25,597 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 496 transitions. Word has length 62 [2024-09-12 18:57:25,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:25,597 INFO L474 AbstractCegarLoop]: Abstraction has 372 states and 496 transitions. [2024-09-12 18:57:25,597 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 18:57:25,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:25,597 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 496 transitions. [2024-09-12 18:57:25,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-12 18:57:25,598 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:25,598 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 18:57:25,614 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-09-12 18:57:25,802 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 18:57:25,803 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:25,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:25,803 INFO L85 PathProgramCache]: Analyzing trace with hash 715528145, now seen corresponding path program 1 times [2024-09-12 18:57:25,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:25,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815961232] [2024-09-12 18:57:25,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:25,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:25,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [361325760] [2024-09-12 18:57:25,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:25,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:25,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:25,817 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 18:57:25,819 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 18:57:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:25,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:57:25,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:25,947 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 18:57:25,947 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:34,098 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 18:57:34,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:34,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815961232] [2024-09-12 18:57:34,098 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:34,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361325760] [2024-09-12 18:57:34,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361325760] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:57:34,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:57:34,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2024-09-12 18:57:34,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683402524] [2024-09-12 18:57:34,098 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:34,099 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:57:34,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:34,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:57:34,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=38, Unknown=2, NotChecked=0, Total=56 [2024-09-12 18:57:34,099 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 18:57:35,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:35,861 INFO L93 Difference]: Finished difference Result 645 states and 831 transitions. [2024-09-12 18:57:35,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:57:35,862 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 18:57:35,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:35,864 INFO L225 Difference]: With dead ends: 645 [2024-09-12 18:57:35,864 INFO L226 Difference]: Without dead ends: 640 [2024-09-12 18:57:35,864 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 18:57:35,864 INFO L434 NwaCegarLoop]: 195 mSDtfsCounter, 344 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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 18:57:35,865 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 18:57:35,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2024-09-12 18:57:36,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 532. [2024-09-12 18:57:36,057 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 18:57:36,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 769 transitions. [2024-09-12 18:57:36,060 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 769 transitions. Word has length 61 [2024-09-12 18:57:36,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:36,060 INFO L474 AbstractCegarLoop]: Abstraction has 532 states and 769 transitions. [2024-09-12 18:57:36,060 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 18:57:36,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:36,060 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 769 transitions. [2024-09-12 18:57:36,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-09-12 18:57:36,061 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:36,061 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 18:57:36,074 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-09-12 18:57:36,261 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 18:57:36,262 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:36,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:36,262 INFO L85 PathProgramCache]: Analyzing trace with hash 706536126, now seen corresponding path program 1 times [2024-09-12 18:57:36,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:36,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949454293] [2024-09-12 18:57:36,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:36,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:36,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [145018328] [2024-09-12 18:57:36,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:36,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:36,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:36,273 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 18:57:36,274 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 18:57:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:36,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:57:36,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:36,528 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 18:57:36,528 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:44,646 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 18:57:44,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:44,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949454293] [2024-09-12 18:57:44,647 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:44,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145018328] [2024-09-12 18:57:44,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145018328] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:57:44,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:57:44,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2024-09-12 18:57:44,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436697284] [2024-09-12 18:57:44,647 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:44,648 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:57:44,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:44,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:57:44,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=38, Unknown=2, NotChecked=0, Total=56 [2024-09-12 18:57:44,648 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 18:57:46,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:46,921 INFO L93 Difference]: Finished difference Result 642 states and 824 transitions. [2024-09-12 18:57:46,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:57:46,922 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 18:57:46,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:46,925 INFO L225 Difference]: With dead ends: 642 [2024-09-12 18:57:46,925 INFO L226 Difference]: Without dead ends: 641 [2024-09-12 18:57:46,925 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 115 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 18:57:46,926 INFO L434 NwaCegarLoop]: 197 mSDtfsCounter, 204 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 2.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:46,926 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 901 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-09-12 18:57:46,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-09-12 18:57:47,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 532. [2024-09-12 18:57:47,147 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 18:57:47,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 767 transitions. [2024-09-12 18:57:47,149 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 767 transitions. Word has length 62 [2024-09-12 18:57:47,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:47,149 INFO L474 AbstractCegarLoop]: Abstraction has 532 states and 767 transitions. [2024-09-12 18:57:47,149 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 18:57:47,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:47,149 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 767 transitions. [2024-09-12 18:57:47,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-09-12 18:57:47,150 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:47,150 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 18:57:47,162 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-09-12 18:57:47,350 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 18:57:47,350 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:47,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:47,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1261967351, now seen corresponding path program 1 times [2024-09-12 18:57:47,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:47,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675459834] [2024-09-12 18:57:47,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:47,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:47,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1350172746] [2024-09-12 18:57:47,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:47,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:47,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:47,361 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 18:57:47,364 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 18:57:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:47,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:57:47,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:47,457 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 18:57:47,457 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:57:47,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:47,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675459834] [2024-09-12 18:57:47,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:47,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350172746] [2024-09-12 18:57:47,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350172746] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:47,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:47,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:57:47,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152204467] [2024-09-12 18:57:47,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:47,458 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:57:47,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:47,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:57:47,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:57:47,459 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 18:57:47,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:47,971 INFO L93 Difference]: Finished difference Result 609 states and 857 transitions. [2024-09-12 18:57:47,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:57:47,972 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 18:57:47,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:47,974 INFO L225 Difference]: With dead ends: 609 [2024-09-12 18:57:47,974 INFO L226 Difference]: Without dead ends: 606 [2024-09-12 18:57:47,974 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 18:57:47,974 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 203 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:47,975 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 299 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:57:47,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-09-12 18:57:48,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 588. [2024-09-12 18:57:48,182 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 18:57:48,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 843 transitions. [2024-09-12 18:57:48,184 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 843 transitions. Word has length 64 [2024-09-12 18:57:48,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:48,184 INFO L474 AbstractCegarLoop]: Abstraction has 588 states and 843 transitions. [2024-09-12 18:57:48,184 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 18:57:48,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:48,184 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 843 transitions. [2024-09-12 18:57:48,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 18:57:48,185 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:48,185 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 18:57:48,197 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-09-12 18:57:48,385 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 18:57:48,385 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:48,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:48,386 INFO L85 PathProgramCache]: Analyzing trace with hash 466282342, now seen corresponding path program 1 times [2024-09-12 18:57:48,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:48,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755515377] [2024-09-12 18:57:48,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:48,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:48,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1394676272] [2024-09-12 18:57:48,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:48,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:48,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:48,400 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 18:57:48,402 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 18:57:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:48,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:57:48,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:48,498 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 18:57:48,499 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:57:48,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:48,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755515377] [2024-09-12 18:57:48,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:48,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394676272] [2024-09-12 18:57:48,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394676272] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:48,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:48,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:57:48,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748142527] [2024-09-12 18:57:48,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:48,499 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:57:48,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:48,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:57:48,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:57:48,500 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 18:57:48,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:48,896 INFO L93 Difference]: Finished difference Result 607 states and 851 transitions. [2024-09-12 18:57:48,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:57:48,897 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 18:57:48,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:48,898 INFO L225 Difference]: With dead ends: 607 [2024-09-12 18:57:48,898 INFO L226 Difference]: Without dead ends: 606 [2024-09-12 18:57:48,899 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 18:57:48,899 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 214 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:48,899 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 224 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:57:48,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-09-12 18:57:49,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 588. [2024-09-12 18:57:49,083 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 18:57:49,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 841 transitions. [2024-09-12 18:57:49,090 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 841 transitions. Word has length 65 [2024-09-12 18:57:49,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:49,090 INFO L474 AbstractCegarLoop]: Abstraction has 588 states and 841 transitions. [2024-09-12 18:57:49,090 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 18:57:49,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:49,091 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 841 transitions. [2024-09-12 18:57:49,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-09-12 18:57:49,091 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:49,091 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 18:57:49,103 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-09-12 18:57:49,291 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 18:57:49,292 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 18:57:49,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:49,292 INFO L85 PathProgramCache]: Analyzing trace with hash 935255464, now seen corresponding path program 1 times [2024-09-12 18:57:49,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:49,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884222510] [2024-09-12 18:57:49,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:49,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:49,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [511930668] [2024-09-12 18:57:49,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:49,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:49,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:49,303 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 18:57:49,305 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 18:57:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:49,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 18:57:49,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:49,534 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 18:57:49,534 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:49,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:49,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884222510] [2024-09-12 18:57:49,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:49,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511930668] [2024-09-12 18:57:49,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511930668] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:57:49,579 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:57:49,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:57:49,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894748744] [2024-09-12 18:57:49,579 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:49,579 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:57:49,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:49,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:57:49,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:57:49,580 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 18:57:50,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:50,428 INFO L93 Difference]: Finished difference Result 634 states and 853 transitions. [2024-09-12 18:57:50,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:57:50,429 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 18:57:50,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:50,431 INFO L225 Difference]: With dead ends: 634 [2024-09-12 18:57:50,431 INFO L226 Difference]: Without dead ends: 632 [2024-09-12 18:57:50,431 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 18:57:50,431 INFO L434 NwaCegarLoop]: 137 mSDtfsCounter, 162 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:50,432 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 733 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:57:50,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2024-09-12 18:57:50,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 596. [2024-09-12 18:57:50,623 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 18:57:50,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 847 transitions. [2024-09-12 18:57:50,625 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 847 transitions. Word has length 66 [2024-09-12 18:57:50,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:50,625 INFO L474 AbstractCegarLoop]: Abstraction has 596 states and 847 transitions. [2024-09-12 18:57:50,625 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 18:57:50,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:50,625 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 847 transitions. [2024-09-12 18:57:50,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-09-12 18:57:50,625 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:50,626 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 18:57:50,641 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-09-12 18:57:50,826 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 18:57:50,826 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 18:57:50,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:50,826 INFO L85 PathProgramCache]: Analyzing trace with hash -468967476, now seen corresponding path program 1 times [2024-09-12 18:57:50,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:50,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574745246] [2024-09-12 18:57:50,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:50,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:50,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1751349438] [2024-09-12 18:57:50,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:50,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:50,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:50,838 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 18:57:50,840 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 18:57:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:50,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:57:50,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:50,961 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 18:57:50,961 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:57:50,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:50,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574745246] [2024-09-12 18:57:50,962 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:50,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751349438] [2024-09-12 18:57:50,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751349438] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:50,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:50,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:57:50,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262279112] [2024-09-12 18:57:50,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:50,963 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:57:50,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:50,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:57:50,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:57:50,963 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 18:57:51,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:51,451 INFO L93 Difference]: Finished difference Result 814 states and 1200 transitions. [2024-09-12 18:57:51,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:57:51,452 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 18:57:51,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:51,455 INFO L225 Difference]: With dead ends: 814 [2024-09-12 18:57:51,455 INFO L226 Difference]: Without dead ends: 810 [2024-09-12 18:57:51,456 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 18:57:51,456 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 18:57:51,456 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 18:57:51,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-09-12 18:57:51,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 790. [2024-09-12 18:57:51,718 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 18:57:51,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1162 transitions. [2024-09-12 18:57:51,720 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1162 transitions. Word has length 69 [2024-09-12 18:57:51,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:51,720 INFO L474 AbstractCegarLoop]: Abstraction has 790 states and 1162 transitions. [2024-09-12 18:57:51,720 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 18:57:51,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:51,720 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1162 transitions. [2024-09-12 18:57:51,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-09-12 18:57:51,721 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:51,721 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 18:57:51,733 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-09-12 18:57:51,921 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 18:57:51,921 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:51,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:51,922 INFO L85 PathProgramCache]: Analyzing trace with hash 293981980, now seen corresponding path program 1 times [2024-09-12 18:57:51,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:51,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897852795] [2024-09-12 18:57:51,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:51,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:51,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:57:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:51,985 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:57:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:51,988 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:57:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:51,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:57:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:51,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:57:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:51,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:57:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:51,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:57:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:52,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:57:52,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:52,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:57:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:52,005 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 18:57:52,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:52,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897852795] [2024-09-12 18:57:52,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897852795] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:52,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:52,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:57:52,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379336703] [2024-09-12 18:57:52,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:52,006 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:57:52,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:52,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:57:52,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:57:52,007 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 18:57:52,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:52,777 INFO L93 Difference]: Finished difference Result 812 states and 1174 transitions. [2024-09-12 18:57:52,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:57:52,777 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 18:57:52,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:52,781 INFO L225 Difference]: With dead ends: 812 [2024-09-12 18:57:52,781 INFO L226 Difference]: Without dead ends: 810 [2024-09-12 18:57:52,781 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 18:57:52,782 INFO L434 NwaCegarLoop]: 86 mSDtfsCounter, 230 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:52,782 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 297 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:57:52,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-09-12 18:57:53,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 792. [2024-09-12 18:57:53,172 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 18:57:53,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1162 transitions. [2024-09-12 18:57:53,174 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1162 transitions. Word has length 71 [2024-09-12 18:57:53,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:53,175 INFO L474 AbstractCegarLoop]: Abstraction has 792 states and 1162 transitions. [2024-09-12 18:57:53,175 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 18:57:53,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:53,176 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1162 transitions. [2024-09-12 18:57:53,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-09-12 18:57:53,176 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:53,176 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 18:57:53,176 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-09-12 18:57:53,177 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:53,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:53,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1702162544, now seen corresponding path program 1 times [2024-09-12 18:57:53,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:53,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113451421] [2024-09-12 18:57:53,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:53,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:53,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:57:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:53,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:57:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:53,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:57:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:53,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:57:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:53,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:57:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:53,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 18:57:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:53,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 18:57:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:53,425 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 18:57:53,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:53,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113451421] [2024-09-12 18:57:53,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113451421] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:57:53,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187656268] [2024-09-12 18:57:53,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:53,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:53,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:53,427 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 18:57:53,428 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 18:57:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:53,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:57:53,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:53,616 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 18:57:53,616 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:57:53,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187656268] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:53,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:57:53,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2024-09-12 18:57:53,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154095282] [2024-09-12 18:57:53,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:53,617 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:57:53,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:53,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:57:53,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:57:53,619 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 18:57:54,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:54,611 INFO L93 Difference]: Finished difference Result 845 states and 1170 transitions. [2024-09-12 18:57:54,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:57:54,611 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 18:57:54,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:54,614 INFO L225 Difference]: With dead ends: 845 [2024-09-12 18:57:54,614 INFO L226 Difference]: Without dead ends: 844 [2024-09-12 18:57:54,614 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 18:57:54,615 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 18:57:54,615 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 18:57:54,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2024-09-12 18:57:54,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 792. [2024-09-12 18:57:54,895 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 18:57:54,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1160 transitions. [2024-09-12 18:57:54,898 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1160 transitions. Word has length 70 [2024-09-12 18:57:54,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:54,898 INFO L474 AbstractCegarLoop]: Abstraction has 792 states and 1160 transitions. [2024-09-12 18:57:54,898 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 18:57:54,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:54,898 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1160 transitions. [2024-09-12 18:57:54,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-09-12 18:57:54,899 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:54,899 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 18:57:54,915 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-09-12 18:57:55,103 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 18:57:55,104 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:55,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:55,104 INFO L85 PathProgramCache]: Analyzing trace with hash 523506918, now seen corresponding path program 1 times [2024-09-12 18:57:55,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:55,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3241577] [2024-09-12 18:57:55,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:55,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:55,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:57:55,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:55,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:57:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:55,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:57:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:55,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:57:55,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:55,174 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:57:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:55,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:57:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:55,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:57:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:55,183 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:57:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:55,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:57:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:55,187 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 18:57:55,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:55,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3241577] [2024-09-12 18:57:55,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3241577] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:55,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:55,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:57:55,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219167782] [2024-09-12 18:57:55,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:55,191 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:57:55,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:55,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:57:55,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:57:55,193 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 18:57:55,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:55,877 INFO L93 Difference]: Finished difference Result 821 states and 1168 transitions. [2024-09-12 18:57:55,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:57:55,877 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 18:57:55,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:55,880 INFO L225 Difference]: With dead ends: 821 [2024-09-12 18:57:55,880 INFO L226 Difference]: Without dead ends: 819 [2024-09-12 18:57:55,880 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 18:57:55,881 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 18:57:55,881 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 18:57:55,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2024-09-12 18:57:56,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 792. [2024-09-12 18:57:56,149 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 18:57:56,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1158 transitions. [2024-09-12 18:57:56,152 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1158 transitions. Word has length 72 [2024-09-12 18:57:56,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:56,152 INFO L474 AbstractCegarLoop]: Abstraction has 792 states and 1158 transitions. [2024-09-12 18:57:56,152 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 18:57:56,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:56,152 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1158 transitions. [2024-09-12 18:57:56,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-09-12 18:57:56,153 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:56,153 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 18:57:56,153 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-09-12 18:57:56,153 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:56,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:56,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1227431432, now seen corresponding path program 1 times [2024-09-12 18:57:56,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:56,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867889754] [2024-09-12 18:57:56,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:56,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:56,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1176212681] [2024-09-12 18:57:56,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:56,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:56,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:56,164 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 18:57:56,165 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 18:57:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:56,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:57:56,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:56,275 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 18:57:56,275 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:56,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:56,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867889754] [2024-09-12 18:57:56,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:56,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176212681] [2024-09-12 18:57:56,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176212681] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:57:56,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:57:56,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 18:57:56,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073159804] [2024-09-12 18:57:56,292 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:56,292 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:57:56,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:56,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:57:56,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:57:56,293 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 18:57:57,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:57,063 INFO L93 Difference]: Finished difference Result 835 states and 1174 transitions. [2024-09-12 18:57:57,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:57:57,064 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 18:57:57,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:57,066 INFO L225 Difference]: With dead ends: 835 [2024-09-12 18:57:57,066 INFO L226 Difference]: Without dead ends: 834 [2024-09-12 18:57:57,066 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 18:57:57,067 INFO L434 NwaCegarLoop]: 120 mSDtfsCounter, 358 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:57,067 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 359 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:57:57,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-09-12 18:57:57,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 792. [2024-09-12 18:57:57,340 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 18:57:57,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1150 transitions. [2024-09-12 18:57:57,342 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1150 transitions. Word has length 71 [2024-09-12 18:57:57,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:57,342 INFO L474 AbstractCegarLoop]: Abstraction has 792 states and 1150 transitions. [2024-09-12 18:57:57,342 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 18:57:57,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:57,342 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1150 transitions. [2024-09-12 18:57:57,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-09-12 18:57:57,343 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:57,343 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 18:57:57,354 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 18:57:57,543 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 18:57:57,543 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:57,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:57,544 INFO L85 PathProgramCache]: Analyzing trace with hash 578978837, now seen corresponding path program 1 times [2024-09-12 18:57:57,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:57,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721246201] [2024-09-12 18:57:57,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:57,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:57,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:57:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:57,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:57:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:57,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:57:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:57,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:57:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:57,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:57:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:57,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:57:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:57,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:57:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:57,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:57:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:57,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:57:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:57,609 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 18:57:57,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:57,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721246201] [2024-09-12 18:57:57,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721246201] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:57,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:57,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:57:57,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863039920] [2024-09-12 18:57:57,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:57,611 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:57:57,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:57,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:57:57,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:57:57,612 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 18:57:58,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:58,109 INFO L93 Difference]: Finished difference Result 835 states and 1205 transitions. [2024-09-12 18:57:58,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:57:58,109 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 18:57:58,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:58,113 INFO L225 Difference]: With dead ends: 835 [2024-09-12 18:57:58,113 INFO L226 Difference]: Without dead ends: 834 [2024-09-12 18:57:58,114 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 18:57:58,114 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 18:57:58,114 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 18:57:58,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-09-12 18:57:58,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 797. [2024-09-12 18:57:58,622 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 18:57:58,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1155 transitions. [2024-09-12 18:57:58,624 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1155 transitions. Word has length 74 [2024-09-12 18:57:58,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:58,625 INFO L474 AbstractCegarLoop]: Abstraction has 797 states and 1155 transitions. [2024-09-12 18:57:58,625 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 18:57:58,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:58,625 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1155 transitions. [2024-09-12 18:57:58,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-09-12 18:57:58,626 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:58,626 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 18:57:58,626 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-09-12 18:57:58,626 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:58,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:58,627 INFO L85 PathProgramCache]: Analyzing trace with hash 768474913, now seen corresponding path program 1 times [2024-09-12 18:57:58,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:58,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061079143] [2024-09-12 18:57:58,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:58,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:58,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:57:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:58,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:57:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:58,697 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:57:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:58,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:57:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:58,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:57:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:58,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:57:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:58,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:57:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:58,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:57:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:58,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:57:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:58,714 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 18:57:58,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:58,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061079143] [2024-09-12 18:57:58,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061079143] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:58,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:58,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:57:58,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699763578] [2024-09-12 18:57:58,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:58,715 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:57:58,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:58,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:57:58,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:57:58,716 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 18:57:59,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:59,566 INFO L93 Difference]: Finished difference Result 813 states and 1155 transitions. [2024-09-12 18:57:59,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:57:59,567 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 18:57:59,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:59,569 INFO L225 Difference]: With dead ends: 813 [2024-09-12 18:57:59,569 INFO L226 Difference]: Without dead ends: 812 [2024-09-12 18:57:59,570 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 18:57:59,570 INFO L434 NwaCegarLoop]: 96 mSDtfsCounter, 208 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:59,570 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 378 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:57:59,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2024-09-12 18:57:59,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 797. [2024-09-12 18:57:59,871 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 18:57:59,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1154 transitions. [2024-09-12 18:57:59,873 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1154 transitions. Word has length 75 [2024-09-12 18:57:59,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:59,873 INFO L474 AbstractCegarLoop]: Abstraction has 797 states and 1154 transitions. [2024-09-12 18:57:59,873 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 18:57:59,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:59,873 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1154 transitions. [2024-09-12 18:57:59,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 18:57:59,873 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:59,874 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 18:57:59,874 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-09-12 18:57:59,874 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:59,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:59,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1947081321, now seen corresponding path program 1 times [2024-09-12 18:57:59,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:59,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673108667] [2024-09-12 18:57:59,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:59,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:59,922 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:57:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:59,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:57:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:59,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:57:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:59,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:57:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:59,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:57:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:59,929 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:57:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:59,931 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:57:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:59,934 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:57:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:59,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:57:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:59,938 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 18:57:59,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:59,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673108667] [2024-09-12 18:57:59,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673108667] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:59,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:59,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:57:59,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085370910] [2024-09-12 18:57:59,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:59,939 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:57:59,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:59,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:57:59,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:57:59,940 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 18:58:00,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:00,531 INFO L93 Difference]: Finished difference Result 872 states and 1227 transitions. [2024-09-12 18:58:00,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:58:00,531 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 18:58:00,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:00,535 INFO L225 Difference]: With dead ends: 872 [2024-09-12 18:58:00,535 INFO L226 Difference]: Without dead ends: 870 [2024-09-12 18:58:00,536 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 18:58:00,536 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 18:58:00,536 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 18:58:00,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-09-12 18:58:00,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 817. [2024-09-12 18:58:00,916 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 18:58:00,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1178 transitions. [2024-09-12 18:58:00,918 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1178 transitions. Word has length 76 [2024-09-12 18:58:00,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:00,918 INFO L474 AbstractCegarLoop]: Abstraction has 817 states and 1178 transitions. [2024-09-12 18:58:00,918 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 18:58:00,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:00,918 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1178 transitions. [2024-09-12 18:58:00,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-09-12 18:58:00,918 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:00,919 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 18:58:00,919 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-09-12 18:58:00,919 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:00,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:00,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1194021565, now seen corresponding path program 1 times [2024-09-12 18:58:00,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:00,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775465523] [2024-09-12 18:58:00,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:00,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:00,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1254833840] [2024-09-12 18:58:00,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:00,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:00,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:00,931 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 18:58:00,934 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 18:58:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:00,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:58:00,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:01,097 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 18:58:01,097 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:01,226 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 18:58:01,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:01,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775465523] [2024-09-12 18:58:01,227 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:01,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254833840] [2024-09-12 18:58:01,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254833840] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:58:01,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:58:01,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-09-12 18:58:01,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316976206] [2024-09-12 18:58:01,228 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:01,228 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:58:01,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:01,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:58:01,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:58:01,229 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 18:58:02,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:02,885 INFO L93 Difference]: Finished difference Result 960 states and 1273 transitions. [2024-09-12 18:58:02,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:58:02,886 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 18:58:02,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:02,890 INFO L225 Difference]: With dead ends: 960 [2024-09-12 18:58:02,890 INFO L226 Difference]: Without dead ends: 959 [2024-09-12 18:58:02,890 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 18:58:02,891 INFO L434 NwaCegarLoop]: 112 mSDtfsCounter, 923 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:02,891 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 632 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:58:02,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2024-09-12 18:58:03,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 863. [2024-09-12 18:58:03,221 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 18:58:03,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1236 transitions. [2024-09-12 18:58:03,223 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1236 transitions. Word has length 77 [2024-09-12 18:58:03,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:03,223 INFO L474 AbstractCegarLoop]: Abstraction has 863 states and 1236 transitions. [2024-09-12 18:58:03,223 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 18:58:03,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:03,223 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1236 transitions. [2024-09-12 18:58:03,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 18:58:03,223 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:03,223 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 18:58:03,234 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 18:58:03,424 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 18:58:03,424 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:03,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:03,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1640037024, now seen corresponding path program 1 times [2024-09-12 18:58:03,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:03,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168748890] [2024-09-12 18:58:03,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:03,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:03,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1190245453] [2024-09-12 18:58:03,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:03,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:03,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:03,435 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 18:58:03,436 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 18:58:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:03,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:58:03,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:03,589 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 18:58:03,589 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:58:03,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:03,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168748890] [2024-09-12 18:58:03,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:03,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190245453] [2024-09-12 18:58:03,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190245453] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:03,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:03,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:58:03,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795194494] [2024-09-12 18:58:03,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:03,590 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:58:03,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:03,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:58:03,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:58:03,591 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 18:58:04,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:04,353 INFO L93 Difference]: Finished difference Result 898 states and 1260 transitions. [2024-09-12 18:58:04,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:58:04,353 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 18:58:04,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:04,356 INFO L225 Difference]: With dead ends: 898 [2024-09-12 18:58:04,357 INFO L226 Difference]: Without dead ends: 897 [2024-09-12 18:58:04,357 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 18:58:04,357 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 18:58:04,357 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 18:58:04,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2024-09-12 18:58:04,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 863. [2024-09-12 18:58:04,692 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 18:58:04,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1228 transitions. [2024-09-12 18:58:04,694 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1228 transitions. Word has length 78 [2024-09-12 18:58:04,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:04,694 INFO L474 AbstractCegarLoop]: Abstraction has 863 states and 1228 transitions. [2024-09-12 18:58:04,694 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 18:58:04,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:04,694 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1228 transitions. [2024-09-12 18:58:04,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-09-12 18:58:04,695 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:04,695 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 18:58:04,706 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 18:58:04,895 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 18:58:04,895 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:04,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:04,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1434056298, now seen corresponding path program 1 times [2024-09-12 18:58:04,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:04,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114692313] [2024-09-12 18:58:04,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:04,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:04,970 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:04,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:04,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:04,974 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:04,975 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:58:04,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:04,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:58:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:04,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 18:58:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:04,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 18:58:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:04,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 18:58:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:04,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:58:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:04,986 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 18:58:04,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:04,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114692313] [2024-09-12 18:58:04,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114692313] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:04,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864063745] [2024-09-12 18:58:04,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:04,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:04,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:04,989 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 18:58:04,990 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 18:58:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:05,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:58:05,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:05,096 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 18:58:05,096 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:05,216 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 18:58:05,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864063745] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:58:05,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:58:05,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-09-12 18:58:05,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633920362] [2024-09-12 18:58:05,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:05,217 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:58:05,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:05,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:58:05,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:58:05,218 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 18:58:06,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:06,917 INFO L93 Difference]: Finished difference Result 965 states and 1267 transitions. [2024-09-12 18:58:06,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:58:06,917 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 18:58:06,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:06,920 INFO L225 Difference]: With dead ends: 965 [2024-09-12 18:58:06,920 INFO L226 Difference]: Without dead ends: 963 [2024-09-12 18:58:06,920 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 18:58:06,921 INFO L434 NwaCegarLoop]: 121 mSDtfsCounter, 934 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:06,921 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 784 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 18:58:06,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2024-09-12 18:58:07,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 866. [2024-09-12 18:58:07,260 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 18:58:07,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1222 transitions. [2024-09-12 18:58:07,263 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1222 transitions. Word has length 84 [2024-09-12 18:58:07,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:07,263 INFO L474 AbstractCegarLoop]: Abstraction has 866 states and 1222 transitions. [2024-09-12 18:58:07,263 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 18:58:07,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:07,264 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1222 transitions. [2024-09-12 18:58:07,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-09-12 18:58:07,264 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:07,264 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 18:58:07,280 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 18:58:07,465 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 18:58:07,465 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:07,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:07,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1506072148, now seen corresponding path program 1 times [2024-09-12 18:58:07,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:07,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440216750] [2024-09-12 18:58:07,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:07,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:07,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:07,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:07,528 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:07,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:07,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:58:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:07,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:58:07,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:07,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 18:58:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:07,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 18:58:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:07,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 18:58:07,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:07,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:58:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:07,543 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 18:58:07,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:07,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440216750] [2024-09-12 18:58:07,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440216750] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:07,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:07,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:58:07,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108669797] [2024-09-12 18:58:07,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:07,544 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:58:07,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:07,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:58:07,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:58:07,547 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 18:58:08,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:08,252 INFO L93 Difference]: Finished difference Result 907 states and 1248 transitions. [2024-09-12 18:58:08,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:58:08,253 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 18:58:08,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:08,256 INFO L225 Difference]: With dead ends: 907 [2024-09-12 18:58:08,256 INFO L226 Difference]: Without dead ends: 905 [2024-09-12 18:58:08,256 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 18:58:08,257 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, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:08,257 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 414 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:58:08,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-09-12 18:58:08,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 878. [2024-09-12 18:58:08,611 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 18:58:08,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1224 transitions. [2024-09-12 18:58:08,613 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1224 transitions. Word has length 85 [2024-09-12 18:58:08,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:08,613 INFO L474 AbstractCegarLoop]: Abstraction has 878 states and 1224 transitions. [2024-09-12 18:58:08,613 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 18:58:08,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:08,613 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1224 transitions. [2024-09-12 18:58:08,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-09-12 18:58:08,614 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:08,614 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 18:58:08,614 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-09-12 18:58:08,614 INFO L399 AbstractCegarLoop]: === Iteration 53 === Targeting mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:08,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:08,614 INFO L85 PathProgramCache]: Analyzing trace with hash 459061484, now seen corresponding path program 1 times [2024-09-12 18:58:08,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:08,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779948211] [2024-09-12 18:58:08,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:08,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:08,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1803991015] [2024-09-12 18:58:08,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:08,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:08,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:08,626 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 18:58:08,627 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 18:58:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:08,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:58:08,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:08,850 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 18:58:08,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:58:08,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:08,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779948211] [2024-09-12 18:58:08,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:08,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803991015] [2024-09-12 18:58:08,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803991015] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:08,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:08,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:58:08,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051653558] [2024-09-12 18:58:08,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:08,851 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:58:08,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:08,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:58:08,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:58:08,851 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 18:58:09,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:09,446 INFO L93 Difference]: Finished difference Result 903 states and 1231 transitions. [2024-09-12 18:58:09,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:58:09,446 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 18:58:09,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:09,449 INFO L225 Difference]: With dead ends: 903 [2024-09-12 18:58:09,449 INFO L226 Difference]: Without dead ends: 900 [2024-09-12 18:58:09,449 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 18:58:09,449 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, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:09,450 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 369 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:58:09,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2024-09-12 18:58:09,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 878. [2024-09-12 18:58:09,817 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 18:58:09,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1220 transitions. [2024-09-12 18:58:09,819 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1220 transitions. Word has length 85 [2024-09-12 18:58:09,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:09,819 INFO L474 AbstractCegarLoop]: Abstraction has 878 states and 1220 transitions. [2024-09-12 18:58:09,819 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 18:58:09,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:09,819 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1220 transitions. [2024-09-12 18:58:09,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-09-12 18:58:09,820 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:09,820 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 18:58:09,831 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 18:58:10,020 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 18:58:10,020 INFO L399 AbstractCegarLoop]: === Iteration 54 === Targeting mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:10,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:10,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1346004286, now seen corresponding path program 1 times [2024-09-12 18:58:10,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:10,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578464500] [2024-09-12 18:58:10,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:10,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:10,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [101847356] [2024-09-12 18:58:10,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:10,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:10,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:10,034 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 18:58:10,037 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 18:58:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:10,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:58:10,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:10,214 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 18:58:10,214 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:10,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:10,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578464500] [2024-09-12 18:58:10,539 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:10,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101847356] [2024-09-12 18:58:10,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101847356] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:10,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:58:10,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 18:58:10,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173224042] [2024-09-12 18:58:10,539 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:10,540 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:58:10,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:10,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:58:10,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:58:10,540 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 18:58:11,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:11,314 INFO L93 Difference]: Finished difference Result 982 states and 1330 transitions. [2024-09-12 18:58:11,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:58:11,314 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 18:58:11,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:11,317 INFO L225 Difference]: With dead ends: 982 [2024-09-12 18:58:11,317 INFO L226 Difference]: Without dead ends: 981 [2024-09-12 18:58:11,317 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 18:58:11,318 INFO L434 NwaCegarLoop]: 111 mSDtfsCounter, 187 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 18:58:11,318 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 18:58:11,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2024-09-12 18:58:11,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 887. [2024-09-12 18:58:11,668 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 18:58:11,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1230 transitions. [2024-09-12 18:58:11,670 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1230 transitions. Word has length 86 [2024-09-12 18:58:11,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:11,670 INFO L474 AbstractCegarLoop]: Abstraction has 887 states and 1230 transitions. [2024-09-12 18:58:11,670 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 18:58:11,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:11,670 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1230 transitions. [2024-09-12 18:58:11,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-09-12 18:58:11,671 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:11,671 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 18:58:11,682 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 18:58:11,871 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 18:58:11,871 INFO L399 AbstractCegarLoop]: === Iteration 55 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:11,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:11,872 INFO L85 PathProgramCache]: Analyzing trace with hash 2128112795, now seen corresponding path program 1 times [2024-09-12 18:58:11,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:11,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270546137] [2024-09-12 18:58:11,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:11,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:11,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:11,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:11,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:11,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:58:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:11,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:58:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:11,945 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 18:58:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:11,947 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 18:58:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:11,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 18:58:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:11,950 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:58:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:11,952 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 18:58:11,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:11,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270546137] [2024-09-12 18:58:11,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270546137] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:11,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606816618] [2024-09-12 18:58:11,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:11,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:11,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:11,955 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 18:58:11,958 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 18:58:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:12,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:58:12,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:12,084 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 18:58:12,084 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:12,238 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 18:58:12,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606816618] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:58:12,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:58:12,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 15 [2024-09-12 18:58:12,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132622398] [2024-09-12 18:58:12,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:12,239 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:58:12,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:12,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:58:12,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:58:12,241 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 18:58:13,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:13,489 INFO L93 Difference]: Finished difference Result 908 states and 1239 transitions. [2024-09-12 18:58:13,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 18:58:13,490 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 18:58:13,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:13,492 INFO L225 Difference]: With dead ends: 908 [2024-09-12 18:58:13,492 INFO L226 Difference]: Without dead ends: 905 [2024-09-12 18:58:13,492 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 18:58:13,492 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 727 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:13,493 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 428 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:58:13,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-09-12 18:58:13,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 873. [2024-09-12 18:58:13,844 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 18:58:13,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1200 transitions. [2024-09-12 18:58:13,846 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1200 transitions. Word has length 88 [2024-09-12 18:58:13,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:13,846 INFO L474 AbstractCegarLoop]: Abstraction has 873 states and 1200 transitions. [2024-09-12 18:58:13,846 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 18:58:13,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:13,846 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1200 transitions. [2024-09-12 18:58:13,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-09-12 18:58:13,847 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:13,847 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 18:58:13,858 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-09-12 18:58:14,047 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 18:58:14,048 INFO L399 AbstractCegarLoop]: === Iteration 56 === Targeting mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:14,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:14,048 INFO L85 PathProgramCache]: Analyzing trace with hash 724968256, now seen corresponding path program 1 times [2024-09-12 18:58:14,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:14,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549792607] [2024-09-12 18:58:14,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:14,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:14,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1225101203] [2024-09-12 18:58:14,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:14,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:14,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:14,060 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 18:58:14,062 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 18:58:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:14,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:58:14,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:14,326 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 18:58:14,326 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:58:14,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:14,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549792607] [2024-09-12 18:58:14,326 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:14,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225101203] [2024-09-12 18:58:14,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225101203] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:14,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:14,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:58:14,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913605607] [2024-09-12 18:58:14,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:14,327 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:58:14,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:14,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:58:14,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:58:14,327 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 18:58:15,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:15,190 INFO L93 Difference]: Finished difference Result 895 states and 1206 transitions. [2024-09-12 18:58:15,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:58:15,190 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 18:58:15,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:15,192 INFO L225 Difference]: With dead ends: 895 [2024-09-12 18:58:15,192 INFO L226 Difference]: Without dead ends: 894 [2024-09-12 18:58:15,192 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 18:58:15,193 INFO L434 NwaCegarLoop]: 135 mSDtfsCounter, 81 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 18:58:15,193 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 18:58:15,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2024-09-12 18:58:15,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 873. [2024-09-12 18:58:15,546 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 18:58:15,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1199 transitions. [2024-09-12 18:58:15,548 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1199 transitions. Word has length 88 [2024-09-12 18:58:15,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:15,548 INFO L474 AbstractCegarLoop]: Abstraction has 873 states and 1199 transitions. [2024-09-12 18:58:15,548 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 18:58:15,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:15,548 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1199 transitions. [2024-09-12 18:58:15,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-09-12 18:58:15,549 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:15,549 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 18:58:15,561 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-09-12 18:58:15,751 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 18:58:15,751 INFO L399 AbstractCegarLoop]: === Iteration 57 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:15,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:15,752 INFO L85 PathProgramCache]: Analyzing trace with hash 825882210, now seen corresponding path program 1 times [2024-09-12 18:58:15,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:15,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542053202] [2024-09-12 18:58:15,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:15,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:15,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [285018010] [2024-09-12 18:58:15,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:15,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:15,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:15,770 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 18:58:15,772 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 18:58:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:15,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:58:15,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:15,982 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 18:58:15,983 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:16,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:16,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542053202] [2024-09-12 18:58:16,034 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:16,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285018010] [2024-09-12 18:58:16,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285018010] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:16,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:58:16,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:58:16,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380557665] [2024-09-12 18:58:16,035 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:16,035 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:58:16,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:16,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:58:16,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:58:16,035 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 18:58:16,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:16,884 INFO L93 Difference]: Finished difference Result 933 states and 1241 transitions. [2024-09-12 18:58:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:58:16,885 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 18:58:16,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:16,887 INFO L225 Difference]: With dead ends: 933 [2024-09-12 18:58:16,887 INFO L226 Difference]: Without dead ends: 930 [2024-09-12 18:58:16,887 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:58:16,887 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, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:16,888 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 685 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:58:16,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2024-09-12 18:58:17,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 875. [2024-09-12 18:58:17,243 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 18:58:17,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1194 transitions. [2024-09-12 18:58:17,245 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1194 transitions. Word has length 94 [2024-09-12 18:58:17,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:17,246 INFO L474 AbstractCegarLoop]: Abstraction has 875 states and 1194 transitions. [2024-09-12 18:58:17,246 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 18:58:17,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:17,246 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1194 transitions. [2024-09-12 18:58:17,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-09-12 18:58:17,247 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:17,247 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 18:58:17,261 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-09-12 18:58:17,447 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 18:58:17,448 INFO L399 AbstractCegarLoop]: === Iteration 58 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:17,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:17,448 INFO L85 PathProgramCache]: Analyzing trace with hash -167455104, now seen corresponding path program 1 times [2024-09-12 18:58:17,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:17,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068373159] [2024-09-12 18:58:17,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:17,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:17,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [48080602] [2024-09-12 18:58:17,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:17,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:17,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:17,462 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 18:58:17,464 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 18:58:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:17,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:58:17,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:17,686 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 18:58:17,686 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:17,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:17,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068373159] [2024-09-12 18:58:17,960 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:17,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48080602] [2024-09-12 18:58:17,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48080602] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:17,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:58:17,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:58:17,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907061484] [2024-09-12 18:58:17,961 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:17,961 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:58:17,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:17,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:58:17,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:58:17,962 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 18:58:18,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:18,961 INFO L93 Difference]: Finished difference Result 1104 states and 1470 transitions. [2024-09-12 18:58:18,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:58:18,961 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 18:58:18,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:18,963 INFO L225 Difference]: With dead ends: 1104 [2024-09-12 18:58:18,963 INFO L226 Difference]: Without dead ends: 1103 [2024-09-12 18:58:18,964 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:58:18,964 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 18:58:18,964 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 18:58:18,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2024-09-12 18:58:19,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 885. [2024-09-12 18:58:19,339 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 18:58:19,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1206 transitions. [2024-09-12 18:58:19,341 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1206 transitions. Word has length 95 [2024-09-12 18:58:19,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:19,341 INFO L474 AbstractCegarLoop]: Abstraction has 885 states and 1206 transitions. [2024-09-12 18:58:19,341 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 18:58:19,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:19,341 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1206 transitions. [2024-09-12 18:58:19,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-09-12 18:58:19,342 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:19,342 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 18:58:19,354 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 18:58:19,542 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 18:58:19,543 INFO L399 AbstractCegarLoop]: === Iteration 59 === Targeting mainErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:19,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:19,543 INFO L85 PathProgramCache]: Analyzing trace with hash 468204500, now seen corresponding path program 1 times [2024-09-12 18:58:19,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:19,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428831872] [2024-09-12 18:58:19,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:19,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:19,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [505285362] [2024-09-12 18:58:19,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:19,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:19,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:19,556 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 18:58:19,557 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 18:58:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:19,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-12 18:58:19,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:19,999 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 18:58:19,999 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:20,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:20,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428831872] [2024-09-12 18:58:20,944 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:20,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505285362] [2024-09-12 18:58:20,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505285362] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:20,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:58:20,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:58:20,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038492365] [2024-09-12 18:58:20,944 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:20,944 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:58:20,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:20,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:58:20,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:58:20,945 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 18:58:22,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:22,347 INFO L93 Difference]: Finished difference Result 1128 states and 1515 transitions. [2024-09-12 18:58:22,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:58:22,348 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 18:58:22,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:22,351 INFO L225 Difference]: With dead ends: 1128 [2024-09-12 18:58:22,351 INFO L226 Difference]: Without dead ends: 1126 [2024-09-12 18:58:22,352 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:58:22,352 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 18:58:22,352 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 18:58:22,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2024-09-12 18:58:22,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 895. [2024-09-12 18:58:22,786 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 18:58:22,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1217 transitions. [2024-09-12 18:58:22,788 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1217 transitions. Word has length 95 [2024-09-12 18:58:22,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:22,788 INFO L474 AbstractCegarLoop]: Abstraction has 895 states and 1217 transitions. [2024-09-12 18:58:22,788 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 18:58:22,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:22,788 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1217 transitions. [2024-09-12 18:58:22,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-09-12 18:58:22,789 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:22,789 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 18:58:22,800 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 18:58:22,989 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 18:58:22,989 INFO L399 AbstractCegarLoop]: === Iteration 60 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:22,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:22,990 INFO L85 PathProgramCache]: Analyzing trace with hash -896140764, now seen corresponding path program 1 times [2024-09-12 18:58:22,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:22,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690816591] [2024-09-12 18:58:22,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:22,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:22,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:23,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:23,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:23,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:23,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:58:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:23,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:58:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:23,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 18:58:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:23,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 18:58:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:23,113 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 18:58:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:23,114 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:58:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:23,116 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 18:58:23,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:23,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690816591] [2024-09-12 18:58:23,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690816591] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:23,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44339257] [2024-09-12 18:58:23,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:23,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:23,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:23,119 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 18:58:23,122 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 18:58:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:23,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:58:23,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:23,385 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 18:58:23,386 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:25,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44339257] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:25,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:58:25,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-09-12 18:58:25,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047995652] [2024-09-12 18:58:25,126 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:25,126 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:58:25,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:25,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:58:25,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=117, Unknown=1, NotChecked=0, Total=156 [2024-09-12 18:58:25,127 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 18:58:26,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:26,687 INFO L93 Difference]: Finished difference Result 1127 states and 1510 transitions. [2024-09-12 18:58:26,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:58:26,688 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 18:58:26,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:26,691 INFO L225 Difference]: With dead ends: 1127 [2024-09-12 18:58:26,691 INFO L226 Difference]: Without dead ends: 1126 [2024-09-12 18:58:26,691 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=92, Invalid=249, Unknown=1, NotChecked=0, Total=342 [2024-09-12 18:58:26,692 INFO L434 NwaCegarLoop]: 145 mSDtfsCounter, 317 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:26,692 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 846 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:58:26,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2024-09-12 18:58:27,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1037. [2024-09-12 18:58:27,143 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 18:58:27,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1458 transitions. [2024-09-12 18:58:27,146 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1458 transitions. Word has length 96 [2024-09-12 18:58:27,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:27,146 INFO L474 AbstractCegarLoop]: Abstraction has 1037 states and 1458 transitions. [2024-09-12 18:58:27,146 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 18:58:27,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:27,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1458 transitions. [2024-09-12 18:58:27,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-09-12 18:58:27,147 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:27,147 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 18:58:27,163 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 18:58:27,348 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 18:58:27,348 INFO L399 AbstractCegarLoop]: === Iteration 61 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:27,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:27,348 INFO L85 PathProgramCache]: Analyzing trace with hash -2010559742, now seen corresponding path program 1 times [2024-09-12 18:58:27,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:27,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125485350] [2024-09-12 18:58:27,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:27,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:27,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [943514131] [2024-09-12 18:58:27,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:27,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:27,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:27,360 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 18:58:27,362 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 18:58:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:27,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:58:27,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:27,715 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 18:58:27,716 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:31,958 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 18:58:31,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:31,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125485350] [2024-09-12 18:58:31,958 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:31,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943514131] [2024-09-12 18:58:31,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943514131] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:58:31,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:58:31,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-09-12 18:58:31,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391890290] [2024-09-12 18:58:31,958 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:31,959 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:58:31,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:31,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:58:31,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=182, Unknown=1, NotChecked=0, Total=240 [2024-09-12 18:58:31,959 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 18:58:34,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:34,016 INFO L93 Difference]: Finished difference Result 1484 states and 2023 transitions. [2024-09-12 18:58:34,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:58:34,016 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 18:58:34,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:34,019 INFO L225 Difference]: With dead ends: 1484 [2024-09-12 18:58:34,020 INFO L226 Difference]: Without dead ends: 1483 [2024-09-12 18:58:34,020 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 18:58:34,020 INFO L434 NwaCegarLoop]: 159 mSDtfsCounter, 679 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:34,020 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1319 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 18:58:34,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-09-12 18:58:34,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1143. [2024-09-12 18:58:34,538 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 18:58:34,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1608 transitions. [2024-09-12 18:58:34,541 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1608 transitions. Word has length 97 [2024-09-12 18:58:34,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:34,541 INFO L474 AbstractCegarLoop]: Abstraction has 1143 states and 1608 transitions. [2024-09-12 18:58:34,541 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 18:58:34,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:34,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1608 transitions. [2024-09-12 18:58:34,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 18:58:34,542 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:34,542 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 18:58:34,554 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2024-09-12 18:58:34,743 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 18:58:34,743 INFO L399 AbstractCegarLoop]: === Iteration 62 === Targeting mainErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:34,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:34,743 INFO L85 PathProgramCache]: Analyzing trace with hash 861339928, now seen corresponding path program 1 times [2024-09-12 18:58:34,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:34,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90061071] [2024-09-12 18:58:34,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:34,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:34,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [46351310] [2024-09-12 18:58:34,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:34,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:34,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:34,759 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 18:58:34,760 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 18:58:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:34,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 18:58:34,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:35,200 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 18:58:35,201 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:36,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:36,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90061071] [2024-09-12 18:58:36,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:36,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46351310] [2024-09-12 18:58:36,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46351310] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:36,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:58:36,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:58:36,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633460585] [2024-09-12 18:58:36,638 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:36,638 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:58:36,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:36,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:58:36,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:58:36,639 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 18:58:38,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:38,353 INFO L93 Difference]: Finished difference Result 1434 states and 1994 transitions. [2024-09-12 18:58:38,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:58:38,354 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 18:58:38,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:38,357 INFO L225 Difference]: With dead ends: 1434 [2024-09-12 18:58:38,357 INFO L226 Difference]: Without dead ends: 1432 [2024-09-12 18:58:38,357 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:58:38,357 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, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:38,357 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 641 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:58:38,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2024-09-12 18:58:38,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1147. [2024-09-12 18:58:38,874 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 18:58:38,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1612 transitions. [2024-09-12 18:58:38,877 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1612 transitions. Word has length 99 [2024-09-12 18:58:38,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:38,877 INFO L474 AbstractCegarLoop]: Abstraction has 1147 states and 1612 transitions. [2024-09-12 18:58:38,877 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 18:58:38,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:38,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1612 transitions. [2024-09-12 18:58:38,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-09-12 18:58:38,878 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:38,878 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 18:58:38,895 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 18:58:39,078 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 18:58:39,078 INFO L399 AbstractCegarLoop]: === Iteration 63 === Targeting mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:39,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:39,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1028802984, now seen corresponding path program 1 times [2024-09-12 18:58:39,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:39,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865070473] [2024-09-12 18:58:39,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:39,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:39,238 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:39,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:39,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:39,242 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:58:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:39,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:58:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:39,244 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 18:58:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:39,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 18:58:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:39,248 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 18:58:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:39,250 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:58:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:39,251 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 18:58:39,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:39,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865070473] [2024-09-12 18:58:39,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865070473] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:39,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933877543] [2024-09-12 18:58:39,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:39,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:39,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:39,253 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 18:58:39,255 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 18:58:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:39,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:58:39,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:39,452 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 18:58:39,452 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:40,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933877543] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:40,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:58:40,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-09-12 18:58:40,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630996103] [2024-09-12 18:58:40,968 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:40,968 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:58:40,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:40,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:58:40,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=117, Unknown=1, NotChecked=0, Total=156 [2024-09-12 18:58:40,969 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 18:58:41,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:41,966 INFO L93 Difference]: Finished difference Result 1194 states and 1631 transitions. [2024-09-12 18:58:41,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:58:41,966 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 18:58:41,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:41,969 INFO L225 Difference]: With dead ends: 1194 [2024-09-12 18:58:41,969 INFO L226 Difference]: Without dead ends: 1193 [2024-09-12 18:58:41,969 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=45, Invalid=136, Unknown=1, NotChecked=0, Total=182 [2024-09-12 18:58:41,969 INFO L434 NwaCegarLoop]: 179 mSDtfsCounter, 94 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:41,969 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1074 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:58:41,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2024-09-12 18:58:42,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1147. [2024-09-12 18:58:42,554 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 18:58:42,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1610 transitions. [2024-09-12 18:58:42,556 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1610 transitions. Word has length 100 [2024-09-12 18:58:42,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:42,556 INFO L474 AbstractCegarLoop]: Abstraction has 1147 states and 1610 transitions. [2024-09-12 18:58:42,557 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 18:58:42,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:42,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1610 transitions. [2024-09-12 18:58:42,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-09-12 18:58:42,557 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:42,557 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 18:58:42,569 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2024-09-12 18:58:42,758 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 18:58:42,758 INFO L399 AbstractCegarLoop]: === Iteration 64 === Targeting mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:42,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:42,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1828121606, now seen corresponding path program 1 times [2024-09-12 18:58:42,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:42,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756811605] [2024-09-12 18:58:42,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:42,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:42,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1757363360] [2024-09-12 18:58:42,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:42,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:42,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:42,771 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 18:58:42,773 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 18:58:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:42,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:58:42,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:43,089 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 18:58:43,089 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:43,319 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 18:58:43,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:43,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756811605] [2024-09-12 18:58:43,319 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:43,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757363360] [2024-09-12 18:58:43,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757363360] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:58:43,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:58:43,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2024-09-12 18:58:43,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807867316] [2024-09-12 18:58:43,320 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:43,320 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:58:43,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:43,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:58:43,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:58:43,321 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 18:58:46,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:46,975 INFO L93 Difference]: Finished difference Result 1529 states and 2028 transitions. [2024-09-12 18:58:46,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-12 18:58:46,976 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 18:58:46,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:46,980 INFO L225 Difference]: With dead ends: 1529 [2024-09-12 18:58:46,980 INFO L226 Difference]: Without dead ends: 1528 [2024-09-12 18:58:46,980 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=209, Invalid=603, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:58:46,980 INFO L434 NwaCegarLoop]: 176 mSDtfsCounter, 1300 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:46,981 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1324 Valid, 1440 Invalid, 1505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-09-12 18:58:46,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2024-09-12 18:58:47,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1158. [2024-09-12 18:58:47,642 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 18:58:47,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1627 transitions. [2024-09-12 18:58:47,644 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1627 transitions. Word has length 101 [2024-09-12 18:58:47,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:47,645 INFO L474 AbstractCegarLoop]: Abstraction has 1158 states and 1627 transitions. [2024-09-12 18:58:47,645 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 18:58:47,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:47,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1627 transitions. [2024-09-12 18:58:47,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-09-12 18:58:47,646 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:47,646 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 18:58:47,662 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 18:58:47,846 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 18:58:47,846 INFO L399 AbstractCegarLoop]: === Iteration 65 === Targeting mainErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:47,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:47,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1181011014, now seen corresponding path program 1 times [2024-09-12 18:58:47,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:47,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153113066] [2024-09-12 18:58:47,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:47,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:47,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:47,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1599288280] [2024-09-12 18:58:47,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:47,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:47,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:47,864 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 18:58:47,865 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 18:58:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:47,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:58:47,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:48,438 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 18:58:48,438 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:58,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:58,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153113066] [2024-09-12 18:58:58,340 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:58,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599288280] [2024-09-12 18:58:58,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599288280] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:58,340 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:58:58,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:58:58,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724974006] [2024-09-12 18:58:58,340 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:58,340 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:58:58,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:58,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:58:58,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=209, Unknown=3, NotChecked=0, Total=272 [2024-09-12 18:58:58,341 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 18:59:00,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:59:00,131 INFO L93 Difference]: Finished difference Result 1548 states and 2132 transitions. [2024-09-12 18:59:00,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:59:00,131 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 18:59:00,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:59:00,135 INFO L225 Difference]: With dead ends: 1548 [2024-09-12 18:59:00,135 INFO L226 Difference]: Without dead ends: 1546 [2024-09-12 18:59:00,135 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=125, Invalid=378, Unknown=3, NotChecked=0, Total=506 [2024-09-12 18:59:00,136 INFO L434 NwaCegarLoop]: 114 mSDtfsCounter, 368 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:59:00,136 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 817 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:59:00,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2024-09-12 18:59:00,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1172. [2024-09-12 18:59:00,738 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 18:59:00,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1642 transitions. [2024-09-12 18:59:00,741 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1642 transitions. Word has length 101 [2024-09-12 18:59:00,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:59:00,741 INFO L474 AbstractCegarLoop]: Abstraction has 1172 states and 1642 transitions. [2024-09-12 18:59:00,741 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 18:59:00,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:00,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1642 transitions. [2024-09-12 18:59:00,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-09-12 18:59:00,742 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:59:00,742 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 18:59:00,756 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 18:59:00,942 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 18:59:00,943 INFO L399 AbstractCegarLoop]: === Iteration 66 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:59:00,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:00,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1412635360, now seen corresponding path program 1 times [2024-09-12 18:59:00,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:59:00,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843295464] [2024-09-12 18:59:00,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:00,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:59:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:00,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:59:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:00,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:59:00,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:00,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:59:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:00,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:59:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:00,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:59:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:01,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:59:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:01,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:59:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:01,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:59:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:01,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:59:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:01,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 18:59:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:01,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:59:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:01,010 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 18:59:01,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:59:01,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843295464] [2024-09-12 18:59:01,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843295464] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:59:01,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:59:01,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:59:01,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846736400] [2024-09-12 18:59:01,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:59:01,012 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:59:01,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:59:01,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:59:01,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:59:01,012 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 18:59:01,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:59:01,939 INFO L93 Difference]: Finished difference Result 2183 states and 3085 transitions. [2024-09-12 18:59:01,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:59:01,939 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 18:59:01,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:59:01,943 INFO L225 Difference]: With dead ends: 2183 [2024-09-12 18:59:01,943 INFO L226 Difference]: Without dead ends: 1242 [2024-09-12 18:59:01,945 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 18:59:01,945 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 18:59:01,946 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 18:59:01,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2024-09-12 18:59:02,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1206. [2024-09-12 18:59:02,639 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 18:59:02,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1681 transitions. [2024-09-12 18:59:02,641 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1681 transitions. Word has length 103 [2024-09-12 18:59:02,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:59:02,641 INFO L474 AbstractCegarLoop]: Abstraction has 1206 states and 1681 transitions. [2024-09-12 18:59:02,642 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 18:59:02,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:02,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1681 transitions. [2024-09-12 18:59:02,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-09-12 18:59:02,644 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:59:02,644 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 18:59:02,644 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-09-12 18:59:02,644 INFO L399 AbstractCegarLoop]: === Iteration 67 === Targeting mainErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:59:02,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:02,644 INFO L85 PathProgramCache]: Analyzing trace with hash 2043364431, now seen corresponding path program 1 times [2024-09-12 18:59:02,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:59:02,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435087319] [2024-09-12 18:59:02,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:02,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:59:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:59:02,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1686085896] [2024-09-12 18:59:02,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:02,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:59:02,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:59:02,657 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 18:59:02,658 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 18:59:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:02,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:59:02,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:59:03,358 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 18:59:03,358 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:59:09,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:59:09,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435087319] [2024-09-12 18:59:09,903 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:59:09,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686085896] [2024-09-12 18:59:09,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686085896] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:59:09,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:59:09,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:59:09,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144906896] [2024-09-12 18:59:09,903 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:59:09,903 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:59:09,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:59:09,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:59:09,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=214, Unknown=2, NotChecked=0, Total=272 [2024-09-12 18:59:09,904 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 18:59:11,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:59:11,680 INFO L93 Difference]: Finished difference Result 1446 states and 1993 transitions. [2024-09-12 18:59:11,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:59:11,680 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 18:59:11,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:59:11,684 INFO L225 Difference]: With dead ends: 1446 [2024-09-12 18:59:11,684 INFO L226 Difference]: Without dead ends: 1444 [2024-09-12 18:59:11,684 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=97, Invalid=321, Unknown=2, NotChecked=0, Total=420 [2024-09-12 18:59:11,685 INFO L434 NwaCegarLoop]: 122 mSDtfsCounter, 338 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:59:11,685 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 858 Invalid, 1129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:59:11,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2024-09-12 18:59:12,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1208. [2024-09-12 18:59:12,389 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 18:59:12,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1683 transitions. [2024-09-12 18:59:12,391 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1683 transitions. Word has length 102 [2024-09-12 18:59:12,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:59:12,391 INFO L474 AbstractCegarLoop]: Abstraction has 1208 states and 1683 transitions. [2024-09-12 18:59:12,391 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 18:59:12,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:12,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1683 transitions. [2024-09-12 18:59:12,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-09-12 18:59:12,392 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:59:12,392 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 18:59:12,404 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 18:59:12,593 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 18:59:12,593 INFO L399 AbstractCegarLoop]: === Iteration 68 === Targeting mainErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:59:12,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:12,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1080211876, now seen corresponding path program 1 times [2024-09-12 18:59:12,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:59:12,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263443865] [2024-09-12 18:59:12,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:12,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:59:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:59:12,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [451005041] [2024-09-12 18:59:12,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:12,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:59:12,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:59:12,606 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 18:59:12,607 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 18:59:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:12,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-09-12 18:59:12,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:59:13,601 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 18:59:13,601 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:59:20,431 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 18:59:20,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:59:20,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263443865] [2024-09-12 18:59:20,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:59:20,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451005041] [2024-09-12 18:59:20,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451005041] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:59:20,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:59:20,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-09-12 18:59:20,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567595450] [2024-09-12 18:59:20,431 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:59:20,432 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 18:59:20,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:59:20,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 18:59:20,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:59:20,432 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 18:59:59,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:00:01,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:00:01,290 INFO L93 Difference]: Finished difference Result 1473 states and 2020 transitions. [2024-09-12 19:00:01,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-12 19:00:01,290 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 19:00:01,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:00:01,293 INFO L225 Difference]: With dead ends: 1473 [2024-09-12 19:00:01,293 INFO L226 Difference]: Without dead ends: 1471 [2024-09-12 19:00:01,294 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=489, Invalid=1861, Unknown=2, NotChecked=0, Total=2352 [2024-09-12 19:00:01,294 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 949 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 2614 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 2768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 2614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:00:01,294 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 737 Invalid, 2768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 2614 Invalid, 0 Unknown, 0 Unchecked, 24.1s Time] [2024-09-12 19:00:01,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2024-09-12 19:00:02,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1379. [2024-09-12 19:00:02,198 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 19:00:02,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1930 transitions. [2024-09-12 19:00:02,201 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1930 transitions. Word has length 103 [2024-09-12 19:00:02,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:00:02,201 INFO L474 AbstractCegarLoop]: Abstraction has 1379 states and 1930 transitions. [2024-09-12 19:00:02,201 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 19:00:02,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:00:02,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1930 transitions. [2024-09-12 19:00:02,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-09-12 19:00:02,202 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:00:02,202 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 19:00:02,214 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2024-09-12 19:00:02,402 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 19:00:02,403 INFO L399 AbstractCegarLoop]: === Iteration 69 === Targeting mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:00:02,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:00:02,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1385508874, now seen corresponding path program 1 times [2024-09-12 19:00:02,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:00:02,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188250929] [2024-09-12 19:00:02,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:00:02,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:00:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:00:02,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:00:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:00:02,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:00:02,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:00:02,498 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:00:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:00:02,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:00:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:00:02,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:00:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:00:02,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:00:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:00:02,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 19:00:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:00:02,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 19:00:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:00:02,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 19:00:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:00:02,510 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 19:00:02,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:00:02,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188250929] [2024-09-12 19:00:02,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188250929] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:00:02,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756989327] [2024-09-12 19:00:02,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:00:02,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:00:02,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:00:02,513 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 19:00:02,514 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 19:00:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:00:02,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:00:02,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:00:02,667 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 19:00:02,667 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:00:02,815 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 19:00:02,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756989327] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:00:02,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:00:02,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 8 [2024-09-12 19:00:02,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179195376] [2024-09-12 19:00:02,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:00:02,816 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:00:02,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:00:02,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:00:02,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:00:02,817 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 19:00:04,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:00:04,606 INFO L93 Difference]: Finished difference Result 1969 states and 2738 transitions. [2024-09-12 19:00:04,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 19:00:04,607 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 19:00:04,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:00:04,611 INFO L225 Difference]: With dead ends: 1969 [2024-09-12 19:00:04,611 INFO L226 Difference]: Without dead ends: 1927 [2024-09-12 19:00:04,612 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 225 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:00:04,612 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 19:00:04,612 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 19:00:04,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1927 states. [2024-09-12 19:00:05,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1927 to 1414. [2024-09-12 19:00:05,586 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 19:00:05,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 1978 transitions. [2024-09-12 19:00:05,589 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 1978 transitions. Word has length 104 [2024-09-12 19:00:05,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:00:05,589 INFO L474 AbstractCegarLoop]: Abstraction has 1414 states and 1978 transitions. [2024-09-12 19:00:05,589 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 19:00:05,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:00:05,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 1978 transitions. [2024-09-12 19:00:05,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-09-12 19:00:05,590 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:00:05,590 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 19:00:05,602 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2024-09-12 19:00:05,790 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 19:00:05,790 INFO L399 AbstractCegarLoop]: === Iteration 70 === Targeting mainErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:00:05,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:00:05,791 INFO L85 PathProgramCache]: Analyzing trace with hash 873170417, now seen corresponding path program 1 times [2024-09-12 19:00:05,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:00:05,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968760421] [2024-09-12 19:00:05,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:00:05,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:00:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:00:05,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [90085011] [2024-09-12 19:00:05,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:00:05,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:00:05,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:00:05,803 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 19:00:05,804 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 19:00:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:00:05,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-09-12 19:00:05,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:00:06,740 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 19:00:06,740 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:00:10,910 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 19:00:10,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:00:10,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968760421] [2024-09-12 19:00:10,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:00:10,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90085011] [2024-09-12 19:00:10,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90085011] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:00:10,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:00:10,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-09-12 19:00:10,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258809299] [2024-09-12 19:00:10,911 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:00:10,912 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 19:00:10,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:00:10,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 19:00:10,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2024-09-12 19:00:10,912 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)