./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps5-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/ps5-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 a7db00fa220927f51e1e342e06102a5d28a1c61268049ef86f9068e213c9adb5 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 19:41:16,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:41:16,345 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:41:16,349 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:41:16,349 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:41:16,372 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:41:16,373 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:41:16,374 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:41:16,374 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:41:16,375 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:41:16,375 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:41:16,375 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:41:16,376 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:41:16,378 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:41:16,379 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:41:16,379 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:41:16,379 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:41:16,379 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:41:16,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:41:16,380 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:41:16,380 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:41:16,380 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:41:16,381 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:41:16,381 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:41:16,381 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:41:16,381 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:41:16,381 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:41:16,382 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:41:16,382 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:41:16,382 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:41:16,382 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:41:16,382 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:41:16,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:41:16,383 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:41:16,383 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:41:16,385 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:41:16,386 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:41:16,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:41:16,386 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:41:16,387 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:41:16,387 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:41:16,387 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:41:16,387 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7db00fa220927f51e1e342e06102a5d28a1c61268049ef86f9068e213c9adb5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:41:16,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:41:16,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:41:16,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:41:16,633 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:41:16,633 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:41:16,634 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound50.c [2024-09-12 19:41:17,878 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:41:18,020 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:41:18,021 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound50.c [2024-09-12 19:41:18,033 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/57e038d29/6de6618ed6c545359a7cfa947fe3e5a1/FLAGbbcf375ff [2024-09-12 19:41:18,046 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/57e038d29/6de6618ed6c545359a7cfa947fe3e5a1 [2024-09-12 19:41:18,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:41:18,050 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:41:18,051 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:41:18,051 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:41:18,056 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:41:18,057 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:41:18" (1/1) ... [2024-09-12 19:41:18,058 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@108818b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:18, skipping insertion in model container [2024-09-12 19:41:18,058 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:41:18" (1/1) ... [2024-09-12 19:41:18,075 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:41:18,208 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound50.c[458,471] [2024-09-12 19:41:18,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:41:18,240 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:41:18,250 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound50.c[458,471] [2024-09-12 19:41:18,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:41:18,284 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:41:18,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:18 WrapperNode [2024-09-12 19:41:18,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:41:18,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:41:18,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:41:18,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:41:18,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:18" (1/1) ... [2024-09-12 19:41:18,296 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:18" (1/1) ... [2024-09-12 19:41:18,305 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:41:18,306 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:41:18,307 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:41:18,307 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:41:18,307 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:41:18,315 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:18" (1/1) ... [2024-09-12 19:41:18,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:18" (1/1) ... [2024-09-12 19:41:18,321 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:18" (1/1) ... [2024-09-12 19:41:18,338 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 19:41:18,338 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:18" (1/1) ... [2024-09-12 19:41:18,338 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:18" (1/1) ... [2024-09-12 19:41:18,340 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:18" (1/1) ... [2024-09-12 19:41:18,342 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:18" (1/1) ... [2024-09-12 19:41:18,343 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:18" (1/1) ... [2024-09-12 19:41:18,344 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:18" (1/1) ... [2024-09-12 19:41:18,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:41:18,345 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:41:18,345 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:41:18,345 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:41:18,346 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:18" (1/1) ... [2024-09-12 19:41:18,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:41:18,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:18,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 19:41:18,383 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 19:41:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:41:18,413 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:41:18,413 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:41:18,413 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:41:18,413 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:41:18,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:41:18,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:41:18,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:41:18,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:41:18,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:41:18,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:41:18,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:41:18,461 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:41:18,462 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:41:18,885 INFO L? ?]: Removed 88 outVars from TransFormulas that were not future-live. [2024-09-12 19:41:18,886 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:41:18,915 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:41:18,915 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:41:18,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:41:18 BoogieIcfgContainer [2024-09-12 19:41:18,916 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:41:18,917 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:41:18,917 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:41:18,920 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:41:18,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:41:18" (1/3) ... [2024-09-12 19:41:18,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc1a58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:41:18, skipping insertion in model container [2024-09-12 19:41:18,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:18" (2/3) ... [2024-09-12 19:41:18,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc1a58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:41:18, skipping insertion in model container [2024-09-12 19:41:18,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:41:18" (3/3) ... [2024-09-12 19:41:18,922 INFO L112 eAbstractionObserver]: Analyzing ICFG ps5-ll_valuebound50.c [2024-09-12 19:41:18,935 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:41:18,935 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 85 error locations. [2024-09-12 19:41:18,990 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:41:18,995 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;@37f59dbc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:41:18,996 INFO L337 AbstractCegarLoop]: Starting to check reachability of 85 error locations. [2024-09-12 19:41:18,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 195 states, 98 states have (on average 1.9183673469387754) internal successors, (188), 183 states have internal predecessors, (188), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:41:19,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 19:41:19,004 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:19,005 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:19,005 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:19,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:19,009 INFO L85 PathProgramCache]: Analyzing trace with hash 788119831, now seen corresponding path program 1 times [2024-09-12 19:41:19,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:19,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398648106] [2024-09-12 19:41:19,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:19,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:19,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:19,100 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:19,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:19,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:41:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:19,124 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:19,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:19,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398648106] [2024-09-12 19:41:19,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398648106] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:19,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:19,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:41:19,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268523056] [2024-09-12 19:41:19,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:19,132 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:41:19,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:19,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:41:19,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:41:19,151 INFO L87 Difference]: Start difference. First operand has 195 states, 98 states have (on average 1.9183673469387754) internal successors, (188), 183 states have internal predecessors, (188), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:41:19,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:19,192 INFO L93 Difference]: Finished difference Result 371 states and 402 transitions. [2024-09-12 19:41:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:41:19,195 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 18 [2024-09-12 19:41:19,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:19,202 INFO L225 Difference]: With dead ends: 371 [2024-09-12 19:41:19,202 INFO L226 Difference]: Without dead ends: 178 [2024-09-12 19:41:19,205 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:41:19,207 INFO L434 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:19,209 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 183 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:41:19,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-09-12 19:41:19,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2024-09-12 19:41:19,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 96 states have (on average 1.7604166666666667) internal successors, (169), 168 states have internal predecessors, (169), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:41:19,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 181 transitions. [2024-09-12 19:41:19,260 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 181 transitions. Word has length 18 [2024-09-12 19:41:19,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:19,260 INFO L474 AbstractCegarLoop]: Abstraction has 178 states and 181 transitions. [2024-09-12 19:41:19,260 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:41:19,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:19,261 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 181 transitions. [2024-09-12 19:41:19,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 19:41:19,265 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:19,265 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:19,265 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:41:19,265 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:19,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:19,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1546442672, now seen corresponding path program 1 times [2024-09-12 19:41:19,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:19,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357737792] [2024-09-12 19:41:19,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:19,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:19,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:19,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:19,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:41:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:19,408 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:19,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:19,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357737792] [2024-09-12 19:41:19,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357737792] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:19,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:19,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:41:19,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650302466] [2024-09-12 19:41:19,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:19,410 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:41:19,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:19,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:41:19,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:41:19,411 INFO L87 Difference]: Start difference. First operand 178 states and 181 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:41:19,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:19,798 INFO L93 Difference]: Finished difference Result 316 states and 330 transitions. [2024-09-12 19:41:19,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:41:19,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2024-09-12 19:41:19,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:19,802 INFO L225 Difference]: With dead ends: 316 [2024-09-12 19:41:19,803 INFO L226 Difference]: Without dead ends: 265 [2024-09-12 19:41:19,804 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:41:19,806 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 83 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:19,806 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 137 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:41:19,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-09-12 19:41:19,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 258. [2024-09-12 19:41:19,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 174 states have (on average 1.5057471264367817) internal successors, (262), 246 states have internal predecessors, (262), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:41:19,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 278 transitions. [2024-09-12 19:41:19,831 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 278 transitions. Word has length 18 [2024-09-12 19:41:19,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:19,832 INFO L474 AbstractCegarLoop]: Abstraction has 258 states and 278 transitions. [2024-09-12 19:41:19,833 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:41:19,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:19,837 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 278 transitions. [2024-09-12 19:41:19,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 19:41:19,838 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:19,838 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:19,838 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 19:41:19,838 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:19,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:19,839 INFO L85 PathProgramCache]: Analyzing trace with hash 541681420, now seen corresponding path program 1 times [2024-09-12 19:41:19,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:19,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113040390] [2024-09-12 19:41:19,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:19,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:19,934 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:19,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:19,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:41:19,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:19,946 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:19,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:19,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113040390] [2024-09-12 19:41:19,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113040390] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:19,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:19,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:41:19,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998511969] [2024-09-12 19:41:19,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:19,947 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:41:19,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:19,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:41:19,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:41:19,950 INFO L87 Difference]: Start difference. First operand 258 states and 278 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:41:20,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:20,045 INFO L93 Difference]: Finished difference Result 278 states and 293 transitions. [2024-09-12 19:41:20,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:41:20,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2024-09-12 19:41:20,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:20,048 INFO L225 Difference]: With dead ends: 278 [2024-09-12 19:41:20,049 INFO L226 Difference]: Without dead ends: 273 [2024-09-12 19:41:20,049 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:41:20,050 INFO L434 NwaCegarLoop]: 157 mSDtfsCounter, 63 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:20,050 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 307 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:41:20,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-09-12 19:41:20,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 265. [2024-09-12 19:41:20,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 181 states have (on average 1.4861878453038675) internal successors, (269), 253 states have internal predecessors, (269), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:41:20,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 285 transitions. [2024-09-12 19:41:20,070 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 285 transitions. Word has length 46 [2024-09-12 19:41:20,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:20,070 INFO L474 AbstractCegarLoop]: Abstraction has 265 states and 285 transitions. [2024-09-12 19:41:20,071 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:41:20,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:20,071 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 285 transitions. [2024-09-12 19:41:20,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 19:41:20,072 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:20,072 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:20,072 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 19:41:20,072 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:20,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:20,072 INFO L85 PathProgramCache]: Analyzing trace with hash 864805486, now seen corresponding path program 1 times [2024-09-12 19:41:20,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:20,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102065526] [2024-09-12 19:41:20,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:20,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:20,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:20,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:20,205 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:41:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:20,209 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:20,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:20,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102065526] [2024-09-12 19:41:20,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102065526] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:20,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:20,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:41:20,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468370709] [2024-09-12 19:41:20,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:20,212 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:41:20,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:20,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:41:20,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:41:20,213 INFO L87 Difference]: Start difference. First operand 265 states and 285 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:41:20,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:20,428 INFO L93 Difference]: Finished difference Result 277 states and 288 transitions. [2024-09-12 19:41:20,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:41:20,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2024-09-12 19:41:20,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:20,430 INFO L225 Difference]: With dead ends: 277 [2024-09-12 19:41:20,430 INFO L226 Difference]: Without dead ends: 272 [2024-09-12 19:41:20,431 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:41:20,432 INFO L434 NwaCegarLoop]: 90 mSDtfsCounter, 143 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:20,433 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 240 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:41:20,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-09-12 19:41:20,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 265. [2024-09-12 19:41:20,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 181 states have (on average 1.4585635359116023) internal successors, (264), 253 states have internal predecessors, (264), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:41:20,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 280 transitions. [2024-09-12 19:41:20,464 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 280 transitions. Word has length 48 [2024-09-12 19:41:20,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:20,465 INFO L474 AbstractCegarLoop]: Abstraction has 265 states and 280 transitions. [2024-09-12 19:41:20,465 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:41:20,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:20,466 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 280 transitions. [2024-09-12 19:41:20,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 19:41:20,467 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:20,468 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:20,468 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 19:41:20,468 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:20,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:20,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1039166409, now seen corresponding path program 1 times [2024-09-12 19:41:20,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:20,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332275814] [2024-09-12 19:41:20,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:20,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:20,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:20,535 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:20,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:20,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:41:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:20,545 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:20,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:20,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332275814] [2024-09-12 19:41:20,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332275814] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:20,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:20,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:41:20,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432034897] [2024-09-12 19:41:20,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:20,547 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:41:20,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:20,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:41:20,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:41:20,549 INFO L87 Difference]: Start difference. First operand 265 states and 280 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:41:20,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:20,713 INFO L93 Difference]: Finished difference Result 276 states and 283 transitions. [2024-09-12 19:41:20,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:41:20,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 49 [2024-09-12 19:41:20,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:20,716 INFO L225 Difference]: With dead ends: 276 [2024-09-12 19:41:20,716 INFO L226 Difference]: Without dead ends: 272 [2024-09-12 19:41:20,716 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:41:20,717 INFO L434 NwaCegarLoop]: 103 mSDtfsCounter, 135 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:20,717 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 253 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:41:20,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-09-12 19:41:20,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 265. [2024-09-12 19:41:20,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 181 states have (on average 1.4364640883977902) internal successors, (260), 253 states have internal predecessors, (260), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:41:20,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 276 transitions. [2024-09-12 19:41:20,758 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 276 transitions. Word has length 49 [2024-09-12 19:41:20,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:20,758 INFO L474 AbstractCegarLoop]: Abstraction has 265 states and 276 transitions. [2024-09-12 19:41:20,759 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:41:20,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:20,760 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 276 transitions. [2024-09-12 19:41:20,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 19:41:20,760 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:20,760 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:20,760 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 19:41:20,761 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:20,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:20,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1557113381, now seen corresponding path program 1 times [2024-09-12 19:41:20,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:20,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123275365] [2024-09-12 19:41:20,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:20,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:20,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859724806] [2024-09-12 19:41:20,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:20,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:20,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:20,780 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:41:20,781 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 19:41:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:20,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:41:20,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:20,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:20,976 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:41:20,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:20,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123275365] [2024-09-12 19:41:20,977 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:20,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859724806] [2024-09-12 19:41:20,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859724806] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:20,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:20,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:41:20,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723956773] [2024-09-12 19:41:20,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:20,978 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:41:20,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:20,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:41:20,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:41:20,979 INFO L87 Difference]: Start difference. First operand 265 states and 276 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:41:21,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:21,325 INFO L93 Difference]: Finished difference Result 274 states and 282 transitions. [2024-09-12 19:41:21,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:41:21,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2024-09-12 19:41:21,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:21,327 INFO L225 Difference]: With dead ends: 274 [2024-09-12 19:41:21,327 INFO L226 Difference]: Without dead ends: 232 [2024-09-12 19:41:21,328 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:41:21,328 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 48 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:21,329 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 328 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:41:21,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-09-12 19:41:21,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 230. [2024-09-12 19:41:21,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 146 states have (on average 1.5342465753424657) internal successors, (224), 218 states have internal predecessors, (224), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:41:21,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 238 transitions. [2024-09-12 19:41:21,353 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 238 transitions. Word has length 55 [2024-09-12 19:41:21,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:21,354 INFO L474 AbstractCegarLoop]: Abstraction has 230 states and 238 transitions. [2024-09-12 19:41:21,354 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:41:21,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:21,354 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 238 transitions. [2024-09-12 19:41:21,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 19:41:21,355 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:21,355 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:21,368 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 19:41:21,555 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 19:41:21,556 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:21,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:21,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1982018601, now seen corresponding path program 1 times [2024-09-12 19:41:21,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:21,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106818510] [2024-09-12 19:41:21,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:21,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:21,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:21,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:21,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:41:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:21,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:41:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:21,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:21,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:21,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106818510] [2024-09-12 19:41:21,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106818510] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:21,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:21,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:41:21,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482206355] [2024-09-12 19:41:21,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:21,628 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:41:21,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:21,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:41:21,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:41:21,629 INFO L87 Difference]: Start difference. First operand 230 states and 238 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:41:21,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:21,670 INFO L93 Difference]: Finished difference Result 232 states and 238 transitions. [2024-09-12 19:41:21,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:41:21,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 58 [2024-09-12 19:41:21,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:21,673 INFO L225 Difference]: With dead ends: 232 [2024-09-12 19:41:21,673 INFO L226 Difference]: Without dead ends: 230 [2024-09-12 19:41:21,673 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:41:21,674 INFO L434 NwaCegarLoop]: 177 mSDtfsCounter, 1 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:21,675 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 349 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:41:21,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-09-12 19:41:21,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2024-09-12 19:41:21,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 146 states have (on average 1.5205479452054795) internal successors, (222), 218 states have internal predecessors, (222), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:41:21,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 236 transitions. [2024-09-12 19:41:21,697 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 236 transitions. Word has length 58 [2024-09-12 19:41:21,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:21,698 INFO L474 AbstractCegarLoop]: Abstraction has 230 states and 236 transitions. [2024-09-12 19:41:21,698 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:41:21,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:21,698 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 236 transitions. [2024-09-12 19:41:21,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-12 19:41:21,701 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:21,701 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:21,701 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 19:41:21,702 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:21,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:21,703 INFO L85 PathProgramCache]: Analyzing trace with hash -247093952, now seen corresponding path program 1 times [2024-09-12 19:41:21,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:21,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784131571] [2024-09-12 19:41:21,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:21,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:21,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1860437239] [2024-09-12 19:41:21,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:21,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:21,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:21,721 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:41:21,725 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 19:41:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:21,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:41:21,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:21,824 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:21,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:41:21,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:21,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784131571] [2024-09-12 19:41:21,826 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:21,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860437239] [2024-09-12 19:41:21,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860437239] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:21,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:21,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:41:21,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298880807] [2024-09-12 19:41:21,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:21,827 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:41:21,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:21,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:41:21,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:41:21,827 INFO L87 Difference]: Start difference. First operand 230 states and 236 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:41:22,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:22,169 INFO L93 Difference]: Finished difference Result 370 states and 387 transitions. [2024-09-12 19:41:22,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:41:22,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 63 [2024-09-12 19:41:22,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:22,170 INFO L225 Difference]: With dead ends: 370 [2024-09-12 19:41:22,170 INFO L226 Difference]: Without dead ends: 318 [2024-09-12 19:41:22,171 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:41:22,171 INFO L434 NwaCegarLoop]: 99 mSDtfsCounter, 91 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:22,171 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 168 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:41:22,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-09-12 19:41:22,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 311. [2024-09-12 19:41:22,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 225 states have (on average 1.4044444444444444) internal successors, (316), 297 states have internal predecessors, (316), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:41:22,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 334 transitions. [2024-09-12 19:41:22,196 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 334 transitions. Word has length 63 [2024-09-12 19:41:22,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:22,196 INFO L474 AbstractCegarLoop]: Abstraction has 311 states and 334 transitions. [2024-09-12 19:41:22,196 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:41:22,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:22,197 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 334 transitions. [2024-09-12 19:41:22,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-09-12 19:41:22,197 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:22,197 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:22,218 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 19:41:22,397 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:22,398 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:22,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:22,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1014359322, now seen corresponding path program 1 times [2024-09-12 19:41:22,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:22,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277964026] [2024-09-12 19:41:22,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:22,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:22,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:22,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:22,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:41:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:22,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:41:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:22,480 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:22,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:22,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277964026] [2024-09-12 19:41:22,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277964026] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:22,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:22,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:41:22,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969706470] [2024-09-12 19:41:22,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:22,481 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:41:22,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:22,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:41:22,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:41:22,481 INFO L87 Difference]: Start difference. First operand 311 states and 334 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:41:22,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:22,568 INFO L93 Difference]: Finished difference Result 312 states and 334 transitions. [2024-09-12 19:41:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:41:22,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 69 [2024-09-12 19:41:22,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:22,570 INFO L225 Difference]: With dead ends: 312 [2024-09-12 19:41:22,570 INFO L226 Difference]: Without dead ends: 311 [2024-09-12 19:41:22,570 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:41:22,571 INFO L434 NwaCegarLoop]: 142 mSDtfsCounter, 39 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:22,571 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 292 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:41:22,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-09-12 19:41:22,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2024-09-12 19:41:22,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 225 states have (on average 1.4) internal successors, (315), 297 states have internal predecessors, (315), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:41:22,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 333 transitions. [2024-09-12 19:41:22,591 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 333 transitions. Word has length 69 [2024-09-12 19:41:22,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:22,591 INFO L474 AbstractCegarLoop]: Abstraction has 311 states and 333 transitions. [2024-09-12 19:41:22,592 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:41:22,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:22,592 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 333 transitions. [2024-09-12 19:41:22,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 19:41:22,593 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:22,593 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:22,593 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 19:41:22,593 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:22,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:22,593 INFO L85 PathProgramCache]: Analyzing trace with hash 967785380, now seen corresponding path program 1 times [2024-09-12 19:41:22,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:22,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468250587] [2024-09-12 19:41:22,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:22,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:22,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2085642368] [2024-09-12 19:41:22,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:22,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:22,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:22,608 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:41:22,608 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 19:41:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:22,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:41:22,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:22,757 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-09-12 19:41:22,758 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:41:22,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:22,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468250587] [2024-09-12 19:41:22,758 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:22,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085642368] [2024-09-12 19:41:22,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085642368] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:22,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:22,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:41:22,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456498187] [2024-09-12 19:41:22,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:22,761 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:41:22,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:22,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:41:22,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:41:22,762 INFO L87 Difference]: Start difference. First operand 311 states and 333 transitions. Second operand has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:41:22,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:22,840 INFO L93 Difference]: Finished difference Result 311 states and 333 transitions. [2024-09-12 19:41:22,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:41:22,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 99 [2024-09-12 19:41:22,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:22,842 INFO L225 Difference]: With dead ends: 311 [2024-09-12 19:41:22,842 INFO L226 Difference]: Without dead ends: 308 [2024-09-12 19:41:22,842 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:41:22,842 INFO L434 NwaCegarLoop]: 152 mSDtfsCounter, 96 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:22,843 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 170 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:41:22,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-09-12 19:41:22,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2024-09-12 19:41:22,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 225 states have (on average 1.3777777777777778) internal successors, (310), 294 states have internal predecessors, (310), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:41:22,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 328 transitions. [2024-09-12 19:41:22,864 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 328 transitions. Word has length 99 [2024-09-12 19:41:22,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:22,865 INFO L474 AbstractCegarLoop]: Abstraction has 308 states and 328 transitions. [2024-09-12 19:41:22,865 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:41:22,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:22,865 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 328 transitions. [2024-09-12 19:41:22,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-09-12 19:41:22,866 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:22,866 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:22,879 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 19:41:23,070 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 19:41:23,071 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:23,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:23,072 INFO L85 PathProgramCache]: Analyzing trace with hash -63424177, now seen corresponding path program 1 times [2024-09-12 19:41:23,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:23,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58534113] [2024-09-12 19:41:23,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:23,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:23,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1168367037] [2024-09-12 19:41:23,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:23,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:23,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:23,091 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:41:23,092 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 19:41:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:23,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:41:23,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:23,318 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:23,318 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:41:23,465 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:23,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:23,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58534113] [2024-09-12 19:41:23,465 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:23,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168367037] [2024-09-12 19:41:23,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168367037] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:41:23,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:41:23,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 19:41:23,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507542279] [2024-09-12 19:41:23,466 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:41:23,466 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:41:23,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:23,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:41:23,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:41:23,467 INFO L87 Difference]: Start difference. First operand 308 states and 328 transitions. Second operand has 8 states, 7 states have (on average 24.0) internal successors, (168), 8 states have internal predecessors, (168), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:41:24,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:24,140 INFO L93 Difference]: Finished difference Result 381 states and 397 transitions. [2024-09-12 19:41:24,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:41:24,141 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 24.0) internal successors, (168), 8 states have internal predecessors, (168), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 100 [2024-09-12 19:41:24,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:24,143 INFO L225 Difference]: With dead ends: 381 [2024-09-12 19:41:24,143 INFO L226 Difference]: Without dead ends: 374 [2024-09-12 19:41:24,143 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:41:24,144 INFO L434 NwaCegarLoop]: 89 mSDtfsCounter, 294 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:24,144 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 362 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:41:24,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-09-12 19:41:24,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 346. [2024-09-12 19:41:24,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 264 states have (on average 1.3977272727272727) internal successors, (369), 332 states have internal predecessors, (369), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:41:24,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 387 transitions. [2024-09-12 19:41:24,179 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 387 transitions. Word has length 100 [2024-09-12 19:41:24,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:24,179 INFO L474 AbstractCegarLoop]: Abstraction has 346 states and 387 transitions. [2024-09-12 19:41:24,179 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 24.0) internal successors, (168), 8 states have internal predecessors, (168), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:41:24,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:24,180 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 387 transitions. [2024-09-12 19:41:24,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-09-12 19:41:24,180 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:24,180 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:24,193 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 19:41:24,381 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:24,381 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:24,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:24,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1966149370, now seen corresponding path program 1 times [2024-09-12 19:41:24,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:24,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870893538] [2024-09-12 19:41:24,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:24,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:24,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1218907459] [2024-09-12 19:41:24,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:24,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:24,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:24,406 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:41:24,407 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 19:41:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:24,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 19:41:24,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:24,629 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:24,629 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:41:27,456 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:27,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:27,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870893538] [2024-09-12 19:41:27,457 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:27,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218907459] [2024-09-12 19:41:27,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218907459] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:41:27,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:41:27,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2024-09-12 19:41:27,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916910791] [2024-09-12 19:41:27,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:27,469 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:41:27,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:27,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:41:27,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:41:27,470 INFO L87 Difference]: Start difference. First operand 346 states and 387 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:41:31,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:34,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:36,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:38,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:41,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:45,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:49,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:52,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:56,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:00,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:02,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:06,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:11,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:11,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:11,134 INFO L93 Difference]: Finished difference Result 346 states and 387 transitions. [2024-09-12 19:42:11,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:42:11,135 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 101 [2024-09-12 19:42:11,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:11,136 INFO L225 Difference]: With dead ends: 346 [2024-09-12 19:42:11,136 INFO L226 Difference]: Without dead ends: 344 [2024-09-12 19:42:11,136 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:42:11,137 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 197 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 10 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:11,137 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 91 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 420 Invalid, 7 Unknown, 0 Unchecked, 43.6s Time] [2024-09-12 19:42:11,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-09-12 19:42:11,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2024-09-12 19:42:11,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 264 states have (on average 1.3825757575757576) internal successors, (365), 330 states have internal predecessors, (365), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:42:11,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 383 transitions. [2024-09-12 19:42:11,201 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 383 transitions. Word has length 101 [2024-09-12 19:42:11,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:11,201 INFO L474 AbstractCegarLoop]: Abstraction has 344 states and 383 transitions. [2024-09-12 19:42:11,201 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:42:11,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:11,202 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 383 transitions. [2024-09-12 19:42:11,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-09-12 19:42:11,203 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:11,203 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:11,216 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 19:42:11,403 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 19:42:11,404 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:11,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:11,404 INFO L85 PathProgramCache]: Analyzing trace with hash -821088207, now seen corresponding path program 1 times [2024-09-12 19:42:11,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:11,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542831350] [2024-09-12 19:42:11,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:11,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:11,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:11,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1447175858] [2024-09-12 19:42:11,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:11,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:11,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:11,430 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:42:11,431 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 19:42:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:11,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:42:11,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:11,590 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:42:11,590 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:42:11,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:11,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542831350] [2024-09-12 19:42:11,591 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:11,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447175858] [2024-09-12 19:42:11,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447175858] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:42:11,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:42:11,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:42:11,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651213451] [2024-09-12 19:42:11,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:42:11,592 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:42:11,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:11,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:42:11,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:42:11,592 INFO L87 Difference]: Start difference. First operand 344 states and 383 transitions. Second operand has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:42:12,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:12,066 INFO L93 Difference]: Finished difference Result 344 states and 383 transitions. [2024-09-12 19:42:12,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:42:12,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 102 [2024-09-12 19:42:12,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:12,068 INFO L225 Difference]: With dead ends: 344 [2024-09-12 19:42:12,068 INFO L226 Difference]: Without dead ends: 324 [2024-09-12 19:42:12,068 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:42:12,069 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 115 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:12,069 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 94 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:42:12,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-09-12 19:42:12,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2024-09-12 19:42:12,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 264 states have (on average 1.268939393939394) internal successors, (335), 310 states have internal predecessors, (335), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:42:12,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 353 transitions. [2024-09-12 19:42:12,143 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 353 transitions. Word has length 102 [2024-09-12 19:42:12,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:12,144 INFO L474 AbstractCegarLoop]: Abstraction has 324 states and 353 transitions. [2024-09-12 19:42:12,144 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:42:12,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:12,144 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 353 transitions. [2024-09-12 19:42:12,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-09-12 19:42:12,145 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:12,145 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:12,157 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-12 19:42:12,345 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 19:42:12,345 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:12,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:12,346 INFO L85 PathProgramCache]: Analyzing trace with hash 316069480, now seen corresponding path program 1 times [2024-09-12 19:42:12,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:12,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948838216] [2024-09-12 19:42:12,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:12,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:12,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [854333409] [2024-09-12 19:42:12,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:12,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:12,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:12,363 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:42:12,365 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 19:42:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:12,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:42:12,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:12,583 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:42:12,584 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:12,757 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-09-12 19:42:12,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:12,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948838216] [2024-09-12 19:42:12,758 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:12,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854333409] [2024-09-12 19:42:12,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854333409] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:42:12,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:42:12,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-09-12 19:42:12,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458238286] [2024-09-12 19:42:12,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:42:12,759 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:42:12,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:12,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:42:12,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:42:12,759 INFO L87 Difference]: Start difference. First operand 324 states and 353 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:42:15,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:15,608 INFO L93 Difference]: Finished difference Result 324 states and 353 transitions. [2024-09-12 19:42:15,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:42:15,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 103 [2024-09-12 19:42:15,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:15,611 INFO L225 Difference]: With dead ends: 324 [2024-09-12 19:42:15,611 INFO L226 Difference]: Without dead ends: 322 [2024-09-12 19:42:15,611 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 199 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:42:15,611 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 80 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:15,611 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 72 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-09-12 19:42:15,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-09-12 19:42:15,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2024-09-12 19:42:15,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 264 states have (on average 1.253787878787879) internal successors, (331), 308 states have internal predecessors, (331), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:42:15,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 349 transitions. [2024-09-12 19:42:15,701 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 349 transitions. Word has length 103 [2024-09-12 19:42:15,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:15,701 INFO L474 AbstractCegarLoop]: Abstraction has 322 states and 349 transitions. [2024-09-12 19:42:15,702 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:42:15,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:15,702 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 349 transitions. [2024-09-12 19:42:15,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-09-12 19:42:15,703 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:15,703 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:15,715 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-12 19:42:15,903 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:15,904 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:15,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:15,904 INFO L85 PathProgramCache]: Analyzing trace with hash 682896451, now seen corresponding path program 1 times [2024-09-12 19:42:15,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:15,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268516635] [2024-09-12 19:42:15,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:15,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:15,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [590522367] [2024-09-12 19:42:15,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:15,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:15,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:15,919 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:42:15,920 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 19:42:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:15,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:42:15,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:16,146 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:42:16,147 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:16,321 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 19:42:16,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:16,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268516635] [2024-09-12 19:42:16,321 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:16,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590522367] [2024-09-12 19:42:16,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590522367] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:42:16,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:42:16,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-09-12 19:42:16,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180632603] [2024-09-12 19:42:16,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:42:16,322 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:42:16,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:16,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:42:16,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:42:16,322 INFO L87 Difference]: Start difference. First operand 322 states and 349 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:42:17,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:17,523 INFO L93 Difference]: Finished difference Result 328 states and 354 transitions. [2024-09-12 19:42:17,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:42:17,523 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 108 [2024-09-12 19:42:17,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:17,525 INFO L225 Difference]: With dead ends: 328 [2024-09-12 19:42:17,525 INFO L226 Difference]: Without dead ends: 324 [2024-09-12 19:42:17,525 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 206 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:42:17,526 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 83 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:17,526 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 111 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 19:42:17,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-09-12 19:42:17,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2024-09-12 19:42:17,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 266 states have (on average 1.2481203007518797) internal successors, (332), 309 states have internal predecessors, (332), 10 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:42:17,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 350 transitions. [2024-09-12 19:42:17,640 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 350 transitions. Word has length 108 [2024-09-12 19:42:17,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:17,641 INFO L474 AbstractCegarLoop]: Abstraction has 324 states and 350 transitions. [2024-09-12 19:42:17,641 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:42:17,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:17,641 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 350 transitions. [2024-09-12 19:42:17,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-09-12 19:42:17,642 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:17,642 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:17,657 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 19:42:17,843 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:17,843 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:17,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:17,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1086921535, now seen corresponding path program 1 times [2024-09-12 19:42:17,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:17,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020153456] [2024-09-12 19:42:17,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:17,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:17,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:42:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:17,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:42:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:17,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:42:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:17,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:42:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:17,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:42:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:17,948 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:42:17,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:17,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020153456] [2024-09-12 19:42:17,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020153456] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:42:17,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781359392] [2024-09-12 19:42:17,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:17,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:17,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:17,950 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:42:17,951 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 19:42:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:17,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:42:17,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:18,071 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:42:18,072 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:42:18,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781359392] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:42:18,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:42:18,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 19:42:18,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203245630] [2024-09-12 19:42:18,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:42:18,072 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:42:18,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:18,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:42:18,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:42:18,073 INFO L87 Difference]: Start difference. First operand 324 states and 350 transitions. Second operand has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:42:18,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:18,193 INFO L93 Difference]: Finished difference Result 324 states and 350 transitions. [2024-09-12 19:42:18,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:42:18,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 111 [2024-09-12 19:42:18,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:18,195 INFO L225 Difference]: With dead ends: 324 [2024-09-12 19:42:18,195 INFO L226 Difference]: Without dead ends: 323 [2024-09-12 19:42:18,195 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:42:18,196 INFO L434 NwaCegarLoop]: 183 mSDtfsCounter, 49 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:18,196 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 293 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:42:18,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-09-12 19:42:18,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-09-12 19:42:18,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 266 states have (on average 1.2406015037593985) internal successors, (330), 308 states have internal predecessors, (330), 10 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:42:18,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 348 transitions. [2024-09-12 19:42:18,304 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 348 transitions. Word has length 111 [2024-09-12 19:42:18,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:18,304 INFO L474 AbstractCegarLoop]: Abstraction has 323 states and 348 transitions. [2024-09-12 19:42:18,304 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:42:18,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:18,305 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 348 transitions. [2024-09-12 19:42:18,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-09-12 19:42:18,305 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:18,305 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:18,320 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-12 19:42:18,506 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 19:42:18,506 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:18,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:18,506 INFO L85 PathProgramCache]: Analyzing trace with hash 665170916, now seen corresponding path program 1 times [2024-09-12 19:42:18,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:18,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711056182] [2024-09-12 19:42:18,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:18,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:18,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:42:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:18,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:42:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:18,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:42:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:18,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:42:18,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:18,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:42:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:18,570 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:42:18,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:18,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711056182] [2024-09-12 19:42:18,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711056182] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:42:18,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740531113] [2024-09-12 19:42:18,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:18,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:18,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:18,573 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:42:18,574 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 19:42:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:18,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:42:18,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:18,680 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:42:18,681 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:18,767 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:42:18,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740531113] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:42:18,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:42:18,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 19:42:18,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999485152] [2024-09-12 19:42:18,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:18,768 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:42:18,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:18,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:42:18,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:42:18,769 INFO L87 Difference]: Start difference. First operand 323 states and 348 transitions. Second operand has 7 states, 6 states have (on average 36.833333333333336) internal successors, (221), 7 states have internal predecessors, (221), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 19:42:18,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:18,927 INFO L93 Difference]: Finished difference Result 422 states and 435 transitions. [2024-09-12 19:42:18,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:42:18,927 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 36.833333333333336) internal successors, (221), 7 states have internal predecessors, (221), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 112 [2024-09-12 19:42:18,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:18,929 INFO L225 Difference]: With dead ends: 422 [2024-09-12 19:42:18,929 INFO L226 Difference]: Without dead ends: 421 [2024-09-12 19:42:18,929 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:42:18,929 INFO L434 NwaCegarLoop]: 147 mSDtfsCounter, 51 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:18,930 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 639 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:42:18,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-09-12 19:42:19,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 380. [2024-09-12 19:42:19,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 321 states have (on average 1.277258566978193) internal successors, (410), 363 states have internal predecessors, (410), 12 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:42:19,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 432 transitions. [2024-09-12 19:42:19,061 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 432 transitions. Word has length 112 [2024-09-12 19:42:19,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:19,062 INFO L474 AbstractCegarLoop]: Abstraction has 380 states and 432 transitions. [2024-09-12 19:42:19,062 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 36.833333333333336) internal successors, (221), 7 states have internal predecessors, (221), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 19:42:19,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:19,062 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 432 transitions. [2024-09-12 19:42:19,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-09-12 19:42:19,063 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:19,064 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:19,078 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 19:42:19,264 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 19:42:19,265 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:19,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:19,265 INFO L85 PathProgramCache]: Analyzing trace with hash -309786960, now seen corresponding path program 1 times [2024-09-12 19:42:19,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:19,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353331196] [2024-09-12 19:42:19,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:19,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:19,331 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:42:19,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:19,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:42:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:19,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:42:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:19,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:42:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:19,337 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:42:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:19,340 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-09-12 19:42:19,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:19,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353331196] [2024-09-12 19:42:19,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353331196] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:42:19,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:42:19,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:42:19,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614240304] [2024-09-12 19:42:19,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:42:19,341 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:42:19,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:19,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:42:19,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:42:19,342 INFO L87 Difference]: Start difference. First operand 380 states and 432 transitions. Second operand has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:42:19,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:19,679 INFO L93 Difference]: Finished difference Result 380 states and 432 transitions. [2024-09-12 19:42:19,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:42:19,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-09-12 19:42:19,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:19,681 INFO L225 Difference]: With dead ends: 380 [2024-09-12 19:42:19,682 INFO L226 Difference]: Without dead ends: 373 [2024-09-12 19:42:19,683 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:42:19,683 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 79 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:19,683 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 69 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:42:19,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-09-12 19:42:19,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2024-09-12 19:42:19,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 321 states have (on average 1.233644859813084) internal successors, (396), 356 states have internal predecessors, (396), 12 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:42:19,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 418 transitions. [2024-09-12 19:42:19,812 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 418 transitions. Word has length 124 [2024-09-12 19:42:19,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:19,813 INFO L474 AbstractCegarLoop]: Abstraction has 373 states and 418 transitions. [2024-09-12 19:42:19,813 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:42:19,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:19,813 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 418 transitions. [2024-09-12 19:42:19,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-09-12 19:42:19,814 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:19,814 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:19,814 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-12 19:42:19,814 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:19,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:19,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1013461109, now seen corresponding path program 1 times [2024-09-12 19:42:19,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:19,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669622742] [2024-09-12 19:42:19,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:19,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:19,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:42:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:19,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:42:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:19,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:42:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:19,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:42:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:19,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:42:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:19,874 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-12 19:42:19,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:19,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669622742] [2024-09-12 19:42:19,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669622742] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:42:19,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:42:19,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:42:19,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014337280] [2024-09-12 19:42:19,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:42:19,875 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:42:19,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:19,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:42:19,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:42:19,876 INFO L87 Difference]: Start difference. First operand 373 states and 418 transitions. Second operand has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:42:20,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:20,154 INFO L93 Difference]: Finished difference Result 373 states and 418 transitions. [2024-09-12 19:42:20,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:42:20,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 125 [2024-09-12 19:42:20,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:20,157 INFO L225 Difference]: With dead ends: 373 [2024-09-12 19:42:20,157 INFO L226 Difference]: Without dead ends: 372 [2024-09-12 19:42:20,157 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:42:20,157 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 110 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:20,157 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 51 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:42:20,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-09-12 19:42:20,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2024-09-12 19:42:20,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 321 states have (on average 1.2242990654205608) internal successors, (393), 355 states have internal predecessors, (393), 12 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:42:20,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 415 transitions. [2024-09-12 19:42:20,295 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 415 transitions. Word has length 125 [2024-09-12 19:42:20,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:20,295 INFO L474 AbstractCegarLoop]: Abstraction has 372 states and 415 transitions. [2024-09-12 19:42:20,295 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:42:20,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:20,295 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 415 transitions. [2024-09-12 19:42:20,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-09-12 19:42:20,296 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:20,296 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:20,296 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-09-12 19:42:20,296 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:20,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:20,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1021452397, now seen corresponding path program 1 times [2024-09-12 19:42:20,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:20,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805731990] [2024-09-12 19:42:20,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:20,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:20,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [260318508] [2024-09-12 19:42:20,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:20,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:20,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:20,316 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:42:20,318 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 19:42:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:20,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:42:20,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:20,456 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:42:20,456 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:20,610 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:42:20,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:20,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805731990] [2024-09-12 19:42:20,611 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:20,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260318508] [2024-09-12 19:42:20,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260318508] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:42:20,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:42:20,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 19:42:20,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63907829] [2024-09-12 19:42:20,611 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:20,612 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:42:20,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:20,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:42:20,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:42:20,612 INFO L87 Difference]: Start difference. First operand 372 states and 415 transitions. Second operand has 8 states, 7 states have (on average 30.285714285714285) internal successors, (212), 8 states have internal predecessors, (212), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:42:21,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:21,161 INFO L93 Difference]: Finished difference Result 435 states and 471 transitions. [2024-09-12 19:42:21,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:42:21,162 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 30.285714285714285) internal successors, (212), 8 states have internal predecessors, (212), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 127 [2024-09-12 19:42:21,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:21,164 INFO L225 Difference]: With dead ends: 435 [2024-09-12 19:42:21,164 INFO L226 Difference]: Without dead ends: 409 [2024-09-12 19:42:21,164 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:42:21,164 INFO L434 NwaCegarLoop]: 55 mSDtfsCounter, 431 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:21,164 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 197 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:42:21,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-09-12 19:42:21,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 356. [2024-09-12 19:42:21,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 310 states have (on average 1.164516129032258) internal successors, (361), 340 states have internal predecessors, (361), 11 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:42:21,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 381 transitions. [2024-09-12 19:42:21,305 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 381 transitions. Word has length 127 [2024-09-12 19:42:21,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:21,305 INFO L474 AbstractCegarLoop]: Abstraction has 356 states and 381 transitions. [2024-09-12 19:42:21,306 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 30.285714285714285) internal successors, (212), 8 states have internal predecessors, (212), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:42:21,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:21,306 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 381 transitions. [2024-09-12 19:42:21,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-09-12 19:42:21,307 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:21,307 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:21,320 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 19:42:21,507 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:21,508 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:21,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:21,508 INFO L85 PathProgramCache]: Analyzing trace with hash 720956271, now seen corresponding path program 1 times [2024-09-12 19:42:21,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:21,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725273386] [2024-09-12 19:42:21,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:21,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:21,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:21,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [196453934] [2024-09-12 19:42:21,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:21,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:21,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:21,527 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:42:21,531 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 19:42:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:21,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:42:21,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:21,904 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:21,904 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:22,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:22,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725273386] [2024-09-12 19:42:22,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:22,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196453934] [2024-09-12 19:42:22,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196453934] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:42:22,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:42:22,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 19:42:22,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282972227] [2024-09-12 19:42:22,163 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:22,163 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:42:22,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:22,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:42:22,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:42:22,164 INFO L87 Difference]: Start difference. First operand 356 states and 381 transitions. Second operand has 6 states, 5 states have (on average 25.6) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:42:22,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:22,510 INFO L93 Difference]: Finished difference Result 356 states and 381 transitions. [2024-09-12 19:42:22,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:42:22,510 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 25.6) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 150 [2024-09-12 19:42:22,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:22,512 INFO L225 Difference]: With dead ends: 356 [2024-09-12 19:42:22,512 INFO L226 Difference]: Without dead ends: 342 [2024-09-12 19:42:22,512 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=95, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:42:22,512 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 46 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:22,513 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 76 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:42:22,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-09-12 19:42:22,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 339. [2024-09-12 19:42:22,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 307 states have (on average 1.0977198697068404) internal successors, (337), 323 states have internal predecessors, (337), 11 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:42:22,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 357 transitions. [2024-09-12 19:42:22,685 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 357 transitions. Word has length 150 [2024-09-12 19:42:22,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:22,686 INFO L474 AbstractCegarLoop]: Abstraction has 339 states and 357 transitions. [2024-09-12 19:42:22,686 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 25.6) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:42:22,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:22,686 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 357 transitions. [2024-09-12 19:42:22,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-09-12 19:42:22,687 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:22,687 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:22,699 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 19:42:22,887 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-09-12 19:42:22,888 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr81ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:22,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:22,888 INFO L85 PathProgramCache]: Analyzing trace with hash 874808150, now seen corresponding path program 1 times [2024-09-12 19:42:22,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:22,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923444919] [2024-09-12 19:42:22,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:22,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:22,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:22,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [150700052] [2024-09-12 19:42:22,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:22,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:22,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:22,903 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:42:22,904 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 19:42:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:22,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:42:22,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:23,212 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:23,212 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:23,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:23,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923444919] [2024-09-12 19:42:23,705 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:23,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150700052] [2024-09-12 19:42:23,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150700052] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:42:23,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:42:23,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 19:42:23,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419839613] [2024-09-12 19:42:23,706 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:23,706 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:42:23,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:23,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:42:23,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:42:23,706 INFO L87 Difference]: Start difference. First operand 339 states and 357 transitions. Second operand has 6 states, 5 states have (on average 25.8) internal successors, (129), 6 states have internal predecessors, (129), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:42:24,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:24,097 INFO L93 Difference]: Finished difference Result 380 states and 399 transitions. [2024-09-12 19:42:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:42:24,097 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 25.8) internal successors, (129), 6 states have internal predecessors, (129), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 151 [2024-09-12 19:42:24,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:24,099 INFO L225 Difference]: With dead ends: 380 [2024-09-12 19:42:24,099 INFO L226 Difference]: Without dead ends: 379 [2024-09-12 19:42:24,099 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:42:24,099 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 5 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:24,100 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 128 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:42:24,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-09-12 19:42:24,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 376. [2024-09-12 19:42:24,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 343 states have (on average 1.087463556851312) internal successors, (373), 359 states have internal predecessors, (373), 12 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:42:24,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 395 transitions. [2024-09-12 19:42:24,262 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 395 transitions. Word has length 151 [2024-09-12 19:42:24,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:24,263 INFO L474 AbstractCegarLoop]: Abstraction has 376 states and 395 transitions. [2024-09-12 19:42:24,263 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 25.8) internal successors, (129), 6 states have internal predecessors, (129), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:42:24,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:24,263 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 395 transitions. [2024-09-12 19:42:24,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-09-12 19:42:24,267 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:24,267 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:24,279 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 19:42:24,470 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:24,471 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:24,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:24,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1236611356, now seen corresponding path program 1 times [2024-09-12 19:42:24,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:24,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371306046] [2024-09-12 19:42:24,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:24,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:24,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1364307770] [2024-09-12 19:42:24,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:24,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:24,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:24,487 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:42:24,488 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 19:42:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:24,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:42:24,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:24,826 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 6 proven. 37 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:24,826 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:25,130 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 6 proven. 37 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:25,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:25,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371306046] [2024-09-12 19:42:25,131 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:25,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364307770] [2024-09-12 19:42:25,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364307770] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:42:25,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:42:25,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2024-09-12 19:42:25,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013996597] [2024-09-12 19:42:25,131 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:25,132 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:42:25,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:25,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:42:25,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:42:25,134 INFO L87 Difference]: Start difference. First operand 376 states and 395 transitions. Second operand has 14 states, 14 states have (on average 18.357142857142858) internal successors, (257), 13 states have internal predecessors, (257), 7 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:42:25,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:25,790 INFO L93 Difference]: Finished difference Result 383 states and 401 transitions. [2024-09-12 19:42:25,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:42:25,790 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.357142857142858) internal successors, (257), 13 states have internal predecessors, (257), 7 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 157 [2024-09-12 19:42:25,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:25,792 INFO L225 Difference]: With dead ends: 383 [2024-09-12 19:42:25,792 INFO L226 Difference]: Without dead ends: 339 [2024-09-12 19:42:25,792 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 299 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:42:25,792 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 6 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:25,792 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 292 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:42:25,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-09-12 19:42:25,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2024-09-12 19:42:25,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 307 states have (on average 1.0944625407166124) internal successors, (336), 323 states have internal predecessors, (336), 11 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:42:25,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 356 transitions. [2024-09-12 19:42:25,928 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 356 transitions. Word has length 157 [2024-09-12 19:42:25,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:25,928 INFO L474 AbstractCegarLoop]: Abstraction has 339 states and 356 transitions. [2024-09-12 19:42:25,928 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.357142857142858) internal successors, (257), 13 states have internal predecessors, (257), 7 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:42:25,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:25,928 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 356 transitions. [2024-09-12 19:42:25,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-09-12 19:42:25,929 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:25,929 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:25,941 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 19:42:26,129 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 19:42:26,130 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:26,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:26,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1699567650, now seen corresponding path program 1 times [2024-09-12 19:42:26,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:26,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285082902] [2024-09-12 19:42:26,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:26,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:26,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1369139110] [2024-09-12 19:42:26,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:26,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:26,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:26,150 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:42:26,152 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 19:42:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:26,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:42:26,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:26,315 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 139 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:26,315 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:26,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:26,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285082902] [2024-09-12 19:42:26,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:26,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369139110] [2024-09-12 19:42:26,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369139110] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:42:26,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:42:26,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 19:42:26,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018423784] [2024-09-12 19:42:26,357 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:26,357 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:42:26,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:26,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:42:26,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:42:26,358 INFO L87 Difference]: Start difference. First operand 339 states and 356 transitions. Second operand has 6 states, 5 states have (on average 29.8) internal successors, (149), 6 states have internal predecessors, (149), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:42:26,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:26,743 INFO L93 Difference]: Finished difference Result 401 states and 422 transitions. [2024-09-12 19:42:26,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:42:26,744 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 29.8) internal successors, (149), 6 states have internal predecessors, (149), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 171 [2024-09-12 19:42:26,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:26,745 INFO L225 Difference]: With dead ends: 401 [2024-09-12 19:42:26,746 INFO L226 Difference]: Without dead ends: 398 [2024-09-12 19:42:26,746 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:42:26,747 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 162 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:26,747 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 95 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:42:26,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-09-12 19:42:26,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 339. [2024-09-12 19:42:26,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 307 states have (on average 1.0846905537459284) internal successors, (333), 323 states have internal predecessors, (333), 11 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:42:26,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 353 transitions. [2024-09-12 19:42:26,888 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 353 transitions. Word has length 171 [2024-09-12 19:42:26,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:26,888 INFO L474 AbstractCegarLoop]: Abstraction has 339 states and 353 transitions. [2024-09-12 19:42:26,888 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 29.8) internal successors, (149), 6 states have internal predecessors, (149), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:42:26,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:26,888 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 353 transitions. [2024-09-12 19:42:26,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-09-12 19:42:26,889 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:26,889 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:26,900 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-12 19:42:27,090 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 19:42:27,091 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:27,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:27,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1196943876, now seen corresponding path program 1 times [2024-09-12 19:42:27,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:27,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182574209] [2024-09-12 19:42:27,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:27,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:27,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1373882691] [2024-09-12 19:42:27,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:27,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:27,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:27,119 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:42:27,120 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 19:42:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:27,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:42:27,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:27,279 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:27,279 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:27,567 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:27,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:27,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182574209] [2024-09-12 19:42:27,567 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:27,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373882691] [2024-09-12 19:42:27,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373882691] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:42:27,568 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:42:27,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-09-12 19:42:27,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110228178] [2024-09-12 19:42:27,568 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:27,568 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:42:27,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:27,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:42:27,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:42:27,569 INFO L87 Difference]: Start difference. First operand 339 states and 353 transitions. Second operand has 10 states, 9 states have (on average 32.666666666666664) internal successors, (294), 10 states have internal predecessors, (294), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:42:28,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:28,159 INFO L93 Difference]: Finished difference Result 419 states and 441 transitions. [2024-09-12 19:42:28,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:42:28,159 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 32.666666666666664) internal successors, (294), 10 states have internal predecessors, (294), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 173 [2024-09-12 19:42:28,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:28,161 INFO L225 Difference]: With dead ends: 419 [2024-09-12 19:42:28,161 INFO L226 Difference]: Without dead ends: 408 [2024-09-12 19:42:28,161 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:42:28,161 INFO L434 NwaCegarLoop]: 63 mSDtfsCounter, 429 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:28,162 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 254 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:42:28,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-09-12 19:42:28,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 326. [2024-09-12 19:42:28,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 301 states have (on average 1.0465116279069768) internal successors, (315), 310 states have internal predecessors, (315), 11 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:42:28,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 335 transitions. [2024-09-12 19:42:28,305 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 335 transitions. Word has length 173 [2024-09-12 19:42:28,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:28,305 INFO L474 AbstractCegarLoop]: Abstraction has 326 states and 335 transitions. [2024-09-12 19:42:28,305 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 32.666666666666664) internal successors, (294), 10 states have internal predecessors, (294), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:42:28,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:28,306 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 335 transitions. [2024-09-12 19:42:28,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-09-12 19:42:28,310 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:28,310 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:28,330 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-12 19:42:28,511 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:28,511 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:28,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:28,511 INFO L85 PathProgramCache]: Analyzing trace with hash -788165658, now seen corresponding path program 1 times [2024-09-12 19:42:28,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:28,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633511000] [2024-09-12 19:42:28,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:28,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:28,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [845997438] [2024-09-12 19:42:28,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:28,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:28,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:28,528 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:42:28,528 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 19:42:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:28,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 19:42:28,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:28,881 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:28,881 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:29,144 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:29,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:29,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633511000] [2024-09-12 19:42:29,145 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:29,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845997438] [2024-09-12 19:42:29,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845997438] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:42:29,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:42:29,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-09-12 19:42:29,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894109072] [2024-09-12 19:42:29,145 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:29,145 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:42:29,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:29,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:42:29,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:42:29,147 INFO L87 Difference]: Start difference. First operand 326 states and 335 transitions. Second operand has 14 states, 13 states have (on average 22.923076923076923) internal successors, (298), 14 states have internal predecessors, (298), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:42:30,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:30,477 INFO L93 Difference]: Finished difference Result 579 states and 614 transitions. [2024-09-12 19:42:30,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:42:30,478 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 22.923076923076923) internal successors, (298), 14 states have internal predecessors, (298), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 175 [2024-09-12 19:42:30,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:30,480 INFO L225 Difference]: With dead ends: 579 [2024-09-12 19:42:30,480 INFO L226 Difference]: Without dead ends: 578 [2024-09-12 19:42:30,481 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=179, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:42:30,481 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 603 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 1594 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:30,481 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 226 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1594 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 19:42:30,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2024-09-12 19:42:30,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 434. [2024-09-12 19:42:30,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 407 states have (on average 1.0614250614250613) internal successors, (432), 416 states have internal predecessors, (432), 13 states have call successors, (13), 6 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:42:30,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 456 transitions. [2024-09-12 19:42:30,719 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 456 transitions. Word has length 175 [2024-09-12 19:42:30,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:30,719 INFO L474 AbstractCegarLoop]: Abstraction has 434 states and 456 transitions. [2024-09-12 19:42:30,719 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 22.923076923076923) internal successors, (298), 14 states have internal predecessors, (298), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:42:30,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:30,720 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 456 transitions. [2024-09-12 19:42:30,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-09-12 19:42:30,720 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:30,720 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:30,732 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-09-12 19:42:30,921 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:30,921 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr81ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:30,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:30,921 INFO L85 PathProgramCache]: Analyzing trace with hash -577930818, now seen corresponding path program 2 times [2024-09-12 19:42:30,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:30,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147770551] [2024-09-12 19:42:30,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:30,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:30,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [218702523] [2024-09-12 19:42:30,938 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:42:30,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:30,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:30,944 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:42:30,945 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 19:42:30,983 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-12 19:42:30,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:42:30,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:42:30,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:31,471 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-09-12 19:42:31,471 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:42:31,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:31,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147770551] [2024-09-12 19:42:31,471 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:31,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218702523] [2024-09-12 19:42:31,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218702523] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:42:31,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:42:31,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:42:31,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530247398] [2024-09-12 19:42:31,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:42:31,472 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:42:31,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:31,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:42:31,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:42:31,473 INFO L87 Difference]: Start difference. First operand 434 states and 456 transitions. Second operand has 5 states, 4 states have (on average 29.75) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:42:31,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:31,826 INFO L93 Difference]: Finished difference Result 434 states and 456 transitions. [2024-09-12 19:42:31,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:42:31,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 29.75) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 204 [2024-09-12 19:42:31,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:31,828 INFO L225 Difference]: With dead ends: 434 [2024-09-12 19:42:31,829 INFO L226 Difference]: Without dead ends: 433 [2024-09-12 19:42:31,829 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:42:31,829 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 34 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:31,829 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 60 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:42:31,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-09-12 19:42:32,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2024-09-12 19:42:32,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 407 states have (on average 1.058968058968059) internal successors, (431), 415 states have internal predecessors, (431), 13 states have call successors, (13), 6 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:42:32,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 455 transitions. [2024-09-12 19:42:32,084 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 455 transitions. Word has length 204 [2024-09-12 19:42:32,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:32,084 INFO L474 AbstractCegarLoop]: Abstraction has 433 states and 455 transitions. [2024-09-12 19:42:32,084 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 29.75) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:42:32,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:32,085 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 455 transitions. [2024-09-12 19:42:32,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-09-12 19:42:32,085 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:32,085 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:32,097 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-09-12 19:42:32,286 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 19:42:32,286 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:32,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:32,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1267640399, now seen corresponding path program 2 times [2024-09-12 19:42:32,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:32,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907824221] [2024-09-12 19:42:32,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:32,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:32,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1767584406] [2024-09-12 19:42:32,309 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:42:32,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:32,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:32,310 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:42:32,311 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 19:42:32,371 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:42:32,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:42:32,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 19:42:32,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:32,691 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 6 proven. 240 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-12 19:42:32,691 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:34,374 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 6 proven. 240 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-12 19:42:34,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:34,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907824221] [2024-09-12 19:42:34,375 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:34,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767584406] [2024-09-12 19:42:34,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767584406] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:42:34,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:42:34,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2024-09-12 19:42:34,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17461432] [2024-09-12 19:42:34,375 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:34,375 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 19:42:34,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:34,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 19:42:34,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:42:34,376 INFO L87 Difference]: Start difference. First operand 433 states and 455 transitions. Second operand has 20 states, 19 states have (on average 19.210526315789473) internal successors, (365), 20 states have internal predecessors, (365), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:42:37,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:38,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:44,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:48,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:53,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:59,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:43:01,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:43:02,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:43:04,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:43:11,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:43:13,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:43:16,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:43:22,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:43:24,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:43:26,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:43:32,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:43:36,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:43:39,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:43:39,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:43:39,195 INFO L93 Difference]: Finished difference Result 707 states and 742 transitions. [2024-09-12 19:43:39,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 19:43:39,196 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 19.210526315789473) internal successors, (365), 20 states have internal predecessors, (365), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 206 [2024-09-12 19:43:39,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:43:39,198 INFO L225 Difference]: With dead ends: 707 [2024-09-12 19:43:39,198 INFO L226 Difference]: Without dead ends: 705 [2024-09-12 19:43:39,199 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2024-09-12 19:43:39,199 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 1001 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 2566 mSolverCounterSat, 66 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 2640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2566 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:43:39,199 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 370 Invalid, 2640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2566 Invalid, 8 Unknown, 0 Unchecked, 63.7s Time] [2024-09-12 19:43:39,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-09-12 19:43:39,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 513. [2024-09-12 19:43:39,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 486 states have (on average 1.059670781893004) internal successors, (515), 494 states have internal predecessors, (515), 14 states have call successors, (14), 6 states have call predecessors, (14), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 19:43:39,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 541 transitions. [2024-09-12 19:43:39,547 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 541 transitions. Word has length 206 [2024-09-12 19:43:39,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:43:39,548 INFO L474 AbstractCegarLoop]: Abstraction has 513 states and 541 transitions. [2024-09-12 19:43:39,548 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 19.210526315789473) internal successors, (365), 20 states have internal predecessors, (365), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:43:39,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:43:39,548 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 541 transitions. [2024-09-12 19:43:39,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-09-12 19:43:39,549 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:43:39,549 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:43:39,561 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-09-12 19:43:39,749 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 19:43:39,749 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:43:39,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:43:39,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1814779724, now seen corresponding path program 2 times [2024-09-12 19:43:39,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:43:39,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813602076] [2024-09-12 19:43:39,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:43:39,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:43:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:43:39,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1250088380] [2024-09-12 19:43:39,765 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:43:39,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:43:39,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:43:39,767 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:43:39,768 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 19:43:39,826 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:43:39,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:43:39,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 19:43:39,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:43:40,378 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 11 proven. 123 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-09-12 19:43:40,378 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:43:40,872 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 8 proven. 123 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:43:40,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:43:40,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813602076] [2024-09-12 19:43:40,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:43:40,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250088380] [2024-09-12 19:43:40,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250088380] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:43:40,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:43:40,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 23 [2024-09-12 19:43:40,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612987690] [2024-09-12 19:43:40,873 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:43:40,873 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-12 19:43:40,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:43:40,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-12 19:43:40,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2024-09-12 19:43:40,874 INFO L87 Difference]: Start difference. First operand 513 states and 541 transitions. Second operand has 23 states, 23 states have (on average 15.565217391304348) internal successors, (358), 20 states have internal predecessors, (358), 9 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 10 states have call predecessors, (12), 9 states have call successors, (12) [2024-09-12 19:43:42,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:43:42,202 INFO L93 Difference]: Finished difference Result 581 states and 610 transitions. [2024-09-12 19:43:42,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 19:43:42,203 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 15.565217391304348) internal successors, (358), 20 states have internal predecessors, (358), 9 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 10 states have call predecessors, (12), 9 states have call successors, (12) Word has length 210 [2024-09-12 19:43:42,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:43:42,204 INFO L225 Difference]: With dead ends: 581 [2024-09-12 19:43:42,205 INFO L226 Difference]: Without dead ends: 497 [2024-09-12 19:43:42,205 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=191, Invalid=1069, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 19:43:42,205 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 191 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 2183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:43:42,206 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 377 Invalid, 2183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 19:43:42,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-09-12 19:43:42,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 495. [2024-09-12 19:43:42,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 468 states have (on average 1.0576923076923077) internal successors, (495), 476 states have internal predecessors, (495), 14 states have call successors, (14), 6 states have call predecessors, (14), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 19:43:42,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 521 transitions. [2024-09-12 19:43:42,541 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 521 transitions. Word has length 210 [2024-09-12 19:43:42,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:43:42,542 INFO L474 AbstractCegarLoop]: Abstraction has 495 states and 521 transitions. [2024-09-12 19:43:42,542 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 15.565217391304348) internal successors, (358), 20 states have internal predecessors, (358), 9 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 10 states have call predecessors, (12), 9 states have call successors, (12) [2024-09-12 19:43:42,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:43:42,542 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 521 transitions. [2024-09-12 19:43:42,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-09-12 19:43:42,543 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:43:42,543 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:43:42,555 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-09-12 19:43:42,743 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 19:43:42,744 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:43:42,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:43:42,744 INFO L85 PathProgramCache]: Analyzing trace with hash -158571727, now seen corresponding path program 1 times [2024-09-12 19:43:42,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:43:42,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555207811] [2024-09-12 19:43:42,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:43:42,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:43:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:43:42,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [737416617] [2024-09-12 19:43:42,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:43:42,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:43:42,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:43:42,782 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:43:42,783 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 19:43:42,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:43:42,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 19:43:42,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:43:43,026 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 9 proven. 330 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-12 19:43:43,026 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:44:33,361 WARN L854 $PredicateComparison]: unable to prove that (or (not (= (mod (+ (* 15 c_main_~y~0 c_main_~y~0 c_main_~y~0 c_main_~y~0) (* 20 c_main_~y~0 c_main_~y~0 c_main_~y~0) (* c_main_~y~0 c_main_~y~0 c_main_~y~0 c_main_~y~0 c_main_~y~0 24) c_main_~y~0) 30) 0)) (< (+ (* (* c_main_~y~0 c_main_~y~0) 24) (* 32 c_main_~y~0) (* (* c_main_~y~0 c_main_~y~0 c_main_~y~0) 8) (* c_main_~y~0 c_main_~y~0 c_main_~y~0 c_main_~y~0)) 1537228672809129286)) is different from false [2024-09-12 19:44:39,386 WARN L293 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)