/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label24.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 05:33:28,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 05:33:28,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 05:33:28,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 05:33:28,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 05:33:28,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 05:33:28,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 05:33:28,272 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 05:33:28,301 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 05:33:28,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 05:33:28,302 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 05:33:28,302 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 05:33:28,302 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 05:33:28,302 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 05:33:28,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 05:33:28,303 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 05:33:28,303 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 05:33:28,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 05:33:28,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 05:33:28,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 05:33:28,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 05:33:28,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 05:33:28,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 05:33:28,305 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 05:33:28,305 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 05:33:28,305 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 05:33:28,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 05:33:28,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 05:33:28,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 05:33:28,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 05:33:28,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 05:33:28,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 05:33:28,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 05:33:28,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 05:33:28,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 05:33:28,306 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 05:33:28,306 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 05:33:28,306 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 05:33:28,306 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 05:33:28,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 05:33:28,307 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 05:33:28,307 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 05:33:28,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 05:33:28,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 05:33:28,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 05:33:28,529 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 05:33:28,529 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 05:33:28,530 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label24.c [2022-01-10 05:33:28,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8cc1180a/49ab91543bf8423fba15cb05a4cbdc84/FLAG9635ddda7 [2022-01-10 05:33:29,080 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 05:33:29,081 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label24.c [2022-01-10 05:33:29,102 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8cc1180a/49ab91543bf8423fba15cb05a4cbdc84/FLAG9635ddda7 [2022-01-10 05:33:29,317 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8cc1180a/49ab91543bf8423fba15cb05a4cbdc84 [2022-01-10 05:33:29,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 05:33:29,320 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 05:33:29,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 05:33:29,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 05:33:29,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 05:33:29,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:33:29" (1/1) ... [2022-01-10 05:33:29,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13a37a45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:33:29, skipping insertion in model container [2022-01-10 05:33:29,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:33:29" (1/1) ... [2022-01-10 05:33:29,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 05:33:29,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 05:33:29,614 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label24.c[8922,8935] [2022-01-10 05:33:30,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 05:33:30,091 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 05:33:30,122 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label24.c[8922,8935] [2022-01-10 05:33:30,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 05:33:30,367 INFO L208 MainTranslator]: Completed translation [2022-01-10 05:33:30,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:33:30 WrapperNode [2022-01-10 05:33:30,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 05:33:30,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 05:33:30,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 05:33:30,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 05:33:30,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:33:30" (1/1) ... [2022-01-10 05:33:30,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:33:30" (1/1) ... [2022-01-10 05:33:30,532 INFO L137 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2608 [2022-01-10 05:33:30,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 05:33:30,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 05:33:30,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 05:33:30,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 05:33:30,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:33:30" (1/1) ... [2022-01-10 05:33:30,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:33:30" (1/1) ... [2022-01-10 05:33:30,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:33:30" (1/1) ... [2022-01-10 05:33:30,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:33:30" (1/1) ... [2022-01-10 05:33:30,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:33:30" (1/1) ... [2022-01-10 05:33:30,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:33:30" (1/1) ... [2022-01-10 05:33:30,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:33:30" (1/1) ... [2022-01-10 05:33:30,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 05:33:30,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 05:33:30,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 05:33:30,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 05:33:30,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:33:30" (1/1) ... [2022-01-10 05:33:30,714 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 05:33:30,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 05:33:30,735 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 05:33:30,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 05:33:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 05:33:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 05:33:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 05:33:30,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 05:33:30,813 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 05:33:30,814 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 05:33:54,541 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 05:33:54,555 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 05:33:54,555 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 05:33:54,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:33:54 BoogieIcfgContainer [2022-01-10 05:33:54,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 05:33:54,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 05:33:54,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 05:33:54,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 05:33:54,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:33:29" (1/3) ... [2022-01-10 05:33:54,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129eb45a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:33:54, skipping insertion in model container [2022-01-10 05:33:54,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:33:30" (2/3) ... [2022-01-10 05:33:54,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129eb45a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:33:54, skipping insertion in model container [2022-01-10 05:33:54,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:33:54" (3/3) ... [2022-01-10 05:33:54,564 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem17_label24.c [2022-01-10 05:33:54,568 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 05:33:54,568 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 05:33:54,608 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 05:33:54,613 INFO L339 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 05:33:54,613 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 05:33:54,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 05:33:54,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 05:33:54,646 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:33:54,646 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 05:33:54,648 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:33:54,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:33:54,671 INFO L85 PathProgramCache]: Analyzing trace with hash -634083006, now seen corresponding path program 1 times [2022-01-10 05:33:54,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:33:54,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673468700] [2022-01-10 05:33:54,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:33:54,683 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:33:54,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:33:54,684 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 05:33:54,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 05:33:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 05:33:54,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 05:33:54,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 05:33:54,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 05:33:54,959 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 05:33:54,960 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 05:33:54,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673468700] [2022-01-10 05:33:54,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673468700] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 05:33:54,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 05:33:54,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 05:33:54,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336889198] [2022-01-10 05:33:54,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 05:33:54,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 05:33:54,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 05:33:54,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 05:33:54,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 05:33:54,988 INFO L87 Difference]: Start difference. First operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 05:34:23,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 05:34:23,520 INFO L93 Difference]: Finished difference Result 1641 states and 3026 transitions. [2022-01-10 05:34:23,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 05:34:23,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-10 05:34:23,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 05:34:23,537 INFO L225 Difference]: With dead ends: 1641 [2022-01-10 05:34:23,537 INFO L226 Difference]: Without dead ends: 974 [2022-01-10 05:34:23,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 05:34:23,545 INFO L933 BasicCegarLoop]: 424 mSDtfsCounter, 425 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1499 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 1791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 1499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.4s IncrementalHoareTripleChecker+Time [2022-01-10 05:34:23,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [425 Valid, 502 Invalid, 1791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 1499 Invalid, 0 Unknown, 0 Unchecked, 28.4s Time] [2022-01-10 05:34:23,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2022-01-10 05:34:23,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 965. [2022-01-10 05:34:23,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 964 states have (on average 1.553941908713693) internal successors, (1498), 964 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 05:34:23,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1498 transitions. [2022-01-10 05:34:23,640 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1498 transitions. Word has length 60 [2022-01-10 05:34:23,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 05:34:23,640 INFO L470 AbstractCegarLoop]: Abstraction has 965 states and 1498 transitions. [2022-01-10 05:34:23,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 05:34:23,641 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1498 transitions. [2022-01-10 05:34:23,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-01-10 05:34:23,644 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:34:23,644 INFO L514 BasicCegarLoop]: 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, 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] [2022-01-10 05:34:23,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-01-10 05:34:23,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 05:34:23,853 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:34:23,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:34:23,854 INFO L85 PathProgramCache]: Analyzing trace with hash 373934106, now seen corresponding path program 1 times [2022-01-10 05:34:23,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:34:23,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188333419] [2022-01-10 05:34:23,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:34:23,855 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:34:23,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:34:23,857 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 05:34:23,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 05:34:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 05:34:23,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 05:34:23,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 05:34:24,242 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 05:34:24,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 05:34:24,243 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 05:34:24,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188333419] [2022-01-10 05:34:24,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188333419] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 05:34:24,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 05:34:24,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 05:34:24,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711688624] [2022-01-10 05:34:24,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 05:34:24,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 05:34:24,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 05:34:24,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 05:34:24,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 05:34:24,246 INFO L87 Difference]: Start difference. First operand 965 states and 1498 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)