/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/xcsp/Dubois-030.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 07:31:20,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 07:31:20,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 07:31:20,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 07:31:20,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 07:31:20,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 07:31:20,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 07:31:20,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 07:31:20,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 07:31:20,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 07:31:20,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 07:31:20,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 07:31:20,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 07:31:20,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 07:31:20,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 07:31:20,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 07:31:20,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 07:31:20,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 07:31:20,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 07:31:20,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 07:31:20,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 07:31:20,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 07:31:20,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 07:31:20,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 07:31:20,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 07:31:20,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 07:31:20,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 07:31:20,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 07:31:20,093 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 07:31:20,121 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 07:31:20,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 07:31:20,121 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 07:31:20,122 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 07:31:20,122 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 07:31:20,122 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 07:31:20,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 07:31:20,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 07:31:20,123 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 07:31:20,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 07:31:20,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 07:31:20,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 07:31:20,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 07:31:20,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 07:31:20,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 07:31:20,124 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 07:31:20,124 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 07:31:20,124 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 07:31:20,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 07:31:20,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 07:31:20,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 07:31:20,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 07:31:20,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 07:31:20,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 07:31:20,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 07:31:20,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 07:31:20,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 07:31:20,126 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 07:31:20,126 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 07:31:20,126 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 07:31:20,126 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 07:31:20,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 07:31:20,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 07:31:20,126 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 07:31:20,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 07:31:20,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 07:31:20,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 07:31:20,321 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 07:31:20,322 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 07:31:20,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/xcsp/Dubois-030.c [2022-01-10 07:31:20,370 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/850d12685/4e9975b7f2fa4a74818cae76c4393807/FLAG3a6c8759a [2022-01-10 07:31:20,757 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 07:31:20,757 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/xcsp/Dubois-030.c [2022-01-10 07:31:20,763 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/850d12685/4e9975b7f2fa4a74818cae76c4393807/FLAG3a6c8759a [2022-01-10 07:31:20,771 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/850d12685/4e9975b7f2fa4a74818cae76c4393807 [2022-01-10 07:31:20,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 07:31:20,773 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 07:31:20,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 07:31:20,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 07:31:20,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 07:31:20,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:31:20" (1/1) ... [2022-01-10 07:31:20,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea0c668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:20, skipping insertion in model container [2022-01-10 07:31:20,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:31:20" (1/1) ... [2022-01-10 07:31:20,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 07:31:20,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 07:31:21,014 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/xcsp/Dubois-030.c[21240,21253] [2022-01-10 07:31:21,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 07:31:21,043 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 07:31:21,105 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/xcsp/Dubois-030.c[21240,21253] [2022-01-10 07:31:21,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 07:31:21,121 INFO L208 MainTranslator]: Completed translation [2022-01-10 07:31:21,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:21 WrapperNode [2022-01-10 07:31:21,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 07:31:21,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 07:31:21,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 07:31:21,123 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 07:31:21,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:21" (1/1) ... [2022-01-10 07:31:21,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:21" (1/1) ... [2022-01-10 07:31:21,206 INFO L137 Inliner]: procedures = 13, calls = 247, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 527 [2022-01-10 07:31:21,207 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 07:31:21,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 07:31:21,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 07:31:21,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 07:31:21,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:21" (1/1) ... [2022-01-10 07:31:21,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:21" (1/1) ... [2022-01-10 07:31:21,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:21" (1/1) ... [2022-01-10 07:31:21,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:21" (1/1) ... [2022-01-10 07:31:21,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:21" (1/1) ... [2022-01-10 07:31:21,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:21" (1/1) ... [2022-01-10 07:31:21,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:21" (1/1) ... [2022-01-10 07:31:21,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 07:31:21,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 07:31:21,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 07:31:21,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 07:31:21,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:21" (1/1) ... [2022-01-10 07:31:21,277 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 07:31:21,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 07:31:21,299 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 07:31:21,300 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 07:31:21,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 07:31:21,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 07:31:21,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 07:31:21,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 07:31:21,325 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-01-10 07:31:21,325 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-01-10 07:31:21,418 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 07:31:21,420 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 07:31:21,801 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 07:31:21,820 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 07:31:21,820 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 07:31:21,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:31:21 BoogieIcfgContainer [2022-01-10 07:31:21,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 07:31:21,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 07:31:21,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 07:31:21,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 07:31:21,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 07:31:20" (1/3) ... [2022-01-10 07:31:21,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3444d8ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:31:21, skipping insertion in model container [2022-01-10 07:31:21,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:21" (2/3) ... [2022-01-10 07:31:21,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3444d8ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:31:21, skipping insertion in model container [2022-01-10 07:31:21,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:31:21" (3/3) ... [2022-01-10 07:31:21,830 INFO L111 eAbstractionObserver]: Analyzing ICFG Dubois-030.c [2022-01-10 07:31:21,836 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 07:31:21,836 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 07:31:21,875 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 07:31:21,882 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 07:31:21,882 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 07:31:21,906 INFO L276 IsEmpty]: Start isEmpty. Operand has 341 states, 98 states have (on average 1.0204081632653061) internal successors, (100), 99 states have internal predecessors, (100), 240 states have call successors, (240), 1 states have call predecessors, (240), 1 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2022-01-10 07:31:21,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1294 [2022-01-10 07:31:21,956 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:31:21,957 INFO L514 BasicCegarLoop]: trace histogram [240, 240, 240, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:21,958 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:31:21,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:31:21,965 INFO L85 PathProgramCache]: Analyzing trace with hash -357744917, now seen corresponding path program 1 times [2022-01-10 07:31:21,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:31:21,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866029430] [2022-01-10 07:31:21,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:31:21,979 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:31:21,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:31:21,981 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 07:31:21,983 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 07:31:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:31:22,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 1786 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 07:31:22,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:31:23,934 INFO L134 CoverageAnalysis]: Checked inductivity of 114720 backedges. 53630 proven. 0 refuted. 0 times theorem prover too weak. 61090 trivial. 0 not checked. [2022-01-10 07:31:23,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:31:23,935 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:31:23,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [866029430] [2022-01-10 07:31:23,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [866029430] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:31:23,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:31:23,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 07:31:23,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080812552] [2022-01-10 07:31:23,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:31:23,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 07:31:23,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:31:23,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 07:31:23,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 07:31:23,963 INFO L87 Difference]: Start difference. First operand has 341 states, 98 states have (on average 1.0204081632653061) internal successors, (100), 99 states have internal predecessors, (100), 240 states have call successors, (240), 1 states have call predecessors, (240), 1 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) Second operand has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 2 states have call successors, (240), 2 states have call predecessors, (240), 2 states have return successors, (240), 2 states have call predecessors, (240), 2 states have call successors, (240) [2022-01-10 07:31:24,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:31:24,020 INFO L93 Difference]: Finished difference Result 676 states and 1394 transitions. [2022-01-10 07:31:24,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 07:31:24,022 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 2 states have call successors, (240), 2 states have call predecessors, (240), 2 states have return successors, (240), 2 states have call predecessors, (240), 2 states have call successors, (240) Word has length 1293 [2022-01-10 07:31:24,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:31:24,031 INFO L225 Difference]: With dead ends: 676 [2022-01-10 07:31:24,031 INFO L226 Difference]: Without dead ends: 338 [2022-01-10 07:31:24,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1292 GetRequests, 1292 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 07:31:24,039 INFO L933 BasicCegarLoop]: 576 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:31:24,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:31:24,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-01-10 07:31:24,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2022-01-10 07:31:24,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 96 states have (on average 1.0) internal successors, (96), 96 states have internal predecessors, (96), 240 states have call successors, (240), 1 states have call predecessors, (240), 1 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2022-01-10 07:31:24,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 576 transitions. [2022-01-10 07:31:24,145 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 576 transitions. Word has length 1293 [2022-01-10 07:31:24,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:31:24,145 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 576 transitions. [2022-01-10 07:31:24,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 2 states have call successors, (240), 2 states have call predecessors, (240), 2 states have return successors, (240), 2 states have call predecessors, (240), 2 states have call successors, (240) [2022-01-10 07:31:24,146 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 576 transitions. [2022-01-10 07:31:24,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1294 [2022-01-10 07:31:24,263 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:31:24,264 INFO L514 BasicCegarLoop]: trace histogram [240, 240, 240, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:24,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 07:31:24,481 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 07:31:24,482 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:31:24,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:31:24,482 INFO L85 PathProgramCache]: Analyzing trace with hash -328363669, now seen corresponding path program 1 times [2022-01-10 07:31:24,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:31:24,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [467266482] [2022-01-10 07:31:24,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:31:24,485 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:31:24,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:31:24,488 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 07:31:24,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process