/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/Haystacks-17.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 07:33:59,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 07:33:59,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 07:33:59,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 07:33:59,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 07:33:59,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 07:33:59,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 07:33:59,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 07:33:59,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 07:33:59,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 07:33:59,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 07:33:59,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 07:33:59,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 07:33:59,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 07:33:59,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 07:33:59,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 07:33:59,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 07:33:59,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 07:33:59,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 07:33:59,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 07:33:59,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 07:33:59,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 07:33:59,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 07:33:59,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 07:33:59,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 07:33:59,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 07:33:59,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 07:33:59,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 07:33:59,469 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 07:33:59,484 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 07:33:59,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 07:33:59,484 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 07:33:59,485 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 07:33:59,485 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 07:33:59,485 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 07:33:59,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 07:33:59,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 07:33:59,486 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 07:33:59,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 07:33:59,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 07:33:59,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 07:33:59,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 07:33:59,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 07:33:59,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 07:33:59,513 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 07:33:59,514 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 07:33:59,514 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 07:33:59,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 07:33:59,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 07:33:59,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 07:33:59,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 07:33:59,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 07:33:59,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 07:33:59,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 07:33:59,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 07:33:59,514 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 07:33:59,515 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 07:33:59,515 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 07:33:59,515 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 07:33:59,515 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 07:33:59,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 07:33:59,515 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 07:33:59,515 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 07:33:59,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 07:33:59,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 07:33:59,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 07:33:59,726 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 07:33:59,728 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 07:33:59,729 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/xcsp/Haystacks-17.c [2022-01-10 07:33:59,779 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6452a7d9/163bad86f60b470091b7cb55106e3aa6/FLAG418de2a03 [2022-01-10 07:34:00,268 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 07:34:00,268 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/xcsp/Haystacks-17.c [2022-01-10 07:34:00,281 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6452a7d9/163bad86f60b470091b7cb55106e3aa6/FLAG418de2a03 [2022-01-10 07:34:00,548 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6452a7d9/163bad86f60b470091b7cb55106e3aa6 [2022-01-10 07:34:00,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 07:34:00,551 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 07:34:00,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 07:34:00,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 07:34:00,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 07:34:00,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:34:00" (1/1) ... [2022-01-10 07:34:00,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3042347d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:34:00, skipping insertion in model container [2022-01-10 07:34:00,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:34:00" (1/1) ... [2022-01-10 07:34:00,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 07:34:00,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 07:34:01,087 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/Haystacks-17.c[124976,124989] [2022-01-10 07:34:01,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 07:34:01,109 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 07:34:01,211 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/Haystacks-17.c[124976,124989] [2022-01-10 07:34:01,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 07:34:01,227 INFO L208 MainTranslator]: Completed translation [2022-01-10 07:34:01,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:34:01 WrapperNode [2022-01-10 07:34:01,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 07:34:01,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 07:34:01,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 07:34:01,229 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 07:34:01,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:34:01" (1/1) ... [2022-01-10 07:34:01,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:34:01" (1/1) ... [2022-01-10 07:34:01,411 INFO L137 Inliner]: procedures = 13, calls = 3169, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 4046 [2022-01-10 07:34:01,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 07:34:01,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 07:34:01,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 07:34:01,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 07:34:01,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:34:01" (1/1) ... [2022-01-10 07:34:01,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:34:01" (1/1) ... [2022-01-10 07:34:01,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:34:01" (1/1) ... [2022-01-10 07:34:01,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:34:01" (1/1) ... [2022-01-10 07:34:01,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:34:01" (1/1) ... [2022-01-10 07:34:01,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:34:01" (1/1) ... [2022-01-10 07:34:01,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:34:01" (1/1) ... [2022-01-10 07:34:01,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 07:34:01,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 07:34:01,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 07:34:01,564 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 07:34:01,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:34:01" (1/1) ... [2022-01-10 07:34:01,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 07:34:01,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 07:34:01,588 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 07:34:01,612 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 07:34:01,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 07:34:01,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 07:34:01,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 07:34:01,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 07:34:01,624 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-01-10 07:34:01,624 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-01-10 07:34:01,823 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 07:34:01,824 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 07:34:03,298 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 07:34:03,319 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 07:34:03,319 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 07:34:03,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:34:03 BoogieIcfgContainer [2022-01-10 07:34:03,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 07:34:03,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 07:34:03,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 07:34:03,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 07:34:03,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 07:34:00" (1/3) ... [2022-01-10 07:34:03,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566b20dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:34:03, skipping insertion in model container [2022-01-10 07:34:03,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:34:01" (2/3) ... [2022-01-10 07:34:03,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566b20dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:34:03, skipping insertion in model container [2022-01-10 07:34:03,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:34:03" (3/3) ... [2022-01-10 07:34:03,329 INFO L111 eAbstractionObserver]: Analyzing ICFG Haystacks-17.c [2022-01-10 07:34:03,333 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 07:34:03,333 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 07:34:03,372 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 07:34:03,377 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 07:34:03,377 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 07:34:03,437 INFO L276 IsEmpty]: Start isEmpty. Operand has 3462 states, 297 states have (on average 1.0067340067340067) internal successors, (299), 298 states have internal predecessors, (299), 3162 states have call successors, (3162), 1 states have call predecessors, (3162), 1 states have return successors, (3162), 3162 states have call predecessors, (3162), 3162 states have call successors, (3162) [2022-01-10 07:34:04,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16103 [2022-01-10 07:34:04,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:34:04,671 INFO L514 BasicCegarLoop]: trace histogram [3162, 3162, 3162, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:34:04,672 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:34:04,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:34:04,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1190058368, now seen corresponding path program 1 times [2022-01-10 07:34:04,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:34:04,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464248721] [2022-01-10 07:34:04,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:34:04,714 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:34:04,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:34:04,716 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 07:34:04,722 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 07:34:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:34:18,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 22439 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 07:34:18,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:34:34,566 INFO L134 CoverageAnalysis]: Checked inductivity of 19990164 backedges. 3773218 proven. 0 refuted. 0 times theorem prover too weak. 16216946 trivial. 0 not checked. [2022-01-10 07:34:34,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:34:34,567 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:34:34,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464248721] [2022-01-10 07:34:34,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [464248721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:34:34,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:34:34,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 07:34:34,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83526518] [2022-01-10 07:34:34,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:34:34,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 07:34:34,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:34:34,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 07:34:34,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 07:34:34,612 INFO L87 Difference]: Start difference. First operand has 3462 states, 297 states have (on average 1.0067340067340067) internal successors, (299), 298 states have internal predecessors, (299), 3162 states have call successors, (3162), 1 states have call predecessors, (3162), 1 states have return successors, (3162), 3162 states have call predecessors, (3162), 3162 states have call successors, (3162) Second operand has 2 states, 2 states have (on average 149.5) internal successors, (299), 2 states have internal predecessors, (299), 2 states have call successors, (3162), 2 states have call predecessors, (3162), 2 states have return successors, (3162), 2 states have call predecessors, (3162), 2 states have call successors, (3162) [2022-01-10 07:34:34,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:34:34,841 INFO L93 Difference]: Finished difference Result 6918 states and 16402 transitions. [2022-01-10 07:34:34,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 07:34:34,855 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 149.5) internal successors, (299), 2 states have internal predecessors, (299), 2 states have call successors, (3162), 2 states have call predecessors, (3162), 2 states have return successors, (3162), 2 states have call predecessors, (3162), 2 states have call successors, (3162) Word has length 16102 [2022-01-10 07:34:34,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:34:34,896 INFO L225 Difference]: With dead ends: 6918 [2022-01-10 07:34:34,896 INFO L226 Difference]: Without dead ends: 3459 [2022-01-10 07:34:34,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16101 GetRequests, 16101 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 07:34:34,934 INFO L933 BasicCegarLoop]: 6619 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, 6619 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 07:34:34,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6619 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:34:34,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3459 states. [2022-01-10 07:34:38,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3459 to 3459. [2022-01-10 07:34:38,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3459 states, 295 states have (on average 1.0) internal successors, (295), 295 states have internal predecessors, (295), 3162 states have call successors, (3162), 1 states have call predecessors, (3162), 1 states have return successors, (3162), 3162 states have call predecessors, (3162), 3162 states have call successors, (3162) [2022-01-10 07:34:38,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 6619 transitions. [2022-01-10 07:34:38,505 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 6619 transitions. Word has length 16102 [2022-01-10 07:34:38,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:34:38,507 INFO L470 AbstractCegarLoop]: Abstraction has 3459 states and 6619 transitions. [2022-01-10 07:34:38,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 149.5) internal successors, (299), 2 states have internal predecessors, (299), 2 states have call successors, (3162), 2 states have call predecessors, (3162), 2 states have return successors, (3162), 2 states have call predecessors, (3162), 2 states have call successors, (3162) [2022-01-10 07:34:38,510 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 6619 transitions. [2022-01-10 07:34:39,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16103 [2022-01-10 07:34:40,000 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:34:40,005 INFO L514 BasicCegarLoop]: trace histogram [3162, 3162, 3162, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:34:40,212 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forcibly destroying the process [2022-01-10 07:34:40,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 137 [2022-01-10 07:34:40,392 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 07:34:40,392 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:34:40,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:34:40,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1019730880, now seen corresponding path program 1 times [2022-01-10 07:34:40,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:34:40,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1099223134] [2022-01-10 07:34:40,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:34:40,417 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:34:40,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:34:40,418 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 07:34:40,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process