/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/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/bitvector/jain_4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 20:07:20,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 20:07:20,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 20:07:20,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 20:07:20,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 20:07:20,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 20:07:20,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 20:07:20,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 20:07:20,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 20:07:20,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 20:07:20,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 20:07:20,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 20:07:20,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 20:07:20,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 20:07:20,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 20:07:20,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 20:07:20,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 20:07:20,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 20:07:20,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 20:07:20,955 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 20:07:20,959 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 20:07:20,976 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 20:07:20,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 20:07:20,977 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 20:07:20,977 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 20:07:20,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 20:07:20,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 20:07:20,978 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 20:07:20,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 20:07:20,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 20:07:20,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 20:07:20,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 20:07:20,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 20:07:20,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 20:07:20,978 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 20:07:20,978 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 20:07:20,978 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 20:07:20,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 20:07:20,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 20:07:20,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 20:07:20,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 20:07:20,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 20:07:20,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:07:20,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 20:07:20,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 20:07:20,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 20:07:20,979 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 20:07:20,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 20:07:20,980 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 20:07:20,980 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 20:07:20,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 20:07:20,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 20:07:20,980 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 20:07:20,981 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 20:07:20,981 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 20:07:21,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 20:07:21,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 20:07:21,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 20:07:21,227 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 20:07:21,227 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 20:07:21,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/jain_4-2.c [2022-01-10 20:07:21,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34c8cb8d2/715bb38cae3f4e3ba510cf147cfe7eb3/FLAG32e10d866 [2022-01-10 20:07:21,627 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 20:07:21,627 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_4-2.c [2022-01-10 20:07:21,631 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34c8cb8d2/715bb38cae3f4e3ba510cf147cfe7eb3/FLAG32e10d866 [2022-01-10 20:07:21,640 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34c8cb8d2/715bb38cae3f4e3ba510cf147cfe7eb3 [2022-01-10 20:07:21,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 20:07:21,643 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 20:07:21,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 20:07:21,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 20:07:21,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 20:07:21,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:07:21" (1/1) ... [2022-01-10 20:07:21,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e0c557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:07:21, skipping insertion in model container [2022-01-10 20:07:21,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:07:21" (1/1) ... [2022-01-10 20:07:21,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 20:07:21,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 20:07:21,762 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_4-2.c[675,688] [2022-01-10 20:07:21,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:07:21,784 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 20:07:21,791 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_4-2.c[675,688] [2022-01-10 20:07:21,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:07:21,801 INFO L208 MainTranslator]: Completed translation [2022-01-10 20:07:21,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:07:21 WrapperNode [2022-01-10 20:07:21,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 20:07:21,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 20:07:21,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 20:07:21,807 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 20:07:21,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:07:21" (1/1) ... [2022-01-10 20:07:21,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:07:21" (1/1) ... [2022-01-10 20:07:21,829 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-01-10 20:07:21,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 20:07:21,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 20:07:21,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 20:07:21,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 20:07:21,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:07:21" (1/1) ... [2022-01-10 20:07:21,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:07:21" (1/1) ... [2022-01-10 20:07:21,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:07:21" (1/1) ... [2022-01-10 20:07:21,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:07:21" (1/1) ... [2022-01-10 20:07:21,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:07:21" (1/1) ... [2022-01-10 20:07:21,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:07:21" (1/1) ... [2022-01-10 20:07:21,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:07:21" (1/1) ... [2022-01-10 20:07:21,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 20:07:21,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 20:07:21,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 20:07:21,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 20:07:21,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:07:21" (1/1) ... [2022-01-10 20:07:21,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:07:21,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:07:21,870 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 20:07:21,872 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 20:07:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 20:07:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 20:07:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 20:07:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 20:07:21,941 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 20:07:21,942 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 20:07:22,047 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 20:07:22,051 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 20:07:22,052 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 20:07:22,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:07:22 BoogieIcfgContainer [2022-01-10 20:07:22,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 20:07:22,053 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 20:07:22,054 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 20:07:22,054 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 20:07:22,056 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:07:22" (1/1) ... [2022-01-10 20:07:22,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:07:22 BasicIcfg [2022-01-10 20:07:22,105 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 20:07:22,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 20:07:22,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 20:07:22,108 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 20:07:22,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:07:21" (1/4) ... [2022-01-10 20:07:22,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485331a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:07:22, skipping insertion in model container [2022-01-10 20:07:22,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:07:21" (2/4) ... [2022-01-10 20:07:22,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485331a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:07:22, skipping insertion in model container [2022-01-10 20:07:22,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:07:22" (3/4) ... [2022-01-10 20:07:22,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485331a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:07:22, skipping insertion in model container [2022-01-10 20:07:22,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:07:22" (4/4) ... [2022-01-10 20:07:22,110 INFO L111 eAbstractionObserver]: Analyzing ICFG jain_4-2.cTransformedIcfg [2022-01-10 20:07:22,113 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 20:07:22,113 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 20:07:22,169 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 20:07:22,173 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 20:07:22,173 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 20:07:22,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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 20:07:22,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-01-10 20:07:22,184 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:07:22,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-01-10 20:07:22,184 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:07:22,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:07:22,187 INFO L85 PathProgramCache]: Analyzing trace with hash 57292131, now seen corresponding path program 1 times [2022-01-10 20:07:22,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:07:22,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397991654] [2022-01-10 20:07:22,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:07:22,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:07:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:07:22,402 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 20:07:22,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:07:22,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397991654] [2022-01-10 20:07:22,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397991654] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:07:22,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:07:22,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 20:07:22,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872312538] [2022-01-10 20:07:22,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:07:22,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 20:07:22,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:07:22,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 20:07:22,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 20:07:22,428 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 20:07:22,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:07:22,467 INFO L93 Difference]: Finished difference Result 18 states and 26 transitions. [2022-01-10 20:07:22,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 20:07:22,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-01-10 20:07:22,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:07:22,474 INFO L225 Difference]: With dead ends: 18 [2022-01-10 20:07:22,474 INFO L226 Difference]: Without dead ends: 9 [2022-01-10 20:07:22,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 20:07:22,478 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:07:22,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:07:22,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-01-10 20:07:22,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-01-10 20:07:22,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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 20:07:22,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-01-10 20:07:22,498 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-01-10 20:07:22,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:07:22,498 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-01-10 20:07:22,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 20:07:22,498 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-01-10 20:07:22,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-10 20:07:22,499 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:07:22,499 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-01-10 20:07:22,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 20:07:22,500 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:07:22,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:07:22,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1688875041, now seen corresponding path program 1 times [2022-01-10 20:07:22,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:07:22,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370682767] [2022-01-10 20:07:22,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:07:22,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:07:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:07:22,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:07:22,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:07:22,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370682767] [2022-01-10 20:07:22,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370682767] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 20:07:22,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205548320] [2022-01-10 20:07:22,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:07:22,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:07:22,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:07:22,680 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 20:07:22,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 20:07:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:07:25,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 23 conjunts are in the unsatisfiable core [2022-01-10 20:07:25,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:07:26,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:07:26,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 20:07:45,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:07:45,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205548320] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 20:07:45,408 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 20:07:45,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2022-01-10 20:07:45,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129754622] [2022-01-10 20:07:45,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 20:07:45,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 20:07:45,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:07:45,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 20:07:45,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=31, Unknown=3, NotChecked=0, Total=56 [2022-01-10 20:07:45,410 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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 20:07:47,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:07:47,503 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-01-10 20:07:47,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 20:07:47,503 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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 8 [2022-01-10 20:07:47,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:07:47,504 INFO L225 Difference]: With dead ends: 17 [2022-01-10 20:07:47,504 INFO L226 Difference]: Without dead ends: 15 [2022-01-10 20:07:47,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=34, Invalid=52, Unknown=4, NotChecked=0, Total=90 [2022-01-10 20:07:47,505 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 1 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:07:47,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 22 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 9 Unchecked, 0.0s Time] [2022-01-10 20:07:47,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-01-10 20:07:47,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-01-10 20:07:47,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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 20:07:47,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-01-10 20:07:47,509 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-01-10 20:07:47,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:07:47,509 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-01-10 20:07:47,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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 20:07:47,509 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-01-10 20:07:47,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-10 20:07:47,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:07:47,509 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-01-10 20:07:47,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-10 20:07:47,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:07:47,710 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:07:47,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:07:47,711 INFO L85 PathProgramCache]: Analyzing trace with hash -943535903, now seen corresponding path program 2 times [2022-01-10 20:07:47,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:07:47,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572788243] [2022-01-10 20:07:47,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:07:47,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:07:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:07:47,851 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 20:07:47,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:07:47,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572788243] [2022-01-10 20:07:47,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572788243] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 20:07:47,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405667325] [2022-01-10 20:07:47,852 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 20:07:47,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:07:47,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:07:47,854 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 20:07:47,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process