/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_SUM.epf -i ../../../trunk/examples/svcomp/reducercommutativity/sep05-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 03:03:14,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 03:03:14,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 03:03:14,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-11 03:03:14,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 03:03:14,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 03:03:14,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 03:03:14,805 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 03:03:14,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 03:03:14,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 03:03:14,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 03:03:14,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 03:03:14,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 03:03:14,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 03:03:14,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 03:03:14,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 03:03:14,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 03:03:14,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 03:03:14,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 03:03:14,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 03:03:14,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 03:03:14,849 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 03:03:14,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 03:03:14,850 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 03:03:14,850 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 03:03:14,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 03:03:14,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 03:03:14,851 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 03:03:14,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 03:03:14,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 03:03:14,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 03:03:14,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 03:03:14,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 03:03:14,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 03:03:14,852 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 03:03:14,852 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 03:03:14,852 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 03:03:14,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 03:03:14,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 03:03:14,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 03:03:14,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 03:03:14,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 03:03:14,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 03:03:14,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 03:03:14,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 03:03:14,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 03:03:14,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 03:03:14,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 03:03:14,854 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 03:03:14,854 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 03:03:14,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 03:03:14,854 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 03:03:14,854 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 03:03:14,855 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 03:03:14,855 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 03:03:15,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 03:03:15,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 03:03:15,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 03:03:15,057 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 03:03:15,057 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 03:03:15,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/sep05-1.i [2022-01-11 03:03:15,114 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79282e271/885d958d3e8a46b888ef887d75f3ebc4/FLAGabb8ba0a0 [2022-01-11 03:03:15,420 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 03:03:15,421 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/sep05-1.i [2022-01-11 03:03:15,427 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79282e271/885d958d3e8a46b888ef887d75f3ebc4/FLAGabb8ba0a0 [2022-01-11 03:03:15,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79282e271/885d958d3e8a46b888ef887d75f3ebc4 [2022-01-11 03:03:15,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 03:03:15,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 03:03:15,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 03:03:15,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 03:03:15,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 03:03:15,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:03:15" (1/1) ... [2022-01-11 03:03:15,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@653428c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:03:15, skipping insertion in model container [2022-01-11 03:03:15,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:03:15" (1/1) ... [2022-01-11 03:03:15,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 03:03:15,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 03:03:16,011 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/sep05-1.i[1287,1300] [2022-01-11 03:03:16,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 03:03:16,022 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 03:03:16,049 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/sep05-1.i[1287,1300] [2022-01-11 03:03:16,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 03:03:16,063 INFO L208 MainTranslator]: Completed translation [2022-01-11 03:03:16,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:03:16 WrapperNode [2022-01-11 03:03:16,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 03:03:16,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 03:03:16,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 03:03:16,064 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 03:03:16,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:03:16" (1/1) ... [2022-01-11 03:03:16,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:03:16" (1/1) ... [2022-01-11 03:03:16,103 INFO L137 Inliner]: procedures = 18, calls = 22, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 129 [2022-01-11 03:03:16,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 03:03:16,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 03:03:16,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 03:03:16,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 03:03:16,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:03:16" (1/1) ... [2022-01-11 03:03:16,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:03:16" (1/1) ... [2022-01-11 03:03:16,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:03:16" (1/1) ... [2022-01-11 03:03:16,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:03:16" (1/1) ... [2022-01-11 03:03:16,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:03:16" (1/1) ... [2022-01-11 03:03:16,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:03:16" (1/1) ... [2022-01-11 03:03:16,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:03:16" (1/1) ... [2022-01-11 03:03:16,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 03:03:16,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 03:03:16,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 03:03:16,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 03:03:16,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:03:16" (1/1) ... [2022-01-11 03:03:16,143 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 03:03:16,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 03:03:16,163 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) [2022-01-11 03:03:16,169 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 [2022-01-11 03:03:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 03:03:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 03:03:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-11 03:03:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-11 03:03:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 03:03:16,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 03:03:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-11 03:03:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-11 03:03:16,228 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 03:03:16,229 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 03:03:16,397 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 03:03:16,401 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 03:03:16,402 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-01-11 03:03:16,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:03:16 BoogieIcfgContainer [2022-01-11 03:03:16,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 03:03:16,403 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 03:03:16,403 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 03:03:16,404 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 03:03:16,421 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:03:16" (1/1) ... [2022-01-11 03:03:16,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:03:16 BasicIcfg [2022-01-11 03:03:16,546 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 03:03:16,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 03:03:16,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 03:03:16,548 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 03:03:16,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 03:03:15" (1/4) ... [2022-01-11 03:03:16,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e9510fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:03:16, skipping insertion in model container [2022-01-11 03:03:16,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:03:16" (2/4) ... [2022-01-11 03:03:16,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e9510fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:03:16, skipping insertion in model container [2022-01-11 03:03:16,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:03:16" (3/4) ... [2022-01-11 03:03:16,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e9510fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 03:03:16, skipping insertion in model container [2022-01-11 03:03:16,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:03:16" (4/4) ... [2022-01-11 03:03:16,550 INFO L111 eAbstractionObserver]: Analyzing ICFG sep05-1.iTransformedIcfg [2022-01-11 03:03:16,553 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 03:03:16,553 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 03:03:16,586 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 03:03:16,590 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 [2022-01-11 03:03:16,590 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 03:03:16,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 29 states have internal predecessors, (43), 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) [2022-01-11 03:03:16,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-11 03:03:16,612 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:03:16,612 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:03:16,612 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:03:16,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:03:16,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1498124293, now seen corresponding path program 1 times [2022-01-11 03:03:16,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:03:16,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142483692] [2022-01-11 03:03:16,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:03:16,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:03:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:03:16,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:03:16,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:03:16,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142483692] [2022-01-11 03:03:16,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142483692] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:03:16,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:03:16,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 03:03:16,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653496841] [2022-01-11 03:03:16,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:03:16,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 03:03:16,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:03:16,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 03:03:16,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 03:03:16,794 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 29 states have internal predecessors, (43), 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 2 states, 2 states have (on average 8.5) internal successors, (17), 2 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) [2022-01-11 03:03:16,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:03:16,809 INFO L93 Difference]: Finished difference Result 56 states and 80 transitions. [2022-01-11 03:03:16,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 03:03:16,810 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 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 17 [2022-01-11 03:03:16,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:03:16,815 INFO L225 Difference]: With dead ends: 56 [2022-01-11 03:03:16,815 INFO L226 Difference]: Without dead ends: 26 [2022-01-11 03:03:16,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 03:03:16,827 INFO L933 BasicCegarLoop]: 37 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, 37 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 [2022-01-11 03:03:16,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 03:03:16,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-01-11 03:03:16,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-01-11 03:03:16,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 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) [2022-01-11 03:03:16,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2022-01-11 03:03:16,849 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 17 [2022-01-11 03:03:16,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:03:16,849 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2022-01-11 03:03:16,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 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) [2022-01-11 03:03:16,850 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-01-11 03:03:16,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-11 03:03:16,850 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:03:16,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:03:16,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 03:03:16,851 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:03:16,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:03:16,854 INFO L85 PathProgramCache]: Analyzing trace with hash 407938206, now seen corresponding path program 1 times [2022-01-11 03:03:16,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:03:16,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876410290] [2022-01-11 03:03:16,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:03:16,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:03:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:03:16,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:03:16,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:03:16,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876410290] [2022-01-11 03:03:16,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876410290] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:03:16,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:03:16,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:03:16,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780318589] [2022-01-11 03:03:16,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:03:16,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:03:16,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:03:16,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:03:16,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:03:16,944 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2022-01-11 03:03:16,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:03:16,954 INFO L93 Difference]: Finished difference Result 50 states and 64 transitions. [2022-01-11 03:03:16,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:03:16,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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 17 [2022-01-11 03:03:16,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:03:16,955 INFO L225 Difference]: With dead ends: 50 [2022-01-11 03:03:16,956 INFO L226 Difference]: Without dead ends: 28 [2022-01-11 03:03:16,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:03:16,957 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 1 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 03:03:16,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 60 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 03:03:16,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-01-11 03:03:16,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2022-01-11 03:03:16,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 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) [2022-01-11 03:03:16,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2022-01-11 03:03:16,961 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 17 [2022-01-11 03:03:16,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:03:16,961 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2022-01-11 03:03:16,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2022-01-11 03:03:16,961 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2022-01-11 03:03:16,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-11 03:03:16,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:03:16,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:03:16,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 03:03:16,962 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:03:16,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:03:16,962 INFO L85 PathProgramCache]: Analyzing trace with hash 929522460, now seen corresponding path program 1 times [2022-01-11 03:03:16,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:03:16,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629524348] [2022-01-11 03:03:16,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:03:16,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:03:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:03:17,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-11 03:03:17,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:03:17,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629524348] [2022-01-11 03:03:17,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629524348] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:03:17,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:03:17,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:03:17,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201601618] [2022-01-11 03:03:17,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:03:17,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:03:17,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:03:17,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:03:17,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:03:17,026 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-01-11 03:03:17,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:03:17,060 INFO L93 Difference]: Finished difference Result 54 states and 71 transitions. [2022-01-11 03:03:17,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:03:17,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2022-01-11 03:03:17,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:03:17,061 INFO L225 Difference]: With dead ends: 54 [2022-01-11 03:03:17,061 INFO L226 Difference]: Without dead ends: 36 [2022-01-11 03:03:17,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:03:17,063 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 9 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 03:03:17,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 48 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 03:03:17,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-01-11 03:03:17,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2022-01-11 03:03:17,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 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) [2022-01-11 03:03:17,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2022-01-11 03:03:17,066 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 19 [2022-01-11 03:03:17,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:03:17,067 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2022-01-11 03:03:17,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-01-11 03:03:17,067 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2022-01-11 03:03:17,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-11 03:03:17,068 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:03:17,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:03:17,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 03:03:17,068 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:03:17,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:03:17,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1994331623, now seen corresponding path program 1 times [2022-01-11 03:03:17,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:03:17,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569621298] [2022-01-11 03:03:17,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:03:17,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:03:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:03:17,184 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-11 03:03:17,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:03:17,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569621298] [2022-01-11 03:03:17,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569621298] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:03:17,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:03:17,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:03:17,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795532076] [2022-01-11 03:03:17,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:03:17,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:03:17,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:03:17,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:03:17,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:03:17,186 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2022-01-11 03:03:17,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:03:17,227 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2022-01-11 03:03:17,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:03:17,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 28 [2022-01-11 03:03:17,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:03:17,228 INFO L225 Difference]: With dead ends: 42 [2022-01-11 03:03:17,228 INFO L226 Difference]: Without dead ends: 32 [2022-01-11 03:03:17,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:03:17,229 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 1 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 03:03:17,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 59 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 03:03:17,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-01-11 03:03:17,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2022-01-11 03:03:17,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 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) [2022-01-11 03:03:17,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2022-01-11 03:03:17,233 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 28 [2022-01-11 03:03:17,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:03:17,233 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2022-01-11 03:03:17,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2022-01-11 03:03:17,234 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2022-01-11 03:03:17,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-11 03:03:17,234 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:03:17,234 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:03:17,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 03:03:17,234 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:03:17,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:03:17,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1116457673, now seen corresponding path program 1 times [2022-01-11 03:03:17,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:03:17,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890231626] [2022-01-11 03:03:17,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:03:17,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:03:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:03:17,323 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-11 03:03:17,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:03:17,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890231626] [2022-01-11 03:03:17,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890231626] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 03:03:17,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932632261] [2022-01-11 03:03:17,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:03:17,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 03:03:17,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 03:03:17,336 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) [2022-01-11 03:03:17,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 03:03:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:03:17,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 25 conjunts are in the unsatisfiable core [2022-01-11 03:03:17,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 03:03:18,865 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 03:03:18,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 03:03:59,098 WARN L838 $PredicateComparison]: unable to prove that (and (<= 0 (div (+ (* (- 1) |c_ULTIMATE.start_ULTIMATE.start_main_~ret~1#1Int|) 1) 4294967296)) (= (mod (div (mod (+ |c_ULTIMATE.start_ULTIMATE.start_sep_~ret~0#1Int| 1) 18446744073709551616) 1) 4294967296) |c_ULTIMATE.start_ULTIMATE.start_main_~ret~1#1Int|) (<= (div (* (- 1) (div (+ (- 1) |c_ULTIMATE.start_ULTIMATE.start_main_~ret~1#1Int|) (- 4294967296))) (- 4294967296)) (+ (div (* (- 1) (div (+ |c_ULTIMATE.start_ULTIMATE.start_main_~ret~1#1Int| (- 18446744073709551615)) (- 4294967296))) 4294967296) 1))) is different from false [2022-01-11 03:04:20,243 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod (div (mod (+ |c_ULTIMATE.start_ULTIMATE.start_sep_~ret~0#1Int| 1) 18446744073709551616) 1) 4294967296))) (and (<= 0 (div (+ (* (- 1) .cse0) 1) 4294967296)) (<= (div (* (- 1) (div (+ (- 1) .cse0) (- 4294967296))) (- 4294967296)) (+ 1 (div (* (- 1) (div (+ .cse0 (- 18446744073709551615)) (- 4294967296))) 4294967296))))) is different from false [2022-01-11 03:04:22,331 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (mod (div (mod (+ |c_ULTIMATE.start_ULTIMATE.start_sep_~ret~0#1Int| 1) 18446744073709551616) 1) 4294967296))) (and (<= 0 (div (+ (* (- 1) .cse0) 1) 4294967296)) (<= (div (* (- 1) (div (+ (- 1) .cse0) (- 4294967296))) (- 4294967296)) (+ 1 (div (* (- 1) (div (+ .cse0 (- 18446744073709551615)) (- 4294967296))) 4294967296))))) is different from true [2022-01-11 03:04:30,712 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2022-01-11 03:04:30,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932632261] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 03:04:30,713 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 03:04:30,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 13, 13] total 26 [2022-01-11 03:04:30,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677758709] [2022-01-11 03:04:30,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 03:04:30,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-11 03:04:30,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:04:30,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-11 03:04:30,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=453, Unknown=20, NotChecked=90, Total=650 [2022-01-11 03:04:30,715 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 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) [2022-01-11 03:04:32,847 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (mod (div (mod (+ |c_ULTIMATE.start_ULTIMATE.start_sep_~ret~0#1Int| 1) 18446744073709551616) 1) 4294967296))) (and (<= |c_ULTIMATE.start_ULTIMATE.start_sep_~ret~0#1Int| 0) (<= 0 (div (+ (* (- 1) .cse0) 1) 4294967296)) (<= 0 |c_ULTIMATE.start_ULTIMATE.start_sep_~ret~0#1Int|) (<= (div (* (- 1) (div (+ (- 1) .cse0) (- 4294967296))) (- 4294967296)) (+ 1 (div (* (- 1) (div (+ .cse0 (- 18446744073709551615)) (- 4294967296))) 4294967296))))) is different from true