/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/xcsp/AllInterval-006.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 01:50:10,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 01:50:10,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 01:50:10,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 01:50:10,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 01:50:10,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 01:50:10,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 01:50:10,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 01:50:10,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 01:50:10,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 01:50:10,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 01:50:10,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 01:50:10,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 01:50:10,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 01:50:10,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 01:50:10,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 01:50:10,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 01:50:10,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 01:50:10,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 01:50:10,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 01:50:10,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 01:50:10,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 01:50:10,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 01:50:10,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 01:50:10,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 01:50:10,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 01:50:10,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 01:50:10,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 01:50:10,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 01:50:10,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 01:50:10,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 01:50:10,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 01:50:10,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 01:50:10,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 01:50:10,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 01:50:10,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 01:50:10,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 01:50:10,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 01:50:10,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 01:50:10,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 01:50:10,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 01:50:10,966 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-10 01:50:10,996 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 01:50:10,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 01:50:10,997 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 01:50:10,997 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 01:50:10,997 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 01:50:10,997 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 01:50:10,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 01:50:10,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 01:50:10,998 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 01:50:10,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 01:50:10,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 01:50:10,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 01:50:10,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 01:50:10,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 01:50:10,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 01:50:10,999 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 01:50:10,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 01:50:10,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 01:50:10,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 01:50:10,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 01:50:11,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 01:50:11,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:50:11,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 01:50:11,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 01:50:11,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 01:50:11,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 01:50:11,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 01:50:11,000 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 01:50:11,001 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 01:50:11,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 01:50:11,001 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 01:50:11,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 01:50:11,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 01:50:11,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 01:50:11,188 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 01:50:11,191 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 01:50:11,192 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/xcsp/AllInterval-006.c [2022-01-10 01:50:11,262 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/638b881fe/02b1f553329e452ba34e177d0000d4b1/FLAGe56cfdfaa [2022-01-10 01:50:11,618 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 01:50:11,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/xcsp/AllInterval-006.c [2022-01-10 01:50:11,622 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/638b881fe/02b1f553329e452ba34e177d0000d4b1/FLAGe56cfdfaa [2022-01-10 01:50:11,631 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/638b881fe/02b1f553329e452ba34e177d0000d4b1 [2022-01-10 01:50:11,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 01:50:11,634 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 01:50:11,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 01:50:11,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 01:50:11,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 01:50:11,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:50:11" (1/1) ... [2022-01-10 01:50:11,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e42cb19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:50:11, skipping insertion in model container [2022-01-10 01:50:11,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:50:11" (1/1) ... [2022-01-10 01:50:11,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 01:50:11,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 01:50:11,779 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/xcsp/AllInterval-006.c[3098,3111] [2022-01-10 01:50:11,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:50:11,786 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 01:50:11,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/xcsp/AllInterval-006.c[3098,3111] [2022-01-10 01:50:11,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:50:11,812 INFO L208 MainTranslator]: Completed translation [2022-01-10 01:50:11,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:50:11 WrapperNode [2022-01-10 01:50:11,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 01:50:11,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 01:50:11,813 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 01:50:11,813 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 01:50:11,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:50:11" (1/1) ... [2022-01-10 01:50:11,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:50:11" (1/1) ... [2022-01-10 01:50:11,840 INFO L137 Inliner]: procedures = 13, calls = 59, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 144 [2022-01-10 01:50:11,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 01:50:11,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 01:50:11,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 01:50:11,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 01:50:11,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:50:11" (1/1) ... [2022-01-10 01:50:11,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:50:11" (1/1) ... [2022-01-10 01:50:11,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:50:11" (1/1) ... [2022-01-10 01:50:11,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:50:11" (1/1) ... [2022-01-10 01:50:11,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:50:11" (1/1) ... [2022-01-10 01:50:11,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:50:11" (1/1) ... [2022-01-10 01:50:11,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:50:11" (1/1) ... [2022-01-10 01:50:11,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 01:50:11,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 01:50:11,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 01:50:11,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 01:50:11,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:50:11" (1/1) ... [2022-01-10 01:50:11,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:50:11,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 01:50:11,879 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 01:50:11,880 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 01:50:11,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 01:50:11,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 01:50:11,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 01:50:11,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 01:50:11,914 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-01-10 01:50:11,914 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-01-10 01:50:11,955 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 01:50:11,956 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 01:50:12,119 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 01:50:12,124 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 01:50:12,124 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 01:50:12,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:50:12 BoogieIcfgContainer [2022-01-10 01:50:12,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 01:50:12,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 01:50:12,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 01:50:12,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 01:50:12,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:50:11" (1/3) ... [2022-01-10 01:50:12,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726350aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:50:12, skipping insertion in model container [2022-01-10 01:50:12,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:50:11" (2/3) ... [2022-01-10 01:50:12,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726350aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:50:12, skipping insertion in model container [2022-01-10 01:50:12,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:50:12" (3/3) ... [2022-01-10 01:50:12,139 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-006.c [2022-01-10 01:50:12,142 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 01:50:12,143 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 01:50:12,170 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 01:50:12,174 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 01:50:12,174 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 01:50:12,190 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 35 states have internal predecessors, (41), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-01-10 01:50:12,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-01-10 01:50:12,208 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:50:12,209 INFO L514 BasicCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:50:12,209 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:50:12,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:50:12,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1899664910, now seen corresponding path program 1 times [2022-01-10 01:50:12,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:50:12,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624609073] [2022-01-10 01:50:12,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:50:12,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:50:12,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-01-10 01:50:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-10 01:50:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-01-10 01:50:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-01-10 01:50:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-01-10 01:50:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-01-10 01:50:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-01-10 01:50:12,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-01-10 01:50:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-01-10 01:50:12,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 01:50:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-01-10 01:50:12,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-01-10 01:50:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-01-10 01:50:12,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-01-10 01:50:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-10 01:50:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-01-10 01:50:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-01-10 01:50:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-10 01:50:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-01-10 01:50:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-01-10 01:50:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-01-10 01:50:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-01-10 01:50:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-01-10 01:50:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-01-10 01:50:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-01-10 01:50:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-01-10 01:50:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-10 01:50:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-01-10 01:50:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-01-10 01:50:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-01-10 01:50:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-01-10 01:50:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-01-10 01:50:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-01-10 01:50:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-01-10 01:50:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-10 01:50:12,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-01-10 01:50:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-01-10 01:50:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-01-10 01:50:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-01-10 01:50:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-01-10 01:50:12,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-01-10 01:50:12,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-01-10 01:50:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-10 01:50:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-01-10 01:50:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-01-10 01:50:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-01-10 01:50:12,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-01-10 01:50:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-01-10 01:50:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-01-10 01:50:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-01-10 01:50:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-01-10 01:50:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-01-10 01:50:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:12,760 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2022-01-10 01:50:12,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:50:12,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624609073] [2022-01-10 01:50:12,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624609073] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:50:12,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:50:12,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 01:50:12,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163430958] [2022-01-10 01:50:12,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:50:12,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 01:50:12,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:50:12,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 01:50:12,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 01:50:12,787 INFO L87 Difference]: Start difference. First operand has 89 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 35 states have internal predecessors, (41), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52) [2022-01-10 01:50:12,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:50:12,836 INFO L93 Difference]: Finished difference Result 172 states and 336 transitions. [2022-01-10 01:50:12,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 01:50:12,838 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52) Word has length 289 [2022-01-10 01:50:12,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:50:12,845 INFO L225 Difference]: With dead ends: 172 [2022-01-10 01:50:12,846 INFO L226 Difference]: Without dead ends: 86 [2022-01-10 01:50:12,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 01:50:12,859 INFO L933 BasicCegarLoop]: 141 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, 141 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:50:12,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:50:12,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-01-10 01:50:12,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-01-10 01:50:12,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 32 states have (on average 1.15625) internal successors, (37), 32 states have internal predecessors, (37), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-01-10 01:50:12,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 141 transitions. [2022-01-10 01:50:12,916 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 141 transitions. Word has length 289 [2022-01-10 01:50:12,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:50:12,917 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 141 transitions. [2022-01-10 01:50:12,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52) [2022-01-10 01:50:12,918 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 141 transitions. [2022-01-10 01:50:12,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-01-10 01:50:12,929 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:50:12,930 INFO L514 BasicCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:50:12,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 01:50:12,930 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:50:12,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:50:12,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1263147558, now seen corresponding path program 1 times [2022-01-10 01:50:12,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:50:12,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561662654] [2022-01-10 01:50:12,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:50:12,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:50:13,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-01-10 01:50:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-10 01:50:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-01-10 01:50:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-01-10 01:50:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-01-10 01:50:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-01-10 01:50:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-01-10 01:50:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-01-10 01:50:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-01-10 01:50:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 01:50:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-01-10 01:50:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-01-10 01:50:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-01-10 01:50:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-01-10 01:50:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-10 01:50:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-01-10 01:50:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-01-10 01:50:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-10 01:50:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-01-10 01:50:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-01-10 01:50:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-01-10 01:50:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-01-10 01:50:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-01-10 01:50:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-01-10 01:50:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-01-10 01:50:14,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-01-10 01:50:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-10 01:50:14,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-01-10 01:50:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-01-10 01:50:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:14,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-01-10 01:50:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-01-10 01:50:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-01-10 01:50:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-01-10 01:50:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-01-10 01:50:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-10 01:50:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-01-10 01:50:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-01-10 01:50:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-01-10 01:50:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-01-10 01:50:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-01-10 01:50:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-01-10 01:50:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-01-10 01:50:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-10 01:50:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-01-10 01:50:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-01-10 01:50:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-01-10 01:50:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-01-10 01:50:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-01-10 01:50:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-01-10 01:50:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-01-10 01:50:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-01-10 01:50:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-01-10 01:50:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,201 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 948 proven. 573 refuted. 0 times theorem prover too weak. 3783 trivial. 0 not checked. [2022-01-10 01:50:15,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:50:15,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561662654] [2022-01-10 01:50:15,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561662654] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 01:50:15,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43317805] [2022-01-10 01:50:15,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:50:15,203 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 01:50:15,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 01:50:15,204 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 01:50:15,227 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 01:50:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:15,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 82 conjunts are in the unsatisfiable core [2022-01-10 01:50:15,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 01:50:17,522 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 981 proven. 543 refuted. 0 times theorem prover too weak. 3780 trivial. 0 not checked. [2022-01-10 01:50:17,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 01:50:19,763 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 777 proven. 576 refuted. 0 times theorem prover too weak. 3951 trivial. 0 not checked. [2022-01-10 01:50:19,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43317805] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 01:50:19,763 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 01:50:19,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 25, 27] total 72 [2022-01-10 01:50:19,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874312812] [2022-01-10 01:50:19,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 01:50:19,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-01-10 01:50:19,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:50:19,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-01-10 01:50:19,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=4728, Unknown=0, NotChecked=0, Total=5112 [2022-01-10 01:50:19,768 INFO L87 Difference]: Start difference. First operand 86 states and 141 transitions. Second operand has 72 states, 55 states have (on average 1.4363636363636363) internal successors, (79), 49 states have internal predecessors, (79), 41 states have call successors, (136), 2 states have call predecessors, (136), 3 states have return successors, (137), 38 states have call predecessors, (137), 41 states have call successors, (137) [2022-01-10 01:50:28,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:50:28,022 INFO L93 Difference]: Finished difference Result 160 states and 234 transitions. [2022-01-10 01:50:28,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-10 01:50:28,023 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 55 states have (on average 1.4363636363636363) internal successors, (79), 49 states have internal predecessors, (79), 41 states have call successors, (136), 2 states have call predecessors, (136), 3 states have return successors, (137), 38 states have call predecessors, (137), 41 states have call successors, (137) Word has length 289 [2022-01-10 01:50:28,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:50:28,031 INFO L225 Difference]: With dead ends: 160 [2022-01-10 01:50:28,031 INFO L226 Difference]: Without dead ends: 152 [2022-01-10 01:50:28,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 765 GetRequests, 652 SyntacticMatches, 3 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2066 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=2419, Invalid=10013, Unknown=0, NotChecked=0, Total=12432 [2022-01-10 01:50:28,036 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 528 mSDsluCounter, 2744 mSDsCounter, 0 mSdLazyCounter, 2970 mSolverCounterSat, 719 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 2836 SdHoareTripleChecker+Invalid, 3689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 719 IncrementalHoareTripleChecker+Valid, 2970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:50:28,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [529 Valid, 2836 Invalid, 3689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [719 Valid, 2970 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-01-10 01:50:28,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-01-10 01:50:28,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 102. [2022-01-10 01:50:28,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 44 states have internal predecessors, (52), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-01-10 01:50:28,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 164 transitions. [2022-01-10 01:50:28,069 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 164 transitions. Word has length 289 [2022-01-10 01:50:28,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:50:28,071 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 164 transitions. [2022-01-10 01:50:28,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 55 states have (on average 1.4363636363636363) internal successors, (79), 49 states have internal predecessors, (79), 41 states have call successors, (136), 2 states have call predecessors, (136), 3 states have return successors, (137), 38 states have call predecessors, (137), 41 states have call successors, (137) [2022-01-10 01:50:28,072 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 164 transitions. [2022-01-10 01:50:28,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-01-10 01:50:28,080 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:50:28,080 INFO L514 BasicCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:50:28,111 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 01:50:28,298 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 01:50:28,298 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:50:28,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:50:28,298 INFO L85 PathProgramCache]: Analyzing trace with hash 453800932, now seen corresponding path program 1 times [2022-01-10 01:50:28,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:50:28,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809850934] [2022-01-10 01:50:28,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:50:28,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:50:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-01-10 01:50:30,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-10 01:50:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-01-10 01:50:30,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-01-10 01:50:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-01-10 01:50:30,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-01-10 01:50:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-01-10 01:50:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-01-10 01:50:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-01-10 01:50:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 01:50:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-01-10 01:50:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-01-10 01:50:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-01-10 01:50:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-01-10 01:50:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-10 01:50:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-01-10 01:50:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-01-10 01:50:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-10 01:50:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-01-10 01:50:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-01-10 01:50:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-01-10 01:50:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-01-10 01:50:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-01-10 01:50:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-01-10 01:50:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-01-10 01:50:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-01-10 01:50:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-10 01:50:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-01-10 01:50:30,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-01-10 01:50:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-01-10 01:50:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-01-10 01:50:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-01-10 01:50:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-01-10 01:50:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-01-10 01:50:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-10 01:50:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-01-10 01:50:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-01-10 01:50:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-01-10 01:50:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-01-10 01:50:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-01-10 01:50:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-01-10 01:50:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-01-10 01:50:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-10 01:50:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-01-10 01:50:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-01-10 01:50:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-01-10 01:50:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-01-10 01:50:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-01-10 01:50:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-01-10 01:50:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-01-10 01:50:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-01-10 01:50:30,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-01-10 01:50:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:30,964 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 960 proven. 393 refuted. 0 times theorem prover too weak. 3951 trivial. 0 not checked. [2022-01-10 01:50:30,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:50:30,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809850934] [2022-01-10 01:50:30,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809850934] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 01:50:30,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458142086] [2022-01-10 01:50:30,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:50:30,968 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 01:50:30,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 01:50:30,969 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 01:50:30,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 01:50:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:31,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 80 conjunts are in the unsatisfiable core [2022-01-10 01:50:31,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 01:50:32,874 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 1113 proven. 495 refuted. 0 times theorem prover too weak. 3696 trivial. 0 not checked. [2022-01-10 01:50:32,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 01:50:35,379 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 909 proven. 531 refuted. 0 times theorem prover too weak. 3864 trivial. 0 not checked. [2022-01-10 01:50:35,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458142086] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 01:50:35,379 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 01:50:35,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 25, 27] total 71 [2022-01-10 01:50:35,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100029323] [2022-01-10 01:50:35,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 01:50:35,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-01-10 01:50:35,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:50:35,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-01-10 01:50:35,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=383, Invalid=4587, Unknown=0, NotChecked=0, Total=4970 [2022-01-10 01:50:35,383 INFO L87 Difference]: Start difference. First operand 102 states and 164 transitions. Second operand has 71 states, 51 states have (on average 1.607843137254902) internal successors, (82), 49 states have internal predecessors, (82), 39 states have call successors, (143), 2 states have call predecessors, (143), 3 states have return successors, (144), 36 states have call predecessors, (144), 39 states have call successors, (144) [2022-01-10 01:50:47,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:50:47,321 INFO L93 Difference]: Finished difference Result 156 states and 229 transitions. [2022-01-10 01:50:47,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-10 01:50:47,322 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 51 states have (on average 1.607843137254902) internal successors, (82), 49 states have internal predecessors, (82), 39 states have call successors, (143), 2 states have call predecessors, (143), 3 states have return successors, (144), 36 states have call predecessors, (144), 39 states have call successors, (144) Word has length 289 [2022-01-10 01:50:47,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:50:47,323 INFO L225 Difference]: With dead ends: 156 [2022-01-10 01:50:47,323 INFO L226 Difference]: Without dead ends: 144 [2022-01-10 01:50:47,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 760 GetRequests, 647 SyntacticMatches, 2 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2680 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=2500, Invalid=10156, Unknown=0, NotChecked=0, Total=12656 [2022-01-10 01:50:47,326 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 421 mSDsluCounter, 2355 mSDsCounter, 0 mSdLazyCounter, 2569 mSolverCounterSat, 657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 2442 SdHoareTripleChecker+Invalid, 3226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 2569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:50:47,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [425 Valid, 2442 Invalid, 3226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [657 Valid, 2569 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-01-10 01:50:47,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-01-10 01:50:47,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 98. [2022-01-10 01:50:47,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 41 states have (on average 1.170731707317073) internal successors, (48), 41 states have internal predecessors, (48), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-01-10 01:50:47,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 158 transitions. [2022-01-10 01:50:47,346 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 158 transitions. Word has length 289 [2022-01-10 01:50:47,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:50:47,347 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 158 transitions. [2022-01-10 01:50:47,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 51 states have (on average 1.607843137254902) internal successors, (82), 49 states have internal predecessors, (82), 39 states have call successors, (143), 2 states have call predecessors, (143), 3 states have return successors, (144), 36 states have call predecessors, (144), 39 states have call successors, (144) [2022-01-10 01:50:47,347 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 158 transitions. [2022-01-10 01:50:47,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-01-10 01:50:47,349 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:50:47,349 INFO L514 BasicCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:50:47,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-10 01:50:47,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-01-10 01:50:47,563 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:50:47,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:50:47,564 INFO L85 PathProgramCache]: Analyzing trace with hash 242079204, now seen corresponding path program 1 times [2022-01-10 01:50:47,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:50:47,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554622042] [2022-01-10 01:50:47,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:50:47,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:50:47,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-01-10 01:50:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-10 01:50:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-01-10 01:50:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-01-10 01:50:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-01-10 01:50:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-01-10 01:50:49,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-01-10 01:50:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-01-10 01:50:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-01-10 01:50:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 01:50:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-01-10 01:50:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-01-10 01:50:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-01-10 01:50:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-01-10 01:50:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-10 01:50:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-01-10 01:50:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-01-10 01:50:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-10 01:50:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-01-10 01:50:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-01-10 01:50:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-01-10 01:50:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-01-10 01:50:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-01-10 01:50:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-01-10 01:50:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-01-10 01:50:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-01-10 01:50:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-10 01:50:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-01-10 01:50:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-01-10 01:50:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-01-10 01:50:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-01-10 01:50:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-01-10 01:50:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-01-10 01:50:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-01-10 01:50:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-10 01:50:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-01-10 01:50:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-01-10 01:50:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-01-10 01:50:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-01-10 01:50:49,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-01-10 01:50:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-01-10 01:50:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-01-10 01:50:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-10 01:50:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-01-10 01:50:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-01-10 01:50:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-01-10 01:50:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-01-10 01:50:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-01-10 01:50:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-01-10 01:50:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-01-10 01:50:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-01-10 01:50:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-01-10 01:50:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,476 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 855 proven. 585 refuted. 0 times theorem prover too weak. 3864 trivial. 0 not checked. [2022-01-10 01:50:49,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:50:49,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554622042] [2022-01-10 01:50:49,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554622042] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 01:50:49,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516604389] [2022-01-10 01:50:49,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:50:49,477 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 01:50:49,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 01:50:49,484 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 01:50:49,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-10 01:50:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:49,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 76 conjunts are in the unsatisfiable core [2022-01-10 01:50:49,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 01:50:51,565 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 1276 proven. 411 refuted. 0 times theorem prover too weak. 3617 trivial. 0 not checked. [2022-01-10 01:50:51,565 INFO L328 TraceCheckSpWp]: Computing backward predicates...