/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 02:01:06,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 02:01:06,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 02:01:06,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 02:01:06,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 02:01:06,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 02:01:06,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 02:01:06,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 02:01:06,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 02:01:06,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 02:01:06,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 02:01:06,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 02:01:06,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 02:01:06,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 02:01:06,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 02:01:06,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 02:01:06,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 02:01:06,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 02:01:06,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 02:01:06,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 02:01:06,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 02:01:06,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 02:01:06,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 02:01:06,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 02:01:06,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-31 02:01:06,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 02:01:06,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 02:01:06,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 02:01:06,672 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-31 02:01:06,694 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 02:01:06,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 02:01:06,695 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 02:01:06,695 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 02:01:06,696 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 02:01:06,696 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 02:01:06,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 02:01:06,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 02:01:06,697 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 02:01:06,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 02:01:06,698 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 02:01:06,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 02:01:06,698 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 02:01:06,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 02:01:06,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 02:01:06,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 02:01:06,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 02:01:06,698 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 02:01:06,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 02:01:06,698 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 02:01:06,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 02:01:06,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 02:01:06,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 02:01:06,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 02:01:06,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 02:01:06,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 02:01:06,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 02:01:06,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 02:01:06,699 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 02:01:06,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 02:01:06,699 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 02:01:06,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 02:01:06,700 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 02:01:06,700 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 02:01:06,700 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 02:01:06,700 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 02:01:06,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 02:01:06,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 02:01:06,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 02:01:06,913 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 02:01:06,913 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 02:01:06,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2023-03-31 02:01:07,924 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 02:01:08,139 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 02:01:08,140 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2023-03-31 02:01:08,153 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb199944a/a841bd144eac48c99542a8d4d557de4d/FLAG0829f134e [2023-03-31 02:01:08,163 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb199944a/a841bd144eac48c99542a8d4d557de4d [2023-03-31 02:01:08,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 02:01:08,166 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 02:01:08,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 02:01:08,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 02:01:08,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 02:01:08,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 02:01:08" (1/1) ... [2023-03-31 02:01:08,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@250ec76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:01:08, skipping insertion in model container [2023-03-31 02:01:08,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 02:01:08" (1/1) ... [2023-03-31 02:01:08,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 02:01:08,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 02:01:08,411 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[13490,13503] [2023-03-31 02:01:08,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 02:01:08,497 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 02:01:08,576 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[13490,13503] [2023-03-31 02:01:08,611 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 02:01:08,625 INFO L208 MainTranslator]: Completed translation [2023-03-31 02:01:08,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:01:08 WrapperNode [2023-03-31 02:01:08,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 02:01:08,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 02:01:08,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 02:01:08,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 02:01:08,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:01:08" (1/1) ... [2023-03-31 02:01:08,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:01:08" (1/1) ... [2023-03-31 02:01:08,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:01:08" (1/1) ... [2023-03-31 02:01:08,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:01:08" (1/1) ... [2023-03-31 02:01:08,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:01:08" (1/1) ... [2023-03-31 02:01:08,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:01:08" (1/1) ... [2023-03-31 02:01:08,704 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:01:08" (1/1) ... [2023-03-31 02:01:08,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:01:08" (1/1) ... [2023-03-31 02:01:08,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 02:01:08,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 02:01:08,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 02:01:08,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 02:01:08,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:01:08" (1/1) ... [2023-03-31 02:01:08,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 02:01:08,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 02:01:08,751 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) [2023-03-31 02:01:08,773 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 [2023-03-31 02:01:08,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 02:01:08,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 02:01:08,786 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 02:01:08,786 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 02:01:08,786 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 02:01:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 02:01:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 02:01:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 02:01:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 02:01:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-31 02:01:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-03-31 02:01:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 02:01:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-31 02:01:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 02:01:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-03-31 02:01:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-03-31 02:01:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-03-31 02:01:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-03-31 02:01:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-03-31 02:01:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-03-31 02:01:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-03-31 02:01:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-03-31 02:01:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 02:01:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 02:01:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 02:01:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 02:01:08,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 02:01:08,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 02:01:08,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 02:01:09,001 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 02:01:09,003 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 02:01:09,753 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 02:01:09,760 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 02:01:09,760 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-03-31 02:01:09,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 02:01:09 BoogieIcfgContainer [2023-03-31 02:01:09,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 02:01:09,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 02:01:09,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 02:01:09,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 02:01:09,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 02:01:08" (1/3) ... [2023-03-31 02:01:09,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db2fe0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 02:01:09, skipping insertion in model container [2023-03-31 02:01:09,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:01:08" (2/3) ... [2023-03-31 02:01:09,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db2fe0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 02:01:09, skipping insertion in model container [2023-03-31 02:01:09,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 02:01:09" (3/3) ... [2023-03-31 02:01:09,768 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2023-03-31 02:01:09,780 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 02:01:09,780 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 02:01:09,816 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 02:01:09,821 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1c7a8c47, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 02:01:09,821 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 02:01:09,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 350 states, 337 states have (on average 1.7774480712166172) internal successors, (599), 345 states have internal predecessors, (599), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-31 02:01:09,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-03-31 02:01:09,837 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:01:09,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:01:09,838 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:01:09,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:01:09,842 INFO L85 PathProgramCache]: Analyzing trace with hash -225804099, now seen corresponding path program 1 times [2023-03-31 02:01:09,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:01:09,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867003774] [2023-03-31 02:01:09,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:01:09,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:01:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:10,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:01:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:10,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:01:10,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:01:10,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867003774] [2023-03-31 02:01:10,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867003774] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:01:10,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:01:10,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-31 02:01:10,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307676446] [2023-03-31 02:01:10,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:01:10,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 02:01:10,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:01:10,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 02:01:10,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-03-31 02:01:10,742 INFO L87 Difference]: Start difference. First operand has 350 states, 337 states have (on average 1.7774480712166172) internal successors, (599), 345 states have internal predecessors, (599), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:12,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:01:12,301 INFO L93 Difference]: Finished difference Result 666 states and 1107 transitions. [2023-03-31 02:01:12,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 02:01:12,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2023-03-31 02:01:12,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:01:12,312 INFO L225 Difference]: With dead ends: 666 [2023-03-31 02:01:12,312 INFO L226 Difference]: Without dead ends: 480 [2023-03-31 02:01:12,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-03-31 02:01:12,317 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 258 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-03-31 02:01:12,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 1132 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-03-31 02:01:12,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-03-31 02:01:12,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 477. [2023-03-31 02:01:12,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 473 states have (on average 1.6405919661733614) internal successors, (776), 473 states have internal predecessors, (776), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:12,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 779 transitions. [2023-03-31 02:01:12,373 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 779 transitions. Word has length 110 [2023-03-31 02:01:12,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:01:12,373 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 779 transitions. [2023-03-31 02:01:12,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:12,374 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 779 transitions. [2023-03-31 02:01:12,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-03-31 02:01:12,377 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:01:12,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:01:12,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 02:01:12,377 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:01:12,378 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:01:12,378 INFO L85 PathProgramCache]: Analyzing trace with hash 8828958, now seen corresponding path program 1 times [2023-03-31 02:01:12,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:01:12,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301061786] [2023-03-31 02:01:12,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:01:12,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:01:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:12,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:01:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:12,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:01:12,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:01:12,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301061786] [2023-03-31 02:01:12,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301061786] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:01:12,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:01:12,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-31 02:01:12,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296243828] [2023-03-31 02:01:12,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:01:12,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 02:01:12,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:01:12,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 02:01:12,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-03-31 02:01:12,819 INFO L87 Difference]: Start difference. First operand 477 states and 779 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:14,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:01:14,111 INFO L93 Difference]: Finished difference Result 1041 states and 1691 transitions. [2023-03-31 02:01:14,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 02:01:14,111 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2023-03-31 02:01:14,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:01:14,114 INFO L225 Difference]: With dead ends: 1041 [2023-03-31 02:01:14,115 INFO L226 Difference]: Without dead ends: 749 [2023-03-31 02:01:14,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-03-31 02:01:14,117 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 223 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-03-31 02:01:14,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 1070 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-03-31 02:01:14,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2023-03-31 02:01:14,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 745. [2023-03-31 02:01:14,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 741 states have (on average 1.6288798920377867) internal successors, (1207), 741 states have internal predecessors, (1207), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:14,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1210 transitions. [2023-03-31 02:01:14,164 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1210 transitions. Word has length 113 [2023-03-31 02:01:14,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:01:14,164 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 1210 transitions. [2023-03-31 02:01:14,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:14,165 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1210 transitions. [2023-03-31 02:01:14,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-03-31 02:01:14,167 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:01:14,167 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:01:14,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 02:01:14,167 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:01:14,167 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:01:14,168 INFO L85 PathProgramCache]: Analyzing trace with hash 944548166, now seen corresponding path program 1 times [2023-03-31 02:01:14,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:01:14,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612091124] [2023-03-31 02:01:14,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:01:14,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:01:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:14,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:01:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:14,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:01:14,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:01:14,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612091124] [2023-03-31 02:01:14,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612091124] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:01:14,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:01:14,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-31 02:01:14,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802682032] [2023-03-31 02:01:14,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:01:14,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 02:01:14,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:01:14,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 02:01:14,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-03-31 02:01:14,555 INFO L87 Difference]: Start difference. First operand 745 states and 1210 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:15,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:01:15,808 INFO L93 Difference]: Finished difference Result 1825 states and 2948 transitions. [2023-03-31 02:01:15,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 02:01:15,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 116 [2023-03-31 02:01:15,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:01:15,813 INFO L225 Difference]: With dead ends: 1825 [2023-03-31 02:01:15,813 INFO L226 Difference]: Without dead ends: 1265 [2023-03-31 02:01:15,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-03-31 02:01:15,816 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 216 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-03-31 02:01:15,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 1071 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-03-31 02:01:15,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-03-31 02:01:15,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1259. [2023-03-31 02:01:15,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 1255 states have (on average 1.6151394422310756) internal successors, (2027), 1255 states have internal predecessors, (2027), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:15,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 2030 transitions. [2023-03-31 02:01:15,869 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 2030 transitions. Word has length 116 [2023-03-31 02:01:15,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:01:15,870 INFO L495 AbstractCegarLoop]: Abstraction has 1259 states and 2030 transitions. [2023-03-31 02:01:15,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:15,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 2030 transitions. [2023-03-31 02:01:15,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-03-31 02:01:15,874 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:01:15,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:01:15,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 02:01:15,874 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:01:15,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:01:15,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1221710477, now seen corresponding path program 1 times [2023-03-31 02:01:15,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:01:15,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048268420] [2023-03-31 02:01:15,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:01:15,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:01:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:16,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:01:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:16,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:01:16,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:01:16,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048268420] [2023-03-31 02:01:16,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048268420] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:01:16,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:01:16,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-31 02:01:16,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66396042] [2023-03-31 02:01:16,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:01:16,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 02:01:16,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:01:16,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 02:01:16,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-03-31 02:01:16,270 INFO L87 Difference]: Start difference. First operand 1259 states and 2030 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:17,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:01:17,636 INFO L93 Difference]: Finished difference Result 3327 states and 5336 transitions. [2023-03-31 02:01:17,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 02:01:17,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2023-03-31 02:01:17,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:01:17,646 INFO L225 Difference]: With dead ends: 3327 [2023-03-31 02:01:17,646 INFO L226 Difference]: Without dead ends: 2253 [2023-03-31 02:01:17,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-03-31 02:01:17,658 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 209 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-03-31 02:01:17,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 1072 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-03-31 02:01:17,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2253 states. [2023-03-31 02:01:17,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2253 to 2243. [2023-03-31 02:01:17,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2243 states, 2239 states have (on average 1.600267976775346) internal successors, (3583), 2239 states have internal predecessors, (3583), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:17,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2243 states to 2243 states and 3586 transitions. [2023-03-31 02:01:17,756 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 3586 transitions. Word has length 119 [2023-03-31 02:01:17,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:01:17,756 INFO L495 AbstractCegarLoop]: Abstraction has 2243 states and 3586 transitions. [2023-03-31 02:01:17,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:17,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 3586 transitions. [2023-03-31 02:01:17,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-03-31 02:01:17,758 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:01:17,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:01:17,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 02:01:17,758 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:01:17,758 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:01:17,759 INFO L85 PathProgramCache]: Analyzing trace with hash 286710939, now seen corresponding path program 1 times [2023-03-31 02:01:17,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:01:17,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118975123] [2023-03-31 02:01:17,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:01:17,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:01:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:18,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:01:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:18,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:01:18,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:01:18,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118975123] [2023-03-31 02:01:18,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118975123] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:01:18,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:01:18,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 02:01:18,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868088028] [2023-03-31 02:01:18,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:01:18,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 02:01:18,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:01:18,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 02:01:18,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-03-31 02:01:18,228 INFO L87 Difference]: Start difference. First operand 2243 states and 3586 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 6 states have internal predecessors, (119), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:19,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:01:19,986 INFO L93 Difference]: Finished difference Result 11779 states and 18926 transitions. [2023-03-31 02:01:19,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-03-31 02:01:19,987 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 6 states have internal predecessors, (119), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2023-03-31 02:01:19,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:01:20,019 INFO L225 Difference]: With dead ends: 11779 [2023-03-31 02:01:20,019 INFO L226 Difference]: Without dead ends: 9697 [2023-03-31 02:01:20,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-03-31 02:01:20,028 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 2328 mSDsluCounter, 4137 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2328 SdHoareTripleChecker+Valid, 4687 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-03-31 02:01:20,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2328 Valid, 4687 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-03-31 02:01:20,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9697 states. [2023-03-31 02:01:20,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9697 to 4114. [2023-03-31 02:01:20,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4114 states, 4110 states have (on average 1.605596107055961) internal successors, (6599), 4110 states have internal predecessors, (6599), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:20,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4114 states to 4114 states and 6602 transitions. [2023-03-31 02:01:20,325 INFO L78 Accepts]: Start accepts. Automaton has 4114 states and 6602 transitions. Word has length 122 [2023-03-31 02:01:20,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:01:20,326 INFO L495 AbstractCegarLoop]: Abstraction has 4114 states and 6602 transitions. [2023-03-31 02:01:20,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 6 states have internal predecessors, (119), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:20,326 INFO L276 IsEmpty]: Start isEmpty. Operand 4114 states and 6602 transitions. [2023-03-31 02:01:20,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-03-31 02:01:20,328 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:01:20,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:01:20,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 02:01:20,328 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:01:20,329 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:01:20,329 INFO L85 PathProgramCache]: Analyzing trace with hash 231936225, now seen corresponding path program 1 times [2023-03-31 02:01:20,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:01:20,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241715900] [2023-03-31 02:01:20,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:01:20,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:01:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:20,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:01:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:20,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:01:20,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:01:20,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241715900] [2023-03-31 02:01:20,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241715900] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:01:20,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:01:20,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 02:01:20,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285530345] [2023-03-31 02:01:20,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:01:20,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 02:01:20,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:01:20,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 02:01:20,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-03-31 02:01:20,717 INFO L87 Difference]: Start difference. First operand 4114 states and 6602 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:22,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:01:22,435 INFO L93 Difference]: Finished difference Result 12085 states and 19427 transitions. [2023-03-31 02:01:22,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-31 02:01:22,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2023-03-31 02:01:22,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:01:22,462 INFO L225 Difference]: With dead ends: 12085 [2023-03-31 02:01:22,463 INFO L226 Difference]: Without dead ends: 8156 [2023-03-31 02:01:22,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-03-31 02:01:22,471 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 727 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-03-31 02:01:22,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 1853 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-03-31 02:01:22,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8156 states. [2023-03-31 02:01:22,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8156 to 6111. [2023-03-31 02:01:22,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6111 states, 6107 states have (on average 1.6038971671851974) internal successors, (9795), 6107 states have internal predecessors, (9795), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:22,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6111 states to 6111 states and 9798 transitions. [2023-03-31 02:01:22,860 INFO L78 Accepts]: Start accepts. Automaton has 6111 states and 9798 transitions. Word has length 123 [2023-03-31 02:01:22,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:01:22,860 INFO L495 AbstractCegarLoop]: Abstraction has 6111 states and 9798 transitions. [2023-03-31 02:01:22,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:22,860 INFO L276 IsEmpty]: Start isEmpty. Operand 6111 states and 9798 transitions. [2023-03-31 02:01:22,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-03-31 02:01:22,863 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:01:22,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:01:22,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 02:01:22,863 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:01:22,864 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:01:22,864 INFO L85 PathProgramCache]: Analyzing trace with hash -334213094, now seen corresponding path program 1 times [2023-03-31 02:01:22,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:01:22,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49199621] [2023-03-31 02:01:22,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:01:22,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:01:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:23,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:01:23,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:23,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:01:23,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:01:23,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49199621] [2023-03-31 02:01:23,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49199621] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:01:23,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:01:23,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-31 02:01:23,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317831289] [2023-03-31 02:01:23,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:01:23,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 02:01:23,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:01:23,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 02:01:23,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-03-31 02:01:23,245 INFO L87 Difference]: Start difference. First operand 6111 states and 9798 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:25,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:01:25,226 INFO L93 Difference]: Finished difference Result 13421 states and 21492 transitions. [2023-03-31 02:01:25,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 02:01:25,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2023-03-31 02:01:25,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:01:25,250 INFO L225 Difference]: With dead ends: 13421 [2023-03-31 02:01:25,250 INFO L226 Difference]: Without dead ends: 9278 [2023-03-31 02:01:25,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-03-31 02:01:25,261 INFO L413 NwaCegarLoop]: 740 mSDtfsCounter, 229 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-03-31 02:01:25,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 1246 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-03-31 02:01:25,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9278 states. [2023-03-31 02:01:25,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9278 to 9276. [2023-03-31 02:01:25,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9276 states, 9272 states have (on average 1.594909404659189) internal successors, (14788), 9272 states have internal predecessors, (14788), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:25,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9276 states to 9276 states and 14791 transitions. [2023-03-31 02:01:25,815 INFO L78 Accepts]: Start accepts. Automaton has 9276 states and 14791 transitions. Word has length 126 [2023-03-31 02:01:25,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:01:25,815 INFO L495 AbstractCegarLoop]: Abstraction has 9276 states and 14791 transitions. [2023-03-31 02:01:25,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:25,816 INFO L276 IsEmpty]: Start isEmpty. Operand 9276 states and 14791 transitions. [2023-03-31 02:01:25,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-03-31 02:01:25,818 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:01:25,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:01:25,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 02:01:25,818 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:01:25,818 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:01:25,818 INFO L85 PathProgramCache]: Analyzing trace with hash 895177254, now seen corresponding path program 1 times [2023-03-31 02:01:25,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:01:25,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818025873] [2023-03-31 02:01:25,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:01:25,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:01:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:26,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:01:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:26,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:01:26,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:01:26,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818025873] [2023-03-31 02:01:26,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818025873] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:01:26,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:01:26,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-31 02:01:26,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264096341] [2023-03-31 02:01:26,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:01:26,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 02:01:26,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:01:26,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 02:01:26,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-03-31 02:01:26,198 INFO L87 Difference]: Start difference. First operand 9276 states and 14791 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:28,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:01:28,268 INFO L93 Difference]: Finished difference Result 17888 states and 28517 transitions. [2023-03-31 02:01:28,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 02:01:28,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2023-03-31 02:01:28,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:01:28,294 INFO L225 Difference]: With dead ends: 17888 [2023-03-31 02:01:28,294 INFO L226 Difference]: Without dead ends: 12971 [2023-03-31 02:01:28,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-03-31 02:01:28,304 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 215 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-03-31 02:01:28,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 1164 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-03-31 02:01:28,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12971 states. [2023-03-31 02:01:29,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12971 to 12969. [2023-03-31 02:01:29,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12969 states, 12965 states have (on average 1.586887774778249) internal successors, (20574), 12965 states have internal predecessors, (20574), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:29,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12969 states to 12969 states and 20577 transitions. [2023-03-31 02:01:29,126 INFO L78 Accepts]: Start accepts. Automaton has 12969 states and 20577 transitions. Word has length 126 [2023-03-31 02:01:29,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:01:29,126 INFO L495 AbstractCegarLoop]: Abstraction has 12969 states and 20577 transitions. [2023-03-31 02:01:29,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:29,126 INFO L276 IsEmpty]: Start isEmpty. Operand 12969 states and 20577 transitions. [2023-03-31 02:01:29,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-03-31 02:01:29,127 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:01:29,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:01:29,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-03-31 02:01:29,128 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:01:29,128 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:01:29,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1043954506, now seen corresponding path program 1 times [2023-03-31 02:01:29,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:01:29,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583116002] [2023-03-31 02:01:29,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:01:29,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:01:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:29,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:01:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:29,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:01:29,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:01:29,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583116002] [2023-03-31 02:01:29,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583116002] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:01:29,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:01:29,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-31 02:01:29,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462684878] [2023-03-31 02:01:29,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:01:29,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 02:01:29,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:01:29,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 02:01:29,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-03-31 02:01:29,470 INFO L87 Difference]: Start difference. First operand 12969 states and 20577 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:31,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:01:31,912 INFO L93 Difference]: Finished difference Result 24798 states and 39343 transitions. [2023-03-31 02:01:31,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 02:01:31,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2023-03-31 02:01:31,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:01:31,949 INFO L225 Difference]: With dead ends: 24798 [2023-03-31 02:01:31,949 INFO L226 Difference]: Without dead ends: 17955 [2023-03-31 02:01:31,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-03-31 02:01:31,964 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 208 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-03-31 02:01:31,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 1131 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-03-31 02:01:31,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17955 states. [2023-03-31 02:01:33,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17955 to 17953. [2023-03-31 02:01:33,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17953 states, 17949 states have (on average 1.5780266310100841) internal successors, (28324), 17949 states have internal predecessors, (28324), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:33,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17953 states to 17953 states and 28327 transitions. [2023-03-31 02:01:33,139 INFO L78 Accepts]: Start accepts. Automaton has 17953 states and 28327 transitions. Word has length 126 [2023-03-31 02:01:33,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:01:33,140 INFO L495 AbstractCegarLoop]: Abstraction has 17953 states and 28327 transitions. [2023-03-31 02:01:33,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:33,140 INFO L276 IsEmpty]: Start isEmpty. Operand 17953 states and 28327 transitions. [2023-03-31 02:01:33,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-03-31 02:01:33,145 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:01:33,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:01:33,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-03-31 02:01:33,146 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:01:33,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:01:33,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1629191594, now seen corresponding path program 1 times [2023-03-31 02:01:33,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:01:33,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764573119] [2023-03-31 02:01:33,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:01:33,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:01:33,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:33,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:01:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:33,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:01:33,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:01:33,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764573119] [2023-03-31 02:01:33,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764573119] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:01:33,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:01:33,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-31 02:01:33,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133907330] [2023-03-31 02:01:33,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:01:33,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 02:01:33,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:01:33,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 02:01:33,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-03-31 02:01:33,502 INFO L87 Difference]: Start difference. First operand 17953 states and 28327 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:36,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:01:36,516 INFO L93 Difference]: Finished difference Result 34001 states and 53643 transitions. [2023-03-31 02:01:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 02:01:36,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2023-03-31 02:01:36,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:01:36,556 INFO L225 Difference]: With dead ends: 34001 [2023-03-31 02:01:36,556 INFO L226 Difference]: Without dead ends: 24476 [2023-03-31 02:01:36,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-03-31 02:01:36,576 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 222 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-03-31 02:01:36,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 1218 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-03-31 02:01:36,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24476 states. [2023-03-31 02:01:38,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24476 to 24474. [2023-03-31 02:01:38,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24474 states, 24470 states have (on average 1.5679199019207193) internal successors, (38367), 24470 states have internal predecessors, (38367), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:38,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24474 states to 24474 states and 38370 transitions. [2023-03-31 02:01:38,272 INFO L78 Accepts]: Start accepts. Automaton has 24474 states and 38370 transitions. Word has length 126 [2023-03-31 02:01:38,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:01:38,273 INFO L495 AbstractCegarLoop]: Abstraction has 24474 states and 38370 transitions. [2023-03-31 02:01:38,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:38,273 INFO L276 IsEmpty]: Start isEmpty. Operand 24474 states and 38370 transitions. [2023-03-31 02:01:38,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-03-31 02:01:38,274 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:01:38,274 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:01:38,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-03-31 02:01:38,276 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:01:38,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:01:38,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1684002506, now seen corresponding path program 1 times [2023-03-31 02:01:38,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:01:38,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182592925] [2023-03-31 02:01:38,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:01:38,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:01:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:38,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:01:38,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:38,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:01:38,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:01:38,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182592925] [2023-03-31 02:01:38,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182592925] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:01:38,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:01:38,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-31 02:01:38,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405712867] [2023-03-31 02:01:38,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:01:38,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 02:01:38,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:01:38,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 02:01:38,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 02:01:38,858 INFO L87 Difference]: Start difference. First operand 24474 states and 38370 transitions. Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 5 states have internal predecessors, (129), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:42,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:01:42,848 INFO L93 Difference]: Finished difference Result 40489 states and 63123 transitions. [2023-03-31 02:01:42,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 02:01:42,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 5 states have internal predecessors, (129), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2023-03-31 02:01:42,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:01:42,914 INFO L225 Difference]: With dead ends: 40489 [2023-03-31 02:01:42,914 INFO L226 Difference]: Without dead ends: 40487 [2023-03-31 02:01:42,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-03-31 02:01:42,927 INFO L413 NwaCegarLoop]: 707 mSDtfsCounter, 477 mSDsluCounter, 1814 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 2521 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-03-31 02:01:42,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 2521 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-03-31 02:01:42,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40487 states. [2023-03-31 02:01:45,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40487 to 24794. [2023-03-31 02:01:45,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24794 states, 24790 states have (on average 1.5573215006050827) internal successors, (38606), 24790 states have internal predecessors, (38606), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:45,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24794 states to 24794 states and 38609 transitions. [2023-03-31 02:01:45,084 INFO L78 Accepts]: Start accepts. Automaton has 24794 states and 38609 transitions. Word has length 132 [2023-03-31 02:01:45,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:01:45,084 INFO L495 AbstractCegarLoop]: Abstraction has 24794 states and 38609 transitions. [2023-03-31 02:01:45,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 5 states have internal predecessors, (129), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:45,084 INFO L276 IsEmpty]: Start isEmpty. Operand 24794 states and 38609 transitions. [2023-03-31 02:01:45,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-03-31 02:01:45,088 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:01:45,088 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:01:45,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-03-31 02:01:45,088 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:01:45,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:01:45,089 INFO L85 PathProgramCache]: Analyzing trace with hash -724486573, now seen corresponding path program 1 times [2023-03-31 02:01:45,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:01:45,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372331908] [2023-03-31 02:01:45,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:01:45,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:01:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:45,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:01:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:45,509 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-03-31 02:01:45,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:01:45,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372331908] [2023-03-31 02:01:45,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372331908] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:01:45,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:01:45,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 02:01:45,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506107344] [2023-03-31 02:01:45,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:01:45,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 02:01:45,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:01:45,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 02:01:45,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-03-31 02:01:45,511 INFO L87 Difference]: Start difference. First operand 24794 states and 38609 transitions. Second operand has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:53,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:01:53,011 INFO L93 Difference]: Finished difference Result 81634 states and 127252 transitions. [2023-03-31 02:01:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 02:01:53,011 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 168 [2023-03-31 02:01:53,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:01:53,124 INFO L225 Difference]: With dead ends: 81634 [2023-03-31 02:01:53,124 INFO L226 Difference]: Without dead ends: 71588 [2023-03-31 02:01:53,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-03-31 02:01:53,159 INFO L413 NwaCegarLoop]: 789 mSDtfsCounter, 1457 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 3250 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-03-31 02:01:53,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1457 Valid, 3250 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-03-31 02:01:53,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71588 states. [2023-03-31 02:01:57,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71588 to 41598. [2023-03-31 02:01:57,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41598 states, 41594 states have (on average 1.5535173342308988) internal successors, (64617), 41594 states have internal predecessors, (64617), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:57,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41598 states to 41598 states and 64620 transitions. [2023-03-31 02:01:57,606 INFO L78 Accepts]: Start accepts. Automaton has 41598 states and 64620 transitions. Word has length 168 [2023-03-31 02:01:57,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:01:57,606 INFO L495 AbstractCegarLoop]: Abstraction has 41598 states and 64620 transitions. [2023-03-31 02:01:57,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:01:57,606 INFO L276 IsEmpty]: Start isEmpty. Operand 41598 states and 64620 transitions. [2023-03-31 02:01:57,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-03-31 02:01:57,610 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:01:57,610 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:01:57,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-03-31 02:01:57,610 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:01:57,610 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:01:57,610 INFO L85 PathProgramCache]: Analyzing trace with hash 504903775, now seen corresponding path program 1 times [2023-03-31 02:01:57,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:01:57,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163508903] [2023-03-31 02:01:57,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:01:57,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:01:57,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:57,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:01:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:01:58,005 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-03-31 02:01:58,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:01:58,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163508903] [2023-03-31 02:01:58,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163508903] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:01:58,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:01:58,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 02:01:58,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921211320] [2023-03-31 02:01:58,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:01:58,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 02:01:58,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:01:58,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 02:01:58,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-03-31 02:01:58,007 INFO L87 Difference]: Start difference. First operand 41598 states and 64620 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 6 states have internal predecessors, (150), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 02:02:07,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:02:07,143 INFO L93 Difference]: Finished difference Result 96096 states and 149736 transitions. [2023-03-31 02:02:07,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 02:02:07,143 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 6 states have internal predecessors, (150), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 168 [2023-03-31 02:02:07,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:02:07,284 INFO L225 Difference]: With dead ends: 96096 [2023-03-31 02:02:07,284 INFO L226 Difference]: Without dead ends: 79834 [2023-03-31 02:02:07,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-03-31 02:02:07,325 INFO L413 NwaCegarLoop]: 801 mSDtfsCounter, 1573 mSDsluCounter, 2290 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1573 SdHoareTripleChecker+Valid, 3091 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-03-31 02:02:07,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1573 Valid, 3091 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-03-31 02:02:07,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79834 states.