/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/pals_floodmax.4.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:04:32,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:04:32,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:04:32,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:04:32,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:04:32,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:04:32,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:04:32,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:04:32,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:04:32,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:04:32,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:04:32,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:04:32,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:04:32,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:04:32,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:04:32,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:04:32,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:04:32,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:04:32,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:04:32,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:04:32,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:04:32,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:04:32,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:04:32,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:04:32,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-02 05:04:32,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:04:32,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:04:32,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:04:32,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:04:32,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:04:32,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:04:32,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:04:32,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:04:32,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:04:32,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:04:32,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:04:32,599 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 [2023-04-02 05:04:32,624 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:04:32,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:04:32,625 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:04:32,625 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:04:32,626 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:04:32,626 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:04:32,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:04:32,627 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:04:32,627 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:04:32,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:04:32,627 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:04:32,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:04:32,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:04:32,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:04:32,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:04:32,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:04:32,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:04:32,628 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:04:32,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:04:32,628 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:04:32,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:04:32,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:04:32,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:04:32,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:04:32,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:04:32,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:04:32,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:04:32,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:04:32,629 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:04:32,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:04:32,629 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:04:32,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:04:32,629 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:04:32,629 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:04:32,630 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:04:32,630 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:04:32,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:04:32,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:04:32,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:04:32,843 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:04:32,844 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:04:32,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.ufo.UNBOUNDED.pals.c [2023-04-02 05:04:33,924 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:04:34,150 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:04:34,150 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.ufo.UNBOUNDED.pals.c [2023-04-02 05:04:34,161 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c4b8122c/d69fe36afceb40c99e56d07436144fd2/FLAG14f6bc9aa [2023-04-02 05:04:34,174 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c4b8122c/d69fe36afceb40c99e56d07436144fd2 [2023-04-02 05:04:34,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:04:34,177 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:04:34,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:04:34,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:04:34,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:04:34,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:04:34" (1/1) ... [2023-04-02 05:04:34,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e437ac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:34, skipping insertion in model container [2023-04-02 05:04:34,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:04:34" (1/1) ... [2023-04-02 05:04:34,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:04:34,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:04:34,451 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/pals_floodmax.4.ufo.UNBOUNDED.pals.c[28366,28379] [2023-04-02 05:04:34,453 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:04:34,461 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:04:34,513 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/pals_floodmax.4.ufo.UNBOUNDED.pals.c[28366,28379] [2023-04-02 05:04:34,513 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:04:34,523 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:04:34,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:34 WrapperNode [2023-04-02 05:04:34,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:04:34,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:04:34,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:04:34,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:04:34,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:34" (1/1) ... [2023-04-02 05:04:34,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:34" (1/1) ... [2023-04-02 05:04:34,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:34" (1/1) ... [2023-04-02 05:04:34,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:34" (1/1) ... [2023-04-02 05:04:34,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:34" (1/1) ... [2023-04-02 05:04:34,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:34" (1/1) ... [2023-04-02 05:04:34,612 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:34" (1/1) ... [2023-04-02 05:04:34,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:34" (1/1) ... [2023-04-02 05:04:34,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:04:34,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:04:34,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:04:34,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:04:34,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:34" (1/1) ... [2023-04-02 05:04:34,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:04:34,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:04:34,673 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) [2023-04-02 05:04:34,691 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 [2023-04-02 05:04:34,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:04:34,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:04:34,703 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:04:34,703 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:04:34,703 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:04:34,703 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:04:34,703 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:04:34,703 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-04-02 05:04:34,704 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:04:34,704 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:04:34,704 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:04:34,704 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:04:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:04:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:04:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:04:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:04:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:04:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-02 05:04:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:04:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:04:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:04:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:04:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:04:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:04:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:04:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:04:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 05:04:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:04:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:04:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:04:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:04:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:04:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:04:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:04:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:04:34,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:04:34,795 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:04:34,797 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:04:35,613 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:04:35,621 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:04:35,621 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:04:35,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:04:35 BoogieIcfgContainer [2023-04-02 05:04:35,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:04:35,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:04:35,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:04:35,628 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:04:35,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:04:34" (1/3) ... [2023-04-02 05:04:35,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508b710a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:04:35, skipping insertion in model container [2023-04-02 05:04:35,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:04:34" (2/3) ... [2023-04-02 05:04:35,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508b710a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:04:35, skipping insertion in model container [2023-04-02 05:04:35,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:04:35" (3/3) ... [2023-04-02 05:04:35,631 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.ufo.UNBOUNDED.pals.c [2023-04-02 05:04:35,646 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:04:35,647 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:04:35,689 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:04:35,695 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;@4964c21a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:04:35,695 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:04:35,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 317 states, 295 states have (on average 1.8) internal successors, (531), 297 states have internal predecessors, (531), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:04:35,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-04-02 05:04:35,715 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:04:35,716 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] [2023-04-02 05:04:35,717 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:04:35,722 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:04:35,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1254193429, now seen corresponding path program 1 times [2023-04-02 05:04:35,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:04:35,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062909155] [2023-04-02 05:04:35,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:04:35,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:04:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:36,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:04:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:36,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:04:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:36,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:04:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:36,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 05:04:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:36,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:04:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:36,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 05:04:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:36,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 05:04:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:36,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 05:04:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:36,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:04:36,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:04:36,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062909155] [2023-04-02 05:04:36,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062909155] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:04:36,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:04:36,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 05:04:36,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377525925] [2023-04-02 05:04:36,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:04:36,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 05:04:36,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:04:36,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 05:04:36,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-04-02 05:04:36,642 INFO L87 Difference]: Start difference. First operand has 317 states, 295 states have (on average 1.8) internal successors, (531), 297 states have internal predecessors, (531), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:04:38,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:04:38,419 INFO L93 Difference]: Finished difference Result 444 states and 759 transitions. [2023-04-02 05:04:38,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 05:04:38,421 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 104 [2023-04-02 05:04:38,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:04:38,428 INFO L225 Difference]: With dead ends: 444 [2023-04-02 05:04:38,428 INFO L226 Difference]: Without dead ends: 328 [2023-04-02 05:04:38,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:04:38,433 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 1162 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:04:38,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 46 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:04:38,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-04-02 05:04:38,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 312. [2023-04-02 05:04:38,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 292 states have (on average 1.7945205479452055) internal successors, (524), 293 states have internal predecessors, (524), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-04-02 05:04:38,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 543 transitions. [2023-04-02 05:04:38,570 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 543 transitions. Word has length 104 [2023-04-02 05:04:38,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:04:38,571 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 543 transitions. [2023-04-02 05:04:38,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:04:38,571 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 543 transitions. [2023-04-02 05:04:38,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-04-02 05:04:38,573 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:04:38,573 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] [2023-04-02 05:04:38,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:04:38,574 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:04:38,574 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:04:38,574 INFO L85 PathProgramCache]: Analyzing trace with hash -830546707, now seen corresponding path program 1 times [2023-04-02 05:04:38,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:04:38,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867569502] [2023-04-02 05:04:38,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:04:38,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:04:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:39,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:04:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:39,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:04:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:39,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:04:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:39,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 05:04:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:39,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:04:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:39,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 05:04:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:39,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 05:04:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:39,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 05:04:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:39,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:04:39,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:04:39,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867569502] [2023-04-02 05:04:39,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867569502] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:04:39,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:04:39,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:04:39,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572382569] [2023-04-02 05:04:39,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:04:39,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:04:39,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:04:39,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:04:39,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:04:39,279 INFO L87 Difference]: Start difference. First operand 312 states and 543 transitions. Second operand has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:04:42,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:04:42,862 INFO L93 Difference]: Finished difference Result 442 states and 751 transitions. [2023-04-02 05:04:42,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 05:04:42,863 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 104 [2023-04-02 05:04:42,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:04:42,865 INFO L225 Difference]: With dead ends: 442 [2023-04-02 05:04:42,865 INFO L226 Difference]: Without dead ends: 328 [2023-04-02 05:04:42,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2023-04-02 05:04:42,867 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 1589 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 3979 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 4051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 3979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:04:42,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1595 Valid, 132 Invalid, 4051 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [72 Valid, 3979 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-04-02 05:04:42,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-04-02 05:04:42,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 312. [2023-04-02 05:04:42,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 292 states have (on average 1.6506849315068493) internal successors, (482), 293 states have internal predecessors, (482), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-04-02 05:04:42,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 501 transitions. [2023-04-02 05:04:42,917 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 501 transitions. Word has length 104 [2023-04-02 05:04:42,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:04:42,918 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 501 transitions. [2023-04-02 05:04:42,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:04:42,918 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 501 transitions. [2023-04-02 05:04:42,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-04-02 05:04:42,922 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:04:42,922 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:04:42,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:04:42,922 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:04:42,923 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:04:42,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1981225145, now seen corresponding path program 1 times [2023-04-02 05:04:42,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:04:42,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602545340] [2023-04-02 05:04:42,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:04:42,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:04:42,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:43,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:04:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:43,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:04:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:43,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:04:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:43,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:04:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:43,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 05:04:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:43,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 05:04:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:43,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 05:04:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:43,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-04-02 05:04:43,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:43,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:04:43,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:04:43,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602545340] [2023-04-02 05:04:43,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602545340] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:04:43,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:04:43,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:04:43,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874514556] [2023-04-02 05:04:43,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:04:43,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:04:43,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:04:43,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:04:43,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:04:43,971 INFO L87 Difference]: Start difference. First operand 312 states and 501 transitions. Second operand has 16 states, 16 states have (on average 7.9375) internal successors, (127), 11 states have internal predecessors, (127), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:04:55,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:04:55,506 INFO L93 Difference]: Finished difference Result 1785 states and 2907 transitions. [2023-04-02 05:04:55,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2023-04-02 05:04:55,508 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.9375) internal successors, (127), 11 states have internal predecessors, (127), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 145 [2023-04-02 05:04:55,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:04:55,532 INFO L225 Difference]: With dead ends: 1785 [2023-04-02 05:04:55,532 INFO L226 Difference]: Without dead ends: 1677 [2023-04-02 05:04:55,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2975 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=1562, Invalid=7180, Unknown=0, NotChecked=0, Total=8742 [2023-04-02 05:04:55,567 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 8231 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 5136 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8242 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 5520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 5136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:04:55,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8242 Valid, 161 Invalid, 5520 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [384 Valid, 5136 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-04-02 05:04:55,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2023-04-02 05:04:55,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 842. [2023-04-02 05:04:55,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 754 states have (on average 1.676392572944297) internal successors, (1264), 763 states have internal predecessors, (1264), 40 states have call successors, (40), 40 states have call predecessors, (40), 47 states have return successors, (67), 39 states have call predecessors, (67), 39 states have call successors, (67) [2023-04-02 05:04:55,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1371 transitions. [2023-04-02 05:04:55,816 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1371 transitions. Word has length 145 [2023-04-02 05:04:55,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:04:55,817 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1371 transitions. [2023-04-02 05:04:55,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.9375) internal successors, (127), 11 states have internal predecessors, (127), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:04:55,817 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1371 transitions. [2023-04-02 05:04:55,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-04-02 05:04:55,821 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:04:55,821 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:04:55,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:04:55,821 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:04:55,822 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:04:55,822 INFO L85 PathProgramCache]: Analyzing trace with hash -766073659, now seen corresponding path program 1 times [2023-04-02 05:04:55,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:04:55,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548206486] [2023-04-02 05:04:55,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:04:55,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:04:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:56,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:04:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:56,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:04:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:56,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:04:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:56,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:04:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:56,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 05:04:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:56,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 05:04:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:56,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 05:04:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:56,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-04-02 05:04:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:56,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:04:56,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:04:56,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548206486] [2023-04-02 05:04:56,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548206486] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:04:56,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:04:56,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:04:56,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227479366] [2023-04-02 05:04:56,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:04:56,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:04:56,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:04:56,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:04:56,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:04:56,448 INFO L87 Difference]: Start difference. First operand 842 states and 1371 transitions. Second operand has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:05:02,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:05:02,117 INFO L93 Difference]: Finished difference Result 2653 states and 4300 transitions. [2023-04-02 05:05:02,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-04-02 05:05:02,118 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 146 [2023-04-02 05:05:02,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:05:02,126 INFO L225 Difference]: With dead ends: 2653 [2023-04-02 05:05:02,126 INFO L226 Difference]: Without dead ends: 2015 [2023-04-02 05:05:02,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:05:02,129 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 2026 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 3816 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2036 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 3875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:05:02,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2036 Valid, 118 Invalid, 3875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3816 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-04-02 05:05:02,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2023-04-02 05:05:02,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1761. [2023-04-02 05:05:02,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1761 states, 1548 states have (on average 1.6724806201550388) internal successors, (2589), 1574 states have internal predecessors, (2589), 94 states have call successors, (94), 94 states have call predecessors, (94), 118 states have return successors, (180), 93 states have call predecessors, (180), 93 states have call successors, (180) [2023-04-02 05:05:02,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1761 states to 1761 states and 2863 transitions. [2023-04-02 05:05:02,334 INFO L78 Accepts]: Start accepts. Automaton has 1761 states and 2863 transitions. Word has length 146 [2023-04-02 05:05:02,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:05:02,334 INFO L495 AbstractCegarLoop]: Abstraction has 1761 states and 2863 transitions. [2023-04-02 05:05:02,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:05:02,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1761 states and 2863 transitions. [2023-04-02 05:05:02,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-04-02 05:05:02,336 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:05:02,336 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:05:02,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:05:02,337 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:05:02,337 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:05:02,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1802768194, now seen corresponding path program 1 times [2023-04-02 05:05:02,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:05:02,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376948661] [2023-04-02 05:05:02,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:05:02,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:05:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:02,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:05:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:02,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:05:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:02,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:05:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:02,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:05:02,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:02,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 05:05:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:02,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 05:05:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:03,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 05:05:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:03,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-04-02 05:05:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:03,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:05:03,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:05:03,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376948661] [2023-04-02 05:05:03,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376948661] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:05:03,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:05:03,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:05:03,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290925839] [2023-04-02 05:05:03,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:05:03,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:05:03,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:05:03,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:05:03,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:05:03,030 INFO L87 Difference]: Start difference. First operand 1761 states and 2863 transitions. Second operand has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 6 states have internal predecessors, (129), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:05:10,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:05:10,103 INFO L93 Difference]: Finished difference Result 10671 states and 17259 transitions. [2023-04-02 05:05:10,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-04-02 05:05:10,104 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 6 states have internal predecessors, (129), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 147 [2023-04-02 05:05:10,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:05:10,165 INFO L225 Difference]: With dead ends: 10671 [2023-04-02 05:05:10,166 INFO L226 Difference]: Without dead ends: 9114 [2023-04-02 05:05:10,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:05:10,189 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 2060 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 3789 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2070 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 3849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 3789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:05:10,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2070 Valid, 118 Invalid, 3849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 3789 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-04-02 05:05:10,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9114 states. [2023-04-02 05:05:10,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9114 to 7876. [2023-04-02 05:05:10,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7876 states, 6828 states have (on average 1.6682776801405976) internal successors, (11391), 6969 states have internal predecessors, (11391), 454 states have call successors, (454), 454 states have call predecessors, (454), 593 states have return successors, (969), 453 states have call predecessors, (969), 453 states have call successors, (969) [2023-04-02 05:05:10,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7876 states to 7876 states and 12814 transitions. [2023-04-02 05:05:10,977 INFO L78 Accepts]: Start accepts. Automaton has 7876 states and 12814 transitions. Word has length 147 [2023-04-02 05:05:10,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:05:10,977 INFO L495 AbstractCegarLoop]: Abstraction has 7876 states and 12814 transitions. [2023-04-02 05:05:10,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 6 states have internal predecessors, (129), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:05:10,977 INFO L276 IsEmpty]: Start isEmpty. Operand 7876 states and 12814 transitions. [2023-04-02 05:05:10,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-04-02 05:05:10,979 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:05:10,979 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:05:10,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:05:10,980 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:05:10,980 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:05:10,980 INFO L85 PathProgramCache]: Analyzing trace with hash 367754652, now seen corresponding path program 1 times [2023-04-02 05:05:10,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:05:10,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971156740] [2023-04-02 05:05:10,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:05:10,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:05:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:11,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:05:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:11,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:05:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:11,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:05:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:11,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:05:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:11,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 05:05:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:11,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 05:05:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:11,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 05:05:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:11,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-04-02 05:05:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:11,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:05:11,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:05:11,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971156740] [2023-04-02 05:05:11,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971156740] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:05:11,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:05:11,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:05:11,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239743789] [2023-04-02 05:05:11,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:05:11,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:05:11,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:05:11,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:05:11,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:05:11,587 INFO L87 Difference]: Start difference. First operand 7876 states and 12814 transitions. Second operand has 11 states, 11 states have (on average 11.818181818181818) internal successors, (130), 6 states have internal predecessors, (130), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:05:19,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:05:19,909 INFO L93 Difference]: Finished difference Result 52137 states and 84249 transitions. [2023-04-02 05:05:19,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-04-02 05:05:19,910 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.818181818181818) internal successors, (130), 6 states have internal predecessors, (130), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 148 [2023-04-02 05:05:19,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:05:20,032 INFO L225 Difference]: With dead ends: 52137 [2023-04-02 05:05:20,033 INFO L226 Difference]: Without dead ends: 44465 [2023-04-02 05:05:20,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:05:20,067 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 3650 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 3420 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3660 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 3539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 3420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:05:20,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3660 Valid, 125 Invalid, 3539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 3420 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-04-02 05:05:20,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44465 states. [2023-04-02 05:05:24,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44465 to 38307. [2023-04-02 05:05:24,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38307 states, 33024 states have (on average 1.6608829941860466) internal successors, (54849), 33800 states have internal predecessors, (54849), 2254 states have call successors, (2254), 2254 states have call predecessors, (2254), 3028 states have return successors, (5226), 2253 states have call predecessors, (5226), 2253 states have call successors, (5226) [2023-04-02 05:05:24,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38307 states to 38307 states and 62329 transitions. [2023-04-02 05:05:24,300 INFO L78 Accepts]: Start accepts. Automaton has 38307 states and 62329 transitions. Word has length 148 [2023-04-02 05:05:24,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:05:24,300 INFO L495 AbstractCegarLoop]: Abstraction has 38307 states and 62329 transitions. [2023-04-02 05:05:24,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.818181818181818) internal successors, (130), 6 states have internal predecessors, (130), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:05:24,301 INFO L276 IsEmpty]: Start isEmpty. Operand 38307 states and 62329 transitions. [2023-04-02 05:05:24,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-04-02 05:05:24,304 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:05:24,304 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:05:24,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:05:24,304 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:05:24,307 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:05:24,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1117198795, now seen corresponding path program 1 times [2023-04-02 05:05:24,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:05:24,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100736959] [2023-04-02 05:05:24,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:05:24,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:05:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:24,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:05:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:24,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:05:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:24,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:05:24,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:24,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:05:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:24,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 05:05:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:24,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 05:05:24,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:24,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 05:05:24,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:24,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-04-02 05:05:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:24,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:05:24,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:05:24,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100736959] [2023-04-02 05:05:24,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100736959] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:05:24,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:05:24,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:05:24,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011689625] [2023-04-02 05:05:24,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:05:24,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:05:24,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:05:24,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:05:24,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:05:24,950 INFO L87 Difference]: Start difference. First operand 38307 states and 62329 transitions. Second operand has 11 states, 11 states have (on average 11.909090909090908) internal successors, (131), 6 states have internal predecessors, (131), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:05:44,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:05:44,882 INFO L93 Difference]: Finished difference Result 240292 states and 387914 transitions. [2023-04-02 05:05:44,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-04-02 05:05:44,882 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.909090909090908) internal successors, (131), 6 states have internal predecessors, (131), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 149 [2023-04-02 05:05:44,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:05:45,801 INFO L225 Difference]: With dead ends: 240292 [2023-04-02 05:05:45,801 INFO L226 Difference]: Without dead ends: 202189 [2023-04-02 05:05:45,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:05:45,896 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 2309 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 3097 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2319 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 3176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 3097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:05:45,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2319 Valid, 94 Invalid, 3176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 3097 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-04-02 05:05:46,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202189 states. [2023-04-02 05:06:01,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202189 to 174077. [2023-04-02 05:06:01,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174077 states, 149533 states have (on average 1.652906047494533) internal successors, (247164), 153514 states have internal predecessors, (247164), 10282 states have call successors, (10282), 10282 states have call predecessors, (10282), 14261 states have return successors, (25617), 10281 states have call predecessors, (25617), 10281 states have call successors, (25617) [2023-04-02 05:06:02,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174077 states to 174077 states and 283063 transitions. [2023-04-02 05:06:02,145 INFO L78 Accepts]: Start accepts. Automaton has 174077 states and 283063 transitions. Word has length 149 [2023-04-02 05:06:02,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:06:02,146 INFO L495 AbstractCegarLoop]: Abstraction has 174077 states and 283063 transitions. [2023-04-02 05:06:02,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.909090909090908) internal successors, (131), 6 states have internal predecessors, (131), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:06:02,146 INFO L276 IsEmpty]: Start isEmpty. Operand 174077 states and 283063 transitions. [2023-04-02 05:06:02,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-02 05:06:02,150 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:06:02,150 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:06:02,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:06:02,151 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:06:02,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:06:02,151 INFO L85 PathProgramCache]: Analyzing trace with hash -442408250, now seen corresponding path program 1 times [2023-04-02 05:06:02,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:06:02,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238261498] [2023-04-02 05:06:02,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:06:02,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:06:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:03,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:06:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:03,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:06:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:03,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:06:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:03,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:06:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:03,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 05:06:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:03,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 05:06:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:03,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 05:06:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:03,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:06:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:03,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:06:03,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:06:03,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238261498] [2023-04-02 05:06:03,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238261498] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:06:03,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:06:03,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:06:03,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773345624] [2023-04-02 05:06:03,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:06:03,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:06:03,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:06:03,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:06:03,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:06:03,344 INFO L87 Difference]: Start difference. First operand 174077 states and 283063 transitions. Second operand has 16 states, 16 states have (on average 8.3125) internal successors, (133), 11 states have internal predecessors, (133), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:06:32,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:06:32,334 INFO L93 Difference]: Finished difference Result 286974 states and 463905 transitions. [2023-04-02 05:06:32,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2023-04-02 05:06:32,334 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.3125) internal successors, (133), 11 states have internal predecessors, (133), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 151 [2023-04-02 05:06:32,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:06:33,242 INFO L225 Difference]: With dead ends: 286974 [2023-04-02 05:06:33,242 INFO L226 Difference]: Without dead ends: 210845 [2023-04-02 05:06:33,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4837 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=1995, Invalid=11115, Unknown=0, NotChecked=0, Total=13110 [2023-04-02 05:06:33,368 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 5865 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 6718 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5880 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 6974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 6718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:06:33,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5880 Valid, 186 Invalid, 6974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 6718 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-04-02 05:06:33,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210845 states. [2023-04-02 05:06:49,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210845 to 179333. [2023-04-02 05:06:49,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179333 states, 154146 states have (on average 1.6536789796686258) internal successors, (254908), 158114 states have internal predecessors, (254908), 10610 states have call successors, (10610), 10610 states have call predecessors, (10610), 14576 states have return successors, (26371), 10609 states have call predecessors, (26371), 10609 states have call successors, (26371) [2023-04-02 05:06:51,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179333 states to 179333 states and 291889 transitions. [2023-04-02 05:06:51,132 INFO L78 Accepts]: Start accepts. Automaton has 179333 states and 291889 transitions. Word has length 151 [2023-04-02 05:06:51,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:06:51,134 INFO L495 AbstractCegarLoop]: Abstraction has 179333 states and 291889 transitions. [2023-04-02 05:06:51,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.3125) internal successors, (133), 11 states have internal predecessors, (133), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:06:51,134 INFO L276 IsEmpty]: Start isEmpty. Operand 179333 states and 291889 transitions. [2023-04-02 05:06:51,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-02 05:06:51,169 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:06:51,169 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:06:51,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:06:51,170 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:06:51,170 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:06:51,170 INFO L85 PathProgramCache]: Analyzing trace with hash 51705581, now seen corresponding path program 1 times [2023-04-02 05:06:51,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:06:51,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653110013] [2023-04-02 05:06:51,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:06:51,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:06:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:51,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:06:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:51,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:06:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:51,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:06:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:51,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:06:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:51,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 05:06:51,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:51,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 05:06:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:51,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 05:06:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:51,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-04-02 05:06:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:51,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:06:51,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:06:51,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653110013] [2023-04-02 05:06:51,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653110013] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:06:51,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:06:51,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 05:06:51,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129418398] [2023-04-02 05:06:51,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:06:51,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:06:51,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:06:51,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:06:51,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:06:51,620 INFO L87 Difference]: Start difference. First operand 179333 states and 291889 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8)