/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_opt-floodmax.5.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:27:25,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:27:25,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:27:25,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:27:25,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:27:25,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:27:25,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:27:25,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:27:25,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:27:25,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:27:25,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:27:25,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:27:25,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:27:25,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:27:25,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:27:25,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:27:25,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:27:25,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:27:25,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:27:25,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:27:25,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:27:25,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:27:25,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:27:25,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:27:25,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-02 05:27:25,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:27:25,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:27:25,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:27:25,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:27:25,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:27:25,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:27:25,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:27:25,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:27:25,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:27:25,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:27:25,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:27:25,842 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 05:27:25,873 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:27:25,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:27:25,874 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:27:25,874 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:27:25,875 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:27:25,875 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:27:25,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:27:25,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:27:25,876 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:27:25,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:27:25,877 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:27:25,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:27:25,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:27:25,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:27:25,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:27:25,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:27:25,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:27:25,878 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:27:25,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:27:25,878 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:27:25,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:27:25,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:27:25,878 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:27:25,878 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:27:25,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:27:25,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:27:25,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:27:25,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:27:25,879 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:27:25,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:27:25,879 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:27:25,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:27:25,880 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:27:25,880 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:27:25,880 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:27:25,880 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:27:26,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:27:26,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:27:26,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:27:26,126 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:27:26,127 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:27:26,129 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.1.ufo.UNBOUNDED.pals.c [2023-04-02 05:27:27,409 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:27:27,672 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:27:27,672 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.1.ufo.UNBOUNDED.pals.c [2023-04-02 05:27:27,698 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13bfcad35/759436121bc54ec89e44c4eabe920338/FLAG346ccb739 [2023-04-02 05:27:27,709 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13bfcad35/759436121bc54ec89e44c4eabe920338 [2023-04-02 05:27:27,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:27:27,712 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:27:27,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:27:27,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:27:27,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:27:27,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:27:27" (1/1) ... [2023-04-02 05:27:27,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ba455b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:27:27, skipping insertion in model container [2023-04-02 05:27:27,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:27:27" (1/1) ... [2023-04-02 05:27:27,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:27:27,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:27:28,188 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_opt-floodmax.5.1.ufo.UNBOUNDED.pals.c[55979,55992] [2023-04-02 05:27:28,192 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:27:28,215 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:27:28,307 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_opt-floodmax.5.1.ufo.UNBOUNDED.pals.c[55979,55992] [2023-04-02 05:27:28,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:27:28,328 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:27:28,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:27:28 WrapperNode [2023-04-02 05:27:28,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:27:28,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:27:28,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:27:28,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:27:28,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:27:28" (1/1) ... [2023-04-02 05:27:28,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:27:28" (1/1) ... [2023-04-02 05:27:28,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:27:28" (1/1) ... [2023-04-02 05:27:28,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:27:28" (1/1) ... [2023-04-02 05:27:28,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:27:28" (1/1) ... [2023-04-02 05:27:28,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:27:28" (1/1) ... [2023-04-02 05:27:28,480 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:27:28" (1/1) ... [2023-04-02 05:27:28,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:27:28" (1/1) ... [2023-04-02 05:27:28,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:27:28,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:27:28,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:27:28,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:27:28,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:27:28" (1/1) ... [2023-04-02 05:27:28,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:27:28,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:27:28,540 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 05:27:28,563 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 05:27:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:27:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:27:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:27:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:27:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:27:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:27:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:27:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-04-02 05:27:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2023-04-02 05:27:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:27:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:27:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:27:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:27:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:27:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:27:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:27:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:27:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:27:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-02 05:27:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:27:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:27:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:27:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:27:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:27:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:27:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:27:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:27:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 05:27:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-04-02 05:27:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:27:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:27:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:27:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:27:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:27:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:27:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:27:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:27:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:27:28,852 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:27:28,854 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:27:30,251 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:27:30,270 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:27:30,270 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:27:30,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:27:30 BoogieIcfgContainer [2023-04-02 05:27:30,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:27:30,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:27:30,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:27:30,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:27:30,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:27:27" (1/3) ... [2023-04-02 05:27:30,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c398cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:27:30, skipping insertion in model container [2023-04-02 05:27:30,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:27:28" (2/3) ... [2023-04-02 05:27:30,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c398cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:27:30, skipping insertion in model container [2023-04-02 05:27:30,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:27:30" (3/3) ... [2023-04-02 05:27:30,284 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.1.ufo.UNBOUNDED.pals.c [2023-04-02 05:27:30,298 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:27:30,298 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:27:30,354 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:27:30,360 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;@48c76d90, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:27:30,361 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:27:30,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 722 states, 698 states have (on average 1.843839541547278) internal successors, (1287), 700 states have internal predecessors, (1287), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-04-02 05:27:30,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-04-02 05:27:30,392 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:27:30,393 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:27:30,393 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:27:30,397 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:27:30,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1302179294, now seen corresponding path program 1 times [2023-04-02 05:27:30,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:27:30,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711805446] [2023-04-02 05:27:30,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:27:30,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:27:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:31,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:27:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:31,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:27:31,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:31,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 05:27:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:31,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:27:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:31,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 05:27:31,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:32,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-04-02 05:27:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:32,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 05:27:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:32,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 05:27:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:32,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-04-02 05:27:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:32,120 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 05:27:32,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:27:32,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711805446] [2023-04-02 05:27:32,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711805446] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:27:32,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:27:32,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 05:27:32,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20121835] [2023-04-02 05:27:32,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:27:32,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 05:27:32,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:27:32,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 05:27:32,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:27:32,168 INFO L87 Difference]: Start difference. First operand has 722 states, 698 states have (on average 1.843839541547278) internal successors, (1287), 700 states have internal predecessors, (1287), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 8 states, 8 states have (on average 20.875) internal successors, (167), 2 states have internal predecessors, (167), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:27:38,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:27:38,444 INFO L93 Difference]: Finished difference Result 939 states and 1679 transitions. [2023-04-02 05:27:38,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 05:27:38,446 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 2 states have internal predecessors, (167), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 187 [2023-04-02 05:27:38,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:27:38,462 INFO L225 Difference]: With dead ends: 939 [2023-04-02 05:27:38,462 INFO L226 Difference]: Without dead ends: 757 [2023-04-02 05:27:38,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:27:38,468 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 6474 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1581 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6474 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:27:38,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6474 Valid, 53 Invalid, 1631 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [50 Valid, 1581 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-04-02 05:27:38,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2023-04-02 05:27:38,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 717. [2023-04-02 05:27:38,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 695 states have (on average 1.841726618705036) internal successors, (1280), 696 states have internal predecessors, (1280), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:27:38,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1301 transitions. [2023-04-02 05:27:38,842 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1301 transitions. Word has length 187 [2023-04-02 05:27:38,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:27:38,844 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 1301 transitions. [2023-04-02 05:27:38,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 2 states have internal predecessors, (167), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:27:38,845 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1301 transitions. [2023-04-02 05:27:38,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-04-02 05:27:38,851 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:27:38,851 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:27:38,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:27:38,852 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:27:38,852 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:27:38,853 INFO L85 PathProgramCache]: Analyzing trace with hash 236160736, now seen corresponding path program 1 times [2023-04-02 05:27:38,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:27:38,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640722171] [2023-04-02 05:27:38,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:27:38,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:27:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:40,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:27:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:40,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:27:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:40,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 05:27:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:40,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:27:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:40,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 05:27:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:40,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-04-02 05:27:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:40,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 05:27:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:40,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 05:27:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:40,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-04-02 05:27:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:40,566 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 05:27:40,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:27:40,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640722171] [2023-04-02 05:27:40,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640722171] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:27:40,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:27:40,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 05:27:40,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054138814] [2023-04-02 05:27:40,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:27:40,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 05:27:40,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:27:40,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 05:27:40,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:27:40,571 INFO L87 Difference]: Start difference. First operand 717 states and 1301 transitions. Second operand has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 7 states have internal predecessors, (167), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:27:50,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:27:50,335 INFO L93 Difference]: Finished difference Result 937 states and 1671 transitions. [2023-04-02 05:27:50,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 05:27:50,336 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 7 states have internal predecessors, (167), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 187 [2023-04-02 05:27:50,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:27:50,341 INFO L225 Difference]: With dead ends: 937 [2023-04-02 05:27:50,341 INFO L226 Difference]: Without dead ends: 757 [2023-04-02 05:27:50,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2023-04-02 05:27:50,344 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 6491 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 9259 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6498 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 9359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 9259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:27:50,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6498 Valid, 144 Invalid, 9359 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [100 Valid, 9259 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-04-02 05:27:50,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2023-04-02 05:27:50,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 717. [2023-04-02 05:27:50,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 695 states have (on average 1.776978417266187) internal successors, (1235), 696 states have internal predecessors, (1235), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:27:50,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1256 transitions. [2023-04-02 05:27:50,540 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1256 transitions. Word has length 187 [2023-04-02 05:27:50,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:27:50,541 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 1256 transitions. [2023-04-02 05:27:50,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 7 states have internal predecessors, (167), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:27:50,541 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1256 transitions. [2023-04-02 05:27:50,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-04-02 05:27:50,544 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:27:50,545 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:27:50,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:27:50,545 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:27:50,546 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:27:50,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1726447528, now seen corresponding path program 1 times [2023-04-02 05:27:50,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:27:50,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882410728] [2023-04-02 05:27:50,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:27:50,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:27:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:51,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:27:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:51,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:27:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:52,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-04-02 05:27:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:52,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-04-02 05:27:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:52,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-04-02 05:27:52,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:52,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-04-02 05:27:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:52,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:27:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:52,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-04-02 05:27:52,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:52,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-04-02 05:27:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:27:52,519 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 05:27:52,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:27:52,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882410728] [2023-04-02 05:27:52,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882410728] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:27:52,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:27:52,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 05:27:52,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411593546] [2023-04-02 05:27:52,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:27:52,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 05:27:52,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:27:52,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 05:27:52,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:27:52,524 INFO L87 Difference]: Start difference. First operand 717 states and 1256 transitions. Second operand has 19 states, 19 states have (on average 11.105263157894736) internal successors, (211), 13 states have internal predecessors, (211), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:28:32,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:28:32,240 INFO L93 Difference]: Finished difference Result 3910 states and 6703 transitions. [2023-04-02 05:28:32,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2023-04-02 05:28:32,241 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 11.105263157894736) internal successors, (211), 13 states have internal predecessors, (211), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 231 [2023-04-02 05:28:32,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:28:32,265 INFO L225 Difference]: With dead ends: 3910 [2023-04-02 05:28:32,265 INFO L226 Difference]: Without dead ends: 3736 [2023-04-02 05:28:32,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6575 ImplicationChecksByTransitivity, 23.4s TimeCoverageRelationStatistics Valid=2884, Invalid=15206, Unknown=0, NotChecked=0, Total=18090 [2023-04-02 05:28:32,274 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 10752 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 18071 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10765 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 18348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 18071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:28:32,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10765 Valid, 302 Invalid, 18348 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [277 Valid, 18071 Invalid, 0 Unknown, 0 Unchecked, 15.9s Time] [2023-04-02 05:28:32,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3736 states. [2023-04-02 05:28:32,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3736 to 1581. [2023-04-02 05:28:32,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1479 states have (on average 1.749154834347532) internal successors, (2587), 1490 states have internal predecessors, (2587), 46 states have call successors, (46), 46 states have call predecessors, (46), 55 states have return successors, (79), 45 states have call predecessors, (79), 45 states have call successors, (79) [2023-04-02 05:28:32,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2712 transitions. [2023-04-02 05:28:32,717 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2712 transitions. Word has length 231 [2023-04-02 05:28:32,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:28:32,718 INFO L495 AbstractCegarLoop]: Abstraction has 1581 states and 2712 transitions. [2023-04-02 05:28:32,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.105263157894736) internal successors, (211), 13 states have internal predecessors, (211), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:28:32,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2712 transitions. [2023-04-02 05:28:32,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-04-02 05:28:32,723 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:28:32,723 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:28:32,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:28:32,723 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:28:32,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:28:32,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1210439854, now seen corresponding path program 1 times [2023-04-02 05:28:32,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:28:32,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49425431] [2023-04-02 05:28:32,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:28:32,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:28:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:33,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:28:33,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:33,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:28:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:33,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-04-02 05:28:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:33,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-04-02 05:28:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:33,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-04-02 05:28:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:34,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-04-02 05:28:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:34,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:28:34,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:34,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-04-02 05:28:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:34,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-04-02 05:28:34,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:34,140 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 05:28:34,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:28:34,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49425431] [2023-04-02 05:28:34,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49425431] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:28:34,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:28:34,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:28:34,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147182424] [2023-04-02 05:28:34,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:28:34,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:28:34,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:28:34,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:28:34,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:28:34,142 INFO L87 Difference]: Start difference. First operand 1581 states and 2712 transitions. Second operand has 12 states, 12 states have (on average 17.666666666666668) internal successors, (212), 6 states have internal predecessors, (212), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:28:48,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:28:48,569 INFO L93 Difference]: Finished difference Result 4748 states and 8078 transitions. [2023-04-02 05:28:48,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:28:48,570 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 17.666666666666668) internal successors, (212), 6 states have internal predecessors, (212), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 232 [2023-04-02 05:28:48,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:28:48,586 INFO L225 Difference]: With dead ends: 4748 [2023-04-02 05:28:48,587 INFO L226 Difference]: Without dead ends: 3710 [2023-04-02 05:28:48,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=435, Invalid=1635, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 05:28:48,592 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 8056 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 7546 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8068 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 7657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 7546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:28:48,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8068 Valid, 139 Invalid, 7657 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [111 Valid, 7546 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-04-02 05:28:48,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3710 states. [2023-04-02 05:28:49,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3710 to 3096. [2023-04-02 05:28:49,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3096 states, 2848 states have (on average 1.7310393258426966) internal successors, (4930), 2879 states have internal predecessors, (4930), 109 states have call successors, (109), 109 states have call predecessors, (109), 138 states have return successors, (210), 108 states have call predecessors, (210), 108 states have call successors, (210) [2023-04-02 05:28:49,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3096 states to 3096 states and 5249 transitions. [2023-04-02 05:28:49,236 INFO L78 Accepts]: Start accepts. Automaton has 3096 states and 5249 transitions. Word has length 232 [2023-04-02 05:28:49,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:28:49,236 INFO L495 AbstractCegarLoop]: Abstraction has 3096 states and 5249 transitions. [2023-04-02 05:28:49,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.666666666666668) internal successors, (212), 6 states have internal predecessors, (212), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:28:49,237 INFO L276 IsEmpty]: Start isEmpty. Operand 3096 states and 5249 transitions. [2023-04-02 05:28:49,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-04-02 05:28:49,241 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:28:49,241 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:28:49,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:28:49,242 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:28:49,242 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:28:49,242 INFO L85 PathProgramCache]: Analyzing trace with hash 2007950543, now seen corresponding path program 1 times [2023-04-02 05:28:49,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:28:49,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780910689] [2023-04-02 05:28:49,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:28:49,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:28:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:50,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:28:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:50,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:28:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:50,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-04-02 05:28:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:50,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-04-02 05:28:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:50,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-04-02 05:28:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:50,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-04-02 05:28:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:50,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:28:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:50,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-04-02 05:28:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:50,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-04-02 05:28:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:28:50,510 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 05:28:50,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:28:50,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780910689] [2023-04-02 05:28:50,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780910689] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:28:50,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:28:50,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:28:50,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518849305] [2023-04-02 05:28:50,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:28:50,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:28:50,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:28:50,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:28:50,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:28:50,514 INFO L87 Difference]: Start difference. First operand 3096 states and 5249 transitions. Second operand has 12 states, 12 states have (on average 17.75) internal successors, (213), 6 states have internal predecessors, (213), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:29:05,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:29:05,210 INFO L93 Difference]: Finished difference Result 18774 states and 31806 transitions. [2023-04-02 05:29:05,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:29:05,211 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 17.75) internal successors, (213), 6 states have internal predecessors, (213), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 233 [2023-04-02 05:29:05,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:29:05,296 INFO L225 Difference]: With dead ends: 18774 [2023-04-02 05:29:05,296 INFO L226 Difference]: Without dead ends: 16221 [2023-04-02 05:29:05,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=435, Invalid=1635, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 05:29:05,314 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 10530 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 7263 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10542 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 7408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 7263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:29:05,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10542 Valid, 139 Invalid, 7408 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [145 Valid, 7263 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-04-02 05:29:05,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16221 states. [2023-04-02 05:29:07,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16221 to 13183. [2023-04-02 05:29:07,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13183 states, 11960 states have (on average 1.7153846153846153) internal successors, (20516), 12126 states have internal predecessors, (20516), 529 states have call successors, (529), 529 states have call predecessors, (529), 693 states have return successors, (1119), 528 states have call predecessors, (1119), 528 states have call successors, (1119) [2023-04-02 05:29:07,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13183 states to 13183 states and 22164 transitions. [2023-04-02 05:29:07,560 INFO L78 Accepts]: Start accepts. Automaton has 13183 states and 22164 transitions. Word has length 233 [2023-04-02 05:29:07,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:29:07,561 INFO L495 AbstractCegarLoop]: Abstraction has 13183 states and 22164 transitions. [2023-04-02 05:29:07,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.75) internal successors, (213), 6 states have internal predecessors, (213), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:29:07,562 INFO L276 IsEmpty]: Start isEmpty. Operand 13183 states and 22164 transitions. [2023-04-02 05:29:07,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-04-02 05:29:07,568 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:29:07,568 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:29:07,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:29:07,568 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:29:07,569 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:29:07,569 INFO L85 PathProgramCache]: Analyzing trace with hash 909293189, now seen corresponding path program 1 times [2023-04-02 05:29:07,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:29:07,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075722263] [2023-04-02 05:29:07,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:29:07,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:29:07,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:08,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:29:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:08,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:29:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:08,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-04-02 05:29:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:08,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-04-02 05:29:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:08,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-04-02 05:29:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:08,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-04-02 05:29:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:09,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:29:09,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:09,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-04-02 05:29:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:09,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-04-02 05:29:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:09,119 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 05:29:09,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:29:09,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075722263] [2023-04-02 05:29:09,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075722263] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:29:09,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:29:09,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:29:09,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077573729] [2023-04-02 05:29:09,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:29:09,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:29:09,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:29:09,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:29:09,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:29:09,121 INFO L87 Difference]: Start difference. First operand 13183 states and 22164 transitions. Second operand has 12 states, 12 states have (on average 17.833333333333332) internal successors, (214), 6 states have internal predecessors, (214), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:29:28,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:29:28,832 INFO L93 Difference]: Finished difference Result 91248 states and 154332 transitions. [2023-04-02 05:29:28,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:29:28,833 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 17.833333333333332) internal successors, (214), 6 states have internal predecessors, (214), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 234 [2023-04-02 05:29:28,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:29:29,127 INFO L225 Difference]: With dead ends: 91248 [2023-04-02 05:29:29,128 INFO L226 Difference]: Without dead ends: 78608 [2023-04-02 05:29:29,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=435, Invalid=1635, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 05:29:29,171 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 10932 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 7306 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10944 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 7453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 7306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:29:29,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10944 Valid, 131 Invalid, 7453 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [147 Valid, 7306 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-04-02 05:29:29,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78608 states. [2023-04-02 05:29:36,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78608 to 63450. [2023-04-02 05:29:36,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63450 states, 57292 states have (on average 1.7078475179780772) internal successors, (97846), 58193 states have internal predecessors, (97846), 2629 states have call successors, (2629), 2629 states have call predecessors, (2629), 3528 states have return successors, (5976), 2628 states have call predecessors, (5976), 2628 states have call successors, (5976) [2023-04-02 05:29:36,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63450 states to 63450 states and 106451 transitions. [2023-04-02 05:29:36,599 INFO L78 Accepts]: Start accepts. Automaton has 63450 states and 106451 transitions. Word has length 234 [2023-04-02 05:29:36,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:29:36,600 INFO L495 AbstractCegarLoop]: Abstraction has 63450 states and 106451 transitions. [2023-04-02 05:29:36,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.833333333333332) internal successors, (214), 6 states have internal predecessors, (214), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:29:36,600 INFO L276 IsEmpty]: Start isEmpty. Operand 63450 states and 106451 transitions. [2023-04-02 05:29:36,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-04-02 05:29:36,606 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:29:36,607 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:29:36,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:29:36,607 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:29:36,607 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:29:36,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1158968646, now seen corresponding path program 1 times [2023-04-02 05:29:36,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:29:36,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590548169] [2023-04-02 05:29:36,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:29:36,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:29:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:37,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:29:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:37,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:29:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:37,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-04-02 05:29:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:37,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-04-02 05:29:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:37,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-04-02 05:29:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:37,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-04-02 05:29:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:37,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:29:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:38,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-04-02 05:29:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:38,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-04-02 05:29:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:29:38,061 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 05:29:38,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:29:38,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590548169] [2023-04-02 05:29:38,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590548169] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:29:38,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:29:38,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:29:38,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026226602] [2023-04-02 05:29:38,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:29:38,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:29:38,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:29:38,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:29:38,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:29:38,064 INFO L87 Difference]: Start difference. First operand 63450 states and 106451 transitions. Second operand has 12 states, 12 states have (on average 17.916666666666668) internal successors, (215), 6 states have internal predecessors, (215), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:30:21,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:30:21,144 INFO L93 Difference]: Finished difference Result 453138 states and 766146 transitions. [2023-04-02 05:30:21,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:30:21,149 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 17.916666666666668) internal successors, (215), 6 states have internal predecessors, (215), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 235 [2023-04-02 05:30:21,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:30:23,307 INFO L225 Difference]: With dead ends: 453138 [2023-04-02 05:30:23,308 INFO L226 Difference]: Without dead ends: 390231 [2023-04-02 05:30:23,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=435, Invalid=1635, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 05:30:23,474 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 10994 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 7267 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11006 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 7416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 7267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:30:23,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11006 Valid, 131 Invalid, 7416 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [149 Valid, 7267 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-04-02 05:30:23,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390231 states. [2023-04-02 05:30:56,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390231 to 314473. [2023-04-02 05:30:57,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314473 states, 283340 states have (on average 1.7032540410813863) internal successors, (482600), 288216 states have internal predecessors, (482600), 13129 states have call successors, (13129), 13129 states have call predecessors, (13129), 18003 states have return successors, (31797), 13128 states have call predecessors, (31797), 13128 states have call successors, (31797) [2023-04-02 05:30:58,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314473 states to 314473 states and 527526 transitions. [2023-04-02 05:30:58,971 INFO L78 Accepts]: Start accepts. Automaton has 314473 states and 527526 transitions. Word has length 235 [2023-04-02 05:30:58,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:30:58,972 INFO L495 AbstractCegarLoop]: Abstraction has 314473 states and 527526 transitions. [2023-04-02 05:30:58,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.916666666666668) internal successors, (215), 6 states have internal predecessors, (215), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:30:58,972 INFO L276 IsEmpty]: Start isEmpty. Operand 314473 states and 527526 transitions. [2023-04-02 05:30:58,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-04-02 05:30:58,980 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:30:58,980 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:30:58,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:30:58,981 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:30:58,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:30:58,981 INFO L85 PathProgramCache]: Analyzing trace with hash 257288284, now seen corresponding path program 1 times [2023-04-02 05:30:58,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:30:58,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562404381] [2023-04-02 05:30:58,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:30:58,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:30:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:59,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:30:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:30:59,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:30:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:00,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-04-02 05:31:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:00,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-04-02 05:31:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:00,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-04-02 05:31:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:00,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-04-02 05:31:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:00,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:31:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:00,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-04-02 05:31:00,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:00,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-04-02 05:31:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:31:00,355 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 05:31:00,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:31:00,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562404381] [2023-04-02 05:31:00,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562404381] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:31:00,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:31:00,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:31:00,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511331880] [2023-04-02 05:31:00,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:31:00,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:31:00,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:31:00,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:31:00,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:31:00,357 INFO L87 Difference]: Start difference. First operand 314473 states and 527526 transitions. Second operand has 12 states, 12 states have (on average 18.0) internal successors, (216), 6 states have internal predecessors, (216), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9)