/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.3.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:23:15,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:23:15,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:23:15,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:23:15,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:23:15,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:23:15,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:23:15,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:23:15,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:23:15,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:23:15,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:23:15,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:23:15,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:23:15,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:23:15,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:23:15,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:23:15,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:23:15,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:23:15,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:23:15,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:23:15,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:23:15,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:23:15,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:23:15,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:23:15,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-02 05:23:15,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:23:15,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:23:15,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:23:15,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:23:15,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:23:15,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:23:15,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:23:15,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:23:15,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:23:15,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:23:15,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:23:15,178 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 05:23:15,200 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:23:15,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:23:15,200 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:23:15,201 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:23:15,201 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:23:15,202 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:23:15,202 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:23:15,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:23:15,202 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:23:15,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:23:15,203 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:23:15,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:23:15,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:23:15,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:23:15,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:23:15,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:23:15,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:23:15,203 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:23:15,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:23:15,204 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:23:15,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:23:15,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:23:15,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:23:15,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:23:15,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:23:15,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:23:15,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:23:15,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:23:15,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:23:15,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:23:15,205 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:23:15,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:23:15,205 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:23:15,205 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:23:15,205 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:23:15,205 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:23:15,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:23:15,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:23:15,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:23:15,390 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:23:15,390 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:23:15,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c [2023-04-02 05:23:16,523 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:23:16,740 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:23:16,740 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c [2023-04-02 05:23:16,753 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ec256d73/b263282aa7d544e6a45345271c0a9555/FLAG0183998c1 [2023-04-02 05:23:16,764 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ec256d73/b263282aa7d544e6a45345271c0a9555 [2023-04-02 05:23:16,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:23:16,767 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:23:16,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:23:16,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:23:16,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:23:16,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:23:16" (1/1) ... [2023-04-02 05:23:16,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6622b0d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:23:16, skipping insertion in model container [2023-04-02 05:23:16,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:23:16" (1/1) ... [2023-04-02 05:23:16,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:23:16,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:23:16,971 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.3.1.ufo.UNBOUNDED.pals.c[12951,12964] [2023-04-02 05:23:16,974 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:23:16,992 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:23:17,028 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.3.1.ufo.UNBOUNDED.pals.c[12951,12964] [2023-04-02 05:23:17,029 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:23:17,040 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:23:17,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:23:17 WrapperNode [2023-04-02 05:23:17,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:23:17,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:23:17,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:23:17,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:23:17,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:23:17" (1/1) ... [2023-04-02 05:23:17,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:23:17" (1/1) ... [2023-04-02 05:23:17,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:23:17" (1/1) ... [2023-04-02 05:23:17,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:23:17" (1/1) ... [2023-04-02 05:23:17,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:23:17" (1/1) ... [2023-04-02 05:23:17,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:23:17" (1/1) ... [2023-04-02 05:23:17,075 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:23:17" (1/1) ... [2023-04-02 05:23:17,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:23:17" (1/1) ... [2023-04-02 05:23:17,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:23:17,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:23:17,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:23:17,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:23:17,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:23:17" (1/1) ... [2023-04-02 05:23:17,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:23:17,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:23:17,103 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 05:23:17,114 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 05:23:17,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:23:17,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:23:17,141 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:23:17,141 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:23:17,141 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:23:17,141 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:23:17,141 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:23:17,141 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:23:17,141 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:23:17,141 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:23:17,141 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:23:17,142 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:23:17,142 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:23:17,142 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:23:17,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:23:17,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:23:17,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-02 05:23:17,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:23:17,142 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:23:17,142 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:23:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:23:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:23:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:23:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:23:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:23:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:23:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:23:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:23:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:23:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:23:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:23:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:23:17,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:23:17,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:23:17,247 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:23:17,249 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:23:17,642 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:23:17,649 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:23:17,649 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:23:17,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:23:17 BoogieIcfgContainer [2023-04-02 05:23:17,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:23:17,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:23:17,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:23:17,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:23:17,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:23:16" (1/3) ... [2023-04-02 05:23:17,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557b1222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:23:17, skipping insertion in model container [2023-04-02 05:23:17,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:23:17" (2/3) ... [2023-04-02 05:23:17,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557b1222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:23:17, skipping insertion in model container [2023-04-02 05:23:17,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:23:17" (3/3) ... [2023-04-02 05:23:17,656 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c [2023-04-02 05:23:17,670 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:23:17,670 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:23:17,711 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:23:17,717 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;@2f516274, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:23:17,717 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:23:17,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 141 states have (on average 1.6950354609929077) internal successors, (239), 143 states have internal predecessors, (239), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-04-02 05:23:17,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-02 05:23:17,731 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:23:17,731 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] [2023-04-02 05:23:17,731 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:23:17,735 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:23:17,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1910660733, now seen corresponding path program 1 times [2023-04-02 05:23:17,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:23:17,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430826860] [2023-04-02 05:23:17,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:23:17,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:23:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:18,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:23:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:18,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:23:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:18,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:23:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:18,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 05:23:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:18,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 05:23:18,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:18,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 05:23:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:18,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:23:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:18,328 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 05:23:18,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:23:18,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430826860] [2023-04-02 05:23:18,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430826860] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:23:18,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:23:18,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 05:23:18,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537617338] [2023-04-02 05:23:18,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:23:18,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:23:18,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:23:18,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:23:18,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:23:18,387 INFO L87 Difference]: Start difference. First operand has 161 states, 141 states have (on average 1.6950354609929077) internal successors, (239), 143 states have internal predecessors, (239), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:23:19,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:23:19,129 INFO L93 Difference]: Finished difference Result 266 states and 423 transitions. [2023-04-02 05:23:19,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:23:19,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2023-04-02 05:23:19,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:23:19,139 INFO L225 Difference]: With dead ends: 266 [2023-04-02 05:23:19,140 INFO L226 Difference]: Without dead ends: 168 [2023-04-02 05:23:19,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:23:19,145 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 478 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:23:19,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 39 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 05:23:19,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-04-02 05:23:19,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 156. [2023-04-02 05:23:19,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 138 states have (on average 1.681159420289855) internal successors, (232), 139 states have internal predecessors, (232), 9 states have call successors, (9), 9 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-04-02 05:23:19,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 249 transitions. [2023-04-02 05:23:19,205 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 249 transitions. Word has length 65 [2023-04-02 05:23:19,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:23:19,205 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 249 transitions. [2023-04-02 05:23:19,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:23:19,206 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 249 transitions. [2023-04-02 05:23:19,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-02 05:23:19,207 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:23:19,208 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] [2023-04-02 05:23:19,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:23:19,208 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:23:19,208 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:23:19,208 INFO L85 PathProgramCache]: Analyzing trace with hash 881301435, now seen corresponding path program 1 times [2023-04-02 05:23:19,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:23:19,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795349781] [2023-04-02 05:23:19,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:23:19,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:23:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:19,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:23:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:19,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:23:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:19,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:23:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:19,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 05:23:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:19,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 05:23:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:19,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 05:23:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:19,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:23:19,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:19,613 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 05:23:19,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:23:19,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795349781] [2023-04-02 05:23:19,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795349781] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:23:19,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:23:19,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:23:19,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426419035] [2023-04-02 05:23:19,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:23:19,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:23:19,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:23:19,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:23:19,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:23:19,616 INFO L87 Difference]: Start difference. First operand 156 states and 249 transitions. Second operand has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:23:21,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:23:21,185 INFO L93 Difference]: Finished difference Result 264 states and 415 transitions. [2023-04-02 05:23:21,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 05:23:21,186 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2023-04-02 05:23:21,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:23:21,187 INFO L225 Difference]: With dead ends: 264 [2023-04-02 05:23:21,187 INFO L226 Difference]: Without dead ends: 168 [2023-04-02 05:23:21,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:23:21,189 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 323 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 1812 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 1845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:23:21,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 122 Invalid, 1845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1812 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:23:21,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-04-02 05:23:21,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 156. [2023-04-02 05:23:21,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 138 states have (on average 1.5072463768115942) internal successors, (208), 139 states have internal predecessors, (208), 9 states have call successors, (9), 9 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-04-02 05:23:21,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 225 transitions. [2023-04-02 05:23:21,207 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 225 transitions. Word has length 65 [2023-04-02 05:23:21,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:23:21,207 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 225 transitions. [2023-04-02 05:23:21,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:23:21,207 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 225 transitions. [2023-04-02 05:23:21,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-04-02 05:23:21,208 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:23:21,208 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] [2023-04-02 05:23:21,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:23:21,209 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:23:21,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:23:21,209 INFO L85 PathProgramCache]: Analyzing trace with hash -782332566, now seen corresponding path program 1 times [2023-04-02 05:23:21,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:23:21,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730882886] [2023-04-02 05:23:21,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:23:21,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:23:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:21,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:23:21,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:21,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:23:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:21,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:23:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:21,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 05:23:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:21,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:23:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:21,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:23:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:21,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 05:23:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:21,645 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 05:23:21,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:23:21,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730882886] [2023-04-02 05:23:21,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730882886] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:23:21,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:23:21,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:23:21,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498035481] [2023-04-02 05:23:21,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:23:21,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:23:21,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:23:21,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:23:21,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:23:21,647 INFO L87 Difference]: Start difference. First operand 156 states and 225 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 9 states have internal predecessors, (72), 3 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:23:26,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:23:26,522 INFO L93 Difference]: Finished difference Result 1062 states and 1646 transitions. [2023-04-02 05:23:26,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-04-02 05:23:26,523 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 9 states have internal predecessors, (72), 3 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 88 [2023-04-02 05:23:26,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:23:26,528 INFO L225 Difference]: With dead ends: 1062 [2023-04-02 05:23:26,528 INFO L226 Difference]: Without dead ends: 972 [2023-04-02 05:23:26,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1053 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=724, Invalid=2816, Unknown=0, NotChecked=0, Total=3540 [2023-04-02 05:23:26,531 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 2704 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 2694 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2713 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 2841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 2694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:23:26,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2713 Valid, 139 Invalid, 2841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 2694 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-04-02 05:23:26,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2023-04-02 05:23:26,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 592. [2023-04-02 05:23:26,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 518 states have (on average 1.583011583011583) internal successors, (820), 525 states have internal predecessors, (820), 34 states have call successors, (34), 34 states have call predecessors, (34), 39 states have return successors, (55), 33 states have call predecessors, (55), 33 states have call successors, (55) [2023-04-02 05:23:26,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 909 transitions. [2023-04-02 05:23:26,601 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 909 transitions. Word has length 88 [2023-04-02 05:23:26,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:23:26,602 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 909 transitions. [2023-04-02 05:23:26,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 9 states have internal predecessors, (72), 3 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:23:26,602 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 909 transitions. [2023-04-02 05:23:26,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-04-02 05:23:26,604 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:23:26,604 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] [2023-04-02 05:23:26,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:23:26,604 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:23:26,605 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:23:26,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1800429311, now seen corresponding path program 1 times [2023-04-02 05:23:26,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:23:26,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133039369] [2023-04-02 05:23:26,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:23:26,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:23:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:26,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:23:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:26,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:23:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:26,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:23:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:26,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 05:23:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:26,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:23:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:26,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:23:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:26,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 05:23:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:26,977 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 05:23:26,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:23:26,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133039369] [2023-04-02 05:23:26,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133039369] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:23:26,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:23:26,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:23:26,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179412307] [2023-04-02 05:23:26,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:23:26,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:23:26,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:23:26,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:23:26,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:23:26,985 INFO L87 Difference]: Start difference. First operand 592 states and 909 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:23:29,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:23:29,816 INFO L93 Difference]: Finished difference Result 2067 states and 3201 transitions. [2023-04-02 05:23:29,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 05:23:29,818 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 89 [2023-04-02 05:23:29,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:23:29,824 INFO L225 Difference]: With dead ends: 2067 [2023-04-02 05:23:29,824 INFO L226 Difference]: Without dead ends: 1541 [2023-04-02 05:23:29,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:23:29,827 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1171 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 2102 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 2155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:23:29,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1179 Valid, 112 Invalid, 2155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2102 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-02 05:23:29,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2023-04-02 05:23:29,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1347. [2023-04-02 05:23:29,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1169 states have (on average 1.5799828913601368) internal successors, (1847), 1190 states have internal predecessors, (1847), 79 states have call successors, (79), 79 states have call predecessors, (79), 98 states have return successors, (150), 78 states have call predecessors, (150), 78 states have call successors, (150) [2023-04-02 05:23:29,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 2076 transitions. [2023-04-02 05:23:29,974 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 2076 transitions. Word has length 89 [2023-04-02 05:23:29,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:23:29,975 INFO L495 AbstractCegarLoop]: Abstraction has 1347 states and 2076 transitions. [2023-04-02 05:23:29,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:23:29,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 2076 transitions. [2023-04-02 05:23:29,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-04-02 05:23:29,976 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:23:29,976 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] [2023-04-02 05:23:29,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:23:29,976 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:23:29,977 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:23:29,977 INFO L85 PathProgramCache]: Analyzing trace with hash 946625025, now seen corresponding path program 1 times [2023-04-02 05:23:29,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:23:29,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830669439] [2023-04-02 05:23:29,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:23:29,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:23:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:30,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:23:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:30,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:23:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:30,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:23:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:30,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 05:23:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:30,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:23:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:30,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:23:30,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:30,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 05:23:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:30,302 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 05:23:30,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:23:30,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830669439] [2023-04-02 05:23:30,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830669439] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:23:30,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:23:30,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:23:30,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274282548] [2023-04-02 05:23:30,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:23:30,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:23:30,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:23:30,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:23:30,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:23:30,305 INFO L87 Difference]: Start difference. First operand 1347 states and 2076 transitions. Second operand has 10 states, 10 states have (on average 7.4) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:23:33,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:23:33,142 INFO L93 Difference]: Finished difference Result 8589 states and 13311 transitions. [2023-04-02 05:23:33,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 05:23:33,143 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 90 [2023-04-02 05:23:33,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:23:33,167 INFO L225 Difference]: With dead ends: 8589 [2023-04-02 05:23:33,167 INFO L226 Difference]: Without dead ends: 7308 [2023-04-02 05:23:33,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:23:33,178 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1926 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1934 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 1958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:23:33,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1934 Valid, 103 Invalid, 1958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1866 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 05:23:33,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7308 states. [2023-04-02 05:23:33,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7308 to 6370. [2023-04-02 05:23:33,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6370 states, 5497 states have (on average 1.5763143532836092) internal successors, (8665), 5613 states have internal predecessors, (8665), 379 states have call successors, (379), 379 states have call predecessors, (379), 493 states have return successors, (819), 378 states have call predecessors, (819), 378 states have call successors, (819) [2023-04-02 05:23:33,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6370 states to 6370 states and 9863 transitions. [2023-04-02 05:23:33,660 INFO L78 Accepts]: Start accepts. Automaton has 6370 states and 9863 transitions. Word has length 90 [2023-04-02 05:23:33,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:23:33,661 INFO L495 AbstractCegarLoop]: Abstraction has 6370 states and 9863 transitions. [2023-04-02 05:23:33,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:23:33,661 INFO L276 IsEmpty]: Start isEmpty. Operand 6370 states and 9863 transitions. [2023-04-02 05:23:33,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-04-02 05:23:33,665 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:23:33,666 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] [2023-04-02 05:23:33,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:23:33,666 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:23:33,666 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:23:33,666 INFO L85 PathProgramCache]: Analyzing trace with hash 154278584, now seen corresponding path program 1 times [2023-04-02 05:23:33,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:23:33,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284098065] [2023-04-02 05:23:33,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:23:33,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:23:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:33,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:23:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:33,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:23:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:33,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:23:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:33,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 05:23:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:33,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:23:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:33,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:23:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:34,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 05:23:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:34,020 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 05:23:34,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:23:34,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284098065] [2023-04-02 05:23:34,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284098065] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:23:34,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:23:34,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:23:34,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571147974] [2023-04-02 05:23:34,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:23:34,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:23:34,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:23:34,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:23:34,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:23:34,023 INFO L87 Difference]: Start difference. First operand 6370 states and 9863 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:23:38,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:23:38,332 INFO L93 Difference]: Finished difference Result 37220 states and 57574 transitions. [2023-04-02 05:23:38,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 05:23:38,333 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 91 [2023-04-02 05:23:38,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:23:38,438 INFO L225 Difference]: With dead ends: 37220 [2023-04-02 05:23:38,438 INFO L226 Difference]: Without dead ends: 30916 [2023-04-02 05:23:38,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:23:38,459 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1663 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1671 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 1957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:23:38,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1671 Valid, 111 Invalid, 1957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1875 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 05:23:38,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30916 states. [2023-04-02 05:23:40,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30916 to 26924. [2023-04-02 05:23:40,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26924 states, 23128 states have (on average 1.5654617779315116) internal successors, (36206), 23707 states have internal predecessors, (36206), 1609 states have call successors, (1609), 1609 states have call predecessors, (1609), 2186 states have return successors, (3828), 1608 states have call predecessors, (3828), 1608 states have call successors, (3828) [2023-04-02 05:23:40,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26924 states to 26924 states and 41643 transitions. [2023-04-02 05:23:40,561 INFO L78 Accepts]: Start accepts. Automaton has 26924 states and 41643 transitions. Word has length 91 [2023-04-02 05:23:40,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:23:40,562 INFO L495 AbstractCegarLoop]: Abstraction has 26924 states and 41643 transitions. [2023-04-02 05:23:40,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:23:40,562 INFO L276 IsEmpty]: Start isEmpty. Operand 26924 states and 41643 transitions. [2023-04-02 05:23:40,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-04-02 05:23:40,565 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:23:40,565 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] [2023-04-02 05:23:40,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:23:40,565 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:23:40,565 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:23:40,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1194565552, now seen corresponding path program 1 times [2023-04-02 05:23:40,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:23:40,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539457867] [2023-04-02 05:23:40,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:23:40,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:23:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:40,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:23:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:40,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:23:40,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:40,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:23:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:40,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 05:23:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:40,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:23:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:40,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:23:40,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:40,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 05:23:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:40,936 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 05:23:40,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:23:40,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539457867] [2023-04-02 05:23:40,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539457867] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:23:40,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:23:40,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 05:23:40,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031863524] [2023-04-02 05:23:40,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:23:40,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 05:23:40,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:23:40,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 05:23:40,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:23:40,937 INFO L87 Difference]: Start difference. First operand 26924 states and 41643 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:23:47,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:23:47,745 INFO L93 Difference]: Finished difference Result 106042 states and 165443 transitions. [2023-04-02 05:23:47,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 05:23:47,746 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 93 [2023-04-02 05:23:47,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:23:47,984 INFO L225 Difference]: With dead ends: 106042 [2023-04-02 05:23:47,984 INFO L226 Difference]: Without dead ends: 79184 [2023-04-02 05:23:48,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:23:48,044 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 919 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:23:48,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 66 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 05:23:48,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79184 states. [2023-04-02 05:23:53,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79184 to 69321. [2023-04-02 05:23:53,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69321 states, 58561 states have (on average 1.5251617971004594) internal successors, (89315), 59868 states have internal predecessors, (89315), 4727 states have call successors, (4727), 4727 states have call predecessors, (4727), 6032 states have return successors, (12513), 4726 states have call predecessors, (12513), 4726 states have call successors, (12513) [2023-04-02 05:23:53,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69321 states to 69321 states and 106555 transitions. [2023-04-02 05:23:53,951 INFO L78 Accepts]: Start accepts. Automaton has 69321 states and 106555 transitions. Word has length 93 [2023-04-02 05:23:53,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:23:53,951 INFO L495 AbstractCegarLoop]: Abstraction has 69321 states and 106555 transitions. [2023-04-02 05:23:53,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:23:53,952 INFO L276 IsEmpty]: Start isEmpty. Operand 69321 states and 106555 transitions. [2023-04-02 05:23:53,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-04-02 05:23:53,954 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:23:53,954 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] [2023-04-02 05:23:53,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:23:53,954 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:23:53,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:23:53,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1358643889, now seen corresponding path program 1 times [2023-04-02 05:23:53,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:23:53,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525643644] [2023-04-02 05:23:53,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:23:53,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:23:53,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:54,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:23:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:54,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:23:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:54,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:23:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:54,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 05:23:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:54,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 05:23:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:54,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:23:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:54,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 05:23:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:54,362 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 05:23:54,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:23:54,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525643644] [2023-04-02 05:23:54,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525643644] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:23:54,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:23:54,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:23:54,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729977973] [2023-04-02 05:23:54,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:23:54,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:23:54,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:23:54,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:23:54,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:23:54,364 INFO L87 Difference]: Start difference. First operand 69321 states and 106555 transitions. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:24:04,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:24:04,377 INFO L93 Difference]: Finished difference Result 121815 states and 187588 transitions. [2023-04-02 05:24:04,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-04-02 05:24:04,378 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 94 [2023-04-02 05:24:04,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:24:04,766 INFO L225 Difference]: With dead ends: 121815 [2023-04-02 05:24:04,766 INFO L226 Difference]: Without dead ends: 81781 [2023-04-02 05:24:04,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1624 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=854, Invalid=3976, Unknown=0, NotChecked=0, Total=4830 [2023-04-02 05:24:04,826 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 3315 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 3260 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3328 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 3424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 3260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:24:04,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3328 Valid, 151 Invalid, 3424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 3260 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-04-02 05:24:04,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81781 states. [2023-04-02 05:24:09,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81781 to 68721. [2023-04-02 05:24:10,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68721 states, 58094 states have (on average 1.524615278686267) internal successors, (88571), 59384 states have internal predecessors, (88571), 4669 states have call successors, (4669), 4669 states have call predecessors, (4669), 5957 states have return successors, (12237), 4668 states have call predecessors, (12237), 4668 states have call successors, (12237) [2023-04-02 05:24:10,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68721 states to 68721 states and 105477 transitions. [2023-04-02 05:24:10,231 INFO L78 Accepts]: Start accepts. Automaton has 68721 states and 105477 transitions. Word has length 94 [2023-04-02 05:24:10,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:24:10,231 INFO L495 AbstractCegarLoop]: Abstraction has 68721 states and 105477 transitions. [2023-04-02 05:24:10,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:24:10,232 INFO L276 IsEmpty]: Start isEmpty. Operand 68721 states and 105477 transitions. [2023-04-02 05:24:10,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-04-02 05:24:10,234 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:24:10,234 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] [2023-04-02 05:24:10,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:24:10,234 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:24:10,234 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:24:10,234 INFO L85 PathProgramCache]: Analyzing trace with hash 145331354, now seen corresponding path program 1 times [2023-04-02 05:24:10,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:24:10,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427569024] [2023-04-02 05:24:10,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:24:10,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:24:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:10,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:24:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:10,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:24:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:10,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:24:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:10,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 05:24:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:10,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 05:24:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:10,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:24:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:10,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 05:24:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:10,835 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 05:24:10,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:24:10,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427569024] [2023-04-02 05:24:10,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427569024] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:24:10,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:24:10,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:24:10,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039493614] [2023-04-02 05:24:10,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:24:10,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:24:10,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:24:10,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:24:10,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:24:10,839 INFO L87 Difference]: Start difference. First operand 68721 states and 105477 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:24:19,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:24:19,113 INFO L93 Difference]: Finished difference Result 138861 states and 213325 transitions. [2023-04-02 05:24:19,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:24:19,113 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 95 [2023-04-02 05:24:19,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:24:19,603 INFO L225 Difference]: With dead ends: 138861 [2023-04-02 05:24:19,604 INFO L226 Difference]: Without dead ends: 108625 [2023-04-02 05:24:19,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2023-04-02 05:24:19,655 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 2215 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 2057 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2224 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 2144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:24:19,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2224 Valid, 97 Invalid, 2144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2057 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-02 05:24:19,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108625 states. [2023-04-02 05:24:26,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108625 to 95598. [2023-04-02 05:24:27,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95598 states, 80896 states have (on average 1.5267380340189873) internal successors, (123507), 82721 states have internal predecessors, (123507), 6439 states have call successors, (6439), 6439 states have call predecessors, (6439), 8262 states have return successors, (16727), 6438 states have call predecessors, (16727), 6438 states have call successors, (16727) [2023-04-02 05:24:27,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95598 states to 95598 states and 146673 transitions. [2023-04-02 05:24:27,424 INFO L78 Accepts]: Start accepts. Automaton has 95598 states and 146673 transitions. Word has length 95 [2023-04-02 05:24:27,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:24:27,425 INFO L495 AbstractCegarLoop]: Abstraction has 95598 states and 146673 transitions. [2023-04-02 05:24:27,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:24:27,425 INFO L276 IsEmpty]: Start isEmpty. Operand 95598 states and 146673 transitions. [2023-04-02 05:24:27,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-04-02 05:24:27,428 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:24:27,428 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] [2023-04-02 05:24:27,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:24:27,429 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:24:27,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:24:27,429 INFO L85 PathProgramCache]: Analyzing trace with hash 846931228, now seen corresponding path program 1 times [2023-04-02 05:24:27,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:24:27,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848171674] [2023-04-02 05:24:27,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:24:27,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:24:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:27,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:24:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:27,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:24:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:27,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:24:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:27,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 05:24:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:27,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 05:24:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:27,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:24:27,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:27,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 05:24:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:27,965 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 05:24:27,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:24:27,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848171674] [2023-04-02 05:24:27,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848171674] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:24:27,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:24:27,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:24:27,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071575550] [2023-04-02 05:24:27,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:24:27,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:24:27,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:24:27,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:24:27,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:24:27,967 INFO L87 Difference]: Start difference. First operand 95598 states and 146673 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:24:35,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:24:35,819 INFO L93 Difference]: Finished difference Result 154845 states and 237489 transitions. [2023-04-02 05:24:35,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:24:35,819 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 95 [2023-04-02 05:24:35,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:24:36,229 INFO L225 Difference]: With dead ends: 154845 [2023-04-02 05:24:36,229 INFO L226 Difference]: Without dead ends: 94011 [2023-04-02 05:24:36,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2023-04-02 05:24:36,313 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1106 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 2250 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 2277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:24:36,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 116 Invalid, 2277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2250 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 05:24:36,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94011 states. [2023-04-02 05:24:42,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94011 to 82692. [2023-04-02 05:24:42,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82692 states, 70016 states have (on average 1.5250228519195612) internal successors, (106776), 71581 states have internal predecessors, (106776), 5556 states have call successors, (5556), 5556 states have call predecessors, (5556), 7119 states have return successors, (14363), 5555 states have call predecessors, (14363), 5555 states have call successors, (14363) [2023-04-02 05:24:42,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82692 states to 82692 states and 126695 transitions. [2023-04-02 05:24:42,533 INFO L78 Accepts]: Start accepts. Automaton has 82692 states and 126695 transitions. Word has length 95 [2023-04-02 05:24:42,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:24:42,534 INFO L495 AbstractCegarLoop]: Abstraction has 82692 states and 126695 transitions. [2023-04-02 05:24:42,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:24:42,539 INFO L276 IsEmpty]: Start isEmpty. Operand 82692 states and 126695 transitions. [2023-04-02 05:24:42,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-04-02 05:24:42,541 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:24:42,541 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] [2023-04-02 05:24:42,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 05:24:42,541 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:24:42,542 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:24:42,542 INFO L85 PathProgramCache]: Analyzing trace with hash 734348098, now seen corresponding path program 1 times [2023-04-02 05:24:42,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:24:42,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780455931] [2023-04-02 05:24:42,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:24:42,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:24:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:42,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:24:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:42,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:24:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:42,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:24:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:42,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 05:24:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:42,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:24:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:42,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-04-02 05:24:42,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:42,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:24:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:42,959 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 05:24:42,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:24:42,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780455931] [2023-04-02 05:24:42,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780455931] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:24:42,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:24:42,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 05:24:42,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923270817] [2023-04-02 05:24:42,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:24:42,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:24:42,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:24:42,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:24:42,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:24:42,960 INFO L87 Difference]: Start difference. First operand 82692 states and 126695 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:24:58,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:24:58,346 INFO L93 Difference]: Finished difference Result 277296 states and 431698 transitions. [2023-04-02 05:24:58,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 05:24:58,346 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 95 [2023-04-02 05:24:58,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:24:59,058 INFO L225 Difference]: With dead ends: 277296 [2023-04-02 05:24:59,058 INFO L226 Difference]: Without dead ends: 194635 [2023-04-02 05:24:59,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2023-04-02 05:24:59,194 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 1773 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 1470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:24:59,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1783 Valid, 94 Invalid, 1470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 05:24:59,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194635 states. [2023-04-02 05:25:12,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194635 to 172481. [2023-04-02 05:25:12,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172481 states, 145740 states have (on average 1.4988747083847949) internal successors, (218446), 148990 states have internal predecessors, (218446), 11746 states have call successors, (11746), 11746 states have call predecessors, (11746), 14994 states have return successors, (30989), 11747 states have call predecessors, (30989), 11745 states have call successors, (30989) [2023-04-02 05:25:13,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172481 states to 172481 states and 261181 transitions. [2023-04-02 05:25:13,703 INFO L78 Accepts]: Start accepts. Automaton has 172481 states and 261181 transitions. Word has length 95 [2023-04-02 05:25:13,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:25:13,703 INFO L495 AbstractCegarLoop]: Abstraction has 172481 states and 261181 transitions. [2023-04-02 05:25:13,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:25:13,703 INFO L276 IsEmpty]: Start isEmpty. Operand 172481 states and 261181 transitions. [2023-04-02 05:25:13,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 05:25:13,708 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:25:13,708 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] [2023-04-02 05:25:13,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 05:25:13,708 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:25:13,708 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:25:13,708 INFO L85 PathProgramCache]: Analyzing trace with hash 974762528, now seen corresponding path program 1 times [2023-04-02 05:25:13,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:25:13,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796409546] [2023-04-02 05:25:13,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:25:13,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:25:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:13,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:25:13,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:13,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:25:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:13,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:25:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:14,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 05:25:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:14,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:25:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:14,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:25:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:14,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 05:25:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:14,362 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 05:25:14,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:25:14,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796409546] [2023-04-02 05:25:14,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796409546] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:25:14,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:25:14,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 05:25:14,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382524948] [2023-04-02 05:25:14,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:25:14,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:25:14,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:25:14,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:25:14,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:25:14,364 INFO L87 Difference]: Start difference. First operand 172481 states and 261181 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7)