/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.4.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:35:27,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:35:27,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:35:27,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:35:27,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:35:27,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:35:27,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:35:27,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:35:27,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:35:27,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:35:27,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:35:27,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:35:27,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:35:27,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:35:27,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:35:27,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:35:27,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:35:27,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:35:27,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:35:27,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:35:27,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:35:27,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:35:27,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:35:27,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:35:27,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-31 01:35:27,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:35:27,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:35:27,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:35:27,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:35:27,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:35:27,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:35:27,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:35:27,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:35:27,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:35:27,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:35:27,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:35:27,877 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-31 01:35:27,904 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:35:27,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:35:27,904 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:35:27,905 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:35:27,906 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:35:27,906 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:35:27,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:35:27,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:35:27,907 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:35:27,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:35:27,908 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:35:27,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:35:27,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:35:27,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:35:27,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:35:27,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:35:27,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:35:27,909 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:35:27,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:35:27,909 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:35:27,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:35:27,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:35:27,909 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:35:27,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:35:27,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:35:27,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:35:27,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:35:27,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:35:27,910 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:35:27,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:35:27,911 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:35:27,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:35:27,911 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:35:27,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:35:27,911 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:35:27,911 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:35:28,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:35:28,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:35:28,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:35:28,197 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:35:28,198 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:35:28,199 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c [2023-03-31 01:35:29,290 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:35:29,560 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:35:29,560 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c [2023-03-31 01:35:29,582 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f46024995/e90728860b79416bbb02304a35ea72bd/FLAGb2ed0e9ec [2023-03-31 01:35:29,593 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f46024995/e90728860b79416bbb02304a35ea72bd [2023-03-31 01:35:29,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:35:29,597 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:35:29,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:35:29,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:35:29,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:35:29,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:35:29" (1/1) ... [2023-03-31 01:35:29,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@542ceeef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:35:29, skipping insertion in model container [2023-03-31 01:35:29,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:35:29" (1/1) ... [2023-03-31 01:35:29,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:35:29,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:35:29,889 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.4.2.ufo.UNBOUNDED.pals.c[31172,31185] [2023-03-31 01:35:29,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:35:29,911 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:35:29,991 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.4.2.ufo.UNBOUNDED.pals.c[31172,31185] [2023-03-31 01:35:29,992 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:35:30,006 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:35:30,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:35:30 WrapperNode [2023-03-31 01:35:30,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:35:30,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:35:30,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:35:30,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:35:30,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:35:30" (1/1) ... [2023-03-31 01:35:30,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:35:30" (1/1) ... [2023-03-31 01:35:30,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:35:30" (1/1) ... [2023-03-31 01:35:30,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:35:30" (1/1) ... [2023-03-31 01:35:30,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:35:30" (1/1) ... [2023-03-31 01:35:30,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:35:30" (1/1) ... [2023-03-31 01:35:30,097 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:35:30" (1/1) ... [2023-03-31 01:35:30,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:35:30" (1/1) ... [2023-03-31 01:35:30,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:35:30,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:35:30,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:35:30,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:35:30,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:35:30" (1/1) ... [2023-03-31 01:35:30,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:35:30,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:35:30,154 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 01:35:30,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 01:35:30,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:35:30,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:35:30,198 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:35:30,199 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 01:35:30,199 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-03-31 01:35:30,199 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-03-31 01:35:30,199 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-03-31 01:35:30,199 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-03-31 01:35:30,199 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-03-31 01:35:30,199 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-03-31 01:35:30,199 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:35:30,199 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-03-31 01:35:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:35:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:35:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:35:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:35:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-31 01:35:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-03-31 01:35:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 01:35:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-31 01:35:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 01:35:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-03-31 01:35:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-03-31 01:35:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-03-31 01:35:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-03-31 01:35:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-03-31 01:35:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-03-31 01:35:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-03-31 01:35:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-03-31 01:35:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:35:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:35:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:35:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:35:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:35:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:35:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:35:30,369 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:35:30,371 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:35:31,314 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:35:31,332 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:35:31,332 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 01:35:31,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:35:31 BoogieIcfgContainer [2023-03-31 01:35:31,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:35:31,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:35:31,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:35:31,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:35:31,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:35:29" (1/3) ... [2023-03-31 01:35:31,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18356fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:35:31, skipping insertion in model container [2023-03-31 01:35:31,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:35:30" (2/3) ... [2023-03-31 01:35:31,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18356fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:35:31, skipping insertion in model container [2023-03-31 01:35:31,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:35:31" (3/3) ... [2023-03-31 01:35:31,342 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c [2023-03-31 01:35:31,357 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:35:31,357 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:35:31,420 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:35:31,426 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;@5786ffce, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:35:31,427 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:35:31,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 341 states, 319 states have (on average 1.7899686520376175) internal successors, (571), 321 states have internal predecessors, (571), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-03-31 01:35:31,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-03-31 01:35:31,456 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:35:31,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:35:31,457 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:35:31,461 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:35:31,461 INFO L85 PathProgramCache]: Analyzing trace with hash -785977843, now seen corresponding path program 1 times [2023-03-31 01:35:31,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:35:31,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157386664] [2023-03-31 01:35:31,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:35:31,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:35:31,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:32,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:35:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:32,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:35:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:32,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-03-31 01:35:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:32,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-03-31 01:35:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:32,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-03-31 01:35:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:32,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-31 01:35:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:32,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-03-31 01:35:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:32,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:35:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:32,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:35:32,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:35:32,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157386664] [2023-03-31 01:35:32,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157386664] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:35:32,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:35:32,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 01:35:32,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619457190] [2023-03-31 01:35:32,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:35:32,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 01:35:32,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:35:32,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 01:35:32,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-03-31 01:35:32,667 INFO L87 Difference]: Start difference. First operand has 341 states, 319 states have (on average 1.7899686520376175) internal successors, (571), 321 states have internal predecessors, (571), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:35:35,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:35:35,368 INFO L93 Difference]: Finished difference Result 496 states and 847 transitions. [2023-03-31 01:35:35,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:35:35,370 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 108 [2023-03-31 01:35:35,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:35:35,381 INFO L225 Difference]: With dead ends: 496 [2023-03-31 01:35:35,381 INFO L226 Difference]: Without dead ends: 360 [2023-03-31 01:35:35,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-03-31 01:35:35,387 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 867 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-03-31 01:35:35,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 48 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-03-31 01:35:35,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-03-31 01:35:35,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 336. [2023-03-31 01:35:35,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 316 states have (on average 1.7848101265822784) internal successors, (564), 317 states have internal predecessors, (564), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-03-31 01:35:35,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 583 transitions. [2023-03-31 01:35:35,493 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 583 transitions. Word has length 108 [2023-03-31 01:35:35,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:35:35,494 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 583 transitions. [2023-03-31 01:35:35,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:35:35,494 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 583 transitions. [2023-03-31 01:35:35,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-03-31 01:35:35,497 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:35:35,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:35:35,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:35:35,498 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:35:35,498 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:35:35,498 INFO L85 PathProgramCache]: Analyzing trace with hash 107508495, now seen corresponding path program 1 times [2023-03-31 01:35:35,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:35:35,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749212930] [2023-03-31 01:35:35,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:35:35,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:35:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:36,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:35:36,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:36,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:35:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:36,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-03-31 01:35:36,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:36,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-03-31 01:35:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:36,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-03-31 01:35:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:36,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-31 01:35:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:36,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-03-31 01:35:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:36,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:35:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:36,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:35:36,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:35:36,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749212930] [2023-03-31 01:35:36,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749212930] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:35:36,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:35:36,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-03-31 01:35:36,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496413141] [2023-03-31 01:35:36,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:35:36,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-03-31 01:35:36,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:35:36,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-03-31 01:35:36,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-03-31 01:35:36,420 INFO L87 Difference]: Start difference. First operand 336 states and 583 transitions. Second operand has 13 states, 12 states have (on average 7.5) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-03-31 01:35:40,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:35:40,851 INFO L93 Difference]: Finished difference Result 494 states and 839 transitions. [2023-03-31 01:35:40,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 01:35:40,851 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.5) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 108 [2023-03-31 01:35:40,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:35:40,854 INFO L225 Difference]: With dead ends: 494 [2023-03-31 01:35:40,854 INFO L226 Difference]: Without dead ends: 360 [2023-03-31 01:35:40,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2023-03-31 01:35:40,860 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 2708 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 4104 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2714 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 4200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 4104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-03-31 01:35:40,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2714 Valid, 132 Invalid, 4200 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [96 Valid, 4104 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-03-31 01:35:40,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-03-31 01:35:40,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 336. [2023-03-31 01:35:40,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 316 states have (on average 1.639240506329114) internal successors, (518), 317 states have internal predecessors, (518), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-03-31 01:35:40,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 537 transitions. [2023-03-31 01:35:40,924 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 537 transitions. Word has length 108 [2023-03-31 01:35:40,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:35:40,925 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 537 transitions. [2023-03-31 01:35:40,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.5) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-03-31 01:35:40,925 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 537 transitions. [2023-03-31 01:35:40,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-03-31 01:35:40,929 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:35:40,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:35:40,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:35:40,930 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:35:40,930 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:35:40,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1848153365, now seen corresponding path program 1 times [2023-03-31 01:35:40,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:35:40,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361692386] [2023-03-31 01:35:40,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:35:40,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:35:41,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:41,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:35:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:41,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:35:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:41,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-03-31 01:35:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:41,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-03-31 01:35:41,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:41,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-03-31 01:35:41,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:42,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-03-31 01:35:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:42,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-03-31 01:35:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:42,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-03-31 01:35:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:42,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:35:42,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:35:42,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361692386] [2023-03-31 01:35:42,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361692386] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:35:42,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:35:42,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-03-31 01:35:42,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188209152] [2023-03-31 01:35:42,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:35:42,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-03-31 01:35:42,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:35:42,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-03-31 01:35:42,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:35:42,117 INFO L87 Difference]: Start difference. First operand 336 states and 537 transitions. Second operand has 16 states, 16 states have (on average 8.4375) internal successors, (135), 11 states have internal predecessors, (135), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:35:57,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:35:57,219 INFO L93 Difference]: Finished difference Result 2145 states and 3519 transitions. [2023-03-31 01:35:57,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2023-03-31 01:35:57,219 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.4375) internal successors, (135), 11 states have internal predecessors, (135), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 153 [2023-03-31 01:35:57,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:35:57,229 INFO L225 Difference]: With dead ends: 2145 [2023-03-31 01:35:57,229 INFO L226 Difference]: Without dead ends: 2017 [2023-03-31 01:35:57,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2965 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=1562, Invalid=7180, Unknown=0, NotChecked=0, Total=8742 [2023-03-31 01:35:57,235 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 8536 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 5111 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8547 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 5406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 5111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:35:57,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8547 Valid, 125 Invalid, 5406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 5111 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-03-31 01:35:57,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2017 states. [2023-03-31 01:35:57,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 966. [2023-03-31 01:35:57,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 878 states have (on average 1.6628701594533029) internal successors, (1460), 887 states have internal predecessors, (1460), 40 states have call successors, (40), 40 states have call predecessors, (40), 47 states have return successors, (67), 39 states have call predecessors, (67), 39 states have call successors, (67) [2023-03-31 01:35:57,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1567 transitions. [2023-03-31 01:35:57,426 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1567 transitions. Word has length 153 [2023-03-31 01:35:57,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:35:57,427 INFO L495 AbstractCegarLoop]: Abstraction has 966 states and 1567 transitions. [2023-03-31 01:35:57,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.4375) internal successors, (135), 11 states have internal predecessors, (135), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:35:57,427 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1567 transitions. [2023-03-31 01:35:57,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-03-31 01:35:57,430 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:35:57,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:35:57,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:35:57,431 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:35:57,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:35:57,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1000183015, now seen corresponding path program 1 times [2023-03-31 01:35:57,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:35:57,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779469194] [2023-03-31 01:35:57,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:35:57,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:35:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:57,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:35:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:57,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:35:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:58,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-03-31 01:35:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:58,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-03-31 01:35:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:58,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-03-31 01:35:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:58,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-03-31 01:35:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:58,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-03-31 01:35:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:58,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-03-31 01:35:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:35:58,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:35:58,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:35:58,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779469194] [2023-03-31 01:35:58,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779469194] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:35:58,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:35:58,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 01:35:58,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742644192] [2023-03-31 01:35:58,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:35:58,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 01:35:58,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:35:58,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 01:35:58,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-03-31 01:35:58,202 INFO L87 Difference]: Start difference. First operand 966 states and 1567 transitions. Second operand has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 6 states have internal predecessors, (136), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:36:04,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:36:04,827 INFO L93 Difference]: Finished difference Result 3197 states and 5216 transitions. [2023-03-31 01:36:04,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-03-31 01:36:04,829 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 6 states have internal predecessors, (136), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 154 [2023-03-31 01:36:04,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:36:04,839 INFO L225 Difference]: With dead ends: 3197 [2023-03-31 01:36:04,839 INFO L226 Difference]: Without dead ends: 2439 [2023-03-31 01:36:04,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2023-03-31 01:36:04,843 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 5091 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 3645 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5101 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 3774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 3645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-03-31 01:36:04,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5101 Valid, 117 Invalid, 3774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 3645 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-03-31 01:36:04,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2023-03-31 01:36:05,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2065. [2023-03-31 01:36:05,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2065 states, 1852 states have (on average 1.6592872570194384) internal successors, (3073), 1878 states have internal predecessors, (3073), 94 states have call successors, (94), 94 states have call predecessors, (94), 118 states have return successors, (180), 93 states have call predecessors, (180), 93 states have call successors, (180) [2023-03-31 01:36:05,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 3347 transitions. [2023-03-31 01:36:05,102 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 3347 transitions. Word has length 154 [2023-03-31 01:36:05,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:36:05,103 INFO L495 AbstractCegarLoop]: Abstraction has 2065 states and 3347 transitions. [2023-03-31 01:36:05,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 6 states have internal predecessors, (136), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:36:05,103 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 3347 transitions. [2023-03-31 01:36:05,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-03-31 01:36:05,106 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:36:05,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:36:05,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:36:05,107 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:36:05,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:36:05,107 INFO L85 PathProgramCache]: Analyzing trace with hash -534590878, now seen corresponding path program 1 times [2023-03-31 01:36:05,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:36:05,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723260713] [2023-03-31 01:36:05,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:36:05,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:36:05,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:05,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:36:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:05,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:36:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:05,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-03-31 01:36:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:05,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-03-31 01:36:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:05,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-03-31 01:36:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:05,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-03-31 01:36:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:05,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-03-31 01:36:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:05,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-03-31 01:36:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:05,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:36:05,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:36:05,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723260713] [2023-03-31 01:36:05,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723260713] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:36:05,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:36:05,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 01:36:05,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929941276] [2023-03-31 01:36:05,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:36:05,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 01:36:05,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:36:05,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 01:36:05,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-03-31 01:36:05,851 INFO L87 Difference]: Start difference. First operand 2065 states and 3347 transitions. Second operand has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 6 states have internal predecessors, (137), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:36:12,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:36:12,651 INFO L93 Difference]: Finished difference Result 13075 states and 21343 transitions. [2023-03-31 01:36:12,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-03-31 01:36:12,651 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 6 states have internal predecessors, (137), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 155 [2023-03-31 01:36:12,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:36:12,695 INFO L225 Difference]: With dead ends: 13075 [2023-03-31 01:36:12,695 INFO L226 Difference]: Without dead ends: 11218 [2023-03-31 01:36:12,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2023-03-31 01:36:12,703 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 5141 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 3614 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5151 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 3744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 3614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-03-31 01:36:12,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5151 Valid, 117 Invalid, 3744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 3614 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-03-31 01:36:12,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11218 states. [2023-03-31 01:36:13,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11218 to 9380. [2023-03-31 01:36:13,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9380 states, 8332 states have (on average 1.6556649063850215) internal successors, (13795), 8473 states have internal predecessors, (13795), 454 states have call successors, (454), 454 states have call predecessors, (454), 593 states have return successors, (969), 453 states have call predecessors, (969), 453 states have call successors, (969) [2023-03-31 01:36:13,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9380 states to 9380 states and 15218 transitions. [2023-03-31 01:36:13,814 INFO L78 Accepts]: Start accepts. Automaton has 9380 states and 15218 transitions. Word has length 155 [2023-03-31 01:36:13,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:36:13,815 INFO L495 AbstractCegarLoop]: Abstraction has 9380 states and 15218 transitions. [2023-03-31 01:36:13,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 6 states have internal predecessors, (137), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:36:13,815 INFO L276 IsEmpty]: Start isEmpty. Operand 9380 states and 15218 transitions. [2023-03-31 01:36:13,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-03-31 01:36:13,818 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:36:13,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:36:13,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 01:36:13,819 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:36:13,819 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:36:13,819 INFO L85 PathProgramCache]: Analyzing trace with hash 962178544, now seen corresponding path program 1 times [2023-03-31 01:36:13,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:36:13,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054369644] [2023-03-31 01:36:13,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:36:13,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:36:13,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:14,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:36:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:14,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:36:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:14,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-03-31 01:36:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:14,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-03-31 01:36:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:14,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-03-31 01:36:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:14,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-03-31 01:36:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:14,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-03-31 01:36:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:14,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-03-31 01:36:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:14,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:36:14,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:36:14,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054369644] [2023-03-31 01:36:14,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054369644] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:36:14,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:36:14,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 01:36:14,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70830773] [2023-03-31 01:36:14,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:36:14,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 01:36:14,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:36:14,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 01:36:14,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-03-31 01:36:14,577 INFO L87 Difference]: Start difference. First operand 9380 states and 15218 transitions. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 6 states have internal predecessors, (138), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8)