/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:33:45,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:33:45,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:33:45,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:33:45,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:33:45,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:33:45,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:33:45,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:33:45,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:33:45,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:33:45,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:33:45,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:33:45,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:33:45,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:33:45,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:33:45,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:33:45,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:33:45,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:33:45,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:33:46,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:33:46,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:33:46,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:33:46,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:33:46,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:33:46,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:33:46,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:33:46,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:33:46,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:33:46,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:33:46,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:33:46,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:33:46,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:33:46,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:33:46,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:33:46,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:33:46,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:33:46,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:33:46,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:33:46,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:33:46,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:33:46,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:33:46,029 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 16:33:46,059 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:33:46,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:33:46,061 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:33:46,061 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:33:46,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:33:46,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:33:46,063 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:33:46,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:33:46,063 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:33:46,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:33:46,064 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:33:46,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:33:46,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:33:46,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:33:46,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:33:46,064 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:33:46,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:33:46,065 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:33:46,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:33:46,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:33:46,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:33:46,065 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:33:46,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:33:46,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:33:46,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:33:46,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:33:46,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:33:46,066 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:33:46,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:33:46,066 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:33:46,066 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:33:46,066 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:33:46,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:33:46,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:33:46,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:33:46,383 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:33:46,383 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:33:46,384 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-12-06 16:33:47,425 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:33:47,725 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:33:47,726 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-12-06 16:33:47,749 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a54f55e/d38df8885df8472385903515b77b23df/FLAG2e346883c [2022-12-06 16:33:47,764 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a54f55e/d38df8885df8472385903515b77b23df [2022-12-06 16:33:47,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:33:47,768 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:33:47,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:33:47,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:33:47,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:33:47,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:33:47" (1/1) ... [2022-12-06 16:33:47,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7883e472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:47, skipping insertion in model container [2022-12-06 16:33:47,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:33:47" (1/1) ... [2022-12-06 16:33:47,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:33:47,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:33:47,989 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2022-12-06 16:33:48,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,166 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,166 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,196 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,203 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,204 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,205 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,205 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,224 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:33:48,259 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:33:48,269 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2022-12-06 16:33:48,298 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,298 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,299 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,303 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,307 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,307 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,334 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,335 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,336 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,338 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,338 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,339 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,340 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,340 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:48,350 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:48,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:33:48,388 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:33:48,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:48 WrapperNode [2022-12-06 16:33:48,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:33:48,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:33:48,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:33:48,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:33:48,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:48" (1/1) ... [2022-12-06 16:33:48,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:48" (1/1) ... [2022-12-06 16:33:48,448 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 150 [2022-12-06 16:33:48,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:33:48,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:33:48,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:33:48,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:33:48,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:48" (1/1) ... [2022-12-06 16:33:48,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:48" (1/1) ... [2022-12-06 16:33:48,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:48" (1/1) ... [2022-12-06 16:33:48,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:48" (1/1) ... [2022-12-06 16:33:48,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:48" (1/1) ... [2022-12-06 16:33:48,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:48" (1/1) ... [2022-12-06 16:33:48,483 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:48" (1/1) ... [2022-12-06 16:33:48,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:48" (1/1) ... [2022-12-06 16:33:48,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:33:48,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:33:48,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:33:48,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:33:48,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:48" (1/1) ... [2022-12-06 16:33:48,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:33:48,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:33:48,537 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) [2022-12-06 16:33:48,555 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 [2022-12-06 16:33:48,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:33:48,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 16:33:48,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:33:48,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:33:48,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:33:48,581 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 16:33:48,582 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 16:33:48,582 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 16:33:48,582 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 16:33:48,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:33:48,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 16:33:48,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:33:48,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:33:48,583 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:33:48,730 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:33:48,732 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:33:49,082 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:33:49,293 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:33:49,294 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:33:49,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:33:49 BoogieIcfgContainer [2022-12-06 16:33:49,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:33:49,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:33:49,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:33:49,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:33:49,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:33:47" (1/3) ... [2022-12-06 16:33:49,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@269754d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:33:49, skipping insertion in model container [2022-12-06 16:33:49,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:48" (2/3) ... [2022-12-06 16:33:49,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@269754d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:33:49, skipping insertion in model container [2022-12-06 16:33:49,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:33:49" (3/3) ... [2022-12-06 16:33:49,304 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-12-06 16:33:49,319 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:33:49,320 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-06 16:33:49,320 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:33:49,365 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 16:33:49,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 92 transitions, 194 flow [2022-12-06 16:33:49,453 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2022-12-06 16:33:49,454 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:33:49,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-12-06 16:33:49,461 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 92 transitions, 194 flow [2022-12-06 16:33:49,465 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 90 transitions, 186 flow [2022-12-06 16:33:49,479 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:33:49,486 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=false, 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;@41a93149, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:33:49,487 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-06 16:33:49,509 INFO L130 PetriNetUnfolder]: 0/56 cut-off events. [2022-12-06 16:33:49,509 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:33:49,509 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:33:49,510 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-06 16:33:49,511 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:33:49,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:33:49,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1150441605, now seen corresponding path program 1 times [2022-12-06 16:33:49,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:33:49,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361845675] [2022-12-06 16:33:49,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:33:49,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:33:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:33:50,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:33:50,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:33:50,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361845675] [2022-12-06 16:33:50,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361845675] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:33:50,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:33:50,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 16:33:50,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960336612] [2022-12-06 16:33:50,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:33:50,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 16:33:50,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:33:50,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 16:33:50,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 16:33:50,136 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 92 [2022-12-06 16:33:50,140 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 90 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:33:50,142 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:33:50,142 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 92 [2022-12-06 16:33:50,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:33:50,336 INFO L130 PetriNetUnfolder]: 60/288 cut-off events. [2022-12-06 16:33:50,336 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-06 16:33:50,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 288 events. 60/288 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1265 event pairs, 9 based on Foata normal form. 24/295 useless extension candidates. Maximal degree in co-relation 369. Up to 88 conditions per place. [2022-12-06 16:33:50,341 INFO L137 encePairwiseOnDemand]: 87/92 looper letters, 14 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2022-12-06 16:33:50,341 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 91 transitions, 220 flow [2022-12-06 16:33:50,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 16:33:50,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 16:33:50,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2022-12-06 16:33:50,355 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9130434782608695 [2022-12-06 16:33:50,359 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 0 predicate places. [2022-12-06 16:33:50,360 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 91 transitions, 220 flow [2022-12-06 16:33:50,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:33:50,360 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:33:50,361 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-06 16:33:50,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:33:50,361 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:33:50,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:33:50,364 INFO L85 PathProgramCache]: Analyzing trace with hash 2031287058, now seen corresponding path program 1 times [2022-12-06 16:33:50,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:33:50,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138480812] [2022-12-06 16:33:50,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:33:50,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:33:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:33:51,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:33:51,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:33:51,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138480812] [2022-12-06 16:33:51,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138480812] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:33:51,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:33:51,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:33:51,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796439612] [2022-12-06 16:33:51,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:33:51,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:33:51,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:33:51,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:33:51,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:33:51,200 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 92 [2022-12-06 16:33:51,201 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 91 transitions, 220 flow. Second operand has 7 states, 7 states have (on average 62.714285714285715) internal successors, (439), 7 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:33:51,201 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:33:51,201 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 92 [2022-12-06 16:33:51,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:33:51,711 INFO L130 PetriNetUnfolder]: 377/1014 cut-off events. [2022-12-06 16:33:51,712 INFO L131 PetriNetUnfolder]: For 207/450 co-relation queries the response was YES. [2022-12-06 16:33:51,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2073 conditions, 1014 events. 377/1014 cut-off events. For 207/450 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 6104 event pairs, 70 based on Foata normal form. 1/979 useless extension candidates. Maximal degree in co-relation 2014. Up to 344 conditions per place. [2022-12-06 16:33:51,723 INFO L137 encePairwiseOnDemand]: 85/92 looper letters, 33 selfloop transitions, 3 changer transitions 63/150 dead transitions. [2022-12-06 16:33:51,723 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 150 transitions, 604 flow [2022-12-06 16:33:51,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 16:33:51,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 16:33:51,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 680 transitions. [2022-12-06 16:33:51,730 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7391304347826086 [2022-12-06 16:33:51,730 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 9 predicate places. [2022-12-06 16:33:51,730 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 150 transitions, 604 flow [2022-12-06 16:33:51,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 62.714285714285715) internal successors, (439), 7 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:33:51,731 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:33:51,731 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-06 16:33:51,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:33:51,732 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:33:51,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:33:51,732 INFO L85 PathProgramCache]: Analyzing trace with hash 2001992373, now seen corresponding path program 1 times [2022-12-06 16:33:51,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:33:51,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726468945] [2022-12-06 16:33:51,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:33:51,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:33:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:33:52,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:33:52,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:33:52,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726468945] [2022-12-06 16:33:52,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726468945] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:33:52,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:33:52,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:33:52,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020122410] [2022-12-06 16:33:52,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:33:52,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:33:52,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:33:52,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:33:52,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:33:52,344 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 92 [2022-12-06 16:33:52,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 150 transitions, 604 flow. Second operand has 7 states, 7 states have (on average 63.0) internal successors, (441), 7 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:33:52,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:33:52,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 92 [2022-12-06 16:33:52,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:33:52,866 INFO L130 PetriNetUnfolder]: 446/1270 cut-off events. [2022-12-06 16:33:52,866 INFO L131 PetriNetUnfolder]: For 294/873 co-relation queries the response was YES. [2022-12-06 16:33:52,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3346 conditions, 1270 events. 446/1270 cut-off events. For 294/873 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 8637 event pairs, 32 based on Foata normal form. 0/1240 useless extension candidates. Maximal degree in co-relation 3274. Up to 417 conditions per place. [2022-12-06 16:33:52,873 INFO L137 encePairwiseOnDemand]: 86/92 looper letters, 40 selfloop transitions, 4 changer transitions 147/242 dead transitions. [2022-12-06 16:33:52,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 242 transitions, 1459 flow [2022-12-06 16:33:52,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 16:33:52,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 16:33:52,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 621 transitions. [2022-12-06 16:33:52,876 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.75 [2022-12-06 16:33:52,879 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 17 predicate places. [2022-12-06 16:33:52,879 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 242 transitions, 1459 flow [2022-12-06 16:33:52,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.0) internal successors, (441), 7 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:33:52,879 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:33:52,880 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-06 16:33:52,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:33:52,880 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:33:52,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:33:52,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1480251443, now seen corresponding path program 1 times [2022-12-06 16:33:52,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:33:52,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178206852] [2022-12-06 16:33:52,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:33:52,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:33:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:33:54,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:33:54,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:33:54,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178206852] [2022-12-06 16:33:54,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178206852] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:33:54,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:33:54,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-06 16:33:54,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043582497] [2022-12-06 16:33:54,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:33:54,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-06 16:33:54,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:33:54,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-06 16:33:54,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-12-06 16:33:54,269 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 92 [2022-12-06 16:33:54,270 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 242 transitions, 1459 flow. Second operand has 15 states, 15 states have (on average 64.4) internal successors, (966), 15 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:33:54,270 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:33:54,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 92 [2022-12-06 16:33:54,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:33:55,597 INFO L130 PetriNetUnfolder]: 1036/3100 cut-off events. [2022-12-06 16:33:55,598 INFO L131 PetriNetUnfolder]: For 1171/5400 co-relation queries the response was YES. [2022-12-06 16:33:55,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9460 conditions, 3100 events. 1036/3100 cut-off events. For 1171/5400 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 27859 event pairs, 13 based on Foata normal form. 16/3091 useless extension candidates. Maximal degree in co-relation 9377. Up to 974 conditions per place. [2022-12-06 16:33:55,612 INFO L137 encePairwiseOnDemand]: 76/92 looper letters, 35 selfloop transitions, 33 changer transitions 514/637 dead transitions. [2022-12-06 16:33:55,613 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 637 transitions, 5450 flow [2022-12-06 16:33:55,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 16:33:55,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 16:33:55,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1518 transitions. [2022-12-06 16:33:55,623 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.75 [2022-12-06 16:33:55,624 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 38 predicate places. [2022-12-06 16:33:55,624 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 637 transitions, 5450 flow [2022-12-06 16:33:55,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 64.4) internal successors, (966), 15 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:33:55,625 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:33:55,625 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-06 16:33:55,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:33:55,626 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:33:55,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:33:55,626 INFO L85 PathProgramCache]: Analyzing trace with hash 384369203, now seen corresponding path program 2 times [2022-12-06 16:33:55,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:33:55,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174199163] [2022-12-06 16:33:55,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:33:55,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:33:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:33:57,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:33:57,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:33:57,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174199163] [2022-12-06 16:33:57,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174199163] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:33:57,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:33:57,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-06 16:33:57,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287534596] [2022-12-06 16:33:57,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:33:57,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-06 16:33:57,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:33:57,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-06 16:33:57,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-12-06 16:33:57,039 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 92 [2022-12-06 16:33:57,040 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 637 transitions, 5450 flow. Second operand has 15 states, 15 states have (on average 64.4) internal successors, (966), 15 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:33:57,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:33:57,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 92 [2022-12-06 16:33:57,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:33:58,545 INFO L130 PetriNetUnfolder]: 1749/5421 cut-off events. [2022-12-06 16:33:58,546 INFO L131 PetriNetUnfolder]: For 2514/8356 co-relation queries the response was YES. [2022-12-06 16:33:58,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19046 conditions, 5421 events. 1749/5421 cut-off events. For 2514/8356 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 56063 event pairs, 20 based on Foata normal form. 46/5441 useless extension candidates. Maximal degree in co-relation 18952. Up to 1670 conditions per place. [2022-12-06 16:33:58,571 INFO L137 encePairwiseOnDemand]: 79/92 looper letters, 76 selfloop transitions, 19 changer transitions 994/1144 dead transitions. [2022-12-06 16:33:58,571 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 1144 transitions, 12274 flow [2022-12-06 16:33:58,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-06 16:33:58,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-06 16:33:58,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1240 transitions. [2022-12-06 16:33:58,575 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.748792270531401 [2022-12-06 16:33:58,577 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 55 predicate places. [2022-12-06 16:33:58,577 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 1144 transitions, 12274 flow [2022-12-06 16:33:58,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 64.4) internal successors, (966), 15 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:33:58,578 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:33:58,578 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-06 16:33:58,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 16:33:58,579 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:33:58,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:33:58,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1810490547, now seen corresponding path program 3 times [2022-12-06 16:33:58,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:33:58,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974237255] [2022-12-06 16:33:58,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:33:58,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:33:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:33:59,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:33:59,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:33:59,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974237255] [2022-12-06 16:33:59,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974237255] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:33:59,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:33:59,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 16:33:59,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944331790] [2022-12-06 16:33:59,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:33:59,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 16:33:59,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:33:59,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 16:33:59,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-12-06 16:33:59,875 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 92 [2022-12-06 16:33:59,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 1144 transitions, 12274 flow. Second operand has 14 states, 14 states have (on average 65.42857142857143) internal successors, (916), 14 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:33:59,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:33:59,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 92 [2022-12-06 16:33:59,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:01,890 INFO L130 PetriNetUnfolder]: 2365/7571 cut-off events. [2022-12-06 16:34:01,890 INFO L131 PetriNetUnfolder]: For 4704/11827 co-relation queries the response was YES. [2022-12-06 16:34:01,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29942 conditions, 7571 events. 2365/7571 cut-off events. For 4704/11827 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 84690 event pairs, 25 based on Foata normal form. 64/7608 useless extension candidates. Maximal degree in co-relation 29838. Up to 2259 conditions per place. [2022-12-06 16:34:01,925 INFO L137 encePairwiseOnDemand]: 80/92 looper letters, 92 selfloop transitions, 21 changer transitions 1527/1696 dead transitions. [2022-12-06 16:34:01,925 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 1696 transitions, 21653 flow [2022-12-06 16:34:01,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 16:34:01,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 16:34:01,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1392 transitions. [2022-12-06 16:34:01,932 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7565217391304347 [2022-12-06 16:34:01,934 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 74 predicate places. [2022-12-06 16:34:01,935 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 1696 transitions, 21653 flow [2022-12-06 16:34:01,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 65.42857142857143) internal successors, (916), 14 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:01,936 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:01,936 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-06 16:34:01,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 16:34:01,937 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:01,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:01,938 INFO L85 PathProgramCache]: Analyzing trace with hash 2144690031, now seen corresponding path program 4 times [2022-12-06 16:34:01,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:01,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983506105] [2022-12-06 16:34:01,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:01,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:03,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:34:03,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:03,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983506105] [2022-12-06 16:34:03,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983506105] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:03,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:03,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-06 16:34:03,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005404659] [2022-12-06 16:34:03,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:03,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-06 16:34:03,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:03,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-06 16:34:03,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-12-06 16:34:03,328 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 92 [2022-12-06 16:34:03,329 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 1696 transitions, 21653 flow. Second operand has 13 states, 13 states have (on average 64.61538461538461) internal successors, (840), 13 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:03,329 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:03,329 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 92 [2022-12-06 16:34:03,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:05,562 INFO L130 PetriNetUnfolder]: 2735/8923 cut-off events. [2022-12-06 16:34:05,563 INFO L131 PetriNetUnfolder]: For 7748/20950 co-relation queries the response was YES. [2022-12-06 16:34:05,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39717 conditions, 8923 events. 2735/8923 cut-off events. For 7748/20950 co-relation queries the response was YES. Maximal size of possible extension queue 625. Compared 103777 event pairs, 18 based on Foata normal form. 68/8963 useless extension candidates. Maximal degree in co-relation 39602. Up to 3435 conditions per place. [2022-12-06 16:34:05,599 INFO L137 encePairwiseOnDemand]: 81/92 looper letters, 108 selfloop transitions, 16 changer transitions 1746/1925 dead transitions. [2022-12-06 16:34:05,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 1925 transitions, 28407 flow [2022-12-06 16:34:05,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:34:05,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:34:05,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 902 transitions. [2022-12-06 16:34:05,602 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.754180602006689 [2022-12-06 16:34:05,603 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 86 predicate places. [2022-12-06 16:34:05,603 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 1925 transitions, 28407 flow [2022-12-06 16:34:05,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 64.61538461538461) internal successors, (840), 13 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:05,604 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:05,604 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-06 16:34:05,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 16:34:05,604 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:05,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:05,605 INFO L85 PathProgramCache]: Analyzing trace with hash 538799560, now seen corresponding path program 1 times [2022-12-06 16:34:05,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:05,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671454946] [2022-12-06 16:34:05,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:05,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:06,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:34:06,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:06,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671454946] [2022-12-06 16:34:06,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671454946] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:06,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:06,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 16:34:06,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82920055] [2022-12-06 16:34:06,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:06,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 16:34:06,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:06,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 16:34:06,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-06 16:34:06,452 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 92 [2022-12-06 16:34:06,452 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 1925 transitions, 28407 flow. Second operand has 10 states, 10 states have (on average 60.7) internal successors, (607), 10 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:06,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:06,453 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 92 [2022-12-06 16:34:06,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:09,716 INFO L130 PetriNetUnfolder]: 3923/13178 cut-off events. [2022-12-06 16:34:09,716 INFO L131 PetriNetUnfolder]: For 8912/44308 co-relation queries the response was YES. [2022-12-06 16:34:09,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66518 conditions, 13178 events. 3923/13178 cut-off events. For 8912/44308 co-relation queries the response was YES. Maximal size of possible extension queue 944. Compared 166261 event pairs, 12 based on Foata normal form. 94/13256 useless extension candidates. Maximal degree in co-relation 66388. Up to 5024 conditions per place. [2022-12-06 16:34:09,757 INFO L137 encePairwiseOnDemand]: 79/92 looper letters, 99 selfloop transitions, 37 changer transitions 2773/2958 dead transitions. [2022-12-06 16:34:09,758 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 2958 transitions, 49715 flow [2022-12-06 16:34:09,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-06 16:34:09,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-06 16:34:09,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 926 transitions. [2022-12-06 16:34:09,763 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.718944099378882 [2022-12-06 16:34:09,764 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 99 predicate places. [2022-12-06 16:34:09,764 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 2958 transitions, 49715 flow [2022-12-06 16:34:09,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.7) internal successors, (607), 10 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:09,764 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:09,764 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-06 16:34:09,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 16:34:09,765 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:09,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:09,765 INFO L85 PathProgramCache]: Analyzing trace with hash -531423568, now seen corresponding path program 2 times [2022-12-06 16:34:09,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:09,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372354016] [2022-12-06 16:34:09,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:09,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:10,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:34:10,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:10,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372354016] [2022-12-06 16:34:10,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372354016] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:10,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:10,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-06 16:34:10,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486860532] [2022-12-06 16:34:10,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:10,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-06 16:34:10,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:10,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-06 16:34:10,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-12-06 16:34:10,876 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 92 [2022-12-06 16:34:10,878 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 2958 transitions, 49715 flow. Second operand has 17 states, 17 states have (on average 61.470588235294116) internal successors, (1045), 17 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:10,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:10,878 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 92 [2022-12-06 16:34:10,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:15,453 INFO L130 PetriNetUnfolder]: 4409/15191 cut-off events. [2022-12-06 16:34:15,453 INFO L131 PetriNetUnfolder]: For 13362/54283 co-relation queries the response was YES. [2022-12-06 16:34:15,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83832 conditions, 15191 events. 4409/15191 cut-off events. For 13362/54283 co-relation queries the response was YES. Maximal size of possible extension queue 1103. Compared 197740 event pairs, 18 based on Foata normal form. 108/15269 useless extension candidates. Maximal degree in co-relation 83688. Up to 6005 conditions per place. [2022-12-06 16:34:15,506 INFO L137 encePairwiseOnDemand]: 75/92 looper letters, 100 selfloop transitions, 29 changer transitions 3167/3350 dead transitions. [2022-12-06 16:34:15,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 3350 transitions, 62993 flow [2022-12-06 16:34:15,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-06 16:34:15,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-06 16:34:15,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 926 transitions. [2022-12-06 16:34:15,508 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.718944099378882 [2022-12-06 16:34:15,509 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 112 predicate places. [2022-12-06 16:34:15,509 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 3350 transitions, 62993 flow [2022-12-06 16:34:15,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 61.470588235294116) internal successors, (1045), 17 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:15,510 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:15,510 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-06 16:34:15,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 16:34:15,510 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:15,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:15,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1718500512, now seen corresponding path program 3 times [2022-12-06 16:34:15,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:15,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613618739] [2022-12-06 16:34:15,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:15,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:16,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:34:16,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:16,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613618739] [2022-12-06 16:34:16,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613618739] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:16,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:16,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 16:34:16,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845225126] [2022-12-06 16:34:16,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:16,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 16:34:16,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:16,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 16:34:16,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-06 16:34:16,386 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 92 [2022-12-06 16:34:16,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 3350 transitions, 62993 flow. Second operand has 10 states, 10 states have (on average 65.2) internal successors, (652), 10 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:16,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:16,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 92 [2022-12-06 16:34:16,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:22,874 INFO L130 PetriNetUnfolder]: 5293/18757 cut-off events. [2022-12-06 16:34:22,874 INFO L131 PetriNetUnfolder]: For 18879/77808 co-relation queries the response was YES. [2022-12-06 16:34:22,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111563 conditions, 18757 events. 5293/18757 cut-off events. For 18879/77808 co-relation queries the response was YES. Maximal size of possible extension queue 1450. Compared 256508 event pairs, 14 based on Foata normal form. 101/18830 useless extension candidates. Maximal degree in co-relation 111408. Up to 7091 conditions per place. [2022-12-06 16:34:22,931 INFO L137 encePairwiseOnDemand]: 79/92 looper letters, 105 selfloop transitions, 35 changer transitions 4442/4639 dead transitions. [2022-12-06 16:34:22,931 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 4639 transitions, 96731 flow [2022-12-06 16:34:22,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 16:34:22,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 16:34:22,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 850 transitions. [2022-12-06 16:34:22,937 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.769927536231884 [2022-12-06 16:34:22,955 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 123 predicate places. [2022-12-06 16:34:22,955 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 4639 transitions, 96731 flow [2022-12-06 16:34:22,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.2) internal successors, (652), 10 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:22,955 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:22,955 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-06 16:34:22,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-06 16:34:22,956 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:22,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:22,956 INFO L85 PathProgramCache]: Analyzing trace with hash -862921463, now seen corresponding path program 1 times [2022-12-06 16:34:22,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:22,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135443671] [2022-12-06 16:34:22,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:22,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:24,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:34:24,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:24,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135443671] [2022-12-06 16:34:24,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135443671] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:24,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:24,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-06 16:34:24,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450565677] [2022-12-06 16:34:24,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:24,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-06 16:34:24,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:24,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-06 16:34:24,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-12-06 16:34:24,383 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 92 [2022-12-06 16:34:24,383 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 4639 transitions, 96731 flow. Second operand has 15 states, 15 states have (on average 66.33333333333333) internal successors, (995), 15 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:24,384 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:24,384 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 92 [2022-12-06 16:34:24,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:33,560 INFO L130 PetriNetUnfolder]: 5290/18869 cut-off events. [2022-12-06 16:34:33,561 INFO L131 PetriNetUnfolder]: For 21629/96896 co-relation queries the response was YES. [2022-12-06 16:34:33,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121164 conditions, 18869 events. 5290/18869 cut-off events. For 21629/96896 co-relation queries the response was YES. Maximal size of possible extension queue 1472. Compared 259541 event pairs, 12 based on Foata normal form. 208/19063 useless extension candidates. Maximal degree in co-relation 121000. Up to 7091 conditions per place. [2022-12-06 16:34:33,608 INFO L137 encePairwiseOnDemand]: 79/92 looper letters, 111 selfloop transitions, 23 changer transitions 4484/4677 dead transitions. [2022-12-06 16:34:33,609 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 4677 transitions, 106691 flow [2022-12-06 16:34:33,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-06 16:34:33,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-06 16:34:33,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1280 transitions. [2022-12-06 16:34:33,611 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7729468599033816 [2022-12-06 16:34:33,611 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 140 predicate places. [2022-12-06 16:34:33,611 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 4677 transitions, 106691 flow [2022-12-06 16:34:33,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 66.33333333333333) internal successors, (995), 15 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:33,612 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:33,612 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-06 16:34:33,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-06 16:34:33,612 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:33,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:33,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1948903372, now seen corresponding path program 4 times [2022-12-06 16:34:33,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:33,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269533855] [2022-12-06 16:34:33,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:33,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:33,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:34,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:34:34,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:34,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269533855] [2022-12-06 16:34:34,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269533855] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:34,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:34,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 16:34:34,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509195153] [2022-12-06 16:34:34,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:34,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 16:34:34,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:34,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 16:34:34,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-12-06 16:34:34,666 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 92 [2022-12-06 16:34:34,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 4677 transitions, 106691 flow. Second operand has 14 states, 14 states have (on average 61.785714285714285) internal successors, (865), 14 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:34,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:34,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 92 [2022-12-06 16:34:34,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:45,192 INFO L130 PetriNetUnfolder]: 5638/20374 cut-off events. [2022-12-06 16:34:45,192 INFO L131 PetriNetUnfolder]: For 30881/135621 co-relation queries the response was YES. [2022-12-06 16:34:45,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140724 conditions, 20374 events. 5638/20374 cut-off events. For 30881/135621 co-relation queries the response was YES. Maximal size of possible extension queue 1594. Compared 284279 event pairs, 13 based on Foata normal form. 217/20569 useless extension candidates. Maximal degree in co-relation 140546. Up to 8731 conditions per place. [2022-12-06 16:34:45,463 INFO L137 encePairwiseOnDemand]: 76/92 looper letters, 121 selfloop transitions, 24 changer transitions 4971/5170 dead transitions. [2022-12-06 16:34:45,464 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 5170 transitions, 128241 flow [2022-12-06 16:34:45,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-06 16:34:45,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-12-06 16:34:45,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 1842 transitions. [2022-12-06 16:34:45,481 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7150621118012422 [2022-12-06 16:34:45,481 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 167 predicate places. [2022-12-06 16:34:45,481 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 5170 transitions, 128241 flow [2022-12-06 16:34:45,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 61.785714285714285) internal successors, (865), 14 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:45,482 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:45,482 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-06 16:34:45,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-06 16:34:45,482 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:45,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:45,483 INFO L85 PathProgramCache]: Analyzing trace with hash 603347774, now seen corresponding path program 5 times [2022-12-06 16:34:45,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:45,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925572729] [2022-12-06 16:34:45,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:45,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:46,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:34:46,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:46,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925572729] [2022-12-06 16:34:46,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925572729] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:46,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:46,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-06 16:34:46,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677145183] [2022-12-06 16:34:46,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:46,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-06 16:34:46,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:46,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-06 16:34:46,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-12-06 16:34:46,245 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 92 [2022-12-06 16:34:46,246 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 5170 transitions, 128241 flow. Second operand has 15 states, 15 states have (on average 61.666666666666664) internal successors, (925), 15 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:46,246 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:46,246 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 92 [2022-12-06 16:34:46,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:58,453 INFO L130 PetriNetUnfolder]: 5773/21349 cut-off events. [2022-12-06 16:34:58,454 INFO L131 PetriNetUnfolder]: For 28877/115764 co-relation queries the response was YES. [2022-12-06 16:34:58,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156175 conditions, 21349 events. 5773/21349 cut-off events. For 28877/115764 co-relation queries the response was YES. Maximal size of possible extension queue 1725. Compared 303698 event pairs, 7 based on Foata normal form. 252/21588 useless extension candidates. Maximal degree in co-relation 155983. Up to 9061 conditions per place. [2022-12-06 16:34:58,529 INFO L137 encePairwiseOnDemand]: 78/92 looper letters, 105 selfloop transitions, 14 changer transitions 5164/5337 dead transitions. [2022-12-06 16:34:58,529 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 5337 transitions, 142947 flow [2022-12-06 16:34:58,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:34:58,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:34:58,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 864 transitions. [2022-12-06 16:34:58,531 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7224080267558528 [2022-12-06 16:34:58,531 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 179 predicate places. [2022-12-06 16:34:58,531 INFO L495 AbstractCegarLoop]: Abstraction has has 274 places, 5337 transitions, 142947 flow [2022-12-06 16:34:58,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 61.666666666666664) internal successors, (925), 15 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:58,532 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:58,532 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-06 16:34:58,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-06 16:34:58,532 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:58,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:58,532 INFO L85 PathProgramCache]: Analyzing trace with hash 678633176, now seen corresponding path program 6 times [2022-12-06 16:34:58,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:58,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617214859] [2022-12-06 16:34:58,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:58,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:58,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:34:58,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:58,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617214859] [2022-12-06 16:34:58,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617214859] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:58,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:58,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 16:34:58,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400092234] [2022-12-06 16:34:58,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:58,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 16:34:58,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:58,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 16:34:58,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-06 16:34:58,925 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 92 [2022-12-06 16:34:58,925 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 5337 transitions, 142947 flow. Second operand has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:58,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:58,925 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 92 [2022-12-06 16:34:58,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:35:13,694 INFO L130 PetriNetUnfolder]: 6383/23640 cut-off events. [2022-12-06 16:35:13,695 INFO L131 PetriNetUnfolder]: For 46485/168707 co-relation queries the response was YES. [2022-12-06 16:35:13,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185062 conditions, 23640 events. 6383/23640 cut-off events. For 46485/168707 co-relation queries the response was YES. Maximal size of possible extension queue 1901. Compared 340979 event pairs, 12 based on Foata normal form. 157/23776 useless extension candidates. Maximal degree in co-relation 184862. Up to 10240 conditions per place. [2022-12-06 16:35:13,768 INFO L137 encePairwiseOnDemand]: 84/92 looper letters, 59 selfloop transitions, 22 changer transitions 5806/5953 dead transitions. [2022-12-06 16:35:13,769 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 5953 transitions, 171193 flow [2022-12-06 16:35:13,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 16:35:13,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 16:35:13,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 594 transitions. [2022-12-06 16:35:13,770 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8070652173913043 [2022-12-06 16:35:13,770 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 186 predicate places. [2022-12-06 16:35:13,770 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 5953 transitions, 171193 flow [2022-12-06 16:35:13,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:35:13,771 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:35:13,771 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-06 16:35:13,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-06 16:35:13,771 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:35:13,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:35:13,771 INFO L85 PathProgramCache]: Analyzing trace with hash 79721726, now seen corresponding path program 7 times [2022-12-06 16:35:13,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:35:13,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701473208] [2022-12-06 16:35:13,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:35:13,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:35:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:35:14,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:35:14,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:35:14,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701473208] [2022-12-06 16:35:14,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701473208] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:35:14,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:35:14,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-06 16:35:14,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874010069] [2022-12-06 16:35:14,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:35:14,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-06 16:35:14,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:35:14,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-06 16:35:14,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-06 16:35:14,326 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 92 [2022-12-06 16:35:14,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 5953 transitions, 171193 flow. Second operand has 12 states, 12 states have (on average 66.66666666666667) internal successors, (800), 12 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:35:14,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:35:14,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 92 [2022-12-06 16:35:14,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:35:32,047 INFO L130 PetriNetUnfolder]: 6448/24062 cut-off events. [2022-12-06 16:35:32,047 INFO L131 PetriNetUnfolder]: For 51279/102799 co-relation queries the response was YES. [2022-12-06 16:35:32,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199470 conditions, 24062 events. 6448/24062 cut-off events. For 51279/102799 co-relation queries the response was YES. Maximal size of possible extension queue 1942. Compared 348783 event pairs, 13 based on Foata normal form. 206/24246 useless extension candidates. Maximal degree in co-relation 199260. Up to 10406 conditions per place. [2022-12-06 16:35:32,136 INFO L137 encePairwiseOnDemand]: 83/92 looper letters, 0 selfloop transitions, 0 changer transitions 6138/6138 dead transitions. [2022-12-06 16:35:32,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 6138 transitions, 188547 flow [2022-12-06 16:35:32,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 16:35:32,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 16:35:32,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 707 transitions. [2022-12-06 16:35:32,138 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7684782608695652 [2022-12-06 16:35:32,138 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 193 predicate places. [2022-12-06 16:35:32,138 INFO L495 AbstractCegarLoop]: Abstraction has has 288 places, 6138 transitions, 188547 flow [2022-12-06 16:35:32,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 66.66666666666667) internal successors, (800), 12 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:35:32,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-06 16:35:32,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-06 16:35:32,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-06 16:35:32,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-06 16:35:32,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-06 16:35:32,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-06 16:35:32,142 INFO L458 BasicCegarLoop]: Path program histogram: [7, 4, 1, 1, 1, 1] [2022-12-06 16:35:32,146 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:35:32,146 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:35:32,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:35:32 BasicIcfg [2022-12-06 16:35:32,150 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:35:32,151 INFO L158 Benchmark]: Toolchain (without parser) took 104383.49ms. Allocated memory was 180.4MB in the beginning and 3.3GB in the end (delta: 3.1GB). Free memory was 155.3MB in the beginning and 971.3MB in the end (delta: -816.0MB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2022-12-06 16:35:32,151 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 157.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:35:32,151 INFO L158 Benchmark]: CACSL2BoogieTranslator took 619.02ms. Allocated memory is still 180.4MB. Free memory was 155.0MB in the beginning and 126.7MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-12-06 16:35:32,152 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.63ms. Allocated memory is still 180.4MB. Free memory was 126.7MB in the beginning and 124.0MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-06 16:35:32,152 INFO L158 Benchmark]: Boogie Preprocessor took 38.75ms. Allocated memory is still 180.4MB. Free memory was 124.0MB in the beginning and 121.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:35:32,152 INFO L158 Benchmark]: RCFGBuilder took 807.56ms. Allocated memory was 180.4MB in the beginning and 228.6MB in the end (delta: 48.2MB). Free memory was 121.4MB in the beginning and 194.8MB in the end (delta: -73.4MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2022-12-06 16:35:32,152 INFO L158 Benchmark]: TraceAbstraction took 102852.20ms. Allocated memory was 228.6MB in the beginning and 3.3GB in the end (delta: 3.1GB). Free memory was 193.7MB in the beginning and 971.3MB in the end (delta: -777.6MB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2022-12-06 16:35:32,154 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 157.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 619.02ms. Allocated memory is still 180.4MB. Free memory was 155.0MB in the beginning and 126.7MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.63ms. Allocated memory is still 180.4MB. Free memory was 126.7MB in the beginning and 124.0MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.75ms. Allocated memory is still 180.4MB. Free memory was 124.0MB in the beginning and 121.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 807.56ms. Allocated memory was 180.4MB in the beginning and 228.6MB in the end (delta: 48.2MB). Free memory was 121.4MB in the beginning and 194.8MB in the end (delta: -73.4MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. * TraceAbstraction took 102852.20ms. Allocated memory was 228.6MB in the beginning and 3.3GB in the end (delta: 3.1GB). Free memory was 193.7MB in the beginning and 971.3MB in the end (delta: -777.6MB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 113 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 102.7s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 88.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1505 SdHoareTripleChecker+Valid, 4.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1505 mSDsluCounter, 1772 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1474 mSDsCounter, 376 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4371 IncrementalHoareTripleChecker+Invalid, 4747 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 376 mSolverCounterUnsat, 298 mSDtfsCounter, 4371 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 292 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 261 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1039 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=188547occurred in iteration=15, InterpolantAutomatonStates: 212, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 13.6s InterpolantComputationTime, 995 NumberOfCodeBlocks, 995 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 980 ConstructedInterpolants, 0 QuantifiedInterpolants, 9319 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 16:35:32,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...