/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/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:36:58,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:36:58,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:36:58,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:36:58,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:36:58,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:36:58,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:36:58,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:36:58,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:36:58,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:36:58,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:36:58,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:36:58,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:36:58,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:36:58,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:36:58,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:36:58,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:36:58,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:36:58,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:36:58,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:36:58,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:36:58,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:36:58,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:36:58,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:36:58,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:36:58,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:36:58,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:36:58,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:36:58,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:36:58,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:36:58,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:36:58,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:36:58,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:36:58,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:36:58,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:36:58,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:36:58,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:36:58,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:36:58,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:36:58,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:36:58,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:36:58,255 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 16:36:58,284 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:36:58,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:36:58,285 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:36:58,286 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:36:58,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:36:58,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:36:58,287 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:36:58,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:36:58,287 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:36:58,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:36:58,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:36:58,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:36:58,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:36:58,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:36:58,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:36:58,288 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:36:58,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:36:58,288 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:36:58,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:36:58,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:36:58,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:36:58,289 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:36:58,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:36:58,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:36:58,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:36:58,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:36:58,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:36:58,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:36:58,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:36:58,290 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:36:58,290 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:36:58,290 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:36:58,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:36:58,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:36:58,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:36:58,564 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:36:58,564 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:36:58,565 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:36:59,521 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:36:59,709 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:36:59,710 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:36:59,717 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d285f74e/7322065863214b9aaea3545bffeea6dd/FLAG04c439a27 [2022-12-06 16:36:59,728 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d285f74e/7322065863214b9aaea3545bffeea6dd [2022-12-06 16:36:59,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:36:59,731 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:36:59,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:36:59,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:36:59,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:36:59,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:36:59" (1/1) ... [2022-12-06 16:36:59,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a8e82c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:59, skipping insertion in model container [2022-12-06 16:36:59,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:36:59" (1/1) ... [2022-12-06 16:36:59,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:36:59,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:36:59,856 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/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-06 16:36:59,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:36:59,958 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:36:59,966 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/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-06 16:36:59,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,984 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,984 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,988 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,993 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:59,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:59,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:37:00,030 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:37:00,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:00 WrapperNode [2022-12-06 16:37:00,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:37:00,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:37:00,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:37:00,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:37:00,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:00" (1/1) ... [2022-12-06 16:37:00,054 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:00" (1/1) ... [2022-12-06 16:37:00,075 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-06 16:37:00,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:37:00,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:37:00,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:37:00,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:37:00,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:00" (1/1) ... [2022-12-06 16:37:00,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:00" (1/1) ... [2022-12-06 16:37:00,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:00" (1/1) ... [2022-12-06 16:37:00,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:00" (1/1) ... [2022-12-06 16:37:00,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:00" (1/1) ... [2022-12-06 16:37:00,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:00" (1/1) ... [2022-12-06 16:37:00,107 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:00" (1/1) ... [2022-12-06 16:37:00,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:00" (1/1) ... [2022-12-06 16:37:00,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:37:00,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:37:00,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:37:00,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:37:00,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:00" (1/1) ... [2022-12-06 16:37:00,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:37:00,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:37:00,144 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 16:37:00,150 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 16:37:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:37:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 16:37:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:37:00,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:37:00,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:37:00,174 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 16:37:00,174 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 16:37:00,174 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 16:37:00,174 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 16:37:00,174 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-06 16:37:00,174 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-06 16:37:00,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:37:00,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 16:37:00,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:37:00,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:37:00,177 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 16:37:00,259 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:37:00,260 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:37:00,436 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:37:00,441 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:37:00,441 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:37:00,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:37:00 BoogieIcfgContainer [2022-12-06 16:37:00,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:37:00,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:37:00,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:37:00,447 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:37:00,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:36:59" (1/3) ... [2022-12-06 16:37:00,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c565006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:37:00, skipping insertion in model container [2022-12-06 16:37:00,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:00" (2/3) ... [2022-12-06 16:37:00,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c565006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:37:00, skipping insertion in model container [2022-12-06 16:37:00,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:37:00" (3/3) ... [2022-12-06 16:37:00,449 INFO L112 eAbstractionObserver]: Analyzing ICFG safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:37:00,468 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:37:00,469 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:37:00,469 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:37:00,539 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 16:37:00,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2022-12-06 16:37:00,627 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-12-06 16:37:00,627 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:37:00,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-06 16:37:00,631 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2022-12-06 16:37:00,634 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2022-12-06 16:37:00,645 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:37:00,650 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;@15b11688, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:37:00,651 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 16:37:00,675 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2022-12-06 16:37:00,675 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:37:00,675 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:00,676 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] [2022-12-06 16:37:00,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:37:00,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:00,680 INFO L85 PathProgramCache]: Analyzing trace with hash 2225101, now seen corresponding path program 1 times [2022-12-06 16:37:00,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:00,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539446714] [2022-12-06 16:37:00,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:00,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:00,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:01,322 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 16:37:01,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:01,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539446714] [2022-12-06 16:37:01,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539446714] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:01,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:01,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:37:01,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722129261] [2022-12-06 16:37:01,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:01,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:37:01,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:01,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:37:01,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:37:01,382 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-06 16:37:01,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 70 transitions, 149 flow. Second operand has 7 states, 7 states have (on average 64.85714285714286) internal successors, (454), 7 states have internal predecessors, (454), 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 16:37:01,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:01,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-06 16:37:01,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:01,669 INFO L130 PetriNetUnfolder]: 263/652 cut-off events. [2022-12-06 16:37:01,669 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-12-06 16:37:01,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 652 events. 263/652 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3386 event pairs, 18 based on Foata normal form. 28/649 useless extension candidates. Maximal degree in co-relation 1113. Up to 116 conditions per place. [2022-12-06 16:37:01,676 INFO L137 encePairwiseOnDemand]: 72/85 looper letters, 22 selfloop transitions, 8 changer transitions 50/131 dead transitions. [2022-12-06 16:37:01,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 131 transitions, 431 flow [2022-12-06 16:37:01,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:37:01,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:37:01,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 905 transitions. [2022-12-06 16:37:01,692 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8190045248868778 [2022-12-06 16:37:01,696 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 12 predicate places. [2022-12-06 16:37:01,696 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 131 transitions, 431 flow [2022-12-06 16:37:01,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.85714285714286) internal successors, (454), 7 states have internal predecessors, (454), 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 16:37:01,697 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:01,697 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] [2022-12-06 16:37:01,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:37:01,698 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:37:01,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:01,699 INFO L85 PathProgramCache]: Analyzing trace with hash 654236366, now seen corresponding path program 1 times [2022-12-06 16:37:01,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:01,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113517894] [2022-12-06 16:37:01,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:01,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:01,935 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 16:37:01,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:01,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113517894] [2022-12-06 16:37:01,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113517894] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:01,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:01,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:37:01,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995364971] [2022-12-06 16:37:01,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:01,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:37:01,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:01,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:37:01,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:37:01,939 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-06 16:37:01,940 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 131 transitions, 431 flow. Second operand has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 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 16:37:01,940 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:01,940 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-06 16:37:01,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:02,164 INFO L130 PetriNetUnfolder]: 342/979 cut-off events. [2022-12-06 16:37:02,165 INFO L131 PetriNetUnfolder]: For 81/355 co-relation queries the response was YES. [2022-12-06 16:37:02,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2267 conditions, 979 events. 342/979 cut-off events. For 81/355 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 6533 event pairs, 5 based on Foata normal form. 18/972 useless extension candidates. Maximal degree in co-relation 2225. Up to 178 conditions per place. [2022-12-06 16:37:02,168 INFO L137 encePairwiseOnDemand]: 72/85 looper letters, 27 selfloop transitions, 14 changer transitions 177/269 dead transitions. [2022-12-06 16:37:02,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 269 transitions, 1425 flow [2022-12-06 16:37:02,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:37:02,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:37:02,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 900 transitions. [2022-12-06 16:37:02,170 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8144796380090498 [2022-12-06 16:37:02,170 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 24 predicate places. [2022-12-06 16:37:02,170 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 269 transitions, 1425 flow [2022-12-06 16:37:02,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 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 16:37:02,171 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:02,171 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] [2022-12-06 16:37:02,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:37:02,171 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:37:02,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:02,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1791477843, now seen corresponding path program 1 times [2022-12-06 16:37:02,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:02,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237620844] [2022-12-06 16:37:02,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:02,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:02,302 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 16:37:02,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:02,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237620844] [2022-12-06 16:37:02,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237620844] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:02,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:02,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:37:02,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385310279] [2022-12-06 16:37:02,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:02,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:37:02,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:02,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:37:02,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:37:02,305 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-06 16:37:02,305 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 269 transitions, 1425 flow. Second operand has 7 states, 7 states have (on average 65.14285714285714) internal successors, (456), 7 states have internal predecessors, (456), 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 16:37:02,305 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:02,305 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-06 16:37:02,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:02,534 INFO L130 PetriNetUnfolder]: 437/1348 cut-off events. [2022-12-06 16:37:02,535 INFO L131 PetriNetUnfolder]: For 212/2290 co-relation queries the response was YES. [2022-12-06 16:37:02,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3860 conditions, 1348 events. 437/1348 cut-off events. For 212/2290 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 10750 event pairs, 2 based on Foata normal form. 20/1348 useless extension candidates. Maximal degree in co-relation 3811. Up to 211 conditions per place. [2022-12-06 16:37:02,540 INFO L137 encePairwiseOnDemand]: 73/85 looper letters, 34 selfloop transitions, 18 changer transitions 395/498 dead transitions. [2022-12-06 16:37:02,540 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 498 transitions, 3705 flow [2022-12-06 16:37:02,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:37:02,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:37:02,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 900 transitions. [2022-12-06 16:37:02,542 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8144796380090498 [2022-12-06 16:37:02,542 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 36 predicate places. [2022-12-06 16:37:02,542 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 498 transitions, 3705 flow [2022-12-06 16:37:02,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.14285714285714) internal successors, (456), 7 states have internal predecessors, (456), 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 16:37:02,543 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:02,543 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] [2022-12-06 16:37:02,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:37:02,543 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:37:02,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:02,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1358524643, now seen corresponding path program 1 times [2022-12-06 16:37:02,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:02,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509610103] [2022-12-06 16:37:02,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:02,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:02,677 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 16:37:02,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:02,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509610103] [2022-12-06 16:37:02,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509610103] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:02,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:02,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:37:02,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253413714] [2022-12-06 16:37:02,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:02,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:37:02,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:02,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:37:02,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:37:02,679 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 85 [2022-12-06 16:37:02,679 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 498 transitions, 3705 flow. Second operand has 6 states, 6 states have (on average 71.66666666666667) internal successors, (430), 6 states have internal predecessors, (430), 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 16:37:02,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:02,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 85 [2022-12-06 16:37:02,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:02,859 INFO L130 PetriNetUnfolder]: 546/1730 cut-off events. [2022-12-06 16:37:02,859 INFO L131 PetriNetUnfolder]: For 806/1080 co-relation queries the response was YES. [2022-12-06 16:37:02,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5448 conditions, 1730 events. 546/1730 cut-off events. For 806/1080 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 14855 event pairs, 0 based on Foata normal form. 30/1752 useless extension candidates. Maximal degree in co-relation 5395. Up to 246 conditions per place. [2022-12-06 16:37:02,865 INFO L137 encePairwiseOnDemand]: 79/85 looper letters, 23 selfloop transitions, 8 changer transitions 525/632 dead transitions. [2022-12-06 16:37:02,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 632 transitions, 5487 flow [2022-12-06 16:37:02,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 16:37:02,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 16:37:02,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 655 transitions. [2022-12-06 16:37:02,866 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8562091503267973 [2022-12-06 16:37:02,867 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 44 predicate places. [2022-12-06 16:37:02,867 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 632 transitions, 5487 flow [2022-12-06 16:37:02,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.66666666666667) internal successors, (430), 6 states have internal predecessors, (430), 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 16:37:02,867 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:02,868 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] [2022-12-06 16:37:02,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:37:02,868 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:37:02,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:02,868 INFO L85 PathProgramCache]: Analyzing trace with hash 475446056, now seen corresponding path program 1 times [2022-12-06 16:37:02,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:02,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933177292] [2022-12-06 16:37:02,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:02,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:02,976 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 16:37:02,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:02,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933177292] [2022-12-06 16:37:02,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933177292] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:02,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:02,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:37:02,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438342857] [2022-12-06 16:37:02,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:02,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:37:02,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:02,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:37:02,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:37:02,979 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-06 16:37:02,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 632 transitions, 5487 flow. Second operand has 7 states, 7 states have (on average 69.71428571428571) internal successors, (488), 7 states have internal predecessors, (488), 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 16:37:02,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:02,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-06 16:37:02,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:03,311 INFO L130 PetriNetUnfolder]: 1177/2918 cut-off events. [2022-12-06 16:37:03,312 INFO L131 PetriNetUnfolder]: For 2849/5460 co-relation queries the response was YES. [2022-12-06 16:37:03,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10922 conditions, 2918 events. 1177/2918 cut-off events. For 2849/5460 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 25305 event pairs, 0 based on Foata normal form. 51/2962 useless extension candidates. Maximal degree in co-relation 10864. Up to 461 conditions per place. [2022-12-06 16:37:03,322 INFO L137 encePairwiseOnDemand]: 77/85 looper letters, 15 selfloop transitions, 7 changer transitions 886/973 dead transitions. [2022-12-06 16:37:03,322 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 973 transitions, 10257 flow [2022-12-06 16:37:03,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:37:03,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:37:03,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 920 transitions. [2022-12-06 16:37:03,324 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.832579185520362 [2022-12-06 16:37:03,324 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 56 predicate places. [2022-12-06 16:37:03,325 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 973 transitions, 10257 flow [2022-12-06 16:37:03,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.71428571428571) internal successors, (488), 7 states have internal predecessors, (488), 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 16:37:03,325 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:03,325 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] [2022-12-06 16:37:03,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 16:37:03,325 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:37:03,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:03,326 INFO L85 PathProgramCache]: Analyzing trace with hash 168293834, now seen corresponding path program 1 times [2022-12-06 16:37:03,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:03,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963398610] [2022-12-06 16:37:03,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:03,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:03,465 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 16:37:03,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:03,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963398610] [2022-12-06 16:37:03,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963398610] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:03,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:03,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:37:03,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176497576] [2022-12-06 16:37:03,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:03,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:37:03,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:03,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:37:03,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:37:03,467 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-06 16:37:03,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 973 transitions, 10257 flow. Second operand has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 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 16:37:03,468 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:03,468 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-06 16:37:03,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:03,919 INFO L130 PetriNetUnfolder]: 1241/3492 cut-off events. [2022-12-06 16:37:03,919 INFO L131 PetriNetUnfolder]: For 2827/3162 co-relation queries the response was YES. [2022-12-06 16:37:03,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10567 conditions, 3492 events. 1241/3492 cut-off events. For 2827/3162 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 32755 event pairs, 32 based on Foata normal form. 59/3438 useless extension candidates. Maximal degree in co-relation 10505. Up to 679 conditions per place. [2022-12-06 16:37:03,931 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 27 selfloop transitions, 15 changer transitions 419/579 dead transitions. [2022-12-06 16:37:03,931 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 579 transitions, 5847 flow [2022-12-06 16:37:03,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 16:37:03,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 16:37:03,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 728 transitions. [2022-12-06 16:37:03,933 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8564705882352941 [2022-12-06 16:37:03,933 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 65 predicate places. [2022-12-06 16:37:03,934 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 579 transitions, 5847 flow [2022-12-06 16:37:03,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 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 16:37:03,934 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:03,934 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] [2022-12-06 16:37:03,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 16:37:03,934 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:37:03,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:03,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1169769385, now seen corresponding path program 1 times [2022-12-06 16:37:03,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:03,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379021966] [2022-12-06 16:37:03,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:03,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:04,030 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 16:37:04,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:04,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379021966] [2022-12-06 16:37:04,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379021966] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:04,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:04,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:37:04,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266746147] [2022-12-06 16:37:04,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:04,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:37:04,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:04,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:37:04,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:37:04,031 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-06 16:37:04,032 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 579 transitions, 5847 flow. Second operand has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 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 16:37:04,032 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:04,032 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-06 16:37:04,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:04,296 INFO L130 PetriNetUnfolder]: 717/2135 cut-off events. [2022-12-06 16:37:04,297 INFO L131 PetriNetUnfolder]: For 2091/2724 co-relation queries the response was YES. [2022-12-06 16:37:04,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6237 conditions, 2135 events. 717/2135 cut-off events. For 2091/2724 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 18837 event pairs, 0 based on Foata normal form. 119/2173 useless extension candidates. Maximal degree in co-relation 6171. Up to 528 conditions per place. [2022-12-06 16:37:04,307 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 28 selfloop transitions, 36 changer transitions 174/311 dead transitions. [2022-12-06 16:37:04,307 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 311 transitions, 2753 flow [2022-12-06 16:37:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:37:04,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:37:04,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 947 transitions. [2022-12-06 16:37:04,309 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8570135746606334 [2022-12-06 16:37:04,309 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 77 predicate places. [2022-12-06 16:37:04,309 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 311 transitions, 2753 flow [2022-12-06 16:37:04,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 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 16:37:04,310 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:04,310 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 16:37:04,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 16:37:04,310 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:37:04,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:04,311 INFO L85 PathProgramCache]: Analyzing trace with hash 581483336, now seen corresponding path program 1 times [2022-12-06 16:37:04,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:04,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859895595] [2022-12-06 16:37:04,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:04,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:04,431 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 16:37:04,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:04,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859895595] [2022-12-06 16:37:04,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859895595] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:04,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:04,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:37:04,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580184521] [2022-12-06 16:37:04,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:04,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:37:04,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:04,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:37:04,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:37:04,433 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-06 16:37:04,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 311 transitions, 2753 flow. Second operand has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 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 16:37:04,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:04,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-06 16:37:04,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:04,697 INFO L130 PetriNetUnfolder]: 658/1829 cut-off events. [2022-12-06 16:37:04,697 INFO L131 PetriNetUnfolder]: For 2551/3404 co-relation queries the response was YES. [2022-12-06 16:37:04,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6214 conditions, 1829 events. 658/1829 cut-off events. For 2551/3404 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 15950 event pairs, 0 based on Foata normal form. 136/1890 useless extension candidates. Maximal degree in co-relation 6144. Up to 504 conditions per place. [2022-12-06 16:37:04,706 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 23 selfloop transitions, 40 changer transitions 101/226 dead transitions. [2022-12-06 16:37:04,706 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 226 transitions, 1965 flow [2022-12-06 16:37:04,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 16:37:04,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 16:37:04,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1150 transitions. [2022-12-06 16:37:04,708 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8455882352941176 [2022-12-06 16:37:04,709 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 62 predicate places. [2022-12-06 16:37:04,709 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 226 transitions, 1965 flow [2022-12-06 16:37:04,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 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 16:37:04,709 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:04,709 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] [2022-12-06 16:37:04,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 16:37:04,710 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:37:04,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:04,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1495745091, now seen corresponding path program 1 times [2022-12-06 16:37:04,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:04,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368587723] [2022-12-06 16:37:04,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:04,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:04,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:04,810 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 16:37:04,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:04,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368587723] [2022-12-06 16:37:04,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368587723] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:04,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:04,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:37:04,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589416793] [2022-12-06 16:37:04,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:04,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:37:04,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:04,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:37:04,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:37:04,812 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-06 16:37:04,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 226 transitions, 1965 flow. Second operand has 8 states, 8 states have (on average 65.25) internal successors, (522), 8 states have internal predecessors, (522), 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 16:37:04,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:04,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-06 16:37:04,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:05,112 INFO L130 PetriNetUnfolder]: 1111/2947 cut-off events. [2022-12-06 16:37:05,112 INFO L131 PetriNetUnfolder]: For 3502/4708 co-relation queries the response was YES. [2022-12-06 16:37:05,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10187 conditions, 2947 events. 1111/2947 cut-off events. For 3502/4708 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 28380 event pairs, 0 based on Foata normal form. 77/2870 useless extension candidates. Maximal degree in co-relation 10110. Up to 867 conditions per place. [2022-12-06 16:37:05,125 INFO L137 encePairwiseOnDemand]: 73/85 looper letters, 14 selfloop transitions, 9 changer transitions 126/248 dead transitions. [2022-12-06 16:37:05,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 248 transitions, 2409 flow [2022-12-06 16:37:05,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 16:37:05,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 16:37:05,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 797 transitions. [2022-12-06 16:37:05,127 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7813725490196078 [2022-12-06 16:37:05,127 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 73 predicate places. [2022-12-06 16:37:05,127 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 248 transitions, 2409 flow [2022-12-06 16:37:05,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 65.25) internal successors, (522), 8 states have internal predecessors, (522), 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 16:37:05,128 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:05,128 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] [2022-12-06 16:37:05,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 16:37:05,128 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:37:05,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:05,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1125831521, now seen corresponding path program 2 times [2022-12-06 16:37:05,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:05,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311735622] [2022-12-06 16:37:05,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:05,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:05,230 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 16:37:05,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:05,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311735622] [2022-12-06 16:37:05,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311735622] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:05,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:05,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:37:05,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500195467] [2022-12-06 16:37:05,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:05,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:37:05,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:05,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:37:05,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:37:05,232 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-06 16:37:05,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 248 transitions, 2409 flow. Second operand has 8 states, 8 states have (on average 65.25) internal successors, (522), 8 states have internal predecessors, (522), 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 16:37:05,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:05,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-06 16:37:05,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:05,584 INFO L130 PetriNetUnfolder]: 1435/3661 cut-off events. [2022-12-06 16:37:05,585 INFO L131 PetriNetUnfolder]: For 3087/4685 co-relation queries the response was YES. [2022-12-06 16:37:05,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12937 conditions, 3661 events. 1435/3661 cut-off events. For 3087/4685 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 36828 event pairs, 0 based on Foata normal form. 19/3450 useless extension candidates. Maximal degree in co-relation 12853. Up to 1127 conditions per place. [2022-12-06 16:37:05,597 INFO L137 encePairwiseOnDemand]: 73/85 looper letters, 0 selfloop transitions, 0 changer transitions 261/261 dead transitions. [2022-12-06 16:37:05,598 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 261 transitions, 2823 flow [2022-12-06 16:37:05,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 16:37:05,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 16:37:05,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 727 transitions. [2022-12-06 16:37:05,599 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7775401069518717 [2022-12-06 16:37:05,599 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 81 predicate places. [2022-12-06 16:37:05,599 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 261 transitions, 2823 flow [2022-12-06 16:37:05,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 65.25) internal successors, (522), 8 states have internal predecessors, (522), 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 16:37:05,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 16:37:05,602 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 16:37:05,602 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 16:37:05,602 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 16:37:05,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-06 16:37:05,602 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:05,604 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:37:05,604 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:37:05,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:37:05 BasicIcfg [2022-12-06 16:37:05,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:37:05,608 INFO L158 Benchmark]: Toolchain (without parser) took 5877.03ms. Allocated memory was 196.1MB in the beginning and 657.5MB in the end (delta: 461.4MB). Free memory was 170.3MB in the beginning and 511.8MB in the end (delta: -341.5MB). Peak memory consumption was 120.4MB. Max. memory is 8.0GB. [2022-12-06 16:37:05,608 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 196.1MB. Free memory was 171.7MB in the beginning and 171.5MB in the end (delta: 158.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:37:05,608 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.42ms. Allocated memory is still 196.1MB. Free memory was 170.3MB in the beginning and 146.7MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-06 16:37:05,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.63ms. Allocated memory is still 196.1MB. Free memory was 146.7MB in the beginning and 144.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:37:05,609 INFO L158 Benchmark]: Boogie Preprocessor took 33.15ms. Allocated memory is still 196.1MB. Free memory was 144.6MB in the beginning and 143.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 16:37:05,609 INFO L158 Benchmark]: RCFGBuilder took 332.42ms. Allocated memory is still 196.1MB. Free memory was 143.0MB in the beginning and 128.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-06 16:37:05,609 INFO L158 Benchmark]: TraceAbstraction took 5163.20ms. Allocated memory was 196.1MB in the beginning and 657.5MB in the end (delta: 461.4MB). Free memory was 128.3MB in the beginning and 511.8MB in the end (delta: -383.5MB). Peak memory consumption was 78.4MB. Max. memory is 8.0GB. [2022-12-06 16:37:05,610 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 196.1MB. Free memory was 171.7MB in the beginning and 171.5MB in the end (delta: 158.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 299.42ms. Allocated memory is still 196.1MB. Free memory was 170.3MB in the beginning and 146.7MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.63ms. Allocated memory is still 196.1MB. Free memory was 146.7MB in the beginning and 144.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.15ms. Allocated memory is still 196.1MB. Free memory was 144.6MB in the beginning and 143.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 332.42ms. Allocated memory is still 196.1MB. Free memory was 143.0MB in the beginning and 128.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 5163.20ms. Allocated memory was 196.1MB in the beginning and 657.5MB in the end (delta: 461.4MB). Free memory was 128.3MB in the beginning and 511.8MB in the end (delta: -383.5MB). Peak memory consumption was 78.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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 7 procedures, 108 locations, 4 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: 5.0s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 513 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 513 mSDsluCounter, 563 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 426 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 709 IncrementalHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 137 mSDtfsCounter, 709 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10257occurred in iteration=5, InterpolantAutomatonStates: 123, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 569 NumberOfCodeBlocks, 569 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 559 ConstructedInterpolants, 0 QuantifiedInterpolants, 2575 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 16:37:05,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...