/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 04:25:06,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 04:25:06,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 04:25:06,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 04:25:06,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 04:25:06,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 04:25:06,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 04:25:06,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 04:25:06,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 04:25:06,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 04:25:06,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 04:25:06,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 04:25:06,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 04:25:06,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 04:25:06,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 04:25:06,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 04:25:06,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 04:25:06,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 04:25:06,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 04:25:06,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 04:25:06,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 04:25:06,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 04:25:06,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 04:25:06,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 04:25:06,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 04:25:06,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 04:25:06,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 04:25:06,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 04:25:06,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 04:25:06,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 04:25:06,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 04:25:06,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 04:25:06,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 04:25:06,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 04:25:06,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 04:25:06,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 04:25:06,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 04:25:06,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 04:25:06,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 04:25:06,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 04:25:06,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 04:25:06,408 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-RepeatedSemanticLbeWithPredicates.epf [2022-12-06 04:25:06,438 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 04:25:06,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 04:25:06,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 04:25:06,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 04:25:06,450 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 04:25:06,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 04:25:06,451 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 04:25:06,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 04:25:06,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 04:25:06,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 04:25:06,451 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 04:25:06,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 04:25:06,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 04:25:06,452 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 04:25:06,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 04:25:06,452 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 04:25:06,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 04:25:06,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 04:25:06,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 04:25:06,452 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 04:25:06,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 04:25:06,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:25:06,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 04:25:06,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 04:25:06,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 04:25:06,453 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 04:25:06,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 04:25:06,454 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 04:25:06,454 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 04:25:06,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 04:25:06,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 04:25:06,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 04:25:06,838 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 04:25:06,838 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 04:25:06,839 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.i [2022-12-06 04:25:08,101 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 04:25:08,440 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 04:25:08,441 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.i [2022-12-06 04:25:08,462 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c96490366/6cd2e979abd046a0b357e544a104ebf7/FLAG94b7b0957 [2022-12-06 04:25:08,475 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c96490366/6cd2e979abd046a0b357e544a104ebf7 [2022-12-06 04:25:08,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 04:25:08,478 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 04:25:08,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 04:25:08,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 04:25:08,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 04:25:08,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:25:08" (1/1) ... [2022-12-06 04:25:08,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50b201c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:08, skipping insertion in model container [2022-12-06 04:25:08,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:25:08" (1/1) ... [2022-12-06 04:25:08,491 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 04:25:08,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 04:25:08,707 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/safe003_tso.i[945,958] [2022-12-06 04:25:08,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,849 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:25:08,860 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 04:25:08,874 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/safe003_tso.i[945,958] [2022-12-06 04:25:08,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,906 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,906 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,906 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,906 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,906 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,907 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,907 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,910 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,910 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,910 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:25:08,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:25:08,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:25:08,952 INFO L208 MainTranslator]: Completed translation [2022-12-06 04:25:08,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:08 WrapperNode [2022-12-06 04:25:08,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 04:25:08,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 04:25:08,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 04:25:08,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 04:25:08,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:08" (1/1) ... [2022-12-06 04:25:08,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:08" (1/1) ... [2022-12-06 04:25:09,008 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-06 04:25:09,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 04:25:09,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 04:25:09,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 04:25:09,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 04:25:09,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:08" (1/1) ... [2022-12-06 04:25:09,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:08" (1/1) ... [2022-12-06 04:25:09,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:08" (1/1) ... [2022-12-06 04:25:09,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:08" (1/1) ... [2022-12-06 04:25:09,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:08" (1/1) ... [2022-12-06 04:25:09,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:08" (1/1) ... [2022-12-06 04:25:09,035 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:08" (1/1) ... [2022-12-06 04:25:09,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:08" (1/1) ... [2022-12-06 04:25:09,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 04:25:09,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 04:25:09,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 04:25:09,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 04:25:09,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:08" (1/1) ... [2022-12-06 04:25:09,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:25:09,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 04:25:09,079 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 04:25:09,098 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 04:25:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 04:25:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 04:25:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 04:25:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 04:25:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 04:25:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 04:25:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 04:25:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 04:25:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 04:25:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-06 04:25:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-06 04:25:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 04:25:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 04:25:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 04:25:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 04:25:09,126 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 04:25:09,266 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 04:25:09,267 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 04:25:09,483 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 04:25:09,489 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 04:25:09,489 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 04:25:09,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:25:09 BoogieIcfgContainer [2022-12-06 04:25:09,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 04:25:09,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 04:25:09,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 04:25:09,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 04:25:09,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:25:08" (1/3) ... [2022-12-06 04:25:09,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d936c76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:25:09, skipping insertion in model container [2022-12-06 04:25:09,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:08" (2/3) ... [2022-12-06 04:25:09,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d936c76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:25:09, skipping insertion in model container [2022-12-06 04:25:09,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:25:09" (3/3) ... [2022-12-06 04:25:09,507 INFO L112 eAbstractionObserver]: Analyzing ICFG safe003_tso.i [2022-12-06 04:25:09,526 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 04:25:09,526 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 04:25:09,527 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 04:25:09,610 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 04:25:09,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2022-12-06 04:25:09,746 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-12-06 04:25:09,746 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:25:09,751 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 04:25:09,751 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2022-12-06 04:25:09,756 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2022-12-06 04:25:09,758 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:25:09,772 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 70 transitions, 149 flow [2022-12-06 04:25:09,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 70 transitions, 149 flow [2022-12-06 04:25:09,799 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2022-12-06 04:25:09,800 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:25:09,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 1/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-06 04:25:09,802 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 70 transitions, 149 flow [2022-12-06 04:25:09,803 INFO L188 LiptonReduction]: Number of co-enabled transitions 1044 [2022-12-06 04:25:12,224 INFO L203 LiptonReduction]: Total number of compositions: 53 [2022-12-06 04:25:12,242 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 04:25:12,249 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=REPEATED_LIPTON_PN, 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;@1b9a8d49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 04:25:12,249 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 04:25:12,253 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2022-12-06 04:25:12,253 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:25:12,253 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:25:12,254 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:25:12,254 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 04:25:12,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:25:12,259 INFO L85 PathProgramCache]: Analyzing trace with hash 229073430, now seen corresponding path program 1 times [2022-12-06 04:25:12,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:25:12,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251387752] [2022-12-06 04:25:12,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:25:12,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:25:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:25:12,456 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 04:25:12,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:25:12,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251387752] [2022-12-06 04:25:12,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251387752] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:25:12,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:25:12,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 04:25:12,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213832187] [2022-12-06 04:25:12,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:25:12,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-06 04:25:12,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:25:12,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-06 04:25:12,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-06 04:25:12,496 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-06 04:25:12,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 04:25:12,498 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:25:12,498 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-06 04:25:12,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:25:12,600 INFO L130 PetriNetUnfolder]: 164/296 cut-off events. [2022-12-06 04:25:12,601 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-06 04:25:12,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 597 conditions, 296 events. 164/296 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1225 event pairs, 164 based on Foata normal form. 0/283 useless extension candidates. Maximal degree in co-relation 586. Up to 271 conditions per place. [2022-12-06 04:25:12,607 INFO L137 encePairwiseOnDemand]: 17/18 looper letters, 14 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2022-12-06 04:25:12,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 71 flow [2022-12-06 04:25:12,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-06 04:25:12,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-06 04:25:12,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 21 transitions. [2022-12-06 04:25:12,617 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2022-12-06 04:25:12,619 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 2 states and 21 transitions. [2022-12-06 04:25:12,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 71 flow [2022-12-06 04:25:12,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 68 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-06 04:25:12,623 INFO L231 Difference]: Finished difference. Result has 25 places, 17 transitions, 40 flow [2022-12-06 04:25:12,625 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=25, PETRI_TRANSITIONS=17} [2022-12-06 04:25:12,628 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places. [2022-12-06 04:25:12,629 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:25:12,630 INFO L89 Accepts]: Start accepts. Operand has 25 places, 17 transitions, 40 flow [2022-12-06 04:25:12,632 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:25:12,632 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:25:12,633 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 17 transitions, 40 flow [2022-12-06 04:25:12,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 24 places, 17 transitions, 40 flow [2022-12-06 04:25:12,639 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2022-12-06 04:25:12,639 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:25:12,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-06 04:25:12,640 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 17 transitions, 40 flow [2022-12-06 04:25:12,640 INFO L188 LiptonReduction]: Number of co-enabled transitions 126 [2022-12-06 04:25:12,663 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:25:12,666 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 37 [2022-12-06 04:25:12,666 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 40 flow [2022-12-06 04:25:12,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 04:25:12,666 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:25:12,666 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:25:12,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 04:25:12,667 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 04:25:12,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:25:12,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1488657983, now seen corresponding path program 1 times [2022-12-06 04:25:12,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:25:12,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575529113] [2022-12-06 04:25:12,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:25:12,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:25:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:25:12,925 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 04:25:12,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:25:12,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575529113] [2022-12-06 04:25:12,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575529113] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:25:12,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:25:12,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 04:25:12,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959384222] [2022-12-06 04:25:12,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:25:12,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 04:25:12,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:25:12,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 04:25:12,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 04:25:12,928 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 17 [2022-12-06 04:25:12,928 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 04:25:12,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:25:12,929 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 17 [2022-12-06 04:25:12,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:25:13,015 INFO L130 PetriNetUnfolder]: 416/720 cut-off events. [2022-12-06 04:25:13,016 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:25:13,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1450 conditions, 720 events. 416/720 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3581 event pairs, 159 based on Foata normal form. 43/763 useless extension candidates. Maximal degree in co-relation 1442. Up to 362 conditions per place. [2022-12-06 04:25:13,021 INFO L137 encePairwiseOnDemand]: 10/17 looper letters, 23 selfloop transitions, 6 changer transitions 0/30 dead transitions. [2022-12-06 04:25:13,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 30 transitions, 128 flow [2022-12-06 04:25:13,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 04:25:13,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 04:25:13,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2022-12-06 04:25:13,023 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6470588235294118 [2022-12-06 04:25:13,023 INFO L175 Difference]: Start difference. First operand has 24 places, 17 transitions, 40 flow. Second operand 3 states and 33 transitions. [2022-12-06 04:25:13,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 30 transitions, 128 flow [2022-12-06 04:25:13,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 30 transitions, 128 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-06 04:25:13,025 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 86 flow [2022-12-06 04:25:13,025 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2022-12-06 04:25:13,026 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2022-12-06 04:25:13,026 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:25:13,026 INFO L89 Accepts]: Start accepts. Operand has 28 places, 22 transitions, 86 flow [2022-12-06 04:25:13,027 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:25:13,027 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:25:13,027 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 22 transitions, 86 flow [2022-12-06 04:25:13,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 22 transitions, 86 flow [2022-12-06 04:25:13,061 INFO L130 PetriNetUnfolder]: 46/143 cut-off events. [2022-12-06 04:25:13,061 INFO L131 PetriNetUnfolder]: For 24/27 co-relation queries the response was YES. [2022-12-06 04:25:13,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 143 events. 46/143 cut-off events. For 24/27 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 678 event pairs, 18 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 289. Up to 53 conditions per place. [2022-12-06 04:25:13,063 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 22 transitions, 86 flow [2022-12-06 04:25:13,063 INFO L188 LiptonReduction]: Number of co-enabled transitions 144 [2022-12-06 04:25:13,065 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:25:13,067 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 41 [2022-12-06 04:25:13,067 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 86 flow [2022-12-06 04:25:13,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 04:25:13,067 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:25:13,067 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:25:13,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 04:25:13,068 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 04:25:13,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:25:13,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1096243217, now seen corresponding path program 1 times [2022-12-06 04:25:13,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:25:13,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718612884] [2022-12-06 04:25:13,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:25:13,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:25:13,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:25:13,235 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 04:25:13,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:25:13,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718612884] [2022-12-06 04:25:13,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718612884] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:25:13,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:25:13,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 04:25:13,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243448145] [2022-12-06 04:25:13,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:25:13,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 04:25:13,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:25:13,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 04:25:13,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 04:25:13,238 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 17 [2022-12-06 04:25:13,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 04:25:13,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:25:13,239 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 17 [2022-12-06 04:25:13,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:25:13,305 INFO L130 PetriNetUnfolder]: 313/555 cut-off events. [2022-12-06 04:25:13,305 INFO L131 PetriNetUnfolder]: For 217/220 co-relation queries the response was YES. [2022-12-06 04:25:13,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1451 conditions, 555 events. 313/555 cut-off events. For 217/220 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2563 event pairs, 137 based on Foata normal form. 18/568 useless extension candidates. Maximal degree in co-relation 1439. Up to 279 conditions per place. [2022-12-06 04:25:13,309 INFO L137 encePairwiseOnDemand]: 14/17 looper letters, 21 selfloop transitions, 3 changer transitions 2/29 dead transitions. [2022-12-06 04:25:13,309 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 29 transitions, 164 flow [2022-12-06 04:25:13,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 04:25:13,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 04:25:13,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2022-12-06 04:25:13,310 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5294117647058824 [2022-12-06 04:25:13,311 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 86 flow. Second operand 3 states and 27 transitions. [2022-12-06 04:25:13,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 29 transitions, 164 flow [2022-12-06 04:25:13,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 29 transitions, 148 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 04:25:13,314 INFO L231 Difference]: Finished difference. Result has 29 places, 22 transitions, 85 flow [2022-12-06 04:25:13,315 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=29, PETRI_TRANSITIONS=22} [2022-12-06 04:25:13,316 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2022-12-06 04:25:13,316 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:25:13,316 INFO L89 Accepts]: Start accepts. Operand has 29 places, 22 transitions, 85 flow [2022-12-06 04:25:13,317 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:25:13,318 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:25:13,318 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 22 transitions, 85 flow [2022-12-06 04:25:13,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 22 transitions, 85 flow [2022-12-06 04:25:13,326 INFO L130 PetriNetUnfolder]: 23/88 cut-off events. [2022-12-06 04:25:13,326 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-06 04:25:13,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 88 events. 23/88 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 340 event pairs, 7 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 169. Up to 30 conditions per place. [2022-12-06 04:25:13,328 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 22 transitions, 85 flow [2022-12-06 04:25:13,328 INFO L188 LiptonReduction]: Number of co-enabled transitions 144 [2022-12-06 04:25:13,331 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:25:13,332 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 16 [2022-12-06 04:25:13,332 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 22 transitions, 85 flow [2022-12-06 04:25:13,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 04:25:13,332 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:25:13,333 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:25:13,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 04:25:13,333 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 04:25:13,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:25:13,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1221921835, now seen corresponding path program 1 times [2022-12-06 04:25:13,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:25:13,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318164670] [2022-12-06 04:25:13,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:25:13,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:25:13,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:25:13,437 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 04:25:13,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:25:13,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318164670] [2022-12-06 04:25:13,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318164670] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:25:13,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:25:13,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:25:13,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667440202] [2022-12-06 04:25:13,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:25:13,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:25:13,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:25:13,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:25:13,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:25:13,440 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 17 [2022-12-06 04:25:13,440 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 22 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 04:25:13,440 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:25:13,440 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 17 [2022-12-06 04:25:13,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:25:13,544 INFO L130 PetriNetUnfolder]: 380/691 cut-off events. [2022-12-06 04:25:13,544 INFO L131 PetriNetUnfolder]: For 200/200 co-relation queries the response was YES. [2022-12-06 04:25:13,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1723 conditions, 691 events. 380/691 cut-off events. For 200/200 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3496 event pairs, 88 based on Foata normal form. 18/709 useless extension candidates. Maximal degree in co-relation 1710. Up to 376 conditions per place. [2022-12-06 04:25:13,551 INFO L137 encePairwiseOnDemand]: 12/17 looper letters, 26 selfloop transitions, 6 changer transitions 11/44 dead transitions. [2022-12-06 04:25:13,551 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 44 transitions, 249 flow [2022-12-06 04:25:13,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:25:13,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:25:13,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 40 transitions. [2022-12-06 04:25:13,552 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5882352941176471 [2022-12-06 04:25:13,554 INFO L175 Difference]: Start difference. First operand has 29 places, 22 transitions, 85 flow. Second operand 4 states and 40 transitions. [2022-12-06 04:25:13,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 44 transitions, 249 flow [2022-12-06 04:25:13,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 44 transitions, 239 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 04:25:13,557 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 108 flow [2022-12-06 04:25:13,557 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=108, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2022-12-06 04:25:13,558 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2022-12-06 04:25:13,561 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:25:13,561 INFO L89 Accepts]: Start accepts. Operand has 32 places, 22 transitions, 108 flow [2022-12-06 04:25:13,563 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:25:13,563 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:25:13,563 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 22 transitions, 108 flow [2022-12-06 04:25:13,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 22 transitions, 108 flow [2022-12-06 04:25:13,575 INFO L130 PetriNetUnfolder]: 7/56 cut-off events. [2022-12-06 04:25:13,575 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-12-06 04:25:13,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 56 events. 7/56 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 193 event pairs, 2 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 129. Up to 18 conditions per place. [2022-12-06 04:25:13,577 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 22 transitions, 108 flow [2022-12-06 04:25:13,577 INFO L188 LiptonReduction]: Number of co-enabled transitions 122 [2022-12-06 04:25:13,583 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:25:13,585 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 24 [2022-12-06 04:25:13,585 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 108 flow [2022-12-06 04:25:13,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 04:25:13,585 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:25:13,585 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:25:13,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 04:25:13,586 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 04:25:13,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:25:13,586 INFO L85 PathProgramCache]: Analyzing trace with hash -773283783, now seen corresponding path program 1 times [2022-12-06 04:25:13,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:25:13,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456281444] [2022-12-06 04:25:13,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:25:13,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:25:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:25:13,713 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 04:25:13,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:25:13,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456281444] [2022-12-06 04:25:13,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456281444] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:25:13,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:25:13,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 04:25:13,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791659405] [2022-12-06 04:25:13,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:25:13,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 04:25:13,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:25:13,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 04:25:13,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 04:25:13,716 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 17 [2022-12-06 04:25:13,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 04:25:13,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:25:13,717 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 17 [2022-12-06 04:25:13,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:25:13,849 INFO L130 PetriNetUnfolder]: 246/473 cut-off events. [2022-12-06 04:25:13,849 INFO L131 PetriNetUnfolder]: For 271/271 co-relation queries the response was YES. [2022-12-06 04:25:13,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1301 conditions, 473 events. 246/473 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2320 event pairs, 50 based on Foata normal form. 4/477 useless extension candidates. Maximal degree in co-relation 1286. Up to 150 conditions per place. [2022-12-06 04:25:13,852 INFO L137 encePairwiseOnDemand]: 10/17 looper letters, 19 selfloop transitions, 5 changer transitions 24/49 dead transitions. [2022-12-06 04:25:13,852 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 49 transitions, 280 flow [2022-12-06 04:25:13,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 04:25:13,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 04:25:13,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 55 transitions. [2022-12-06 04:25:13,855 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.46218487394957986 [2022-12-06 04:25:13,856 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 108 flow. Second operand 7 states and 55 transitions. [2022-12-06 04:25:13,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 49 transitions, 280 flow [2022-12-06 04:25:13,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 49 transitions, 268 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-06 04:25:13,866 INFO L231 Difference]: Finished difference. Result has 38 places, 19 transitions, 93 flow [2022-12-06 04:25:13,867 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=93, PETRI_PLACES=38, PETRI_TRANSITIONS=19} [2022-12-06 04:25:13,868 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 11 predicate places. [2022-12-06 04:25:13,869 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:25:13,869 INFO L89 Accepts]: Start accepts. Operand has 38 places, 19 transitions, 93 flow [2022-12-06 04:25:13,870 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:25:13,870 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:25:13,870 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 19 transitions, 93 flow [2022-12-06 04:25:13,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 19 transitions, 93 flow [2022-12-06 04:25:13,875 INFO L130 PetriNetUnfolder]: 2/29 cut-off events. [2022-12-06 04:25:13,875 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-12-06 04:25:13,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 29 events. 2/29 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 52 event pairs, 1 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 68. Up to 8 conditions per place. [2022-12-06 04:25:13,875 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 19 transitions, 93 flow [2022-12-06 04:25:13,875 INFO L188 LiptonReduction]: Number of co-enabled transitions 72 [2022-12-06 04:25:13,900 ERROR L799 SequenceRule]: Run adaptation not supported for post-scripts [2022-12-06 04:25:13,903 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [184] L741-->L744: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] and [190] L756-->L759: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] [2022-12-06 04:25:13,938 INFO L203 LiptonReduction]: Total number of compositions: 3 [2022-12-06 04:25:13,939 ERROR L123 eatedLiptonReduction]: Lipton reduction run adaptation of counterexample failed. [2022-12-06 04:25:13,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 04:25:13,940 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word contains letters no longer in the reduced abstraction's alphabet! at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:125) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.refineAbstraction(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-06 04:25:13,942 INFO L158 Benchmark]: Toolchain (without parser) took 5464.34ms. Allocated memory was 177.2MB in the beginning and 216.0MB in the end (delta: 38.8MB). Free memory was 151.8MB in the beginning and 133.0MB in the end (delta: 18.8MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. [2022-12-06 04:25:13,943 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 177.2MB. Free memory is still 154.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:25:13,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.61ms. Allocated memory is still 177.2MB. Free memory was 151.8MB in the beginning and 128.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-06 04:25:13,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.01ms. Allocated memory is still 177.2MB. Free memory was 128.7MB in the beginning and 126.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 04:25:13,944 INFO L158 Benchmark]: Boogie Preprocessor took 29.30ms. Allocated memory is still 177.2MB. Free memory was 126.6MB in the beginning and 125.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 04:25:13,944 INFO L158 Benchmark]: RCFGBuilder took 452.29ms. Allocated memory is still 177.2MB. Free memory was 125.1MB in the beginning and 111.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 04:25:13,944 INFO L158 Benchmark]: TraceAbstraction took 4448.50ms. Allocated memory was 177.2MB in the beginning and 216.0MB in the end (delta: 38.8MB). Free memory was 110.4MB in the beginning and 133.0MB in the end (delta: -22.6MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-12-06 04:25:13,946 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 177.2MB. Free memory is still 154.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 472.61ms. Allocated memory is still 177.2MB. Free memory was 151.8MB in the beginning and 128.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.01ms. Allocated memory is still 177.2MB. Free memory was 128.7MB in the beginning and 126.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.30ms. Allocated memory is still 177.2MB. Free memory was 126.6MB in the beginning and 125.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 452.29ms. Allocated memory is still 177.2MB. Free memory was 125.1MB in the beginning and 111.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4448.50ms. Allocated memory was 177.2MB in the beginning and 216.0MB in the end (delta: 38.8MB). Free memory was 110.4MB in the beginning and 133.0MB in the end (delta: -22.6MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 79 PlacesBefore, 27 PlacesAfterwards, 70 TransitionsBefore, 18 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 53 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 767, independent: 728, independent conditional: 728, independent unconditional: 0, dependent: 39, dependent conditional: 39, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 767, independent: 728, independent conditional: 0, independent unconditional: 728, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 767, independent: 728, independent conditional: 0, independent unconditional: 728, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 767, independent: 728, independent conditional: 0, independent unconditional: 728, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 664, independent: 631, independent conditional: 0, independent unconditional: 631, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 664, independent: 616, independent conditional: 0, independent unconditional: 616, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 48, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 108, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 767, independent: 97, independent conditional: 0, independent unconditional: 97, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 664, unknown conditional: 0, unknown unconditional: 664] , Statistics on independence cache: Total cache size (in pairs): 977, Positive cache size: 944, Positive conditional cache size: 0, Positive unconditional cache size: 944, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 24 PlacesBefore, 24 PlacesAfterwards, 17 TransitionsBefore, 17 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 51, independent: 37, independent conditional: 37, independent unconditional: 0, dependent: 14, dependent conditional: 14, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 51, independent: 37, independent conditional: 0, independent unconditional: 37, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 51, independent: 37, independent conditional: 0, independent unconditional: 37, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 51, independent: 37, independent conditional: 0, independent unconditional: 37, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 44, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 44, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 21, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 51, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 44, unknown conditional: 0, unknown unconditional: 44] , Statistics on independence cache: Total cache size (in pairs): 44, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 28 PlacesBefore, 28 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 34, independent: 29, independent conditional: 29, independent unconditional: 0, dependent: 5, dependent conditional: 5, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 34, independent: 29, independent conditional: 4, independent unconditional: 25, dependent: 5, dependent conditional: 2, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 34, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 34, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 34, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 39, Positive conditional cache size: 0, Positive unconditional cache size: 39, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 29 PlacesBefore, 29 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30, independent: 25, independent conditional: 25, independent unconditional: 0, dependent: 5, dependent conditional: 5, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 30, independent: 25, independent conditional: 2, independent unconditional: 23, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 30, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 30, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 30, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 39, Positive conditional cache size: 0, Positive unconditional cache size: 39, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 2, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 32 PlacesBefore, 32 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 122 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 48, independent: 40, independent conditional: 40, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 48, independent: 40, independent conditional: 3, independent unconditional: 37, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 48, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 48, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 48, independent: 37, independent conditional: 0, independent unconditional: 37, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 35 PlacesBefore, 34 PlacesAfterwards, 19 TransitionsBefore, 18 TransitionsAfterwards, 72 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 59, independent: 49, independent conditional: 49, independent unconditional: 0, dependent: 10, dependent conditional: 10, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 59, independent: 49, independent conditional: 11, independent unconditional: 38, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 59, independent: 49, independent conditional: 0, independent unconditional: 49, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 59, independent: 49, independent conditional: 0, independent unconditional: 49, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 59, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 11, Maximal queried relation: 0 - ExceptionOrErrorResult: AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word contains letters no longer in the reduced abstraction's alphabet! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word contains letters no longer in the reduced abstraction's alphabet!: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:125) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-06 04:25:13,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...