/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:26:03,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:26:03,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:26:03,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:26:03,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:26:03,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:26:03,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:26:03,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:26:03,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:26:03,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:26:03,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:26:03,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:26:03,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:26:03,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:26:03,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:26:03,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:26:03,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:26:03,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:26:03,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:26:03,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:26:03,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:26:03,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:26:03,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:26:03,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:26:03,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:26:03,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:26:03,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:26:03,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:26:03,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:26:03,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 20:26:03,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 20:26:03,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 20:26:03,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 20:26:03,676 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 20:26:03,676 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 20:26:03,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 20:26:03,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 20:26:03,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 20:26:03,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:26:03,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:26:03,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:26:03,679 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-SemanticLbe.epf [2022-12-05 20:26:03,702 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:26:03,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:26:03,704 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:26:03,704 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:26:03,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:26:03,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:26:03,705 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:26:03,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:26:03,705 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:26:03,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:26:03,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:26:03,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:26:03,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:26:03,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:26:03,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:26:03,707 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:26:03,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:26:03,707 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:26:03,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:26:03,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:26:03,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:26:03,707 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:26:03,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:26:03,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:26:03,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:26:03,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:26:03,708 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:26:03,708 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:26:03,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:26:03,708 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:26:03,708 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:26:03,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:26:04,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:26:04,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:26:04,017 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:26:04,017 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:26:04,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 20:26:04,907 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:26:05,096 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:26:05,096 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 20:26:05,104 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b710011da/45b569b0eee84cc0b92ba46751adf605/FLAG8aacdf54d [2022-12-05 20:26:05,115 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b710011da/45b569b0eee84cc0b92ba46751adf605 [2022-12-05 20:26:05,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:26:05,117 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:26:05,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:26:05,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:26:05,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:26:05,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:26:05" (1/1) ... [2022-12-05 20:26:05,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e4267ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:05, skipping insertion in model container [2022-12-05 20:26:05,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:26:05" (1/1) ... [2022-12-05 20:26:05,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:26:05,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:26:05,260 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/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2022-12-05 20:26:05,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,399 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:26:05,408 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:26:05,419 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/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2022-12-05 20:26:05,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,452 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:05,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:05,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:26:05,489 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:26:05,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:05 WrapperNode [2022-12-05 20:26:05,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:26:05,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:26:05,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:26:05,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:26:05,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:05" (1/1) ... [2022-12-05 20:26:05,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:05" (1/1) ... [2022-12-05 20:26:05,534 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2022-12-05 20:26:05,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:26:05,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:26:05,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:26:05,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:26:05,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:05" (1/1) ... [2022-12-05 20:26:05,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:05" (1/1) ... [2022-12-05 20:26:05,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:05" (1/1) ... [2022-12-05 20:26:05,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:05" (1/1) ... [2022-12-05 20:26:05,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:05" (1/1) ... [2022-12-05 20:26:05,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:05" (1/1) ... [2022-12-05 20:26:05,565 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:05" (1/1) ... [2022-12-05 20:26:05,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:05" (1/1) ... [2022-12-05 20:26:05,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:26:05,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:26:05,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:26:05,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:26:05,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:05" (1/1) ... [2022-12-05 20:26:05,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:26:05,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:26:05,637 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) [2022-12-05 20:26:05,669 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 [2022-12-05 20:26:05,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:26:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 20:26:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:26:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:26:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:26:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-05 20:26:05,685 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-05 20:26:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-05 20:26:05,685 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-05 20:26:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-05 20:26:05,685 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-05 20:26:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:26:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 20:26:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:26:05,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:26:05,687 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:26:05,771 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:26:05,773 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:26:05,940 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:26:05,945 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:26:05,945 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 20:26:05,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:26:05 BoogieIcfgContainer [2022-12-05 20:26:05,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:26:05,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:26:05,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:26:05,950 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:26:05,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:26:05" (1/3) ... [2022-12-05 20:26:05,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19958c8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:26:05, skipping insertion in model container [2022-12-05 20:26:05,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:05" (2/3) ... [2022-12-05 20:26:05,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19958c8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:26:05, skipping insertion in model container [2022-12-05 20:26:05,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:26:05" (3/3) ... [2022-12-05 20:26:05,952 INFO L112 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 20:26:05,973 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:26:05,973 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 20:26:05,973 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:26:06,036 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 20:26:06,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 86 transitions, 187 flow [2022-12-05 20:26:06,115 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-12-05 20:26:06,116 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:26:06,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-05 20:26:06,120 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 86 transitions, 187 flow [2022-12-05 20:26:06,124 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 71 transitions, 151 flow [2022-12-05 20:26:06,126 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:26:06,149 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 71 transitions, 151 flow [2022-12-05 20:26:06,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 71 transitions, 151 flow [2022-12-05 20:26:06,169 INFO L130 PetriNetUnfolder]: 1/71 cut-off events. [2022-12-05 20:26:06,169 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:26:06,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 1/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-05 20:26:06,171 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 71 transitions, 151 flow [2022-12-05 20:26:06,171 INFO L188 LiptonReduction]: Number of co-enabled transitions 1044 [2022-12-05 20:26:07,976 INFO L203 LiptonReduction]: Total number of compositions: 54 [2022-12-05 20:26:07,989 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:26:07,993 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@62e00663, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:26:07,993 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-05 20:26:07,996 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2022-12-05 20:26:07,996 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:26:07,996 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:26:07,997 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:26:07,997 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)] === [2022-12-05 20:26:08,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:26:08,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1508305714, now seen corresponding path program 1 times [2022-12-05 20:26:08,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:26:08,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293461059] [2022-12-05 20:26:08,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:26:08,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:26:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:26:08,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:26:08,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:26:08,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293461059] [2022-12-05 20:26:08,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293461059] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:26:08,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:26:08,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 20:26:08,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251677586] [2022-12-05 20:26:08,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:26:08,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:26:08,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:26:08,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:26:08,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:26:08,288 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-05 20:26:08,289 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2022-12-05 20:26:08,289 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:26:08,289 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-05 20:26:08,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:26:08,348 INFO L130 PetriNetUnfolder]: 143/271 cut-off events. [2022-12-05 20:26:08,348 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-05 20:26:08,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 271 events. 143/271 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1196 event pairs, 29 based on Foata normal form. 9/276 useless extension candidates. Maximal degree in co-relation 531. Up to 194 conditions per place. [2022-12-05 20:26:08,351 INFO L137 encePairwiseOnDemand]: 14/18 looper letters, 21 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2022-12-05 20:26:08,351 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 26 transitions, 113 flow [2022-12-05 20:26:08,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:26:08,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:26:08,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2022-12-05 20:26:08,359 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6481481481481481 [2022-12-05 20:26:08,360 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 3 states and 35 transitions. [2022-12-05 20:26:08,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 26 transitions, 113 flow [2022-12-05 20:26:08,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 26 transitions, 108 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 20:26:08,362 INFO L231 Difference]: Finished difference. Result has 27 places, 17 transitions, 48 flow [2022-12-05 20:26:08,364 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=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=27, PETRI_TRANSITIONS=17} [2022-12-05 20:26:08,366 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2022-12-05 20:26:08,366 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 17 transitions, 48 flow [2022-12-05 20:26:08,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2022-12-05 20:26:08,366 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:26:08,366 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:26:08,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:26:08,367 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)] === [2022-12-05 20:26:08,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:26:08,367 INFO L85 PathProgramCache]: Analyzing trace with hash -487163216, now seen corresponding path program 1 times [2022-12-05 20:26:08,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:26:08,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718976241] [2022-12-05 20:26:08,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:26:08,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:26:08,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:26:08,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:26:08,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:26:08,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718976241] [2022-12-05 20:26:08,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718976241] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:26:08,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:26:08,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:26:08,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566955481] [2022-12-05 20:26:08,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:26:08,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:26:08,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:26:08,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:26:08,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:26:08,457 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-05 20:26:08,457 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-12-05 20:26:08,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:26:08,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-05 20:26:08,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:26:08,519 INFO L130 PetriNetUnfolder]: 130/246 cut-off events. [2022-12-05 20:26:08,519 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-12-05 20:26:08,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 246 events. 130/246 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 992 event pairs, 50 based on Foata normal form. 6/248 useless extension candidates. Maximal degree in co-relation 551. Up to 135 conditions per place. [2022-12-05 20:26:08,521 INFO L137 encePairwiseOnDemand]: 15/18 looper letters, 17 selfloop transitions, 2 changer transitions 0/22 dead transitions. [2022-12-05 20:26:08,521 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 22 transitions, 99 flow [2022-12-05 20:26:08,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:26:08,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:26:08,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2022-12-05 20:26:08,523 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5370370370370371 [2022-12-05 20:26:08,523 INFO L175 Difference]: Start difference. First operand has 27 places, 17 transitions, 48 flow. Second operand 3 states and 29 transitions. [2022-12-05 20:26:08,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 22 transitions, 99 flow [2022-12-05 20:26:08,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 22 transitions, 93 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:26:08,524 INFO L231 Difference]: Finished difference. Result has 28 places, 17 transitions, 52 flow [2022-12-05 20:26:08,524 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=28, PETRI_TRANSITIONS=17} [2022-12-05 20:26:08,525 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2022-12-05 20:26:08,525 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 17 transitions, 52 flow [2022-12-05 20:26:08,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-12-05 20:26:08,525 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:26:08,525 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:26:08,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:26:08,525 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)] === [2022-12-05 20:26:08,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:26:08,526 INFO L85 PathProgramCache]: Analyzing trace with hash -971823805, now seen corresponding path program 1 times [2022-12-05 20:26:08,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:26:08,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747717078] [2022-12-05 20:26:08,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:26:08,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:26:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:26:08,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:26:08,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:26:08,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747717078] [2022-12-05 20:26:08,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747717078] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:26:08,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:26:08,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:26:08,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495961872] [2022-12-05 20:26:08,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:26:08,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:26:08,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:26:08,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:26:08,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:26:08,606 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 18 [2022-12-05 20:26:08,607 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 17 transitions, 52 flow. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-12-05 20:26:08,607 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:26:08,607 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 18 [2022-12-05 20:26:08,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:26:08,667 INFO L130 PetriNetUnfolder]: 241/420 cut-off events. [2022-12-05 20:26:08,667 INFO L131 PetriNetUnfolder]: For 99/99 co-relation queries the response was YES. [2022-12-05 20:26:08,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 988 conditions, 420 events. 241/420 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1967 event pairs, 28 based on Foata normal form. 16/429 useless extension candidates. Maximal degree in co-relation 976. Up to 167 conditions per place. [2022-12-05 20:26:08,669 INFO L137 encePairwiseOnDemand]: 12/18 looper letters, 31 selfloop transitions, 7 changer transitions 1/41 dead transitions. [2022-12-05 20:26:08,669 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 41 transitions, 197 flow [2022-12-05 20:26:08,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:26:08,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:26:08,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2022-12-05 20:26:08,671 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2022-12-05 20:26:08,671 INFO L175 Difference]: Start difference. First operand has 28 places, 17 transitions, 52 flow. Second operand 5 states and 51 transitions. [2022-12-05 20:26:08,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 41 transitions, 197 flow [2022-12-05 20:26:08,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 41 transitions, 189 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:26:08,672 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 98 flow [2022-12-05 20:26:08,672 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=98, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2022-12-05 20:26:08,673 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 6 predicate places. [2022-12-05 20:26:08,673 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 98 flow [2022-12-05 20:26:08,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-12-05 20:26:08,673 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:26:08,673 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:26:08,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:26:08,673 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)] === [2022-12-05 20:26:08,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:26:08,674 INFO L85 PathProgramCache]: Analyzing trace with hash 2078119797, now seen corresponding path program 2 times [2022-12-05 20:26:08,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:26:08,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598875336] [2022-12-05 20:26:08,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:26:08,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:26:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:26:08,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:26:08,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:26:08,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598875336] [2022-12-05 20:26:08,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598875336] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:26:08,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:26:08,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:26:08,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79836826] [2022-12-05 20:26:08,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:26:08,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:26:08,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:26:08,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:26:08,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:26:08,744 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 18 [2022-12-05 20:26:08,744 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-12-05 20:26:08,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:26:08,745 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 18 [2022-12-05 20:26:08,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:26:08,799 INFO L130 PetriNetUnfolder]: 287/520 cut-off events. [2022-12-05 20:26:08,799 INFO L131 PetriNetUnfolder]: For 505/512 co-relation queries the response was YES. [2022-12-05 20:26:08,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1440 conditions, 520 events. 287/520 cut-off events. For 505/512 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2503 event pairs, 77 based on Foata normal form. 22/538 useless extension candidates. Maximal degree in co-relation 1425. Up to 177 conditions per place. [2022-12-05 20:26:08,802 INFO L137 encePairwiseOnDemand]: 14/18 looper letters, 21 selfloop transitions, 5 changer transitions 6/35 dead transitions. [2022-12-05 20:26:08,802 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 35 transitions, 210 flow [2022-12-05 20:26:08,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:26:08,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:26:08,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2022-12-05 20:26:08,803 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4861111111111111 [2022-12-05 20:26:08,803 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 98 flow. Second operand 4 states and 35 transitions. [2022-12-05 20:26:08,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 35 transitions, 210 flow [2022-12-05 20:26:08,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 35 transitions, 206 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:26:08,806 INFO L231 Difference]: Finished difference. Result has 37 places, 23 transitions, 124 flow [2022-12-05 20:26:08,806 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=124, PETRI_PLACES=37, PETRI_TRANSITIONS=23} [2022-12-05 20:26:08,806 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2022-12-05 20:26:08,806 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 23 transitions, 124 flow [2022-12-05 20:26:08,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-12-05 20:26:08,807 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:26:08,807 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:26:08,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 20:26:08,807 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)] === [2022-12-05 20:26:08,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:26:08,807 INFO L85 PathProgramCache]: Analyzing trace with hash -2838111, now seen corresponding path program 1 times [2022-12-05 20:26:08,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:26:08,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429119089] [2022-12-05 20:26:08,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:26:08,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:26:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:26:08,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:26:08,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:26:08,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429119089] [2022-12-05 20:26:08,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429119089] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:26:08,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:26:08,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:26:08,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794845076] [2022-12-05 20:26:08,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:26:08,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:26:08,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:26:08,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:26:08,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:26:08,894 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-05 20:26:08,895 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 23 transitions, 124 flow. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2022-12-05 20:26:08,895 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:26:08,895 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-05 20:26:08,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:26:08,939 INFO L130 PetriNetUnfolder]: 190/379 cut-off events. [2022-12-05 20:26:08,939 INFO L131 PetriNetUnfolder]: For 462/469 co-relation queries the response was YES. [2022-12-05 20:26:08,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1084 conditions, 379 events. 190/379 cut-off events. For 462/469 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1877 event pairs, 86 based on Foata normal form. 10/386 useless extension candidates. Maximal degree in co-relation 1066. Up to 297 conditions per place. [2022-12-05 20:26:08,941 INFO L137 encePairwiseOnDemand]: 15/18 looper letters, 22 selfloop transitions, 3 changer transitions 1/30 dead transitions. [2022-12-05 20:26:08,941 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 30 transitions, 203 flow [2022-12-05 20:26:08,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:26:08,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:26:08,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2022-12-05 20:26:08,942 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5740740740740741 [2022-12-05 20:26:08,942 INFO L175 Difference]: Start difference. First operand has 37 places, 23 transitions, 124 flow. Second operand 3 states and 31 transitions. [2022-12-05 20:26:08,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 30 transitions, 203 flow [2022-12-05 20:26:08,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 30 transitions, 190 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-12-05 20:26:08,944 INFO L231 Difference]: Finished difference. Result has 37 places, 22 transitions, 115 flow [2022-12-05 20:26:08,944 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=115, PETRI_PLACES=37, PETRI_TRANSITIONS=22} [2022-12-05 20:26:08,945 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2022-12-05 20:26:08,945 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 22 transitions, 115 flow [2022-12-05 20:26:08,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2022-12-05 20:26:08,945 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:26:08,945 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:26:08,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 20:26:08,945 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:26:08,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:26:08,946 INFO L85 PathProgramCache]: Analyzing trace with hash -86117195, now seen corresponding path program 1 times [2022-12-05 20:26:08,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:26:08,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514173352] [2022-12-05 20:26:08,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:26:08,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:26:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:26:09,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:26:09,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:26:09,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514173352] [2022-12-05 20:26:09,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514173352] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:26:09,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:26:09,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:26:09,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468695482] [2022-12-05 20:26:09,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:26:09,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:26:09,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:26:09,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:26:09,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:26:09,020 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 18 [2022-12-05 20:26:09,020 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 22 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2022-12-05 20:26:09,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:26:09,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 18 [2022-12-05 20:26:09,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:26:09,064 INFO L130 PetriNetUnfolder]: 140/268 cut-off events. [2022-12-05 20:26:09,064 INFO L131 PetriNetUnfolder]: For 658/664 co-relation queries the response was YES. [2022-12-05 20:26:09,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 268 events. 140/268 cut-off events. For 658/664 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1028 event pairs, 52 based on Foata normal form. 20/280 useless extension candidates. Maximal degree in co-relation 777. Up to 117 conditions per place. [2022-12-05 20:26:09,065 INFO L137 encePairwiseOnDemand]: 14/18 looper letters, 17 selfloop transitions, 3 changer transitions 8/30 dead transitions. [2022-12-05 20:26:09,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 30 transitions, 190 flow [2022-12-05 20:26:09,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:26:09,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:26:09,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2022-12-05 20:26:09,067 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2022-12-05 20:26:09,067 INFO L175 Difference]: Start difference. First operand has 37 places, 22 transitions, 115 flow. Second operand 4 states and 33 transitions. [2022-12-05 20:26:09,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 30 transitions, 190 flow [2022-12-05 20:26:09,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 166 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-12-05 20:26:09,070 INFO L231 Difference]: Finished difference. Result has 37 places, 17 transitions, 76 flow [2022-12-05 20:26:09,070 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=32, 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=4, PETRI_FLOW=76, PETRI_PLACES=37, PETRI_TRANSITIONS=17} [2022-12-05 20:26:09,072 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2022-12-05 20:26:09,073 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 17 transitions, 76 flow [2022-12-05 20:26:09,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2022-12-05 20:26:09,077 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:26:09,077 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:26:09,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 20:26:09,077 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:26:09,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:26:09,077 INFO L85 PathProgramCache]: Analyzing trace with hash -23352979, now seen corresponding path program 1 times [2022-12-05 20:26:09,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:26:09,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517728759] [2022-12-05 20:26:09,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:26:09,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:26:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:26:09,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:26:09,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:26:09,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517728759] [2022-12-05 20:26:09,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517728759] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:26:09,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:26:09,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:26:09,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998577778] [2022-12-05 20:26:09,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:26:09,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:26:09,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:26:09,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:26:09,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:26:09,170 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 18 [2022-12-05 20:26:09,170 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 17 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2022-12-05 20:26:09,171 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:26:09,171 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 18 [2022-12-05 20:26:09,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:26:09,197 INFO L130 PetriNetUnfolder]: 46/93 cut-off events. [2022-12-05 20:26:09,197 INFO L131 PetriNetUnfolder]: For 180/180 co-relation queries the response was YES. [2022-12-05 20:26:09,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 93 events. 46/93 cut-off events. For 180/180 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 213 event pairs, 22 based on Foata normal form. 12/101 useless extension candidates. Maximal degree in co-relation 250. Up to 49 conditions per place. [2022-12-05 20:26:09,198 INFO L137 encePairwiseOnDemand]: 15/18 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2022-12-05 20:26:09,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 19 transitions, 104 flow [2022-12-05 20:26:09,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:26:09,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:26:09,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2022-12-05 20:26:09,199 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.375 [2022-12-05 20:26:09,199 INFO L175 Difference]: Start difference. First operand has 37 places, 17 transitions, 76 flow. Second operand 4 states and 27 transitions. [2022-12-05 20:26:09,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 19 transitions, 104 flow [2022-12-05 20:26:09,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 19 transitions, 78 flow, removed 2 selfloop flow, removed 11 redundant places. [2022-12-05 20:26:09,200 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2022-12-05 20:26:09,200 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2022-12-05 20:26:09,200 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2022-12-05 20:26:09,200 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2022-12-05 20:26:09,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2022-12-05 20:26:09,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-05 20:26:09,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-05 20:26:09,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-05 20:26:09,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-05 20:26:09,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 20:26:09,203 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-12-05 20:26:09,205 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:26:09,205 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:26:09,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:26:09 BasicIcfg [2022-12-05 20:26:09,213 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:26:09,214 INFO L158 Benchmark]: Toolchain (without parser) took 4096.24ms. Allocated memory was 179.3MB in the beginning and 220.2MB in the end (delta: 40.9MB). Free memory was 153.3MB in the beginning and 87.5MB in the end (delta: 65.9MB). Peak memory consumption was 107.8MB. Max. memory is 8.0GB. [2022-12-05 20:26:09,214 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 179.3MB. Free memory is still 155.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:26:09,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.20ms. Allocated memory is still 179.3MB. Free memory was 153.3MB in the beginning and 129.8MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-05 20:26:09,215 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.95ms. Allocated memory is still 179.3MB. Free memory was 129.8MB in the beginning and 127.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:26:09,215 INFO L158 Benchmark]: Boogie Preprocessor took 32.19ms. Allocated memory is still 179.3MB. Free memory was 127.7MB in the beginning and 126.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 20:26:09,215 INFO L158 Benchmark]: RCFGBuilder took 379.22ms. Allocated memory is still 179.3MB. Free memory was 126.6MB in the beginning and 113.0MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-05 20:26:09,217 INFO L158 Benchmark]: TraceAbstraction took 3264.97ms. Allocated memory was 179.3MB in the beginning and 220.2MB in the end (delta: 40.9MB). Free memory was 111.9MB in the beginning and 87.5MB in the end (delta: 24.4MB). Peak memory consumption was 65.9MB. Max. memory is 8.0GB. [2022-12-05 20:26:09,218 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 179.3MB. Free memory is still 155.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 372.20ms. Allocated memory is still 179.3MB. Free memory was 153.3MB in the beginning and 129.8MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.95ms. Allocated memory is still 179.3MB. Free memory was 129.8MB in the beginning and 127.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.19ms. Allocated memory is still 179.3MB. Free memory was 127.7MB in the beginning and 126.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 379.22ms. Allocated memory is still 179.3MB. Free memory was 126.6MB in the beginning and 113.0MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3264.97ms. Allocated memory was 179.3MB in the beginning and 220.2MB in the end (delta: 40.9MB). Free memory was 111.9MB in the beginning and 87.5MB in the end (delta: 24.4MB). Peak memory consumption was 65.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 80 PlacesBefore, 27 PlacesAfterwards, 71 TransitionsBefore, 18 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 21 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 798, independent: 763, independent conditional: 763, independent unconditional: 0, dependent: 35, dependent conditional: 35, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 798, independent: 763, independent conditional: 0, independent unconditional: 763, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 798, independent: 763, independent conditional: 0, independent unconditional: 763, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 798, independent: 763, independent conditional: 0, independent unconditional: 763, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 666, independent: 639, independent conditional: 0, independent unconditional: 639, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 666, independent: 632, independent conditional: 0, independent unconditional: 632, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 34, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 62, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 798, independent: 124, independent conditional: 0, independent unconditional: 124, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 666, unknown conditional: 0, unknown unconditional: 666] , Statistics on independence cache: Total cache size (in pairs): 954, Positive cache size: 927, Positive conditional cache size: 0, Positive unconditional cache size: 927, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 109 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 124 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 124 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 193 IncrementalHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 5 mSDtfsCounter, 193 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=4, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 20:26:09,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...