/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_REDUNDANT_FLOW -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 12:00:41,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 12:00:41,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 12:00:41,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 12:00:41,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 12:00:41,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 12:00:41,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 12:00:41,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 12:00:41,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 12:00:41,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 12:00:41,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 12:00:41,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 12:00:41,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 12:00:41,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 12:00:41,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 12:00:41,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 12:00:41,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 12:00:41,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 12:00:41,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 12:00:41,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 12:00:41,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 12:00:41,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 12:00:41,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 12:00:41,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 12:00:41,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 12:00:41,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 12:00:41,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 12:00:41,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 12:00:41,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 12:00:41,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 12:00:41,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 12:00:41,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 12:00:41,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 12:00:41,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 12:00:41,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 12:00:41,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 12:00:41,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 12:00:41,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 12:00:41,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 12:00:41,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 12:00:41,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 12:00:41,394 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-12 12:00:41,426 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 12:00:41,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 12:00:41,427 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 12:00:41,427 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 12:00:41,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 12:00:41,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 12:00:41,428 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 12:00:41,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 12:00:41,428 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 12:00:41,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 12:00:41,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 12:00:41,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 12:00:41,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 12:00:41,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 12:00:41,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 12:00:41,429 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 12:00:41,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 12:00:41,430 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 12:00:41,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 12:00:41,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 12:00:41,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 12:00:41,430 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 12:00:41,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 12:00:41,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 12:00:41,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 12:00:41,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 12:00:41,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 12:00:41,431 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 12:00:41,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 12:00:41,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 12:00:41,432 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 12:00:41,432 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_REDUNDANT_FLOW [2022-12-12 12:00:41,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 12:00:41,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 12:00:41,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 12:00:41,773 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 12:00:41,775 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 12:00:41,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.i [2022-12-12 12:00:42,856 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 12:00:43,170 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 12:00:43,170 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.i [2022-12-12 12:00:43,193 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e3cd2734/e30f546112cc4afd9ad362789b784ddb/FLAG2934fc9c8 [2022-12-12 12:00:43,211 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e3cd2734/e30f546112cc4afd9ad362789b784ddb [2022-12-12 12:00:43,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 12:00:43,215 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 12:00:43,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 12:00:43,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 12:00:43,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 12:00:43,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:00:43" (1/1) ... [2022-12-12 12:00:43,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62881a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:43, skipping insertion in model container [2022-12-12 12:00:43,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:00:43" (1/1) ... [2022-12-12 12:00:43,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 12:00:43,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 12:00:43,430 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/safe012_tso.i[945,958] [2022-12-12 12:00:43,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 12:00:43,613 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 12:00:43,628 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/safe012_tso.i[945,958] [2022-12-12 12:00:43,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,667 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,667 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,667 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,668 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,668 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,668 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,668 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,668 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,669 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,674 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,674 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,674 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:43,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:43,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 12:00:43,721 INFO L208 MainTranslator]: Completed translation [2022-12-12 12:00:43,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:43 WrapperNode [2022-12-12 12:00:43,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 12:00:43,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 12:00:43,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 12:00:43,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 12:00:43,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:43" (1/1) ... [2022-12-12 12:00:43,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:43" (1/1) ... [2022-12-12 12:00:43,781 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2022-12-12 12:00:43,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 12:00:43,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 12:00:43,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 12:00:43,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 12:00:43,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:43" (1/1) ... [2022-12-12 12:00:43,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:43" (1/1) ... [2022-12-12 12:00:43,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:43" (1/1) ... [2022-12-12 12:00:43,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:43" (1/1) ... [2022-12-12 12:00:43,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:43" (1/1) ... [2022-12-12 12:00:43,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:43" (1/1) ... [2022-12-12 12:00:43,815 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:43" (1/1) ... [2022-12-12 12:00:43,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:43" (1/1) ... [2022-12-12 12:00:43,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 12:00:43,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 12:00:43,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 12:00:43,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 12:00:43,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:43" (1/1) ... [2022-12-12 12:00:43,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 12:00:43,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 12:00:43,860 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) [2022-12-12 12:00:43,887 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 [2022-12-12 12:00:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 12:00:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 12:00:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 12:00:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 12:00:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 12:00:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 12:00:43,911 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 12:00:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 12:00:43,911 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 12:00:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 12:00:43,911 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 12:00:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 12:00:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 12:00:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 12:00:43,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 12:00:43,913 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 12:00:44,047 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 12:00:44,049 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 12:00:44,236 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 12:00:44,242 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 12:00:44,242 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 12:00:44,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:00:44 BoogieIcfgContainer [2022-12-12 12:00:44,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 12:00:44,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 12:00:44,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 12:00:44,253 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 12:00:44,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 12:00:43" (1/3) ... [2022-12-12 12:00:44,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f11035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:00:44, skipping insertion in model container [2022-12-12 12:00:44,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:43" (2/3) ... [2022-12-12 12:00:44,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f11035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:00:44, skipping insertion in model container [2022-12-12 12:00:44,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:00:44" (3/3) ... [2022-12-12 12:00:44,255 INFO L112 eAbstractionObserver]: Analyzing ICFG safe012_tso.i [2022-12-12 12:00:44,272 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 12:00:44,272 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 12:00:44,272 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 12:00:44,321 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 12:00:44,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 86 transitions, 187 flow [2022-12-12 12:00:44,426 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-12-12 12:00:44,426 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 12:00:44,431 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. [2022-12-12 12:00:44,431 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 86 transitions, 187 flow [2022-12-12 12:00:44,437 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 71 transitions, 151 flow [2022-12-12 12:00:44,452 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 12:00:44,458 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;@6cbe868e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 12:00:44,460 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 12:00:44,491 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2022-12-12 12:00:44,491 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 12:00:44,492 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:00:44,492 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:00:44,493 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)] === [2022-12-12 12:00:44,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:00:44,498 INFO L85 PathProgramCache]: Analyzing trace with hash -2039717973, now seen corresponding path program 1 times [2022-12-12 12:00:44,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:00:44,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765911590] [2022-12-12 12:00:44,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:00:44,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:00:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:00:45,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:00:45,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:00:45,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765911590] [2022-12-12 12:00:45,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765911590] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:00:45,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:00:45,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 12:00:45,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344561747] [2022-12-12 12:00:45,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:00:45,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 12:00:45,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:00:45,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 12:00:45,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 12:00:45,474 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 86 [2022-12-12 12:00:45,480 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 71 transitions, 151 flow. Second operand has 7 states, 7 states have (on average 68.71428571428571) internal successors, (481), 7 states have internal predecessors, (481), 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) [2022-12-12 12:00:45,480 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:00:45,481 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 86 [2022-12-12 12:00:45,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:00:46,014 INFO L130 PetriNetUnfolder]: 50/189 cut-off events. [2022-12-12 12:00:46,014 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-12 12:00:46,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 189 events. 50/189 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 599 event pairs, 10 based on Foata normal form. 8/190 useless extension candidates. Maximal degree in co-relation 283. Up to 55 conditions per place. [2022-12-12 12:00:46,017 INFO L137 encePairwiseOnDemand]: 79/86 looper letters, 16 selfloop transitions, 2 changer transitions 19/92 dead transitions. [2022-12-12 12:00:46,017 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 92 transitions, 273 flow [2022-12-12 12:00:46,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-12 12:00:46,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-12 12:00:46,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 644 transitions. [2022-12-12 12:00:46,046 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8320413436692506 [2022-12-12 12:00:46,073 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 8 predicate places. [2022-12-12 12:00:46,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 92 transitions, 273 flow [2022-12-12 12:00:46,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 92 transitions, 260 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-12-12 12:00:46,080 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 92 transitions, 260 flow [2022-12-12 12:00:46,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.71428571428571) internal successors, (481), 7 states have internal predecessors, (481), 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) [2022-12-12 12:00:46,080 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:00:46,081 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:00:46,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 12:00:46,081 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)] === [2022-12-12 12:00:46,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:00:46,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1299479532, now seen corresponding path program 1 times [2022-12-12 12:00:46,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:00:46,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096053143] [2022-12-12 12:00:46,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:00:46,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:00:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:00:46,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:00:46,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:00:46,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096053143] [2022-12-12 12:00:46,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096053143] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:00:46,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:00:46,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 12:00:46,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225726444] [2022-12-12 12:00:46,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:00:46,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 12:00:46,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:00:46,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 12:00:46,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 12:00:46,616 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 86 [2022-12-12 12:00:46,616 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 92 transitions, 260 flow. Second operand has 7 states, 7 states have (on average 68.85714285714286) internal successors, (482), 7 states have internal predecessors, (482), 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) [2022-12-12 12:00:46,617 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:00:46,617 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 86 [2022-12-12 12:00:46,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:00:47,079 INFO L130 PetriNetUnfolder]: 54/266 cut-off events. [2022-12-12 12:00:47,079 INFO L131 PetriNetUnfolder]: For 17/41 co-relation queries the response was YES. [2022-12-12 12:00:47,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 543 conditions, 266 events. 54/266 cut-off events. For 17/41 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1108 event pairs, 2 based on Foata normal form. 4/263 useless extension candidates. Maximal degree in co-relation 509. Up to 60 conditions per place. [2022-12-12 12:00:47,099 INFO L137 encePairwiseOnDemand]: 78/86 looper letters, 15 selfloop transitions, 5 changer transitions 60/135 dead transitions. [2022-12-12 12:00:47,100 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 135 transitions, 592 flow [2022-12-12 12:00:47,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 12:00:47,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 12:00:47,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 711 transitions. [2022-12-12 12:00:47,109 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8267441860465117 [2022-12-12 12:00:47,128 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 14 predicate places. [2022-12-12 12:00:47,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 135 transitions, 592 flow [2022-12-12 12:00:47,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 135 transitions, 586 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-12-12 12:00:47,138 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 135 transitions, 586 flow [2022-12-12 12:00:47,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.85714285714286) internal successors, (482), 7 states have internal predecessors, (482), 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) [2022-12-12 12:00:47,139 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:00:47,139 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:00:47,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 12:00:47,140 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)] === [2022-12-12 12:00:47,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:00:47,140 INFO L85 PathProgramCache]: Analyzing trace with hash 778762157, now seen corresponding path program 1 times [2022-12-12 12:00:47,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:00:47,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795033810] [2022-12-12 12:00:47,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:00:47,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:00:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:00:47,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:00:47,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:00:47,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795033810] [2022-12-12 12:00:47,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795033810] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:00:47,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:00:47,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 12:00:47,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129932417] [2022-12-12 12:00:47,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:00:47,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 12:00:47,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:00:47,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 12:00:47,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-12 12:00:47,604 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 86 [2022-12-12 12:00:47,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 135 transitions, 586 flow. Second operand has 7 states, 7 states have (on average 70.71428571428571) internal successors, (495), 7 states have internal predecessors, (495), 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) [2022-12-12 12:00:47,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:00:47,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 86 [2022-12-12 12:00:47,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:00:47,885 INFO L130 PetriNetUnfolder]: 173/597 cut-off events. [2022-12-12 12:00:47,885 INFO L131 PetriNetUnfolder]: For 164/334 co-relation queries the response was YES. [2022-12-12 12:00:47,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1477 conditions, 597 events. 173/597 cut-off events. For 164/334 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3771 event pairs, 2 based on Foata normal form. 6/590 useless extension candidates. Maximal degree in co-relation 1441. Up to 131 conditions per place. [2022-12-12 12:00:47,923 INFO L137 encePairwiseOnDemand]: 78/86 looper letters, 13 selfloop transitions, 5 changer transitions 125/202 dead transitions. [2022-12-12 12:00:47,923 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 202 transitions, 1218 flow [2022-12-12 12:00:47,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 12:00:47,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 12:00:47,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 934 transitions. [2022-12-12 12:00:47,926 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8354203935599285 [2022-12-12 12:00:47,928 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 25 predicate places. [2022-12-12 12:00:47,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 202 transitions, 1218 flow [2022-12-12 12:00:47,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 202 transitions, 1210 flow, removed 4 selfloop flow, removed 0 redundant places. [2022-12-12 12:00:47,934 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 202 transitions, 1210 flow [2022-12-12 12:00:47,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.71428571428571) internal successors, (495), 7 states have internal predecessors, (495), 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) [2022-12-12 12:00:47,934 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:00:47,934 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:00:47,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 12:00:47,935 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)] === [2022-12-12 12:00:47,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:00:47,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1282699228, now seen corresponding path program 1 times [2022-12-12 12:00:47,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:00:47,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673630891] [2022-12-12 12:00:47,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:00:47,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:00:47,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:00:48,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:00:48,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:00:48,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673630891] [2022-12-12 12:00:48,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673630891] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:00:48,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:00:48,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 12:00:48,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548955019] [2022-12-12 12:00:48,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:00:48,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 12:00:48,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:00:48,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 12:00:48,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-12 12:00:48,158 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 86 [2022-12-12 12:00:48,159 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 202 transitions, 1210 flow. Second operand has 7 states, 7 states have (on average 70.71428571428571) internal successors, (495), 7 states have internal predecessors, (495), 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) [2022-12-12 12:00:48,159 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:00:48,159 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 86 [2022-12-12 12:00:48,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:00:48,482 INFO L130 PetriNetUnfolder]: 398/1014 cut-off events. [2022-12-12 12:00:48,482 INFO L131 PetriNetUnfolder]: For 737/1159 co-relation queries the response was YES. [2022-12-12 12:00:48,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3088 conditions, 1014 events. 398/1014 cut-off events. For 737/1159 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 6891 event pairs, 16 based on Foata normal form. 30/1024 useless extension candidates. Maximal degree in co-relation 3049. Up to 262 conditions per place. [2022-12-12 12:00:48,489 INFO L137 encePairwiseOnDemand]: 78/86 looper letters, 10 selfloop transitions, 4 changer transitions 232/302 dead transitions. [2022-12-12 12:00:48,490 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 302 transitions, 2388 flow [2022-12-12 12:00:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 12:00:48,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 12:00:48,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 933 transitions. [2022-12-12 12:00:48,493 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8345259391771019 [2022-12-12 12:00:48,494 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 37 predicate places. [2022-12-12 12:00:48,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 302 transitions, 2388 flow [2022-12-12 12:00:48,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 302 transitions, 2366 flow, removed 11 selfloop flow, removed 0 redundant places. [2022-12-12 12:00:48,501 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 302 transitions, 2366 flow [2022-12-12 12:00:48,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.71428571428571) internal successors, (495), 7 states have internal predecessors, (495), 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) [2022-12-12 12:00:48,502 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:00:48,502 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:00:48,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 12:00:48,503 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)] === [2022-12-12 12:00:48,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:00:48,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1722382284, now seen corresponding path program 1 times [2022-12-12 12:00:48,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:00:48,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087935003] [2022-12-12 12:00:48,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:00:48,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:00:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:00:48,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:00:48,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:00:48,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087935003] [2022-12-12 12:00:48,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087935003] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:00:48,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:00:48,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 12:00:48,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821226684] [2022-12-12 12:00:48,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:00:48,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 12:00:48,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:00:48,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 12:00:48,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-12 12:00:48,728 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 86 [2022-12-12 12:00:48,729 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 302 transitions, 2366 flow. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 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) [2022-12-12 12:00:48,729 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:00:48,729 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 86 [2022-12-12 12:00:48,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:00:49,268 INFO L130 PetriNetUnfolder]: 864/2114 cut-off events. [2022-12-12 12:00:49,269 INFO L131 PetriNetUnfolder]: For 960/1270 co-relation queries the response was YES. [2022-12-12 12:00:49,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5667 conditions, 2114 events. 864/2114 cut-off events. For 960/1270 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 17663 event pairs, 48 based on Foata normal form. 19/2015 useless extension candidates. Maximal degree in co-relation 5626. Up to 508 conditions per place. [2022-12-12 12:00:49,287 INFO L137 encePairwiseOnDemand]: 76/86 looper letters, 31 selfloop transitions, 17 changer transitions 138/283 dead transitions. [2022-12-12 12:00:49,287 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 283 transitions, 2062 flow [2022-12-12 12:00:49,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 12:00:49,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 12:00:49,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 738 transitions. [2022-12-12 12:00:49,290 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.858139534883721 [2022-12-12 12:00:49,292 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 46 predicate places. [2022-12-12 12:00:49,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 283 transitions, 2062 flow [2022-12-12 12:00:49,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 283 transitions, 2058 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-12 12:00:49,299 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 283 transitions, 2058 flow [2022-12-12 12:00:49,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 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) [2022-12-12 12:00:49,300 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:00:49,300 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:00:49,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 12:00:49,300 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)] === [2022-12-12 12:00:49,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:00:49,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1534137635, now seen corresponding path program 1 times [2022-12-12 12:00:49,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:00:49,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086218297] [2022-12-12 12:00:49,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:00:49,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:00:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:00:49,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:00:49,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:00:49,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086218297] [2022-12-12 12:00:49,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086218297] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:00:49,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:00:49,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 12:00:49,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818963254] [2022-12-12 12:00:49,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:00:49,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 12:00:49,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:00:49,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 12:00:49,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 12:00:49,753 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 86 [2022-12-12 12:00:49,753 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 283 transitions, 2058 flow. Second operand has 7 states, 7 states have (on average 70.57142857142857) internal successors, (494), 7 states have internal predecessors, (494), 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) [2022-12-12 12:00:49,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:00:49,754 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 86 [2022-12-12 12:00:49,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:00:50,225 INFO L130 PetriNetUnfolder]: 624/1586 cut-off events. [2022-12-12 12:00:50,226 INFO L131 PetriNetUnfolder]: For 667/1615 co-relation queries the response was YES. [2022-12-12 12:00:50,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4535 conditions, 1586 events. 624/1586 cut-off events. For 667/1615 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 13009 event pairs, 10 based on Foata normal form. 153/1633 useless extension candidates. Maximal degree in co-relation 4492. Up to 452 conditions per place. [2022-12-12 12:00:50,250 INFO L137 encePairwiseOnDemand]: 76/86 looper letters, 15 selfloop transitions, 9 changer transitions 148/228 dead transitions. [2022-12-12 12:00:50,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 228 transitions, 1536 flow [2022-12-12 12:00:50,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 12:00:50,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 12:00:50,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 960 transitions. [2022-12-12 12:00:50,266 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8586762075134168 [2022-12-12 12:00:50,269 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 57 predicate places. [2022-12-12 12:00:50,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 228 transitions, 1536 flow [2022-12-12 12:00:50,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 228 transitions, 1350 flow, removed 69 selfloop flow, removed 10 redundant places. [2022-12-12 12:00:50,276 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 228 transitions, 1350 flow [2022-12-12 12:00:50,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.57142857142857) internal successors, (494), 7 states have internal predecessors, (494), 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) [2022-12-12 12:00:50,277 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:00:50,277 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:00:50,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 12:00:50,277 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)] === [2022-12-12 12:00:50,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:00:50,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1469997774, now seen corresponding path program 1 times [2022-12-12 12:00:50,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:00:50,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371553606] [2022-12-12 12:00:50,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:00:50,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:00:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:00:50,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:00:50,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:00:50,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371553606] [2022-12-12 12:00:50,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371553606] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:00:50,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:00:50,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-12 12:00:50,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521670508] [2022-12-12 12:00:50,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:00:50,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 12:00:50,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:00:50,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 12:00:50,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-12 12:00:50,614 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 86 [2022-12-12 12:00:50,628 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 228 transitions, 1350 flow. Second operand has 8 states, 8 states have (on average 70.5) internal successors, (564), 8 states have internal predecessors, (564), 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) [2022-12-12 12:00:50,628 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:00:50,628 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 86 [2022-12-12 12:00:50,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:00:51,086 INFO L130 PetriNetUnfolder]: 540/1416 cut-off events. [2022-12-12 12:00:51,086 INFO L131 PetriNetUnfolder]: For 662/1145 co-relation queries the response was YES. [2022-12-12 12:00:51,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4635 conditions, 1416 events. 540/1416 cut-off events. For 662/1145 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 11862 event pairs, 1 based on Foata normal form. 138/1493 useless extension candidates. Maximal degree in co-relation 4591. Up to 289 conditions per place. [2022-12-12 12:00:51,118 INFO L137 encePairwiseOnDemand]: 76/86 looper letters, 9 selfloop transitions, 12 changer transitions 117/196 dead transitions. [2022-12-12 12:00:51,118 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 196 transitions, 1346 flow [2022-12-12 12:00:51,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-12 12:00:51,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-12 12:00:51,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1166 transitions. [2022-12-12 12:00:51,122 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8473837209302325 [2022-12-12 12:00:51,122 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 42 predicate places. [2022-12-12 12:00:51,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 196 transitions, 1346 flow [2022-12-12 12:00:51,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 196 transitions, 1178 flow, removed 57 selfloop flow, removed 7 redundant places. [2022-12-12 12:00:51,139 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 196 transitions, 1178 flow [2022-12-12 12:00:51,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 70.5) internal successors, (564), 8 states have internal predecessors, (564), 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) [2022-12-12 12:00:51,140 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:00:51,140 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:00:51,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 12:00:51,172 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 12:00:51,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:00:51,172 INFO L85 PathProgramCache]: Analyzing trace with hash 949804623, now seen corresponding path program 1 times [2022-12-12 12:00:51,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:00:51,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452754850] [2022-12-12 12:00:51,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:00:51,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:00:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:00:51,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:00:51,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:00:51,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452754850] [2022-12-12 12:00:51,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452754850] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:00:51,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:00:51,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 12:00:51,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264008888] [2022-12-12 12:00:51,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:00:51,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 12:00:51,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:00:51,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 12:00:51,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-12 12:00:51,602 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 86 [2022-12-12 12:00:51,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 196 transitions, 1178 flow. Second operand has 7 states, 7 states have (on average 67.42857142857143) internal successors, (472), 7 states have internal predecessors, (472), 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) [2022-12-12 12:00:51,604 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:00:51,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 86 [2022-12-12 12:00:51,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:00:52,193 INFO L130 PetriNetUnfolder]: 877/2278 cut-off events. [2022-12-12 12:00:52,194 INFO L131 PetriNetUnfolder]: For 819/1107 co-relation queries the response was YES. [2022-12-12 12:00:52,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7025 conditions, 2278 events. 877/2278 cut-off events. For 819/1107 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 20834 event pairs, 2 based on Foata normal form. 17/2223 useless extension candidates. Maximal degree in co-relation 6977. Up to 481 conditions per place. [2022-12-12 12:00:52,206 INFO L137 encePairwiseOnDemand]: 75/86 looper letters, 0 selfloop transitions, 0 changer transitions 224/224 dead transitions. [2022-12-12 12:00:52,206 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 224 transitions, 1576 flow [2022-12-12 12:00:52,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 12:00:52,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 12:00:52,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 553 transitions. [2022-12-12 12:00:52,208 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8037790697674418 [2022-12-12 12:00:52,209 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 40 predicate places. [2022-12-12 12:00:52,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 224 transitions, 1576 flow [2022-12-12 12:00:52,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 224 transitions, 1550 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-12-12 12:00:52,217 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 224 transitions, 1550 flow [2022-12-12 12:00:52,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.42857142857143) internal successors, (472), 7 states have internal predecessors, (472), 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) [2022-12-12 12:00:52,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 12:00:52,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 12:00:52,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 12:00:52,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 12:00:52,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 12:00:52,225 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:00:52,236 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 12:00:52,236 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 12:00:52,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 12:00:52 BasicIcfg [2022-12-12 12:00:52,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 12:00:52,245 INFO L158 Benchmark]: Toolchain (without parser) took 9029.34ms. Allocated memory was 202.4MB in the beginning and 418.4MB in the end (delta: 216.0MB). Free memory was 176.9MB in the beginning and 254.9MB in the end (delta: -78.0MB). Peak memory consumption was 139.3MB. Max. memory is 8.0GB. [2022-12-12 12:00:52,245 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 202.4MB. Free memory is still 178.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 12:00:52,245 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.40ms. Allocated memory is still 202.4MB. Free memory was 176.7MB in the beginning and 153.0MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-12 12:00:52,245 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.97ms. Allocated memory is still 202.4MB. Free memory was 153.0MB in the beginning and 151.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 12:00:52,245 INFO L158 Benchmark]: Boogie Preprocessor took 34.82ms. Allocated memory is still 202.4MB. Free memory was 151.0MB in the beginning and 149.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 12:00:52,245 INFO L158 Benchmark]: RCFGBuilder took 429.48ms. Allocated memory is still 202.4MB. Free memory was 149.4MB in the beginning and 135.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-12 12:00:52,246 INFO L158 Benchmark]: TraceAbstraction took 7994.11ms. Allocated memory was 202.4MB in the beginning and 418.4MB in the end (delta: 216.0MB). Free memory was 134.2MB in the beginning and 254.9MB in the end (delta: -120.7MB). Peak memory consumption was 96.4MB. Max. memory is 8.0GB. [2022-12-12 12:00:52,247 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 202.4MB. Free memory is still 178.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 505.40ms. Allocated memory is still 202.4MB. Free memory was 176.7MB in the beginning and 153.0MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.97ms. Allocated memory is still 202.4MB. Free memory was 153.0MB in the beginning and 151.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.82ms. Allocated memory is still 202.4MB. Free memory was 151.0MB in the beginning and 149.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 429.48ms. Allocated memory is still 202.4MB. Free memory was 149.4MB in the beginning and 135.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 7994.11ms. Allocated memory was 202.4MB in the beginning and 418.4MB in the end (delta: 216.0MB). Free memory was 134.2MB in the beginning and 254.9MB in the end (delta: -120.7MB). Peak memory consumption was 96.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 109 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.1s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 380 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 380 mSDsluCounter, 356 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 274 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 481 IncrementalHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 82 mSDtfsCounter, 481 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2366occurred in iteration=4, InterpolantAutomatonStates: 92, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 433 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 460 NumberOfCodeBlocks, 460 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 452 ConstructedInterpolants, 0 QuantifiedInterpolants, 1732 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2022-12-12 12:00:52,272 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...