/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 21:02:59,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 21:02:59,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 21:02:59,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 21:02:59,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 21:02:59,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 21:02:59,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 21:02:59,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 21:02:59,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 21:02:59,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 21:02:59,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 21:02:59,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 21:02:59,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 21:02:59,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 21:02:59,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 21:02:59,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 21:02:59,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 21:02:59,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 21:02:59,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 21:02:59,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 21:02:59,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 21:02:59,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 21:02:59,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 21:02:59,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 21:02:59,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 21:02:59,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 21:02:59,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 21:02:59,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 21:02:59,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 21:02:59,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 21:02:59,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 21:02:59,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 21:02:59,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 21:02:59,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 21:02:59,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 21:02:59,340 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 21:02:59,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 21:02:59,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 21:02:59,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 21:02:59,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 21:02:59,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 21:02:59,344 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 [2022-12-11 21:02:59,377 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 21:02:59,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 21:02:59,379 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 21:02:59,379 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 21:02:59,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 21:02:59,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 21:02:59,381 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 21:02:59,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 21:02:59,381 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 21:02:59,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 21:02:59,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 21:02:59,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 21:02:59,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 21:02:59,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 21:02:59,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 21:02:59,383 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 21:02:59,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 21:02:59,383 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 21:02:59,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 21:02:59,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 21:02:59,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 21:02:59,384 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 21:02:59,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 21:02:59,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:02:59,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 21:02:59,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 21:02:59,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 21:02:59,385 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 21:02:59,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 21:02:59,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 21:02:59,385 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 21:02:59,385 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-11 21:02:59,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 21:02:59,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 21:02:59,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 21:02:59,766 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 21:02:59,767 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 21:02:59,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.i [2022-12-11 21:03:00,956 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 21:03:01,211 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 21:03:01,212 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.i [2022-12-11 21:03:01,222 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/754934f67/47ee766d1519461586c031db26c6d97a/FLAG72e421e21 [2022-12-11 21:03:01,238 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/754934f67/47ee766d1519461586c031db26c6d97a [2022-12-11 21:03:01,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 21:03:01,241 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 21:03:01,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 21:03:01,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 21:03:01,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 21:03:01,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:03:01" (1/1) ... [2022-12-11 21:03:01,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f8ad28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:01, skipping insertion in model container [2022-12-11 21:03:01,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:03:01" (1/1) ... [2022-12-11 21:03:01,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 21:03:01,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 21:03:01,481 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/safe002_tso.i[945,958] [2022-12-11 21:03:01,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,655 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,655 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,655 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,674 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:03:01,688 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 21:03:01,701 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/safe002_tso.i[945,958] [2022-12-11 21:03:01,732 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,733 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,733 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,733 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,734 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,734 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,734 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,734 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,735 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,735 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,735 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,736 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,736 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,736 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,736 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,737 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,737 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,747 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:03:01,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:03:01,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:03:01,791 INFO L208 MainTranslator]: Completed translation [2022-12-11 21:03:01,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:01 WrapperNode [2022-12-11 21:03:01,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 21:03:01,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 21:03:01,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 21:03:01,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 21:03:01,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:01" (1/1) ... [2022-12-11 21:03:01,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:01" (1/1) ... [2022-12-11 21:03:01,857 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-11 21:03:01,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 21:03:01,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 21:03:01,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 21:03:01,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 21:03:01,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:01" (1/1) ... [2022-12-11 21:03:01,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:01" (1/1) ... [2022-12-11 21:03:01,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:01" (1/1) ... [2022-12-11 21:03:01,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:01" (1/1) ... [2022-12-11 21:03:01,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:01" (1/1) ... [2022-12-11 21:03:01,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:01" (1/1) ... [2022-12-11 21:03:01,892 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:01" (1/1) ... [2022-12-11 21:03:01,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:01" (1/1) ... [2022-12-11 21:03:01,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 21:03:01,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 21:03:01,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 21:03:01,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 21:03:01,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:01" (1/1) ... [2022-12-11 21:03:01,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:03:01,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 21:03:01,941 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) [2022-12-11 21:03:01,965 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 [2022-12-11 21:03:01,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 21:03:01,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 21:03:01,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 21:03:01,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 21:03:01,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 21:03:01,985 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-11 21:03:01,985 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-11 21:03:01,985 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-11 21:03:01,985 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-11 21:03:01,985 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-11 21:03:01,985 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-11 21:03:01,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 21:03:01,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 21:03:01,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 21:03:01,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 21:03:01,988 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 21:03:02,168 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 21:03:02,169 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 21:03:02,347 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 21:03:02,354 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 21:03:02,354 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 21:03:02,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:03:02 BoogieIcfgContainer [2022-12-11 21:03:02,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 21:03:02,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 21:03:02,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 21:03:02,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 21:03:02,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 09:03:01" (1/3) ... [2022-12-11 21:03:02,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a70e893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:03:02, skipping insertion in model container [2022-12-11 21:03:02,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:03:01" (2/3) ... [2022-12-11 21:03:02,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a70e893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:03:02, skipping insertion in model container [2022-12-11 21:03:02,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:03:02" (3/3) ... [2022-12-11 21:03:02,367 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_tso.i [2022-12-11 21:03:02,384 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 21:03:02,384 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 21:03:02,384 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 21:03:02,441 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 21:03:02,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2022-12-11 21:03:02,536 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-12-11 21:03:02,536 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 21:03:02,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-11 21:03:02,541 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2022-12-11 21:03:02,544 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2022-12-11 21:03:02,553 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 21:03:02,559 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;@53b231f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 21:03:02,559 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 21:03:02,578 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2022-12-11 21:03:02,578 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 21:03:02,579 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:03:02,579 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] [2022-12-11 21:03:02,580 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)] === [2022-12-11 21:03:02,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:03:02,585 INFO L85 PathProgramCache]: Analyzing trace with hash 2225101, now seen corresponding path program 1 times [2022-12-11 21:03:02,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:03:02,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320741696] [2022-12-11 21:03:02,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:03:02,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:03:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:03:03,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:03:03,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:03:03,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320741696] [2022-12-11 21:03:03,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320741696] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:03:03,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:03:03,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 21:03:03,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159805517] [2022-12-11 21:03:03,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:03:03,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 21:03:03,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:03:03,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 21:03:03,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 21:03:03,516 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-11 21:03:03,519 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 70 transitions, 149 flow. Second operand has 6 states, 6 states have (on average 65.16666666666667) internal successors, (391), 6 states have internal predecessors, (391), 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) [2022-12-11 21:03:03,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:03:03,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-11 21:03:03,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:03:03,873 INFO L130 PetriNetUnfolder]: 371/1041 cut-off events. [2022-12-11 21:03:03,873 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-12-11 21:03:03,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1707 conditions, 1041 events. 371/1041 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 6999 event pairs, 57 based on Foata normal form. 33/1041 useless extension candidates. Maximal degree in co-relation 1672. Up to 217 conditions per place. [2022-12-11 21:03:03,882 INFO L137 encePairwiseOnDemand]: 72/85 looper letters, 21 selfloop transitions, 8 changer transitions 37/117 dead transitions. [2022-12-11 21:03:03,882 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 117 transitions, 381 flow [2022-12-11 21:03:03,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 21:03:03,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 21:03:03,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 637 transitions. [2022-12-11 21:03:03,897 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8326797385620915 [2022-12-11 21:03:03,901 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 8 predicate places. [2022-12-11 21:03:03,901 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 117 transitions, 381 flow [2022-12-11 21:03:03,906 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 80 transitions, 233 flow [2022-12-11 21:03:03,907 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 80 transitions, 233 flow [2022-12-11 21:03:03,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.16666666666667) internal successors, (391), 6 states have internal predecessors, (391), 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) [2022-12-11 21:03:03,908 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:03:03,908 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] [2022-12-11 21:03:03,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 21:03:03,908 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)] === [2022-12-11 21:03:03,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:03:03,909 INFO L85 PathProgramCache]: Analyzing trace with hash -167567346, now seen corresponding path program 1 times [2022-12-11 21:03:03,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:03:03,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302197396] [2022-12-11 21:03:03,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:03:03,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:03:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:03:04,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:03:04,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:03:04,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302197396] [2022-12-11 21:03:04,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302197396] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:03:04,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:03:04,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:03:04,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128546064] [2022-12-11 21:03:04,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:03:04,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:03:04,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:03:04,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:03:04,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:03:04,175 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-11 21:03:04,176 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 80 transitions, 233 flow. Second operand has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:04,176 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:03:04,176 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-11 21:03:04,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:03:04,515 INFO L130 PetriNetUnfolder]: 219/723 cut-off events. [2022-12-11 21:03:04,515 INFO L131 PetriNetUnfolder]: For 62/204 co-relation queries the response was YES. [2022-12-11 21:03:04,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1571 conditions, 723 events. 219/723 cut-off events. For 62/204 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4451 event pairs, 3 based on Foata normal form. 24/728 useless extension candidates. Maximal degree in co-relation 1529. Up to 257 conditions per place. [2022-12-11 21:03:04,523 INFO L137 encePairwiseOnDemand]: 73/85 looper letters, 25 selfloop transitions, 9 changer transitions 46/131 dead transitions. [2022-12-11 21:03:04,523 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 131 transitions, 597 flow [2022-12-11 21:03:04,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 21:03:04,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 21:03:04,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 888 transitions. [2022-12-11 21:03:04,526 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8036199095022625 [2022-12-11 21:03:04,527 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 14 predicate places. [2022-12-11 21:03:04,527 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 131 transitions, 597 flow [2022-12-11 21:03:04,532 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 85 transitions, 321 flow [2022-12-11 21:03:04,533 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 85 transitions, 321 flow [2022-12-11 21:03:04,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:04,533 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:03:04,533 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] [2022-12-11 21:03:04,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 21:03:04,534 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)] === [2022-12-11 21:03:04,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:03:04,535 INFO L85 PathProgramCache]: Analyzing trace with hash 700747746, now seen corresponding path program 1 times [2022-12-11 21:03:04,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:03:04,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47403799] [2022-12-11 21:03:04,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:03:04,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:03:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:03:04,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:03:04,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:03:04,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47403799] [2022-12-11 21:03:04,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47403799] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:03:04,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:03:04,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:03:04,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119944941] [2022-12-11 21:03:04,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:03:04,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:03:04,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:03:04,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:03:04,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:03:04,770 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-11 21:03:04,770 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 85 transitions, 321 flow. Second operand has 7 states, 7 states have (on average 65.14285714285714) internal successors, (456), 7 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:04,770 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:03:04,771 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-11 21:03:04,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:03:04,979 INFO L130 PetriNetUnfolder]: 135/482 cut-off events. [2022-12-11 21:03:04,979 INFO L131 PetriNetUnfolder]: For 143/433 co-relation queries the response was YES. [2022-12-11 21:03:04,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1335 conditions, 482 events. 135/482 cut-off events. For 143/433 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2562 event pairs, 3 based on Foata normal form. 16/482 useless extension candidates. Maximal degree in co-relation 1286. Up to 186 conditions per place. [2022-12-11 21:03:04,983 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 29 selfloop transitions, 10 changer transitions 31/121 dead transitions. [2022-12-11 21:03:04,983 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 121 transitions, 680 flow [2022-12-11 21:03:04,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 21:03:04,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 21:03:04,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 879 transitions. [2022-12-11 21:03:04,986 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7954751131221719 [2022-12-11 21:03:04,986 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 17 predicate places. [2022-12-11 21:03:04,987 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 121 transitions, 680 flow [2022-12-11 21:03:04,990 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 90 transitions, 432 flow [2022-12-11 21:03:04,990 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 90 transitions, 432 flow [2022-12-11 21:03:04,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.14285714285714) internal successors, (456), 7 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:04,991 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:03:04,991 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] [2022-12-11 21:03:04,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 21:03:04,991 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)] === [2022-12-11 21:03:04,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:03:04,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1092527119, now seen corresponding path program 1 times [2022-12-11 21:03:04,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:03:04,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376528791] [2022-12-11 21:03:04,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:03:04,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:03:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:03:05,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:03:05,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:03:05,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376528791] [2022-12-11 21:03:05,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376528791] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:03:05,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:03:05,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 21:03:05,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027468439] [2022-12-11 21:03:05,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:03:05,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 21:03:05,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:03:05,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 21:03:05,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-11 21:03:05,229 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-11 21:03:05,230 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 90 transitions, 432 flow. Second operand has 8 states, 8 states have (on average 64.875) internal successors, (519), 8 states have internal predecessors, (519), 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) [2022-12-11 21:03:05,230 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:03:05,230 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-11 21:03:05,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:03:05,413 INFO L130 PetriNetUnfolder]: 112/409 cut-off events. [2022-12-11 21:03:05,414 INFO L131 PetriNetUnfolder]: For 266/857 co-relation queries the response was YES. [2022-12-11 21:03:05,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1365 conditions, 409 events. 112/409 cut-off events. For 266/857 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2054 event pairs, 1 based on Foata normal form. 16/409 useless extension candidates. Maximal degree in co-relation 1309. Up to 172 conditions per place. [2022-12-11 21:03:05,417 INFO L137 encePairwiseOnDemand]: 72/85 looper letters, 22 selfloop transitions, 13 changer transitions 55/141 dead transitions. [2022-12-11 21:03:05,417 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 141 transitions, 1026 flow [2022-12-11 21:03:05,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-11 21:03:05,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-11 21:03:05,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 751 transitions. [2022-12-11 21:03:05,420 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8032085561497326 [2022-12-11 21:03:05,420 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 18 predicate places. [2022-12-11 21:03:05,420 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 141 transitions, 1026 flow [2022-12-11 21:03:05,423 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 86 transitions, 476 flow [2022-12-11 21:03:05,423 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 86 transitions, 476 flow [2022-12-11 21:03:05,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 64.875) internal successors, (519), 8 states have internal predecessors, (519), 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) [2022-12-11 21:03:05,424 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:03:05,424 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] [2022-12-11 21:03:05,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 21:03:05,424 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)] === [2022-12-11 21:03:05,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:03:05,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1917851254, now seen corresponding path program 1 times [2022-12-11 21:03:05,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:03:05,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142827585] [2022-12-11 21:03:05,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:03:05,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:03:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:03:05,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:03:05,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:03:05,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142827585] [2022-12-11 21:03:05,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142827585] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:03:05,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:03:05,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:03:05,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872075482] [2022-12-11 21:03:05,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:03:05,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:03:05,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:03:05,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:03:05,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:03:05,581 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-11 21:03:05,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 86 transitions, 476 flow. Second operand has 7 states, 7 states have (on average 65.28571428571429) internal successors, (457), 7 states have internal predecessors, (457), 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) [2022-12-11 21:03:05,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:03:05,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-11 21:03:05,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:03:05,698 INFO L130 PetriNetUnfolder]: 37/222 cut-off events. [2022-12-11 21:03:05,699 INFO L131 PetriNetUnfolder]: For 341/694 co-relation queries the response was YES. [2022-12-11 21:03:05,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 730 conditions, 222 events. 37/222 cut-off events. For 341/694 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 804 event pairs, 0 based on Foata normal form. 20/234 useless extension candidates. Maximal degree in co-relation 667. Up to 75 conditions per place. [2022-12-11 21:03:05,700 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 27 selfloop transitions, 9 changer transitions 16/103 dead transitions. [2022-12-11 21:03:05,700 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 103 transitions, 750 flow [2022-12-11 21:03:05,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 21:03:05,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 21:03:05,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 673 transitions. [2022-12-11 21:03:05,703 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7917647058823529 [2022-12-11 21:03:05,703 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 21 predicate places. [2022-12-11 21:03:05,703 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 103 transitions, 750 flow [2022-12-11 21:03:05,705 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 87 transitions, 558 flow [2022-12-11 21:03:05,705 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 87 transitions, 558 flow [2022-12-11 21:03:05,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.28571428571429) internal successors, (457), 7 states have internal predecessors, (457), 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) [2022-12-11 21:03:05,706 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:03:05,706 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] [2022-12-11 21:03:05,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 21:03:05,706 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)] === [2022-12-11 21:03:05,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:03:05,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1312158308, now seen corresponding path program 1 times [2022-12-11 21:03:05,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:03:05,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361656685] [2022-12-11 21:03:05,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:03:05,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:03:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:03:05,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:03:05,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:03:05,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361656685] [2022-12-11 21:03:05,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361656685] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:03:05,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:03:05,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:03:05,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724165681] [2022-12-11 21:03:05,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:03:05,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:03:05,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:03:05,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:03:05,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:03:05,867 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 85 [2022-12-11 21:03:05,867 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 87 transitions, 558 flow. Second operand has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 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) [2022-12-11 21:03:05,867 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:03:05,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 85 [2022-12-11 21:03:05,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:03:05,953 INFO L130 PetriNetUnfolder]: 27/236 cut-off events. [2022-12-11 21:03:05,954 INFO L131 PetriNetUnfolder]: For 616/832 co-relation queries the response was YES. [2022-12-11 21:03:05,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 236 events. 27/236 cut-off events. For 616/832 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 988 event pairs, 3 based on Foata normal form. 13/236 useless extension candidates. Maximal degree in co-relation 685. Up to 63 conditions per place. [2022-12-11 21:03:05,955 INFO L137 encePairwiseOnDemand]: 77/85 looper letters, 16 selfloop transitions, 6 changer transitions 16/95 dead transitions. [2022-12-11 21:03:05,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 95 transitions, 729 flow [2022-12-11 21:03:05,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 21:03:05,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 21:03:05,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 487 transitions. [2022-12-11 21:03:05,957 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8184873949579832 [2022-12-11 21:03:05,958 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 21 predicate places. [2022-12-11 21:03:05,958 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 95 transitions, 729 flow [2022-12-11 21:03:05,959 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 79 transitions, 497 flow [2022-12-11 21:03:05,959 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 79 transitions, 497 flow [2022-12-11 21:03:05,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 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) [2022-12-11 21:03:05,960 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:03:05,960 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] [2022-12-11 21:03:05,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 21:03:05,960 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)] === [2022-12-11 21:03:05,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:03:05,961 INFO L85 PathProgramCache]: Analyzing trace with hash 573419014, now seen corresponding path program 2 times [2022-12-11 21:03:05,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:03:05,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284759308] [2022-12-11 21:03:05,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:03:05,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:03:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:03:06,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:03:06,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:03:06,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284759308] [2022-12-11 21:03:06,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284759308] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:03:06,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:03:06,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:03:06,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452945921] [2022-12-11 21:03:06,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:03:06,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:03:06,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:03:06,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:03:06,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:03:06,104 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 85 [2022-12-11 21:03:06,105 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 79 transitions, 497 flow. Second operand has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 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) [2022-12-11 21:03:06,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:03:06,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 85 [2022-12-11 21:03:06,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:03:06,188 INFO L130 PetriNetUnfolder]: 16/138 cut-off events. [2022-12-11 21:03:06,188 INFO L131 PetriNetUnfolder]: For 400/637 co-relation queries the response was YES. [2022-12-11 21:03:06,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 138 events. 16/138 cut-off events. For 400/637 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 353 event pairs, 5 based on Foata normal form. 10/143 useless extension candidates. Maximal degree in co-relation 460. Up to 46 conditions per place. [2022-12-11 21:03:06,189 INFO L137 encePairwiseOnDemand]: 78/85 looper letters, 14 selfloop transitions, 2 changer transitions 13/83 dead transitions. [2022-12-11 21:03:06,189 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 83 transitions, 605 flow [2022-12-11 21:03:06,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-11 21:03:06,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-11 21:03:06,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 553 transitions. [2022-12-11 21:03:06,191 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8132352941176471 [2022-12-11 21:03:06,192 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 25 predicate places. [2022-12-11 21:03:06,192 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 83 transitions, 605 flow [2022-12-11 21:03:06,193 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 70 transitions, 406 flow [2022-12-11 21:03:06,193 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 70 transitions, 406 flow [2022-12-11 21:03:06,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 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) [2022-12-11 21:03:06,194 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:03:06,194 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] [2022-12-11 21:03:06,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 21:03:06,194 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)] === [2022-12-11 21:03:06,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:03:06,195 INFO L85 PathProgramCache]: Analyzing trace with hash 249720710, now seen corresponding path program 3 times [2022-12-11 21:03:06,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:03:06,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339511035] [2022-12-11 21:03:06,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:03:06,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:03:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:03:06,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:03:06,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:03:06,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339511035] [2022-12-11 21:03:06,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339511035] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:03:06,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:03:06,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 21:03:06,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228116763] [2022-12-11 21:03:06,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:03:06,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 21:03:06,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:03:06,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 21:03:06,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 21:03:06,383 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 21:03:06,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 70 transitions, 406 flow. Second operand has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:06,384 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:03:06,384 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 21:03:06,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:03:06,510 INFO L130 PetriNetUnfolder]: 133/416 cut-off events. [2022-12-11 21:03:06,510 INFO L131 PetriNetUnfolder]: For 555/613 co-relation queries the response was YES. [2022-12-11 21:03:06,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1131 conditions, 416 events. 133/416 cut-off events. For 555/613 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2142 event pairs, 34 based on Foata normal form. 1/400 useless extension candidates. Maximal degree in co-relation 1054. Up to 85 conditions per place. [2022-12-11 21:03:06,514 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 18 selfloop transitions, 8 changer transitions 20/101 dead transitions. [2022-12-11 21:03:06,514 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 101 transitions, 577 flow [2022-12-11 21:03:06,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 21:03:06,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 21:03:06,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 727 transitions. [2022-12-11 21:03:06,516 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8552941176470589 [2022-12-11 21:03:06,517 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 28 predicate places. [2022-12-11 21:03:06,517 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 101 transitions, 577 flow [2022-12-11 21:03:06,519 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 81 transitions, 497 flow [2022-12-11 21:03:06,519 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 81 transitions, 497 flow [2022-12-11 21:03:06,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:06,520 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:03:06,520 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] [2022-12-11 21:03:06,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-11 21:03:06,520 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 21:03:06,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:03:06,521 INFO L85 PathProgramCache]: Analyzing trace with hash 662966209, now seen corresponding path program 1 times [2022-12-11 21:03:06,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:03:06,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180120830] [2022-12-11 21:03:06,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:03:06,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:03:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:03:06,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:03:06,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:03:06,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180120830] [2022-12-11 21:03:06,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180120830] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:03:06,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:03:06,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:03:06,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631157399] [2022-12-11 21:03:06,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:03:06,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:03:06,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:03:06,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:03:06,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:03:06,659 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 21:03:06,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 81 transitions, 497 flow. Second operand has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:06,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:03:06,660 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 21:03:06,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:03:06,820 INFO L130 PetriNetUnfolder]: 65/278 cut-off events. [2022-12-11 21:03:06,820 INFO L131 PetriNetUnfolder]: For 485/569 co-relation queries the response was YES. [2022-12-11 21:03:06,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 899 conditions, 278 events. 65/278 cut-off events. For 485/569 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1187 event pairs, 5 based on Foata normal form. 19/292 useless extension candidates. Maximal degree in co-relation 818. Up to 97 conditions per place. [2022-12-11 21:03:06,823 INFO L137 encePairwiseOnDemand]: 76/85 looper letters, 15 selfloop transitions, 9 changer transitions 30/109 dead transitions. [2022-12-11 21:03:06,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 109 transitions, 717 flow [2022-12-11 21:03:06,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-11 21:03:06,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-11 21:03:06,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 865 transitions. [2022-12-11 21:03:06,825 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8480392156862745 [2022-12-11 21:03:06,826 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 36 predicate places. [2022-12-11 21:03:06,826 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 109 transitions, 717 flow [2022-12-11 21:03:06,828 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 79 transitions, 537 flow [2022-12-11 21:03:06,828 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 79 transitions, 537 flow [2022-12-11 21:03:06,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:06,828 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:03:06,829 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] [2022-12-11 21:03:06,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-11 21:03:06,829 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 21:03:06,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:03:06,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1429648110, now seen corresponding path program 1 times [2022-12-11 21:03:06,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:03:06,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486672123] [2022-12-11 21:03:06,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:03:06,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:03:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:03:06,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:03:06,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:03:06,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486672123] [2022-12-11 21:03:06,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486672123] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:03:06,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:03:06,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 21:03:06,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493053846] [2022-12-11 21:03:06,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:03:06,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 21:03:06,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:03:06,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 21:03:06,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-11 21:03:06,984 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 21:03:06,984 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 79 transitions, 537 flow. Second operand has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:06,984 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:03:06,984 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 21:03:06,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:03:07,121 INFO L130 PetriNetUnfolder]: 18/128 cut-off events. [2022-12-11 21:03:07,122 INFO L131 PetriNetUnfolder]: For 467/485 co-relation queries the response was YES. [2022-12-11 21:03:07,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 128 events. 18/128 cut-off events. For 467/485 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 260 event pairs, 0 based on Foata normal form. 11/139 useless extension candidates. Maximal degree in co-relation 390. Up to 33 conditions per place. [2022-12-11 21:03:07,123 INFO L137 encePairwiseOnDemand]: 76/85 looper letters, 9 selfloop transitions, 12 changer transitions 16/92 dead transitions. [2022-12-11 21:03:07,123 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 92 transitions, 689 flow [2022-12-11 21:03:07,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-11 21:03:07,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-11 21:03:07,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 783 transitions. [2022-12-11 21:03:07,125 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8374331550802139 [2022-12-11 21:03:07,128 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 37 predicate places. [2022-12-11 21:03:07,128 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 92 transitions, 689 flow [2022-12-11 21:03:07,129 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 76 transitions, 561 flow [2022-12-11 21:03:07,129 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 76 transitions, 561 flow [2022-12-11 21:03:07,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 21:03:07,130 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:03:07,130 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] [2022-12-11 21:03:07,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-11 21:03:07,130 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 21:03:07,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:03:07,131 INFO L85 PathProgramCache]: Analyzing trace with hash -654297073, now seen corresponding path program 1 times [2022-12-11 21:03:07,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:03:07,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329097252] [2022-12-11 21:03:07,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:03:07,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:03:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:03:07,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:03:07,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:03:07,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329097252] [2022-12-11 21:03:07,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329097252] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:03:07,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:03:07,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:03:07,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534580663] [2022-12-11 21:03:07,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:03:07,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:03:07,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:03:07,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:03:07,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:03:07,287 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 21:03:07,287 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 76 transitions, 561 flow. Second operand has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 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) [2022-12-11 21:03:07,288 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:03:07,288 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 21:03:07,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:03:07,352 INFO L130 PetriNetUnfolder]: 8/99 cut-off events. [2022-12-11 21:03:07,352 INFO L131 PetriNetUnfolder]: For 638/654 co-relation queries the response was YES. [2022-12-11 21:03:07,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 99 events. 8/99 cut-off events. For 638/654 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 140 event pairs, 0 based on Foata normal form. 3/102 useless extension candidates. Maximal degree in co-relation 298. Up to 17 conditions per place. [2022-12-11 21:03:07,353 INFO L137 encePairwiseOnDemand]: 79/85 looper letters, 0 selfloop transitions, 0 changer transitions 75/75 dead transitions. [2022-12-11 21:03:07,353 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 75 transitions, 598 flow [2022-12-11 21:03:07,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 21:03:07,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 21:03:07,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 490 transitions. [2022-12-11 21:03:07,355 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8235294117647058 [2022-12-11 21:03:07,356 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 37 predicate places. [2022-12-11 21:03:07,356 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 75 transitions, 598 flow [2022-12-11 21:03:07,356 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-11 21:03:07,356 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-11 21:03:07,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 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) [2022-12-11 21:03:07,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 21:03:07,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-11 21:03:07,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-11 21:03:07,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-11 21:03:07,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-11 21:03:07,360 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:03:07,362 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 21:03:07,362 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 21:03:07,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 09:03:07 BasicIcfg [2022-12-11 21:03:07,367 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 21:03:07,368 INFO L158 Benchmark]: Toolchain (without parser) took 6127.22ms. Allocated memory was 186.6MB in the beginning and 274.7MB in the end (delta: 88.1MB). Free memory was 162.1MB in the beginning and 162.3MB in the end (delta: -192.1kB). Peak memory consumption was 89.5MB. Max. memory is 8.0GB. [2022-12-11 21:03:07,368 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 186.6MB. Free memory was 163.3MB in the beginning and 163.2MB in the end (delta: 61.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 21:03:07,368 INFO L158 Benchmark]: CACSL2BoogieTranslator took 550.68ms. Allocated memory is still 186.6MB. Free memory was 162.1MB in the beginning and 138.5MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-11 21:03:07,369 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.69ms. Allocated memory is still 186.6MB. Free memory was 138.5MB in the beginning and 136.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-11 21:03:07,369 INFO L158 Benchmark]: Boogie Preprocessor took 37.09ms. Allocated memory is still 186.6MB. Free memory was 136.9MB in the beginning and 135.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 21:03:07,370 INFO L158 Benchmark]: RCFGBuilder took 460.86ms. Allocated memory is still 186.6MB. Free memory was 135.3MB in the beginning and 121.2MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-11 21:03:07,371 INFO L158 Benchmark]: TraceAbstraction took 5008.47ms. Allocated memory was 186.6MB in the beginning and 274.7MB in the end (delta: 88.1MB). Free memory was 120.1MB in the beginning and 162.3MB in the end (delta: -42.1MB). Peak memory consumption was 47.5MB. Max. memory is 8.0GB. [2022-12-11 21:03:07,372 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 186.6MB. Free memory was 163.3MB in the beginning and 163.2MB in the end (delta: 61.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 550.68ms. Allocated memory is still 186.6MB. Free memory was 162.1MB in the beginning and 138.5MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.69ms. Allocated memory is still 186.6MB. Free memory was 138.5MB in the beginning and 136.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.09ms. Allocated memory is still 186.6MB. Free memory was 136.9MB in the beginning and 135.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 460.86ms. Allocated memory is still 186.6MB. Free memory was 135.3MB in the beginning and 121.2MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 5008.47ms. Allocated memory was 186.6MB in the beginning and 274.7MB in the end (delta: 88.1MB). Free memory was 120.1MB in the beginning and 162.3MB in the end (delta: -42.1MB). Peak memory consumption was 47.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 397 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 397 mSDsluCounter, 605 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 457 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 673 IncrementalHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 148 mSDtfsCounter, 673 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=561occurred in iteration=10, InterpolantAutomatonStates: 111, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 2831 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 621 NumberOfCodeBlocks, 621 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 610 ConstructedInterpolants, 0 QuantifiedInterpolants, 2678 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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! [2022-12-11 21:03:07,390 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...