/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix052_pso.opt_rmo.opt_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 18:37:23,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:37:23,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:37:23,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:37:23,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:37:23,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:37:23,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:37:23,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:37:23,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:37:23,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:37:23,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:37:23,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:37:23,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:37:23,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:37:23,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:37:23,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:37:23,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:37:23,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:37:23,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:37:23,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:37:23,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:37:23,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:37:23,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:37:23,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:37:23,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 18:37:23,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 18:37:23,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 18:37:23,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 18:37:23,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 18:37:23,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 18:37:23,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 18:37:23,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 18:37:23,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 18:37:23,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 18:37:23,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 18:37:23,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 18:37:23,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 18:37:23,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 18:37:23,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:37:23,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:37:23,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:37:23,710 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 [2022-12-05 18:37:23,735 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:37:23,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:37:23,736 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:37:23,736 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:37:23,736 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:37:23,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:37:23,737 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:37:23,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:37:23,737 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:37:23,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:37:23,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:37:23,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:37:23,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:37:23,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:37:23,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:37:23,738 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:37:23,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:37:23,739 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:37:23,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:37:23,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:37:23,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:37:23,739 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:37:23,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:37:23,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:37:23,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:37:23,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:37:23,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:37:23,740 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:37:23,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:37:23,740 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:37:23,740 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:37:23,740 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:37:24,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:37:24,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:37:24,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:37:24,041 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:37:24,041 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:37:24,043 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix052_pso.opt_rmo.opt_tso.opt.i [2022-12-05 18:37:24,952 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:37:25,202 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:37:25,202 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix052_pso.opt_rmo.opt_tso.opt.i [2022-12-05 18:37:25,214 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bb3c7d18/95a6c4e23afd4c6994f0719a7a295f38/FLAG5f05de7be [2022-12-05 18:37:25,227 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bb3c7d18/95a6c4e23afd4c6994f0719a7a295f38 [2022-12-05 18:37:25,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:37:25,229 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:37:25,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:37:25,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:37:25,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:37:25,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:37:25" (1/1) ... [2022-12-05 18:37:25,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6648963f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:37:25, skipping insertion in model container [2022-12-05 18:37:25,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:37:25" (1/1) ... [2022-12-05 18:37:25,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:37:25,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:37:25,366 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/mix052_pso.opt_rmo.opt_tso.opt.i[964,977] [2022-12-05 18:37:25,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,470 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,470 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,470 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,471 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,471 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,487 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,487 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,487 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,490 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,492 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,494 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,494 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,500 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,500 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,500 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:37:25,527 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:37:25,536 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/mix052_pso.opt_rmo.opt_tso.opt.i[964,977] [2022-12-05 18:37:25,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,563 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,568 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,568 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,568 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,571 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,571 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,572 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:37:25,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:37:25,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:37:25,608 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:37:25,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:37:25 WrapperNode [2022-12-05 18:37:25,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:37:25,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:37:25,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:37:25,609 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:37:25,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:37:25" (1/1) ... [2022-12-05 18:37:25,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:37:25" (1/1) ... [2022-12-05 18:37:25,668 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 128 [2022-12-05 18:37:25,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:37:25,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:37:25,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:37:25,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:37:25,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:37:25" (1/1) ... [2022-12-05 18:37:25,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:37:25" (1/1) ... [2022-12-05 18:37:25,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:37:25" (1/1) ... [2022-12-05 18:37:25,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:37:25" (1/1) ... [2022-12-05 18:37:25,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:37:25" (1/1) ... [2022-12-05 18:37:25,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:37:25" (1/1) ... [2022-12-05 18:37:25,696 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:37:25" (1/1) ... [2022-12-05 18:37:25,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:37:25" (1/1) ... [2022-12-05 18:37:25,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:37:25,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:37:25,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:37:25,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:37:25,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:37:25" (1/1) ... [2022-12-05 18:37:25,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:37:25,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:37:25,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 18:37:25,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:37:25,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 18:37:25,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:37:25,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:37:25,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:37:25,772 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-05 18:37:25,772 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-05 18:37:25,772 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-05 18:37:25,772 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-05 18:37:25,772 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-05 18:37:25,772 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-05 18:37:25,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:37:25,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 18:37:25,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:37:25,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:37:25,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 18:37:25,774 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 18:37:25,920 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:37:25,922 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:37:26,174 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:37:26,267 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:37:26,267 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 18:37:26,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:37:26 BoogieIcfgContainer [2022-12-05 18:37:26,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:37:26,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:37:26,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:37:26,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:37:26,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:37:25" (1/3) ... [2022-12-05 18:37:26,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f253f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:37:26, skipping insertion in model container [2022-12-05 18:37:26,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:37:25" (2/3) ... [2022-12-05 18:37:26,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f253f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:37:26, skipping insertion in model container [2022-12-05 18:37:26,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:37:26" (3/3) ... [2022-12-05 18:37:26,274 INFO L112 eAbstractionObserver]: Analyzing ICFG mix052_pso.opt_rmo.opt_tso.opt.i [2022-12-05 18:37:26,290 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:37:26,290 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-05 18:37:26,290 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:37:26,336 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 18:37:26,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 106 transitions, 227 flow [2022-12-05 18:37:26,421 INFO L130 PetriNetUnfolder]: 2/103 cut-off events. [2022-12-05 18:37:26,422 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:37:26,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 103 events. 2/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2022-12-05 18:37:26,426 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 106 transitions, 227 flow [2022-12-05 18:37:26,430 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 103 transitions, 215 flow [2022-12-05 18:37:26,442 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:37:26,447 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;@2636b7d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:37:26,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-05 18:37:26,487 INFO L130 PetriNetUnfolder]: 0/68 cut-off events. [2022-12-05 18:37:26,487 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:37:26,488 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:37:26,488 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:37:26,489 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:37:26,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:37:26,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1926343169, now seen corresponding path program 1 times [2022-12-05 18:37:26,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:37:26,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591716840] [2022-12-05 18:37:26,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:37:26,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:37:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:37:26,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:37:26,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:37:26,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591716840] [2022-12-05 18:37:26,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591716840] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:37:26,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:37:26,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 18:37:26,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535043724] [2022-12-05 18:37:26,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:37:26,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 18:37:26,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:37:26,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 18:37:26,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 18:37:26,985 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 106 [2022-12-05 18:37:26,987 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 103 transitions, 215 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:37:26,987 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:37:26,987 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 106 [2022-12-05 18:37:26,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:37:27,053 INFO L130 PetriNetUnfolder]: 10/165 cut-off events. [2022-12-05 18:37:27,054 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-05 18:37:27,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 165 events. 10/165 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 326 event pairs, 4 based on Foata normal form. 5/161 useless extension candidates. Maximal degree in co-relation 155. Up to 17 conditions per place. [2022-12-05 18:37:27,057 INFO L137 encePairwiseOnDemand]: 101/106 looper letters, 8 selfloop transitions, 2 changer transitions 0/101 dead transitions. [2022-12-05 18:37:27,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 101 transitions, 231 flow [2022-12-05 18:37:27,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 18:37:27,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 18:37:27,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2022-12-05 18:37:27,072 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9339622641509434 [2022-12-05 18:37:27,073 INFO L175 Difference]: Start difference. First operand has 111 places, 103 transitions, 215 flow. Second operand 3 states and 297 transitions. [2022-12-05 18:37:27,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 101 transitions, 231 flow [2022-12-05 18:37:27,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 101 transitions, 228 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 18:37:27,081 INFO L231 Difference]: Finished difference. Result has 108 places, 99 transitions, 208 flow [2022-12-05 18:37:27,083 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=108, PETRI_TRANSITIONS=99} [2022-12-05 18:37:27,087 INFO L294 CegarLoopForPetriNet]: 111 programPoint places, -3 predicate places. [2022-12-05 18:37:27,087 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 99 transitions, 208 flow [2022-12-05 18:37:27,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:37:27,088 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:37:27,088 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:37:27,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:37:27,089 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:37:27,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:37:27,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1385065586, now seen corresponding path program 1 times [2022-12-05 18:37:27,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:37:27,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405181805] [2022-12-05 18:37:27,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:37:27,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:37:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:37:27,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:37:27,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:37:27,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405181805] [2022-12-05 18:37:27,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405181805] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:37:27,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:37:27,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:37:27,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034795703] [2022-12-05 18:37:27,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:37:27,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:37:27,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:37:27,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:37:27,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:37:27,470 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 106 [2022-12-05 18:37:27,470 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 99 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 86.83333333333333) internal successors, (521), 6 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:37:27,471 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:37:27,471 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 106 [2022-12-05 18:37:27,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:37:27,784 INFO L130 PetriNetUnfolder]: 357/1098 cut-off events. [2022-12-05 18:37:27,785 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-12-05 18:37:27,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 1098 events. 357/1098 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 7297 event pairs, 144 based on Foata normal form. 0/1060 useless extension candidates. Maximal degree in co-relation 1726. Up to 333 conditions per place. [2022-12-05 18:37:27,794 INFO L137 encePairwiseOnDemand]: 99/106 looper letters, 20 selfloop transitions, 3 changer transitions 46/142 dead transitions. [2022-12-05 18:37:27,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 142 transitions, 432 flow [2022-12-05 18:37:27,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 18:37:27,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 18:37:27,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 827 transitions. [2022-12-05 18:37:27,799 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8668763102725366 [2022-12-05 18:37:27,799 INFO L175 Difference]: Start difference. First operand has 108 places, 99 transitions, 208 flow. Second operand 9 states and 827 transitions. [2022-12-05 18:37:27,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 142 transitions, 432 flow [2022-12-05 18:37:27,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 142 transitions, 414 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 18:37:27,803 INFO L231 Difference]: Finished difference. Result has 121 places, 91 transitions, 227 flow [2022-12-05 18:37:27,803 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=227, PETRI_PLACES=121, PETRI_TRANSITIONS=91} [2022-12-05 18:37:27,804 INFO L294 CegarLoopForPetriNet]: 111 programPoint places, 10 predicate places. [2022-12-05 18:37:27,804 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 91 transitions, 227 flow [2022-12-05 18:37:27,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.83333333333333) internal successors, (521), 6 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:37:27,804 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:37:27,805 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:37:27,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:37:27,805 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:37:27,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:37:27,805 INFO L85 PathProgramCache]: Analyzing trace with hash -857695309, now seen corresponding path program 1 times [2022-12-05 18:37:27,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:37:27,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964116195] [2022-12-05 18:37:27,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:37:27,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:37:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:37:28,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:37:28,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:37:28,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964116195] [2022-12-05 18:37:28,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964116195] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:37:28,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:37:28,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:37:28,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875558863] [2022-12-05 18:37:28,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:37:28,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:37:28,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:37:28,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:37:28,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:37:28,010 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 106 [2022-12-05 18:37:28,011 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 91 transitions, 227 flow. Second operand has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:37:28,011 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:37:28,011 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 106 [2022-12-05 18:37:28,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:37:28,285 INFO L130 PetriNetUnfolder]: 597/1341 cut-off events. [2022-12-05 18:37:28,286 INFO L131 PetriNetUnfolder]: For 370/370 co-relation queries the response was YES. [2022-12-05 18:37:28,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2686 conditions, 1341 events. 597/1341 cut-off events. For 370/370 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 8811 event pairs, 47 based on Foata normal form. 0/1276 useless extension candidates. Maximal degree in co-relation 2630. Up to 342 conditions per place. [2022-12-05 18:37:28,295 INFO L137 encePairwiseOnDemand]: 96/106 looper letters, 51 selfloop transitions, 15 changer transitions 5/144 dead transitions. [2022-12-05 18:37:28,295 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 144 transitions, 479 flow [2022-12-05 18:37:28,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 18:37:28,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 18:37:28,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 913 transitions. [2022-12-05 18:37:28,297 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8613207547169811 [2022-12-05 18:37:28,297 INFO L175 Difference]: Start difference. First operand has 121 places, 91 transitions, 227 flow. Second operand 10 states and 913 transitions. [2022-12-05 18:37:28,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 144 transitions, 479 flow [2022-12-05 18:37:28,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 144 transitions, 470 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-12-05 18:37:28,304 INFO L231 Difference]: Finished difference. Result has 116 places, 104 transitions, 327 flow [2022-12-05 18:37:28,305 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=327, PETRI_PLACES=116, PETRI_TRANSITIONS=104} [2022-12-05 18:37:28,305 INFO L294 CegarLoopForPetriNet]: 111 programPoint places, 5 predicate places. [2022-12-05 18:37:28,306 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 104 transitions, 327 flow [2022-12-05 18:37:28,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:37:28,306 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:37:28,306 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:37:28,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:37:28,307 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:37:28,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:37:28,307 INFO L85 PathProgramCache]: Analyzing trace with hash 878408752, now seen corresponding path program 1 times [2022-12-05 18:37:28,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:37:28,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872907886] [2022-12-05 18:37:28,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:37:28,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:37:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:37:28,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:37:28,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:37:28,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872907886] [2022-12-05 18:37:28,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872907886] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:37:28,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:37:28,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:37:28,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947190716] [2022-12-05 18:37:28,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:37:28,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:37:28,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:37:28,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:37:28,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:37:28,489 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 106 [2022-12-05 18:37:28,489 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 104 transitions, 327 flow. Second operand has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:37:28,490 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:37:28,490 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 106 [2022-12-05 18:37:28,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:37:28,769 INFO L130 PetriNetUnfolder]: 356/1307 cut-off events. [2022-12-05 18:37:28,769 INFO L131 PetriNetUnfolder]: For 1036/1196 co-relation queries the response was YES. [2022-12-05 18:37:28,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3142 conditions, 1307 events. 356/1307 cut-off events. For 1036/1196 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 10458 event pairs, 123 based on Foata normal form. 39/1269 useless extension candidates. Maximal degree in co-relation 3081. Up to 225 conditions per place. [2022-12-05 18:37:28,776 INFO L137 encePairwiseOnDemand]: 100/106 looper letters, 25 selfloop transitions, 3 changer transitions 28/142 dead transitions. [2022-12-05 18:37:28,776 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 142 transitions, 559 flow [2022-12-05 18:37:28,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 18:37:28,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 18:37:28,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 822 transitions. [2022-12-05 18:37:28,778 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8616352201257862 [2022-12-05 18:37:28,778 INFO L175 Difference]: Start difference. First operand has 116 places, 104 transitions, 327 flow. Second operand 9 states and 822 transitions. [2022-12-05 18:37:28,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 142 transitions, 559 flow [2022-12-05 18:37:28,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 142 transitions, 549 flow, removed 4 selfloop flow, removed 1 redundant places. [2022-12-05 18:37:28,784 INFO L231 Difference]: Finished difference. Result has 130 places, 104 transitions, 346 flow [2022-12-05 18:37:28,784 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=346, PETRI_PLACES=130, PETRI_TRANSITIONS=104} [2022-12-05 18:37:28,784 INFO L294 CegarLoopForPetriNet]: 111 programPoint places, 19 predicate places. [2022-12-05 18:37:28,784 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 104 transitions, 346 flow [2022-12-05 18:37:28,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:37:28,785 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:37:28,785 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:37:28,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 18:37:28,785 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:37:28,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:37:28,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1117423152, now seen corresponding path program 1 times [2022-12-05 18:37:28,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:37:28,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884348230] [2022-12-05 18:37:28,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:37:28,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:37:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:37:28,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:37:28,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:37:28,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884348230] [2022-12-05 18:37:28,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884348230] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:37:28,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:37:28,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:37:28,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792923501] [2022-12-05 18:37:28,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:37:28,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:37:28,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:37:28,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:37:28,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:37:28,940 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 106 [2022-12-05 18:37:28,940 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 104 transitions, 346 flow. Second operand has 7 states, 7 states have (on average 85.85714285714286) internal successors, (601), 7 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:37:28,940 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:37:28,940 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 106 [2022-12-05 18:37:28,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:37:29,316 INFO L130 PetriNetUnfolder]: 776/1762 cut-off events. [2022-12-05 18:37:29,316 INFO L131 PetriNetUnfolder]: For 2359/2364 co-relation queries the response was YES. [2022-12-05 18:37:29,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5063 conditions, 1762 events. 776/1762 cut-off events. For 2359/2364 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 13168 event pairs, 39 based on Foata normal form. 37/1747 useless extension candidates. Maximal degree in co-relation 4995. Up to 436 conditions per place. [2022-12-05 18:37:29,323 INFO L137 encePairwiseOnDemand]: 96/106 looper letters, 29 selfloop transitions, 9 changer transitions 61/172 dead transitions. [2022-12-05 18:37:29,323 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 172 transitions, 840 flow [2022-12-05 18:37:29,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-05 18:37:29,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-05 18:37:29,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1187 transitions. [2022-12-05 18:37:29,327 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8613933236574746 [2022-12-05 18:37:29,327 INFO L175 Difference]: Start difference. First operand has 130 places, 104 transitions, 346 flow. Second operand 13 states and 1187 transitions. [2022-12-05 18:37:29,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 172 transitions, 840 flow [2022-12-05 18:37:29,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 172 transitions, 819 flow, removed 9 selfloop flow, removed 7 redundant places. [2022-12-05 18:37:29,337 INFO L231 Difference]: Finished difference. Result has 135 places, 96 transitions, 350 flow [2022-12-05 18:37:29,337 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=350, PETRI_PLACES=135, PETRI_TRANSITIONS=96} [2022-12-05 18:37:29,339 INFO L294 CegarLoopForPetriNet]: 111 programPoint places, 24 predicate places. [2022-12-05 18:37:29,339 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 96 transitions, 350 flow [2022-12-05 18:37:29,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 85.85714285714286) internal successors, (601), 7 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:37:29,339 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:37:29,339 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:37:29,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 18:37:29,340 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:37:29,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:37:29,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1194277408, now seen corresponding path program 1 times [2022-12-05 18:37:29,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:37:29,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768521796] [2022-12-05 18:37:29,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:37:29,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:37:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:37:29,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:37:29,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:37:29,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768521796] [2022-12-05 18:37:29,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768521796] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:37:29,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:37:29,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:37:29,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302927139] [2022-12-05 18:37:29,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:37:29,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:37:29,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:37:29,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:37:29,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:37:29,542 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 106 [2022-12-05 18:37:29,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 96 transitions, 350 flow. Second operand has 8 states, 8 states have (on average 85.75) internal successors, (686), 8 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:37:29,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:37:29,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 106 [2022-12-05 18:37:29,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:37:29,717 INFO L130 PetriNetUnfolder]: 107/406 cut-off events. [2022-12-05 18:37:29,718 INFO L131 PetriNetUnfolder]: For 1085/1091 co-relation queries the response was YES. [2022-12-05 18:37:29,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1271 conditions, 406 events. 107/406 cut-off events. For 1085/1091 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2007 event pairs, 6 based on Foata normal form. 18/411 useless extension candidates. Maximal degree in co-relation 1222. Up to 87 conditions per place. [2022-12-05 18:37:29,720 INFO L137 encePairwiseOnDemand]: 97/106 looper letters, 20 selfloop transitions, 12 changer transitions 21/124 dead transitions. [2022-12-05 18:37:29,720 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 124 transitions, 617 flow [2022-12-05 18:37:29,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-05 18:37:29,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-05 18:37:29,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 977 transitions. [2022-12-05 18:37:29,722 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8379073756432247 [2022-12-05 18:37:29,722 INFO L175 Difference]: Start difference. First operand has 135 places, 96 transitions, 350 flow. Second operand 11 states and 977 transitions. [2022-12-05 18:37:29,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 124 transitions, 617 flow [2022-12-05 18:37:29,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 124 transitions, 489 flow, removed 49 selfloop flow, removed 16 redundant places. [2022-12-05 18:37:29,726 INFO L231 Difference]: Finished difference. Result has 122 places, 94 transitions, 304 flow [2022-12-05 18:37:29,726 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=304, PETRI_PLACES=122, PETRI_TRANSITIONS=94} [2022-12-05 18:37:29,727 INFO L294 CegarLoopForPetriNet]: 111 programPoint places, 11 predicate places. [2022-12-05 18:37:29,727 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 94 transitions, 304 flow [2022-12-05 18:37:29,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 85.75) internal successors, (686), 8 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:37:29,727 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:37:29,727 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:37:29,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 18:37:29,728 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:37:29,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:37:29,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1841317064, now seen corresponding path program 1 times [2022-12-05 18:37:29,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:37:29,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198789652] [2022-12-05 18:37:29,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:37:29,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:37:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:37:29,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:37:29,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:37:29,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198789652] [2022-12-05 18:37:29,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198789652] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:37:29,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:37:29,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:37:29,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718258198] [2022-12-05 18:37:29,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:37:29,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:37:29,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:37:29,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:37:29,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:37:29,916 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 106 [2022-12-05 18:37:29,917 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 94 transitions, 304 flow. Second operand has 8 states, 8 states have (on average 82.625) internal successors, (661), 8 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:37:29,917 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:37:29,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 106 [2022-12-05 18:37:29,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:37:30,044 INFO L130 PetriNetUnfolder]: 35/241 cut-off events. [2022-12-05 18:37:30,044 INFO L131 PetriNetUnfolder]: For 193/203 co-relation queries the response was YES. [2022-12-05 18:37:30,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 241 events. 35/241 cut-off events. For 193/203 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 822 event pairs, 2 based on Foata normal form. 1/236 useless extension candidates. Maximal degree in co-relation 497. Up to 31 conditions per place. [2022-12-05 18:37:30,045 INFO L137 encePairwiseOnDemand]: 97/106 looper letters, 18 selfloop transitions, 5 changer transitions 18/114 dead transitions. [2022-12-05 18:37:30,045 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 114 transitions, 444 flow [2022-12-05 18:37:30,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 18:37:30,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 18:37:30,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 762 transitions. [2022-12-05 18:37:30,047 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7987421383647799 [2022-12-05 18:37:30,047 INFO L175 Difference]: Start difference. First operand has 122 places, 94 transitions, 304 flow. Second operand 9 states and 762 transitions. [2022-12-05 18:37:30,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 114 transitions, 444 flow [2022-12-05 18:37:30,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 114 transitions, 347 flow, removed 23 selfloop flow, removed 18 redundant places. [2022-12-05 18:37:30,050 INFO L231 Difference]: Finished difference. Result has 112 places, 94 transitions, 234 flow [2022-12-05 18:37:30,050 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=234, PETRI_PLACES=112, PETRI_TRANSITIONS=94} [2022-12-05 18:37:30,050 INFO L294 CegarLoopForPetriNet]: 111 programPoint places, 1 predicate places. [2022-12-05 18:37:30,050 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 94 transitions, 234 flow [2022-12-05 18:37:30,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 82.625) internal successors, (661), 8 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:37:30,051 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:37:30,051 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:37:30,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 18:37:30,051 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:37:30,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:37:30,052 INFO L85 PathProgramCache]: Analyzing trace with hash -690827492, now seen corresponding path program 2 times [2022-12-05 18:37:30,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:37:30,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81044063] [2022-12-05 18:37:30,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:37:30,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:37:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:37:30,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:37:30,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:37:30,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81044063] [2022-12-05 18:37:30,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81044063] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:37:30,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:37:30,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:37:30,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060668431] [2022-12-05 18:37:30,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:37:30,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:37:30,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:37:30,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:37:30,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:37:30,441 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 106 [2022-12-05 18:37:30,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 94 transitions, 234 flow. Second operand has 8 states, 8 states have (on average 80.875) internal successors, (647), 8 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:37:30,441 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:37:30,441 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 106 [2022-12-05 18:37:30,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:37:30,573 INFO L130 PetriNetUnfolder]: 12/148 cut-off events. [2022-12-05 18:37:30,573 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:37:30,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 148 events. 12/148 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 282 event pairs, 0 based on Foata normal form. 1/147 useless extension candidates. Maximal degree in co-relation 225. Up to 12 conditions per place. [2022-12-05 18:37:30,574 INFO L137 encePairwiseOnDemand]: 94/106 looper letters, 17 selfloop transitions, 6 changer transitions 10/104 dead transitions. [2022-12-05 18:37:30,575 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 104 transitions, 332 flow [2022-12-05 18:37:30,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 18:37:30,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 18:37:30,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 814 transitions. [2022-12-05 18:37:30,576 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7679245283018868 [2022-12-05 18:37:30,576 INFO L175 Difference]: Start difference. First operand has 112 places, 94 transitions, 234 flow. Second operand 10 states and 814 transitions. [2022-12-05 18:37:30,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 104 transitions, 332 flow [2022-12-05 18:37:30,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 104 transitions, 307 flow, removed 7 selfloop flow, removed 7 redundant places. [2022-12-05 18:37:30,579 INFO L231 Difference]: Finished difference. Result has 117 places, 94 transitions, 255 flow [2022-12-05 18:37:30,579 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=255, PETRI_PLACES=117, PETRI_TRANSITIONS=94} [2022-12-05 18:37:30,580 INFO L294 CegarLoopForPetriNet]: 111 programPoint places, 6 predicate places. [2022-12-05 18:37:30,580 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 94 transitions, 255 flow [2022-12-05 18:37:30,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 80.875) internal successors, (647), 8 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:37:30,581 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:37:30,581 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:37:30,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 18:37:30,581 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:37:30,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:37:30,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1221367462, now seen corresponding path program 3 times [2022-12-05 18:37:30,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:37:30,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726674577] [2022-12-05 18:37:30,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:37:30,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:37:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 18:37:30,606 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-05 18:37:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 18:37:30,655 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-05 18:37:30,655 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-05 18:37:30,656 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-05 18:37:30,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-12-05 18:37:30,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-05 18:37:30,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-12-05 18:37:30,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-12-05 18:37:30,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-05 18:37:30,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-05 18:37:30,658 INFO L458 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1] [2022-12-05 18:37:30,663 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 18:37:30,663 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 18:37:30,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 06:37:30 BasicIcfg [2022-12-05 18:37:30,751 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 18:37:30,752 INFO L158 Benchmark]: Toolchain (without parser) took 5522.27ms. Allocated memory was 199.2MB in the beginning and 346.0MB in the end (delta: 146.8MB). Free memory was 173.8MB in the beginning and 157.5MB in the end (delta: 16.3MB). Peak memory consumption was 164.6MB. Max. memory is 8.0GB. [2022-12-05 18:37:30,752 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 199.2MB. Free memory is still 176.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 18:37:30,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.29ms. Allocated memory is still 199.2MB. Free memory was 173.7MB in the beginning and 148.0MB in the end (delta: 25.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-12-05 18:37:30,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.17ms. Allocated memory is still 199.2MB. Free memory was 148.0MB in the beginning and 145.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 18:37:30,752 INFO L158 Benchmark]: Boogie Preprocessor took 29.92ms. Allocated memory is still 199.2MB. Free memory was 145.9MB in the beginning and 143.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 18:37:30,752 INFO L158 Benchmark]: RCFGBuilder took 556.79ms. Allocated memory is still 199.2MB. Free memory was 143.8MB in the beginning and 114.4MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-12-05 18:37:30,752 INFO L158 Benchmark]: TraceAbstraction took 4480.88ms. Allocated memory was 199.2MB in the beginning and 346.0MB in the end (delta: 146.8MB). Free memory was 113.9MB in the beginning and 157.5MB in the end (delta: -43.6MB). Peak memory consumption was 104.8MB. Max. memory is 8.0GB. [2022-12-05 18:37:30,753 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 199.2MB. Free memory is still 176.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 377.29ms. Allocated memory is still 199.2MB. Free memory was 173.7MB in the beginning and 148.0MB in the end (delta: 25.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 59.17ms. Allocated memory is still 199.2MB. Free memory was 148.0MB in the beginning and 145.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.92ms. Allocated memory is still 199.2MB. Free memory was 145.9MB in the beginning and 143.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 556.79ms. Allocated memory is still 199.2MB. Free memory was 143.8MB in the beginning and 114.4MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 4480.88ms. Allocated memory was 199.2MB in the beginning and 346.0MB in the end (delta: 146.8MB). Free memory was 113.9MB in the beginning and 157.5MB in the end (delta: -43.6MB). Peak memory consumption was 104.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L711] 0 int __unbuffered_p1_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0] [L713] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0] [L714] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0] [L715] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L717] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L719] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L720] 0 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L721] 0 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L722] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L723] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L724] 0 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L725] 0 _Bool y$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0] [L726] 0 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0] [L727] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L728] 0 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L729] 0 _Bool y$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0] [L730] 0 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0] [L731] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L732] 0 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L733] 0 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L734] 0 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L735] 0 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L737] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L738] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L739] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L823] 0 pthread_t t1394; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1394={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L824] FCALL, FORK 0 pthread_create(&t1394, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1394, ((void *)0), P0, ((void *)0))=-2, t1394={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L825] 0 pthread_t t1395; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1394={5:0}, t1395={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L826] FCALL, FORK 0 pthread_create(&t1395, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1395, ((void *)0), P1, ((void *)0))=-1, t1394={5:0}, t1395={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L827] 0 pthread_t t1396; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1394={5:0}, t1395={6:0}, t1396={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L828] FCALL, FORK 0 pthread_create(&t1396, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1396, ((void *)0), P2, ((void *)0))=0, t1394={5:0}, t1395={6:0}, t1396={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L786] 3 y$w_buff1 = y$w_buff0 [L787] 3 y$w_buff0 = 1 [L788] 3 y$w_buff1_used = y$w_buff0_used [L789] 3 y$w_buff0_used = (_Bool)1 [L790] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L790] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L791] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L792] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L793] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L794] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L795] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L798] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L743] 1 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L746] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L758] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L761] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L762] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L763] 2 y$flush_delayed = weak$$choice2 [L764] 2 y$mem_tmp = y [L765] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L766] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L767] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L768] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L769] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L770] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L771] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L772] 2 __unbuffered_p1_EAX = y [L773] 2 y = y$flush_delayed ? y$mem_tmp : y [L774] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L801] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L802] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L803] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L804] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L805] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L751] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L779] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L830] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [__unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1394={5:0}, t1395={6:0}, t1396={3:0}, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L832] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) VAL [\old(cond)=1, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cond=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L832] RET 0 assume_abort_if_not(main$tmp_guard0) [L834] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L835] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L836] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L837] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L838] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [__unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1394={5:0}, t1395={6:0}, t1396={3:0}, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L841] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0) VAL [__unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1394={5:0}, t1395={6:0}, t1396={3:0}, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L843] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression VAL [\old(expression)=0, \old(expression)=1, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 826]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 824]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 828]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 131 locations, 6 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: 4.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 379 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 379 mSDsluCounter, 320 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 256 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 754 IncrementalHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 64 mSDtfsCounter, 754 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=350occurred in iteration=5, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 665 NumberOfCodeBlocks, 665 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 575 ConstructedInterpolants, 0 QuantifiedInterpolants, 1734 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-05 18:37:30,773 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...