/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/mix026_power.opt_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 19:01:15,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 19:01:15,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 19:01:15,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 19:01:15,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 19:01:15,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 19:01:15,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 19:01:15,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 19:01:15,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 19:01:15,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 19:01:15,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 19:01:15,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 19:01:15,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 19:01:15,783 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 19:01:15,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 19:01:15,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 19:01:15,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 19:01:15,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 19:01:15,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 19:01:15,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 19:01:15,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 19:01:15,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 19:01:15,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 19:01:15,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 19:01:15,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 19:01:15,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 19:01:15,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 19:01:15,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 19:01:15,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 19:01:15,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 19:01:15,802 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 19:01:15,803 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 19:01:15,804 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 19:01:15,805 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 19:01:15,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 19:01:15,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 19:01:15,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 19:01:15,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 19:01:15,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 19:01:15,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 19:01:15,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 19:01:15,810 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-11 19:01:15,834 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 19:01:15,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 19:01:15,835 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 19:01:15,835 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 19:01:15,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 19:01:15,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 19:01:15,837 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 19:01:15,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 19:01:15,837 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 19:01:15,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 19:01:15,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 19:01:15,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 19:01:15,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 19:01:15,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 19:01:15,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 19:01:15,838 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 19:01:15,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 19:01:15,838 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 19:01:15,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 19:01:15,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 19:01:15,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 19:01:15,838 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 19:01:15,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 19:01:15,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:01:15,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 19:01:15,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 19:01:15,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 19:01:15,839 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 19:01:15,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 19:01:15,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 19:01:15,839 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 19:01:15,839 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-11 19:01:16,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 19:01:16,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 19:01:16,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 19:01:16,143 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 19:01:16,144 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 19:01:16,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix026_power.opt_tso.opt.i [2022-12-11 19:01:17,080 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 19:01:17,331 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 19:01:17,332 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix026_power.opt_tso.opt.i [2022-12-11 19:01:17,352 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ca51040d/69348a367b0944bc9227b4954b568285/FLAG51f3b1add [2022-12-11 19:01:17,366 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ca51040d/69348a367b0944bc9227b4954b568285 [2022-12-11 19:01:17,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 19:01:17,369 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 19:01:17,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 19:01:17,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 19:01:17,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 19:01:17,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:01:17" (1/1) ... [2022-12-11 19:01:17,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e9ce663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:01:17, skipping insertion in model container [2022-12-11 19:01:17,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:01:17" (1/1) ... [2022-12-11 19:01:17,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 19:01:17,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 19:01:17,565 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/mix026_power.opt_tso.opt.i[1001,1014] [2022-12-11 19:01:17,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,708 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,708 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,708 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,708 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,709 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,713 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,713 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,714 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,714 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,714 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,719 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,719 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,726 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,726 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,726 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:01:17,737 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 19:01:17,745 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/mix026_power.opt_tso.opt.i[1001,1014] [2022-12-11 19:01:17,769 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,774 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,774 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,775 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,775 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,775 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:01:17,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:01:17,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:01:17,844 INFO L208 MainTranslator]: Completed translation [2022-12-11 19:01:17,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:01:17 WrapperNode [2022-12-11 19:01:17,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 19:01:17,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 19:01:17,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 19:01:17,847 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 19:01:17,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:01:17" (1/1) ... [2022-12-11 19:01:17,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:01:17" (1/1) ... [2022-12-11 19:01:17,901 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2022-12-11 19:01:17,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 19:01:17,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 19:01:17,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 19:01:17,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 19:01:17,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:01:17" (1/1) ... [2022-12-11 19:01:17,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:01:17" (1/1) ... [2022-12-11 19:01:17,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:01:17" (1/1) ... [2022-12-11 19:01:17,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:01:17" (1/1) ... [2022-12-11 19:01:17,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:01:17" (1/1) ... [2022-12-11 19:01:17,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:01:17" (1/1) ... [2022-12-11 19:01:17,935 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:01:17" (1/1) ... [2022-12-11 19:01:17,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:01:17" (1/1) ... [2022-12-11 19:01:17,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 19:01:17,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 19:01:17,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 19:01:17,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 19:01:17,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:01:17" (1/1) ... [2022-12-11 19:01:17,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:01:17,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:01:17,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-11 19:01:17,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-11 19:01:18,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 19:01:18,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 19:01:18,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 19:01:18,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 19:01:18,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 19:01:18,004 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-11 19:01:18,004 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-11 19:01:18,005 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-11 19:01:18,005 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-11 19:01:18,005 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-11 19:01:18,005 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-11 19:01:18,005 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-11 19:01:18,005 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-11 19:01:18,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 19:01:18,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 19:01:18,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 19:01:18,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 19:01:18,006 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 19:01:18,150 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 19:01:18,151 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 19:01:18,414 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 19:01:18,563 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 19:01:18,563 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 19:01:18,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:01:18 BoogieIcfgContainer [2022-12-11 19:01:18,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 19:01:18,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 19:01:18,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 19:01:18,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 19:01:18,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 07:01:17" (1/3) ... [2022-12-11 19:01:18,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@591a8cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:01:18, skipping insertion in model container [2022-12-11 19:01:18,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:01:17" (2/3) ... [2022-12-11 19:01:18,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@591a8cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:01:18, skipping insertion in model container [2022-12-11 19:01:18,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:01:18" (3/3) ... [2022-12-11 19:01:18,571 INFO L112 eAbstractionObserver]: Analyzing ICFG mix026_power.opt_tso.opt.i [2022-12-11 19:01:18,593 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 19:01:18,593 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-11 19:01:18,593 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 19:01:18,656 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 19:01:18,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 130 transitions, 280 flow [2022-12-11 19:01:18,768 INFO L130 PetriNetUnfolder]: 2/126 cut-off events. [2022-12-11 19:01:18,769 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:01:18,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 126 events. 2/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 73 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2022-12-11 19:01:18,773 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 130 transitions, 280 flow [2022-12-11 19:01:18,780 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 126 transitions, 264 flow [2022-12-11 19:01:18,791 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 19:01:18,797 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;@e7e1b02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 19:01:18,799 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-11 19:01:18,826 INFO L130 PetriNetUnfolder]: 0/60 cut-off events. [2022-12-11 19:01:18,827 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:01:18,827 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:01:18,827 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:01:18,828 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:01:18,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:01:18,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1090699425, now seen corresponding path program 1 times [2022-12-11 19:01:18,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:01:18,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499679766] [2022-12-11 19:01:18,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:01:18,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:01:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:01:19,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:01:19,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:01:19,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499679766] [2022-12-11 19:01:19,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499679766] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:01:19,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:01:19,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-11 19:01:19,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680484110] [2022-12-11 19:01:19,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:01:19,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-11 19:01:19,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:01:19,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-11 19:01:19,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-11 19:01:19,310 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 130 [2022-12-11 19:01:19,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 126 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:01:19,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:01:19,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 130 [2022-12-11 19:01:19,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:01:19,446 INFO L130 PetriNetUnfolder]: 109/421 cut-off events. [2022-12-11 19:01:19,447 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-12-11 19:01:19,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 647 conditions, 421 events. 109/421 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1933 event pairs, 23 based on Foata normal form. 34/429 useless extension candidates. Maximal degree in co-relation 592. Up to 131 conditions per place. [2022-12-11 19:01:19,455 INFO L137 encePairwiseOnDemand]: 125/130 looper letters, 15 selfloop transitions, 2 changer transitions 0/128 dead transitions. [2022-12-11 19:01:19,455 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 128 transitions, 308 flow [2022-12-11 19:01:19,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-11 19:01:19,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-11 19:01:19,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2022-12-11 19:01:19,469 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.941025641025641 [2022-12-11 19:01:19,471 INFO L175 Difference]: Start difference. First operand has 137 places, 126 transitions, 264 flow. Second operand 3 states and 367 transitions. [2022-12-11 19:01:19,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 128 transitions, 308 flow [2022-12-11 19:01:19,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 128 transitions, 302 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-11 19:01:19,477 INFO L231 Difference]: Finished difference. Result has 133 places, 122 transitions, 256 flow [2022-12-11 19:01:19,479 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=133, PETRI_TRANSITIONS=122} [2022-12-11 19:01:19,483 INFO L295 CegarLoopForPetriNet]: 137 programPoint places, -4 predicate places. [2022-12-11 19:01:19,483 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 122 transitions, 256 flow [2022-12-11 19:01:19,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:01:19,484 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:01:19,484 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:01:19,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 19:01:19,484 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:01:19,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:01:19,485 INFO L85 PathProgramCache]: Analyzing trace with hash -295058856, now seen corresponding path program 1 times [2022-12-11 19:01:19,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:01:19,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124247401] [2022-12-11 19:01:19,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:01:19,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:01:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:01:19,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:01:19,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:01:19,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124247401] [2022-12-11 19:01:19,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124247401] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:01:19,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:01:19,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:01:19,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693845436] [2022-12-11 19:01:19,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:01:19,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:01:19,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:01:19,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:01:19,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:01:19,872 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 130 [2022-12-11 19:01:19,873 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 122 transitions, 256 flow. Second operand has 7 states, 7 states have (on average 101.28571428571429) internal successors, (709), 7 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:01:19,873 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:01:19,873 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 130 [2022-12-11 19:01:19,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:01:21,299 INFO L130 PetriNetUnfolder]: 4676/9827 cut-off events. [2022-12-11 19:01:21,299 INFO L131 PetriNetUnfolder]: For 482/482 co-relation queries the response was YES. [2022-12-11 19:01:21,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16995 conditions, 9827 events. 4676/9827 cut-off events. For 482/482 co-relation queries the response was YES. Maximal size of possible extension queue 561. Compared 86276 event pairs, 578 based on Foata normal form. 0/9630 useless extension candidates. Maximal degree in co-relation 16937. Up to 2267 conditions per place. [2022-12-11 19:01:21,358 INFO L137 encePairwiseOnDemand]: 120/130 looper letters, 39 selfloop transitions, 6 changer transitions 96/225 dead transitions. [2022-12-11 19:01:21,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 225 transitions, 744 flow [2022-12-11 19:01:21,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:01:21,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:01:21,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1420 transitions. [2022-12-11 19:01:21,363 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8402366863905325 [2022-12-11 19:01:21,363 INFO L175 Difference]: Start difference. First operand has 133 places, 122 transitions, 256 flow. Second operand 13 states and 1420 transitions. [2022-12-11 19:01:21,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 225 transitions, 744 flow [2022-12-11 19:01:21,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 225 transitions, 718 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-11 19:01:21,367 INFO L231 Difference]: Finished difference. Result has 155 places, 114 transitions, 314 flow [2022-12-11 19:01:21,367 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=314, PETRI_PLACES=155, PETRI_TRANSITIONS=114} [2022-12-11 19:01:21,368 INFO L295 CegarLoopForPetriNet]: 137 programPoint places, 18 predicate places. [2022-12-11 19:01:21,368 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 114 transitions, 314 flow [2022-12-11 19:01:21,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 101.28571428571429) internal successors, (709), 7 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:01:21,369 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:01:21,369 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:01:21,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 19:01:21,369 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:01:21,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:01:21,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1825350748, now seen corresponding path program 1 times [2022-12-11 19:01:21,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:01:21,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204703820] [2022-12-11 19:01:21,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:01:21,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:01:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:01:21,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:01:21,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:01:21,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204703820] [2022-12-11 19:01:21,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204703820] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:01:21,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:01:21,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 19:01:21,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299487001] [2022-12-11 19:01:21,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:01:21,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 19:01:21,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:01:21,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 19:01:21,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 19:01:21,673 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 130 [2022-12-11 19:01:21,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 114 transitions, 314 flow. Second operand has 6 states, 6 states have (on average 106.0) internal successors, (636), 6 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:01:21,675 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:01:21,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 130 [2022-12-11 19:01:21,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:01:23,688 INFO L130 PetriNetUnfolder]: 10638/17775 cut-off events. [2022-12-11 19:01:23,688 INFO L131 PetriNetUnfolder]: For 16817/18398 co-relation queries the response was YES. [2022-12-11 19:01:23,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41780 conditions, 17775 events. 10638/17775 cut-off events. For 16817/18398 co-relation queries the response was YES. Maximal size of possible extension queue 1321. Compared 147213 event pairs, 868 based on Foata normal form. 72/16812 useless extension candidates. Maximal degree in co-relation 41714. Up to 5671 conditions per place. [2022-12-11 19:01:23,804 INFO L137 encePairwiseOnDemand]: 119/130 looper letters, 85 selfloop transitions, 20 changer transitions 0/196 dead transitions. [2022-12-11 19:01:23,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 196 transitions, 778 flow [2022-12-11 19:01:23,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 19:01:23,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 19:01:23,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1139 transitions. [2022-12-11 19:01:23,807 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8761538461538462 [2022-12-11 19:01:23,807 INFO L175 Difference]: Start difference. First operand has 155 places, 114 transitions, 314 flow. Second operand 10 states and 1139 transitions. [2022-12-11 19:01:23,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 196 transitions, 778 flow [2022-12-11 19:01:23,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 196 transitions, 764 flow, removed 6 selfloop flow, removed 4 redundant places. [2022-12-11 19:01:23,850 INFO L231 Difference]: Finished difference. Result has 145 places, 132 transitions, 443 flow [2022-12-11 19:01:23,851 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=443, PETRI_PLACES=145, PETRI_TRANSITIONS=132} [2022-12-11 19:01:23,852 INFO L295 CegarLoopForPetriNet]: 137 programPoint places, 8 predicate places. [2022-12-11 19:01:23,852 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 132 transitions, 443 flow [2022-12-11 19:01:23,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 106.0) internal successors, (636), 6 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:01:23,852 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:01:23,853 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:01:23,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 19:01:23,853 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:01:23,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:01:23,854 INFO L85 PathProgramCache]: Analyzing trace with hash -136148779, now seen corresponding path program 1 times [2022-12-11 19:01:23,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:01:23,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947959745] [2022-12-11 19:01:23,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:01:23,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:01:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:01:24,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:01:24,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:01:24,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947959745] [2022-12-11 19:01:24,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947959745] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:01:24,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:01:24,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:01:24,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449542747] [2022-12-11 19:01:24,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:01:24,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:01:24,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:01:24,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:01:24,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:01:24,077 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 130 [2022-12-11 19:01:24,078 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 132 transitions, 443 flow. Second operand has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:01:24,078 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:01:24,078 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 130 [2022-12-11 19:01:24,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:01:26,196 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([276] L880-->L883: Formula: (= v_~main$tmp_guard1~0_2 (ite (= (ite (not (and (= 2 v_~z~0_5) (= v_~__unbuffered_p1_EAX~0_3 0) (= 2 v_~__unbuffered_p3_EAX~0_3) (= v_~__unbuffered_p3_EBX~0_3 0) (= v_~__unbuffered_p0_EAX~0_3 0))) 1 0) 0) 0 1)) InVars {~__unbuffered_p3_EAX~0=v_~__unbuffered_p3_EAX~0_3, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_3, ~z~0=v_~z~0_5, ~__unbuffered_p3_EBX~0=v_~__unbuffered_p3_EBX~0_3, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_3} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_3, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_3, ~__unbuffered_p3_EAX~0=v_~__unbuffered_p3_EAX~0_3, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_2, ~z~0=v_~z~0_5, ~__unbuffered_p3_EBX~0=v_~__unbuffered_p3_EBX~0_3} AuxVars[] AssignedVars[~main$tmp_guard1~0][223], [44#L825true, Black: 189#(and (= ~__unbuffered_cnt~0 0) (<= ~main$tmp_guard0~0 0) (<= 0 ~main$tmp_guard0~0)), Black: 185#(and (<= ~main$tmp_guard0~0 0) (<= 0 ~main$tmp_guard0~0)), P2Thread1of1ForFork2InUse, 47#L795true, Black: 193#(and (= ~__unbuffered_cnt~0 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= ~main$tmp_guard0~0 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_~cond#1| 1)) (<= 0 ~main$tmp_guard0~0)), Black: 191#(and (= ~__unbuffered_cnt~0 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= ~main$tmp_guard0~0 0) (<= 0 ~main$tmp_guard0~0)), P3Thread1of1ForFork0InUse, Black: 197#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= ~main$tmp_guard0~0 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_~cond#1| 1)) (<= 0 ~main$tmp_guard0~0)), 118#L775true, P1Thread1of1ForFork1InUse, P0Thread1of1ForFork3InUse, 147#true, 204#true, 77#L835true, Black: 161#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 165#(and (<= 1 ~main$tmp_guard1~0) (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 169#(and (<= 1 ~main$tmp_guard1~0) (or (<= 1 |ULTIMATE.start___VERIFIER_assert_~expression#1|) (<= (+ |ULTIMATE.start___VERIFIER_assert_~expression#1| 255) 0)) (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 151#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 149#(= ~__unbuffered_p3_EAX~0 0), 182#true, Black: 163#(and (<= 1 ~main$tmp_guard1~0) (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 167#(and (<= 1 ~main$tmp_guard1~0) (or (<= 1 |ULTIMATE.start___VERIFIER_assert_~expression#1|) (<= (+ |ULTIMATE.start___VERIFIER_assert_~expression#1| 255) 0)) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 150#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), 35#L883true]) [2022-12-11 19:01:26,196 INFO L382 tUnfolder$Statistics]: this new event has 91 ancestors and is cut-off event [2022-12-11 19:01:26,196 INFO L385 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-12-11 19:01:26,196 INFO L385 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-12-11 19:01:26,196 INFO L385 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-12-11 19:01:26,296 INFO L130 PetriNetUnfolder]: 10297/17564 cut-off events. [2022-12-11 19:01:26,296 INFO L131 PetriNetUnfolder]: For 31891/33238 co-relation queries the response was YES. [2022-12-11 19:01:26,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55018 conditions, 17564 events. 10297/17564 cut-off events. For 31891/33238 co-relation queries the response was YES. Maximal size of possible extension queue 1449. Compared 149900 event pairs, 761 based on Foata normal form. 262/17026 useless extension candidates. Maximal degree in co-relation 54947. Up to 3908 conditions per place. [2022-12-11 19:01:26,398 INFO L137 encePairwiseOnDemand]: 119/130 looper letters, 108 selfloop transitions, 38 changer transitions 2/239 dead transitions. [2022-12-11 19:01:26,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 239 transitions, 1279 flow [2022-12-11 19:01:26,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:01:26,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:01:26,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1485 transitions. [2022-12-11 19:01:26,401 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.878698224852071 [2022-12-11 19:01:26,401 INFO L175 Difference]: Start difference. First operand has 145 places, 132 transitions, 443 flow. Second operand 13 states and 1485 transitions. [2022-12-11 19:01:26,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 239 transitions, 1279 flow [2022-12-11 19:01:26,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 239 transitions, 1271 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-12-11 19:01:26,480 INFO L231 Difference]: Finished difference. Result has 159 places, 152 transitions, 728 flow [2022-12-11 19:01:26,480 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=728, PETRI_PLACES=159, PETRI_TRANSITIONS=152} [2022-12-11 19:01:26,480 INFO L295 CegarLoopForPetriNet]: 137 programPoint places, 22 predicate places. [2022-12-11 19:01:26,481 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 152 transitions, 728 flow [2022-12-11 19:01:26,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:01:26,481 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:01:26,481 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:01:26,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 19:01:26,481 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:01:26,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:01:26,482 INFO L85 PathProgramCache]: Analyzing trace with hash -33747881, now seen corresponding path program 1 times [2022-12-11 19:01:26,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:01:26,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853325940] [2022-12-11 19:01:26,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:01:26,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:01:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:01:26,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:01:26,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:01:26,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853325940] [2022-12-11 19:01:26,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853325940] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:01:26,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:01:26,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:01:26,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143049842] [2022-12-11 19:01:26,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:01:26,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:01:26,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:01:26,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:01:26,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:01:26,701 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 130 [2022-12-11 19:01:26,701 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 152 transitions, 728 flow. Second operand has 7 states, 7 states have (on average 107.42857142857143) internal successors, (752), 7 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:01:26,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:01:26,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 130 [2022-12-11 19:01:26,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:01:28,026 INFO L130 PetriNetUnfolder]: 3402/10620 cut-off events. [2022-12-11 19:01:28,026 INFO L131 PetriNetUnfolder]: For 33681/42049 co-relation queries the response was YES. [2022-12-11 19:01:28,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36360 conditions, 10620 events. 3402/10620 cut-off events. For 33681/42049 co-relation queries the response was YES. Maximal size of possible extension queue 1162. Compared 130368 event pairs, 456 based on Foata normal form. 195/10063 useless extension candidates. Maximal degree in co-relation 36283. Up to 2730 conditions per place. [2022-12-11 19:01:28,169 INFO L137 encePairwiseOnDemand]: 124/130 looper letters, 64 selfloop transitions, 6 changer transitions 0/200 dead transitions. [2022-12-11 19:01:28,169 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 200 transitions, 1054 flow [2022-12-11 19:01:28,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 19:01:28,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 19:01:28,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 799 transitions. [2022-12-11 19:01:28,172 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.878021978021978 [2022-12-11 19:01:28,172 INFO L175 Difference]: Start difference. First operand has 159 places, 152 transitions, 728 flow. Second operand 7 states and 799 transitions. [2022-12-11 19:01:28,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 200 transitions, 1054 flow [2022-12-11 19:01:28,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 200 transitions, 959 flow, removed 38 selfloop flow, removed 4 redundant places. [2022-12-11 19:01:28,848 INFO L231 Difference]: Finished difference. Result has 166 places, 157 transitions, 698 flow [2022-12-11 19:01:28,849 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=633, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=698, PETRI_PLACES=166, PETRI_TRANSITIONS=157} [2022-12-11 19:01:28,849 INFO L295 CegarLoopForPetriNet]: 137 programPoint places, 29 predicate places. [2022-12-11 19:01:28,849 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 157 transitions, 698 flow [2022-12-11 19:01:28,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 107.42857142857143) internal successors, (752), 7 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:01:28,850 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:01:28,850 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:01:28,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 19:01:28,850 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:01:28,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:01:28,851 INFO L85 PathProgramCache]: Analyzing trace with hash 486513431, now seen corresponding path program 2 times [2022-12-11 19:01:28,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:01:28,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524400319] [2022-12-11 19:01:28,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:01:28,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:01:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:01:29,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:01:29,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:01:29,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524400319] [2022-12-11 19:01:29,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524400319] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:01:29,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:01:29,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 19:01:29,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538093600] [2022-12-11 19:01:29,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:01:29,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 19:01:29,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:01:29,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 19:01:29,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-11 19:01:29,034 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 130 [2022-12-11 19:01:29,035 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 157 transitions, 698 flow. Second operand has 8 states, 8 states have (on average 106.0) internal successors, (848), 8 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:01:29,035 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:01:29,035 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 130 [2022-12-11 19:01:29,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:01:32,719 INFO L130 PetriNetUnfolder]: 17175/30120 cut-off events. [2022-12-11 19:01:32,719 INFO L131 PetriNetUnfolder]: For 82118/85851 co-relation queries the response was YES. [2022-12-11 19:01:32,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103508 conditions, 30120 events. 17175/30120 cut-off events. For 82118/85851 co-relation queries the response was YES. Maximal size of possible extension queue 2371. Compared 285843 event pairs, 864 based on Foata normal form. 214/29108 useless extension candidates. Maximal degree in co-relation 103428. Up to 4301 conditions per place. [2022-12-11 19:01:32,955 INFO L137 encePairwiseOnDemand]: 119/130 looper letters, 104 selfloop transitions, 58 changer transitions 34/289 dead transitions. [2022-12-11 19:01:32,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 289 transitions, 1918 flow [2022-12-11 19:01:32,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 19:01:32,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 19:01:32,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1830 transitions. [2022-12-11 19:01:32,961 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8798076923076923 [2022-12-11 19:01:32,962 INFO L175 Difference]: Start difference. First operand has 166 places, 157 transitions, 698 flow. Second operand 16 states and 1830 transitions. [2022-12-11 19:01:32,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 289 transitions, 1918 flow [2022-12-11 19:01:34,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 289 transitions, 1915 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-11 19:01:34,250 INFO L231 Difference]: Finished difference. Result has 184 places, 180 transitions, 1132 flow [2022-12-11 19:01:34,251 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=695, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1132, PETRI_PLACES=184, PETRI_TRANSITIONS=180} [2022-12-11 19:01:34,253 INFO L295 CegarLoopForPetriNet]: 137 programPoint places, 47 predicate places. [2022-12-11 19:01:34,253 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 180 transitions, 1132 flow [2022-12-11 19:01:34,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 106.0) internal successors, (848), 8 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:01:34,254 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:01:34,254 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:01:34,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 19:01:34,254 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:01:34,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:01:34,254 INFO L85 PathProgramCache]: Analyzing trace with hash -495986719, now seen corresponding path program 1 times [2022-12-11 19:01:34,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:01:34,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969884783] [2022-12-11 19:01:34,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:01:34,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:01:34,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:01:34,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:01:34,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:01:34,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969884783] [2022-12-11 19:01:34,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969884783] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:01:34,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:01:34,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-11 19:01:34,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253129785] [2022-12-11 19:01:34,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:01:34,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-11 19:01:34,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:01:34,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-11 19:01:34,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-11 19:01:34,505 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 130 [2022-12-11 19:01:34,506 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 180 transitions, 1132 flow. Second operand has 9 states, 9 states have (on average 106.11111111111111) internal successors, (955), 9 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:01:34,506 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:01:34,506 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 130 [2022-12-11 19:01:34,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:01:38,085 INFO L130 PetriNetUnfolder]: 16981/29709 cut-off events. [2022-12-11 19:01:38,085 INFO L131 PetriNetUnfolder]: For 109952/114005 co-relation queries the response was YES. [2022-12-11 19:01:38,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112775 conditions, 29709 events. 16981/29709 cut-off events. For 109952/114005 co-relation queries the response was YES. Maximal size of possible extension queue 2380. Compared 283044 event pairs, 836 based on Foata normal form. 47/28458 useless extension candidates. Maximal degree in co-relation 112742. Up to 4058 conditions per place. [2022-12-11 19:01:38,406 INFO L137 encePairwiseOnDemand]: 119/130 looper letters, 80 selfloop transitions, 59 changer transitions 55/287 dead transitions. [2022-12-11 19:01:38,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 287 transitions, 2119 flow [2022-12-11 19:01:38,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 19:01:38,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 19:01:38,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2129 transitions. [2022-12-11 19:01:38,415 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8619433198380567 [2022-12-11 19:01:38,415 INFO L175 Difference]: Start difference. First operand has 184 places, 180 transitions, 1132 flow. Second operand 19 states and 2129 transitions. [2022-12-11 19:01:38,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 287 transitions, 2119 flow [2022-12-11 19:01:44,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 287 transitions, 1718 flow, removed 157 selfloop flow, removed 15 redundant places. [2022-12-11 19:01:44,028 INFO L231 Difference]: Finished difference. Result has 191 places, 175 transitions, 941 flow [2022-12-11 19:01:44,028 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=941, PETRI_PLACES=191, PETRI_TRANSITIONS=175} [2022-12-11 19:01:44,029 INFO L295 CegarLoopForPetriNet]: 137 programPoint places, 54 predicate places. [2022-12-11 19:01:44,029 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 175 transitions, 941 flow [2022-12-11 19:01:44,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 106.11111111111111) internal successors, (955), 9 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:01:44,030 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:01:44,030 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:01:44,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 19:01:44,030 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:01:44,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:01:44,031 INFO L85 PathProgramCache]: Analyzing trace with hash -633066613, now seen corresponding path program 1 times [2022-12-11 19:01:44,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:01:44,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344055694] [2022-12-11 19:01:44,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:01:44,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:01:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:01:44,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:01:44,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:01:44,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344055694] [2022-12-11 19:01:44,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344055694] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:01:44,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:01:44,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 19:01:44,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494929337] [2022-12-11 19:01:44,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:01:44,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 19:01:44,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:01:44,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 19:01:44,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-11 19:01:44,326 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 130 [2022-12-11 19:01:44,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 175 transitions, 941 flow. Second operand has 8 states, 8 states have (on average 102.25) internal successors, (818), 8 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:01:44,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:01:44,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 130 [2022-12-11 19:01:44,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:01:45,924 INFO L130 PetriNetUnfolder]: 5244/16740 cut-off events. [2022-12-11 19:01:45,925 INFO L131 PetriNetUnfolder]: For 38220/41201 co-relation queries the response was YES. [2022-12-11 19:01:46,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54722 conditions, 16740 events. 5244/16740 cut-off events. For 38220/41201 co-relation queries the response was YES. Maximal size of possible extension queue 2526. Compared 236506 event pairs, 116 based on Foata normal form. 2/15619 useless extension candidates. Maximal degree in co-relation 54632. Up to 2136 conditions per place. [2022-12-11 19:01:46,092 INFO L137 encePairwiseOnDemand]: 118/130 looper letters, 31 selfloop transitions, 7 changer transitions 31/212 dead transitions. [2022-12-11 19:01:46,093 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 212 transitions, 1265 flow [2022-12-11 19:01:46,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-11 19:01:46,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-11 19:01:46,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1152 transitions. [2022-12-11 19:01:46,095 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8055944055944056 [2022-12-11 19:01:46,095 INFO L175 Difference]: Start difference. First operand has 191 places, 175 transitions, 941 flow. Second operand 11 states and 1152 transitions. [2022-12-11 19:01:46,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 212 transitions, 1265 flow [2022-12-11 19:01:48,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 212 transitions, 1084 flow, removed 46 selfloop flow, removed 17 redundant places. [2022-12-11 19:01:48,305 INFO L231 Difference]: Finished difference. Result has 190 places, 172 transitions, 836 flow [2022-12-11 19:01:48,305 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=836, PETRI_PLACES=190, PETRI_TRANSITIONS=172} [2022-12-11 19:01:48,306 INFO L295 CegarLoopForPetriNet]: 137 programPoint places, 53 predicate places. [2022-12-11 19:01:48,306 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 172 transitions, 836 flow [2022-12-11 19:01:48,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 102.25) internal successors, (818), 8 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:01:48,306 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:01:48,306 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:01:48,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-11 19:01:48,307 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:01:48,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:01:48,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1265238819, now seen corresponding path program 2 times [2022-12-11 19:01:48,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:01:48,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066532651] [2022-12-11 19:01:48,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:01:48,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:01:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:01:49,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:01:49,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:01:49,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066532651] [2022-12-11 19:01:49,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066532651] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:01:49,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:01:49,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-11 19:01:49,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181471740] [2022-12-11 19:01:49,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:01:49,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-11 19:01:49,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:01:49,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-11 19:01:49,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-11 19:01:49,043 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 130 [2022-12-11 19:01:49,044 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 172 transitions, 836 flow. Second operand has 11 states, 11 states have (on average 102.27272727272727) internal successors, (1125), 11 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:01:49,044 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:01:49,044 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 130 [2022-12-11 19:01:49,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:01:50,005 INFO L130 PetriNetUnfolder]: 2682/8845 cut-off events. [2022-12-11 19:01:50,005 INFO L131 PetriNetUnfolder]: For 14234/14501 co-relation queries the response was YES. [2022-12-11 19:01:50,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24768 conditions, 8845 events. 2682/8845 cut-off events. For 14234/14501 co-relation queries the response was YES. Maximal size of possible extension queue 1148. Compared 112991 event pairs, 34 based on Foata normal form. 1/8396 useless extension candidates. Maximal degree in co-relation 24732. Up to 989 conditions per place. [2022-12-11 19:01:50,065 INFO L137 encePairwiseOnDemand]: 119/130 looper letters, 33 selfloop transitions, 9 changer transitions 6/195 dead transitions. [2022-12-11 19:01:50,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 195 transitions, 1014 flow [2022-12-11 19:01:50,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-11 19:01:50,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-11 19:01:50,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1149 transitions. [2022-12-11 19:01:50,072 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8034965034965035 [2022-12-11 19:01:50,072 INFO L175 Difference]: Start difference. First operand has 190 places, 172 transitions, 836 flow. Second operand 11 states and 1149 transitions. [2022-12-11 19:01:50,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 195 transitions, 1014 flow [2022-12-11 19:01:50,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 195 transitions, 967 flow, removed 20 selfloop flow, removed 10 redundant places. [2022-12-11 19:01:50,599 INFO L231 Difference]: Finished difference. Result has 189 places, 178 transitions, 865 flow [2022-12-11 19:01:50,599 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=865, PETRI_PLACES=189, PETRI_TRANSITIONS=178} [2022-12-11 19:01:50,601 INFO L295 CegarLoopForPetriNet]: 137 programPoint places, 52 predicate places. [2022-12-11 19:01:50,601 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 178 transitions, 865 flow [2022-12-11 19:01:50,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 102.27272727272727) internal successors, (1125), 11 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:01:50,602 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:01:50,602 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:01:50,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-11 19:01:50,602 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:01:50,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:01:50,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1683479785, now seen corresponding path program 3 times [2022-12-11 19:01:50,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:01:50,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334571525] [2022-12-11 19:01:50,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:01:50,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:01:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-11 19:01:50,644 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-11 19:01:50,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-11 19:01:50,743 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-11 19:01:50,744 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-11 19:01:50,745 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-12-11 19:01:50,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-12-11 19:01:50,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-12-11 19:01:50,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-12-11 19:01:50,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-12-11 19:01:50,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2022-12-11 19:01:50,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-11 19:01:50,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-11 19:01:50,754 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1] [2022-12-11 19:01:50,759 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 19:01:50,759 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 19:01:50,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 07:01:50 BasicIcfg [2022-12-11 19:01:50,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 19:01:50,863 INFO L158 Benchmark]: Toolchain (without parser) took 33494.98ms. Allocated memory was 195.0MB in the beginning and 4.6GB in the end (delta: 4.4GB). Free memory was 169.6MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2022-12-11 19:01:50,864 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 195.0MB. Free memory was 171.9MB in the beginning and 171.8MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 19:01:50,864 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.55ms. Allocated memory is still 195.0MB. Free memory was 169.0MB in the beginning and 141.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-12-11 19:01:50,864 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.49ms. Allocated memory is still 195.0MB. Free memory was 141.8MB in the beginning and 139.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 19:01:50,864 INFO L158 Benchmark]: Boogie Preprocessor took 35.75ms. Allocated memory is still 195.0MB. Free memory was 139.2MB in the beginning and 137.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 19:01:50,864 INFO L158 Benchmark]: RCFGBuilder took 615.12ms. Allocated memory is still 195.0MB. Free memory was 137.1MB in the beginning and 102.5MB in the end (delta: 34.6MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2022-12-11 19:01:50,865 INFO L158 Benchmark]: TraceAbstraction took 32296.46ms. Allocated memory was 195.0MB in the beginning and 4.6GB in the end (delta: 4.4GB). Free memory was 101.4MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-12-11 19:01:50,866 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 195.0MB. Free memory was 171.9MB in the beginning and 171.8MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 474.55ms. Allocated memory is still 195.0MB. Free memory was 169.0MB in the beginning and 141.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.49ms. Allocated memory is still 195.0MB. Free memory was 141.8MB in the beginning and 139.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.75ms. Allocated memory is still 195.0MB. Free memory was 139.2MB in the beginning and 137.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 615.12ms. Allocated memory is still 195.0MB. Free memory was 137.1MB in the beginning and 102.5MB in the end (delta: 34.6MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. * TraceAbstraction took 32296.46ms. Allocated memory was 195.0MB in the beginning and 4.6GB in the end (delta: 4.4GB). Free memory was 101.4MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L711] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L713] 0 int __unbuffered_p0_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0] [L715] 0 int __unbuffered_p1_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0] [L717] 0 int __unbuffered_p3_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0] [L719] 0 int __unbuffered_p3_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0] [L721] 0 int a = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0] [L722] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0] [L723] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0] [L725] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L726] 0 _Bool x$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0] [L727] 0 int x$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0] [L728] 0 _Bool x$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0] [L729] 0 _Bool x$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0] [L730] 0 _Bool x$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0] [L731] 0 _Bool x$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0] [L732] 0 _Bool x$r_buff0_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0] [L733] 0 _Bool x$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0] [L734] 0 _Bool x$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0] [L735] 0 _Bool x$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0] [L736] 0 _Bool x$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0] [L737] 0 _Bool x$r_buff1_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0] [L738] 0 _Bool x$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0] [L739] 0 int *x$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}] [L740] 0 int x$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0] [L741] 0 _Bool x$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0] [L742] 0 int x$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0] [L743] 0 _Bool x$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0] [L745] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L747] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L748] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L749] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L862] 0 pthread_t t685; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t685={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L863] FCALL, FORK 0 pthread_create(&t685, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t685, ((void *)0), P0, ((void *)0))=-3, t685={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L864] 0 pthread_t t686; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t685={5:0}, t686={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L865] FCALL, FORK 0 pthread_create(&t686, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t686, ((void *)0), P1, ((void *)0))=-2, t685={5:0}, t686={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L866] 0 pthread_t t687; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t685={5:0}, t686={6:0}, t687={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L867] FCALL, FORK 0 pthread_create(&t687, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t687, ((void *)0), P2, ((void *)0))=-1, t685={5:0}, t686={6:0}, t687={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L868] 0 pthread_t t688; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t685={5:0}, t686={6:0}, t687={7:0}, t688={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L869] FCALL, FORK 0 pthread_create(&t688, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t688, ((void *)0), P3, ((void *)0))=0, t685={5:0}, t686={6:0}, t687={7:0}, t688={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L781] 2 x$w_buff1 = x$w_buff0 [L782] 2 x$w_buff0 = 1 [L783] 2 x$w_buff1_used = x$w_buff0_used [L784] 2 x$w_buff0_used = (_Bool)1 [L785] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L785] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L786] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L787] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L788] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L789] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L790] 2 x$r_buff1_thd4 = x$r_buff0_thd4 [L791] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L794] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L811] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L814] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L831] 4 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L834] 4 __unbuffered_p3_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L837] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L753] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L756] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L757] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L758] 1 x$flush_delayed = weak$$choice2 [L759] 1 x$mem_tmp = x [L760] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L761] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L762] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L763] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L764] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L765] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L766] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L767] 1 __unbuffered_p0_EAX = x [L768] 1 x = x$flush_delayed ? x$mem_tmp : x [L769] 1 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, 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=255, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L797] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L798] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L799] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L800] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L801] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, 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=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L840] 4 x = x$w_buff0_used && x$r_buff0_thd4 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd4 ? x$w_buff1 : x) [L841] 4 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd4 ? (_Bool)0 : x$w_buff0_used [L842] 4 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd4 || x$w_buff1_used && x$r_buff1_thd4 ? (_Bool)0 : x$w_buff1_used [L843] 4 x$r_buff0_thd4 = x$w_buff0_used && x$r_buff0_thd4 ? (_Bool)0 : x$r_buff0_thd4 [L844] 4 x$r_buff1_thd4 = x$w_buff0_used && x$r_buff0_thd4 || x$w_buff1_used && x$r_buff1_thd4 ? (_Bool)0 : x$r_buff1_thd4 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, 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=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L817] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L818] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L819] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L820] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L821] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, 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=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L804] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, 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=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L774] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, 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=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L824] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, 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=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L847] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, 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=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L871] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t685={5:0}, t686={6:0}, t687={7:0}, t688={3:0}, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L873] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) VAL [\old(cond)=1, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cond=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L873] RET 0 assume_abort_if_not(main$tmp_guard0) [L875] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L876] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L877] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L878] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L879] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t685={5:0}, t686={6:0}, t687={7:0}, t688={3:0}, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L882] 0 main$tmp_guard1 = !(z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p3_EAX == 2 && __unbuffered_p3_EBX == 0) VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t685={5:0}, t686={6:0}, t687={7:0}, t688={3:0}, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L884] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression VAL [\old(expression)=1, \old(expression)=0, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L19] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] - UnprovableResult [Line: 19]: 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: 867]: 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: 869]: 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: 865]: 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: 863]: 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 9 procedures, 166 locations, 7 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: 32.1s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 28.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 911 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 911 mSDsluCounter, 500 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 404 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1447 IncrementalHoareTripleChecker+Invalid, 1506 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 96 mSDtfsCounter, 1447 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1132occurred in iteration=6, InterpolantAutomatonStates: 103, 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, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 887 NumberOfCodeBlocks, 887 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 777 ConstructedInterpolants, 0 QuantifiedInterpolants, 3410 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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! [2022-12-11 19:01:50,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...