/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 14:31:59,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 14:31:59,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 14:31:59,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 14:31:59,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 14:31:59,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 14:31:59,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 14:31:59,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 14:31:59,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 14:31:59,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 14:31:59,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 14:31:59,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 14:31:59,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 14:31:59,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 14:31:59,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 14:31:59,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 14:31:59,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 14:31:59,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 14:31:59,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 14:31:59,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 14:31:59,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 14:31:59,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 14:31:59,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 14:31:59,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 14:31:59,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 14:31:59,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 14:31:59,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 14:31:59,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 14:31:59,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 14:31:59,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 14:31:59,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 14:31:59,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 14:31:59,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 14:31:59,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 14:31:59,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 14:31:59,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 14:31:59,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 14:31:59,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 14:31:59,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 14:31:59,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 14:31:59,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 14:31:59,701 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 14:31:59,734 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 14:31:59,734 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 14:31:59,736 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 14:31:59,736 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 14:31:59,736 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 14:31:59,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 14:31:59,737 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 14:31:59,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 14:31:59,737 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 14:31:59,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 14:31:59,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 14:31:59,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 14:31:59,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 14:31:59,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 14:31:59,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 14:31:59,739 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 14:31:59,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 14:31:59,739 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 14:31:59,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 14:31:59,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 14:31:59,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 14:31:59,740 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 14:31:59,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 14:31:59,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:31:59,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 14:31:59,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 14:31:59,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 14:31:59,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 14:31:59,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 14:31:59,741 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 14:31:59,741 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 14:32:00,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 14:32:00,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 14:32:00,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 14:32:00,052 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 14:32:00,052 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 14:32:00,054 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 14:32:01,138 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 14:32:01,463 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 14:32:01,464 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 14:32:01,493 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6027a9e1e/0ecf51e208d44888a134a01c1d26f073/FLAG09cc0558b [2022-12-12 14:32:01,511 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6027a9e1e/0ecf51e208d44888a134a01c1d26f073 [2022-12-12 14:32:01,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 14:32:01,514 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 14:32:01,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 14:32:01,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 14:32:01,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 14:32:01,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:32:01" (1/1) ... [2022-12-12 14:32:01,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c41331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:32:01, skipping insertion in model container [2022-12-12 14:32:01,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:32:01" (1/1) ... [2022-12-12 14:32:01,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 14:32:01,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 14:32:01,725 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/mix023_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-12 14:32:01,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,914 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,914 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,933 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,955 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,955 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,962 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,963 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,963 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,964 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,965 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:01,965 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:01,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:32:01,977 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 14:32:01,988 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/mix023_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-12 14:32:02,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,040 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,059 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:32:02,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:32:02,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:32:02,108 INFO L208 MainTranslator]: Completed translation [2022-12-12 14:32:02,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:32:02 WrapperNode [2022-12-12 14:32:02,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 14:32:02,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 14:32:02,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 14:32:02,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 14:32:02,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:32:02" (1/1) ... [2022-12-12 14:32:02,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:32:02" (1/1) ... [2022-12-12 14:32:02,189 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2022-12-12 14:32:02,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 14:32:02,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 14:32:02,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 14:32:02,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 14:32:02,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:32:02" (1/1) ... [2022-12-12 14:32:02,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:32:02" (1/1) ... [2022-12-12 14:32:02,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:32:02" (1/1) ... [2022-12-12 14:32:02,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:32:02" (1/1) ... [2022-12-12 14:32:02,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:32:02" (1/1) ... [2022-12-12 14:32:02,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:32:02" (1/1) ... [2022-12-12 14:32:02,227 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:32:02" (1/1) ... [2022-12-12 14:32:02,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:32:02" (1/1) ... [2022-12-12 14:32:02,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 14:32:02,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 14:32:02,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 14:32:02,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 14:32:02,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:32:02" (1/1) ... [2022-12-12 14:32:02,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:32:02,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 14:32:02,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 14:32:02,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 14:32:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 14:32:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 14:32:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 14:32:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 14:32:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 14:32:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 14:32:02,318 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 14:32:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 14:32:02,319 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 14:32:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 14:32:02,320 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 14:32:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-12 14:32:02,320 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-12 14:32:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 14:32:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 14:32:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 14:32:02,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 14:32:02,322 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 14:32:02,488 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 14:32:02,489 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 14:32:02,778 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 14:32:02,898 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 14:32:02,899 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 14:32:02,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:32:02 BoogieIcfgContainer [2022-12-12 14:32:02,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 14:32:02,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 14:32:02,903 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 14:32:02,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 14:32:02,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 02:32:01" (1/3) ... [2022-12-12 14:32:02,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6f13a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:32:02, skipping insertion in model container [2022-12-12 14:32:02,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:32:02" (2/3) ... [2022-12-12 14:32:02,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6f13a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:32:02, skipping insertion in model container [2022-12-12 14:32:02,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:32:02" (3/3) ... [2022-12-12 14:32:02,908 INFO L112 eAbstractionObserver]: Analyzing ICFG mix023_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 14:32:02,924 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 14:32:02,924 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 14:32:02,924 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 14:32:02,975 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 14:32:03,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 132 transitions, 284 flow [2022-12-12 14:32:03,100 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2022-12-12 14:32:03,100 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 14:32:03,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 128 events. 2/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-12-12 14:32:03,106 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 132 transitions, 284 flow [2022-12-12 14:32:03,110 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 128 transitions, 268 flow [2022-12-12 14:32:03,111 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 14:32:03,127 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 128 transitions, 268 flow [2022-12-12 14:32:03,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 128 transitions, 268 flow [2022-12-12 14:32:03,156 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2022-12-12 14:32:03,156 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 14:32:03,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 128 events. 2/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-12-12 14:32:03,161 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 128 transitions, 268 flow [2022-12-12 14:32:03,162 INFO L226 LiptonReduction]: Number of co-enabled transitions 3300 [2022-12-12 14:32:09,479 INFO L241 LiptonReduction]: Total number of compositions: 100 [2022-12-12 14:32:09,495 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 14:32:09,502 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;@6178f49a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 14:32:09,502 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-12 14:32:09,506 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2022-12-12 14:32:09,507 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 14:32:09,507 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:32:09,507 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-12 14:32:09,508 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:32:09,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:32:09,511 INFO L85 PathProgramCache]: Analyzing trace with hash 587970, now seen corresponding path program 1 times [2022-12-12 14:32:09,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:32:09,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058358563] [2022-12-12 14:32:09,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:32:09,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:32:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:32:09,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:32:09,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:32:09,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058358563] [2022-12-12 14:32:09,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058358563] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:32:09,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:32:09,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 14:32:09,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943158496] [2022-12-12 14:32:09,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:32:09,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:32:09,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:32:09,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:32:09,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:32:09,933 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 83 [2022-12-12 14:32:09,934 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 83 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:32:09,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:32:09,938 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 83 [2022-12-12 14:32:09,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:32:18,065 INFO L130 PetriNetUnfolder]: 66790/97245 cut-off events. [2022-12-12 14:32:18,065 INFO L131 PetriNetUnfolder]: For 142/142 co-relation queries the response was YES. [2022-12-12 14:32:18,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185534 conditions, 97245 events. 66790/97245 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 4701. Compared 803142 event pairs, 9970 based on Foata normal form. 0/63178 useless extension candidates. Maximal degree in co-relation 185522. Up to 73765 conditions per place. [2022-12-12 14:32:18,428 INFO L137 encePairwiseOnDemand]: 79/83 looper letters, 48 selfloop transitions, 2 changer transitions 71/138 dead transitions. [2022-12-12 14:32:18,428 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 138 transitions, 537 flow [2022-12-12 14:32:18,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:32:18,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:32:18,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2022-12-12 14:32:18,438 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7108433734939759 [2022-12-12 14:32:18,440 INFO L175 Difference]: Start difference. First operand has 96 places, 83 transitions, 178 flow. Second operand 3 states and 177 transitions. [2022-12-12 14:32:18,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 138 transitions, 537 flow [2022-12-12 14:32:18,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 138 transitions, 530 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-12 14:32:18,449 INFO L231 Difference]: Finished difference. Result has 92 places, 45 transitions, 102 flow [2022-12-12 14:32:18,450 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=92, PETRI_TRANSITIONS=45} [2022-12-12 14:32:18,454 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -4 predicate places. [2022-12-12 14:32:18,454 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 45 transitions, 102 flow [2022-12-12 14:32:18,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:32:18,455 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:32:18,455 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:32:18,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 14:32:18,455 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:32:18,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:32:18,463 INFO L85 PathProgramCache]: Analyzing trace with hash 31152267, now seen corresponding path program 1 times [2022-12-12 14:32:18,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:32:18,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714264714] [2022-12-12 14:32:18,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:32:18,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:32:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:32:18,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:32:18,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:32:18,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714264714] [2022-12-12 14:32:18,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714264714] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:32:18,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:32:18,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 14:32:18,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972171176] [2022-12-12 14:32:18,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:32:18,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:32:18,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:32:18,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:32:18,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:32:18,741 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 83 [2022-12-12 14:32:18,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:32:18,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:32:18,742 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 83 [2022-12-12 14:32:18,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:32:20,640 INFO L130 PetriNetUnfolder]: 16864/23442 cut-off events. [2022-12-12 14:32:20,640 INFO L131 PetriNetUnfolder]: For 1111/1111 co-relation queries the response was YES. [2022-12-12 14:32:20,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47345 conditions, 23442 events. 16864/23442 cut-off events. For 1111/1111 co-relation queries the response was YES. Maximal size of possible extension queue 999. Compared 138076 event pairs, 3844 based on Foata normal form. 0/18529 useless extension candidates. Maximal degree in co-relation 47335. Up to 21396 conditions per place. [2022-12-12 14:32:20,758 INFO L137 encePairwiseOnDemand]: 79/83 looper letters, 42 selfloop transitions, 3 changer transitions 2/61 dead transitions. [2022-12-12 14:32:20,758 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 61 transitions, 232 flow [2022-12-12 14:32:20,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:32:20,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:32:20,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2022-12-12 14:32:20,760 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.37349397590361444 [2022-12-12 14:32:20,760 INFO L175 Difference]: Start difference. First operand has 92 places, 45 transitions, 102 flow. Second operand 3 states and 93 transitions. [2022-12-12 14:32:20,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 61 transitions, 232 flow [2022-12-12 14:32:20,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 61 transitions, 226 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-12 14:32:20,762 INFO L231 Difference]: Finished difference. Result has 57 places, 46 transitions, 115 flow [2022-12-12 14:32:20,762 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=115, PETRI_PLACES=57, PETRI_TRANSITIONS=46} [2022-12-12 14:32:20,762 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -39 predicate places. [2022-12-12 14:32:20,763 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 115 flow [2022-12-12 14:32:20,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:32:20,763 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:32:20,763 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:32:20,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 14:32:20,763 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:32:20,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:32:20,764 INFO L85 PathProgramCache]: Analyzing trace with hash 965721219, now seen corresponding path program 1 times [2022-12-12 14:32:20,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:32:20,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894252699] [2022-12-12 14:32:20,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:32:20,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:32:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:32:20,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:32:20,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:32:20,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894252699] [2022-12-12 14:32:20,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894252699] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:32:20,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:32:20,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 14:32:20,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947675052] [2022-12-12 14:32:20,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:32:20,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:32:20,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:32:20,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:32:20,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:32:20,939 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2022-12-12 14:32:20,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 115 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:32:20,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:32:20,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2022-12-12 14:32:20,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:32:23,920 INFO L130 PetriNetUnfolder]: 34621/48862 cut-off events. [2022-12-12 14:32:23,921 INFO L131 PetriNetUnfolder]: For 5130/5130 co-relation queries the response was YES. [2022-12-12 14:32:24,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101347 conditions, 48862 events. 34621/48862 cut-off events. For 5130/5130 co-relation queries the response was YES. Maximal size of possible extension queue 1602. Compared 314420 event pairs, 5167 based on Foata normal form. 1560/42666 useless extension candidates. Maximal degree in co-relation 101336. Up to 23523 conditions per place. [2022-12-12 14:32:24,235 INFO L137 encePairwiseOnDemand]: 74/83 looper letters, 77 selfloop transitions, 10 changer transitions 0/98 dead transitions. [2022-12-12 14:32:24,236 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 98 transitions, 421 flow [2022-12-12 14:32:24,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 14:32:24,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 14:32:24,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 131 transitions. [2022-12-12 14:32:24,240 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.39457831325301207 [2022-12-12 14:32:24,240 INFO L175 Difference]: Start difference. First operand has 57 places, 46 transitions, 115 flow. Second operand 4 states and 131 transitions. [2022-12-12 14:32:24,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 98 transitions, 421 flow [2022-12-12 14:32:24,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 98 transitions, 414 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-12 14:32:24,245 INFO L231 Difference]: Finished difference. Result has 61 places, 54 transitions, 196 flow [2022-12-12 14:32:24,245 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=61, PETRI_TRANSITIONS=54} [2022-12-12 14:32:24,246 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -35 predicate places. [2022-12-12 14:32:24,246 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 54 transitions, 196 flow [2022-12-12 14:32:24,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:32:24,247 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:32:24,247 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:32:24,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 14:32:24,247 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:32:24,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:32:24,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1973050648, now seen corresponding path program 1 times [2022-12-12 14:32:24,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:32:24,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518855123] [2022-12-12 14:32:24,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:32:24,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:32:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:32:24,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:32:24,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:32:24,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518855123] [2022-12-12 14:32:24,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518855123] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:32:24,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:32:24,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 14:32:24,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768096399] [2022-12-12 14:32:24,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:32:24,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:32:24,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:32:24,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:32:24,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:32:24,387 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 83 [2022-12-12 14:32:24,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 54 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:32:24,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:32:24,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 83 [2022-12-12 14:32:24,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:32:27,120 INFO L130 PetriNetUnfolder]: 26443/38127 cut-off events. [2022-12-12 14:32:27,121 INFO L131 PetriNetUnfolder]: For 16012/16625 co-relation queries the response was YES. [2022-12-12 14:32:27,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86889 conditions, 38127 events. 26443/38127 cut-off events. For 16012/16625 co-relation queries the response was YES. Maximal size of possible extension queue 1526. Compared 251039 event pairs, 8210 based on Foata normal form. 355/31072 useless extension candidates. Maximal degree in co-relation 86874. Up to 26007 conditions per place. [2022-12-12 14:32:27,385 INFO L137 encePairwiseOnDemand]: 80/83 looper letters, 45 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2022-12-12 14:32:27,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 68 transitions, 320 flow [2022-12-12 14:32:27,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:32:27,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:32:27,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2022-12-12 14:32:27,387 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.36947791164658633 [2022-12-12 14:32:27,387 INFO L175 Difference]: Start difference. First operand has 61 places, 54 transitions, 196 flow. Second operand 3 states and 92 transitions. [2022-12-12 14:32:27,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 68 transitions, 320 flow [2022-12-12 14:32:27,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 68 transitions, 318 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-12 14:32:27,395 INFO L231 Difference]: Finished difference. Result has 63 places, 54 transitions, 205 flow [2022-12-12 14:32:27,396 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=205, PETRI_PLACES=63, PETRI_TRANSITIONS=54} [2022-12-12 14:32:27,397 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -33 predicate places. [2022-12-12 14:32:27,397 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 54 transitions, 205 flow [2022-12-12 14:32:27,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:32:27,398 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:32:27,398 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:32:27,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 14:32:27,398 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:32:27,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:32:27,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1035016710, now seen corresponding path program 1 times [2022-12-12 14:32:27,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:32:27,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440841929] [2022-12-12 14:32:27,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:32:27,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:32:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:32:27,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:32:27,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:32:27,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440841929] [2022-12-12 14:32:27,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440841929] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:32:27,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:32:27,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 14:32:27,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335019295] [2022-12-12 14:32:27,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:32:27,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:32:27,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:32:27,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:32:27,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:32:27,528 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 83 [2022-12-12 14:32:27,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 54 transitions, 205 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:32:27,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:32:27,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 83 [2022-12-12 14:32:27,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:32:31,407 INFO L130 PetriNetUnfolder]: 41493/58066 cut-off events. [2022-12-12 14:32:31,407 INFO L131 PetriNetUnfolder]: For 26305/28275 co-relation queries the response was YES. [2022-12-12 14:32:31,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133101 conditions, 58066 events. 41493/58066 cut-off events. For 26305/28275 co-relation queries the response was YES. Maximal size of possible extension queue 2360. Compared 382386 event pairs, 12264 based on Foata normal form. 387/39241 useless extension candidates. Maximal degree in co-relation 133084. Up to 55813 conditions per place. [2022-12-12 14:32:31,757 INFO L137 encePairwiseOnDemand]: 69/83 looper letters, 54 selfloop transitions, 13 changer transitions 0/85 dead transitions. [2022-12-12 14:32:31,758 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 85 transitions, 433 flow [2022-12-12 14:32:31,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:32:31,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:32:31,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2022-12-12 14:32:31,759 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.40963855421686746 [2022-12-12 14:32:31,759 INFO L175 Difference]: Start difference. First operand has 63 places, 54 transitions, 205 flow. Second operand 3 states and 102 transitions. [2022-12-12 14:32:31,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 85 transitions, 433 flow [2022-12-12 14:32:31,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 85 transitions, 427 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-12 14:32:31,768 INFO L231 Difference]: Finished difference. Result has 64 places, 66 transitions, 288 flow [2022-12-12 14:32:31,768 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=288, PETRI_PLACES=64, PETRI_TRANSITIONS=66} [2022-12-12 14:32:31,769 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -32 predicate places. [2022-12-12 14:32:31,769 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 66 transitions, 288 flow [2022-12-12 14:32:31,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:32:31,769 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:32:31,770 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:32:31,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 14:32:31,770 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:32:31,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:32:31,770 INFO L85 PathProgramCache]: Analyzing trace with hash 37492465, now seen corresponding path program 1 times [2022-12-12 14:32:31,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:32:31,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430988765] [2022-12-12 14:32:31,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:32:31,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:32:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:32:31,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:32:31,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:32:31,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430988765] [2022-12-12 14:32:31,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430988765] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:32:31,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:32:31,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 14:32:31,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176390685] [2022-12-12 14:32:31,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:32:31,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:32:31,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:32:31,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:32:31,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:32:31,972 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2022-12-12 14:32:31,972 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 66 transitions, 288 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:32:31,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:32:31,972 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2022-12-12 14:32:31,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:32:39,417 INFO L130 PetriNetUnfolder]: 75575/106268 cut-off events. [2022-12-12 14:32:39,417 INFO L131 PetriNetUnfolder]: For 69213/72363 co-relation queries the response was YES. [2022-12-12 14:32:39,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304563 conditions, 106268 events. 75575/106268 cut-off events. For 69213/72363 co-relation queries the response was YES. Maximal size of possible extension queue 4139. Compared 757558 event pairs, 23806 based on Foata normal form. 1446/86263 useless extension candidates. Maximal degree in co-relation 304545. Up to 57049 conditions per place. [2022-12-12 14:32:39,967 INFO L137 encePairwiseOnDemand]: 73/83 looper letters, 110 selfloop transitions, 19 changer transitions 2/146 dead transitions. [2022-12-12 14:32:39,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 146 transitions, 883 flow [2022-12-12 14:32:39,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 14:32:39,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 14:32:39,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 138 transitions. [2022-12-12 14:32:39,968 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.41566265060240964 [2022-12-12 14:32:39,969 INFO L175 Difference]: Start difference. First operand has 64 places, 66 transitions, 288 flow. Second operand 4 states and 138 transitions. [2022-12-12 14:32:39,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 146 transitions, 883 flow [2022-12-12 14:32:39,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 146 transitions, 854 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-12 14:32:39,979 INFO L231 Difference]: Finished difference. Result has 69 places, 82 transitions, 470 flow [2022-12-12 14:32:39,980 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=470, PETRI_PLACES=69, PETRI_TRANSITIONS=82} [2022-12-12 14:32:39,982 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -27 predicate places. [2022-12-12 14:32:39,982 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 82 transitions, 470 flow [2022-12-12 14:32:39,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:32:39,982 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:32:39,983 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:32:39,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 14:32:39,983 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:32:39,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:32:39,983 INFO L85 PathProgramCache]: Analyzing trace with hash -870940741, now seen corresponding path program 1 times [2022-12-12 14:32:39,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:32:39,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750422522] [2022-12-12 14:32:39,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:32:39,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:32:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:32:40,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:32:40,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:32:40,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750422522] [2022-12-12 14:32:40,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750422522] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:32:40,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:32:40,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 14:32:40,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125108304] [2022-12-12 14:32:40,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:32:40,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:32:40,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:32:40,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:32:40,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:32:40,108 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 83 [2022-12-12 14:32:40,108 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 82 transitions, 470 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:32:40,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:32:40,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 83 [2022-12-12 14:32:40,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:32:44,808 INFO L130 PetriNetUnfolder]: 43769/65459 cut-off events. [2022-12-12 14:32:44,808 INFO L131 PetriNetUnfolder]: For 51242/56813 co-relation queries the response was YES. [2022-12-12 14:32:45,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192796 conditions, 65459 events. 43769/65459 cut-off events. For 51242/56813 co-relation queries the response was YES. Maximal size of possible extension queue 2802. Compared 497671 event pairs, 7102 based on Foata normal form. 2398/45695 useless extension candidates. Maximal degree in co-relation 192774. Up to 54559 conditions per place. [2022-12-12 14:32:45,158 INFO L137 encePairwiseOnDemand]: 69/83 looper letters, 84 selfloop transitions, 25 changer transitions 6/142 dead transitions. [2022-12-12 14:32:45,158 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 142 transitions, 1010 flow [2022-12-12 14:32:45,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 14:32:45,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 14:32:45,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 141 transitions. [2022-12-12 14:32:45,159 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4246987951807229 [2022-12-12 14:32:45,160 INFO L175 Difference]: Start difference. First operand has 69 places, 82 transitions, 470 flow. Second operand 4 states and 141 transitions. [2022-12-12 14:32:45,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 142 transitions, 1010 flow [2022-12-12 14:32:45,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 142 transitions, 1010 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-12 14:32:45,174 INFO L231 Difference]: Finished difference. Result has 73 places, 93 transitions, 608 flow [2022-12-12 14:32:45,174 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=608, PETRI_PLACES=73, PETRI_TRANSITIONS=93} [2022-12-12 14:32:45,174 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -23 predicate places. [2022-12-12 14:32:45,174 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 93 transitions, 608 flow [2022-12-12 14:32:45,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:32:45,175 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:32:45,175 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] [2022-12-12 14:32:45,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 14:32:45,175 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:32:45,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:32:45,175 INFO L85 PathProgramCache]: Analyzing trace with hash 372523067, now seen corresponding path program 1 times [2022-12-12 14:32:45,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:32:45,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971689921] [2022-12-12 14:32:45,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:32:45,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:32:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:32:45,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:32:45,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:32:45,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971689921] [2022-12-12 14:32:45,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971689921] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:32:45,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:32:45,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 14:32:45,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487322099] [2022-12-12 14:32:45,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:32:45,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 14:32:45,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:32:45,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 14:32:45,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-12 14:32:45,646 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2022-12-12 14:32:45,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 93 transitions, 608 flow. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:32:45,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:32:45,646 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2022-12-12 14:32:45,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:32:56,206 INFO L130 PetriNetUnfolder]: 87883/130200 cut-off events. [2022-12-12 14:32:56,206 INFO L131 PetriNetUnfolder]: For 215725/236957 co-relation queries the response was YES. [2022-12-12 14:32:56,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 482736 conditions, 130200 events. 87883/130200 cut-off events. For 215725/236957 co-relation queries the response was YES. Maximal size of possible extension queue 6081. Compared 1061071 event pairs, 11018 based on Foata normal form. 5261/112199 useless extension candidates. Maximal degree in co-relation 482711. Up to 67473 conditions per place. [2022-12-12 14:32:57,103 INFO L137 encePairwiseOnDemand]: 66/83 looper letters, 313 selfloop transitions, 144 changer transitions 80/556 dead transitions. [2022-12-12 14:32:57,103 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 556 transitions, 4681 flow [2022-12-12 14:32:57,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-12 14:32:57,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-12 14:32:57,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 458 transitions. [2022-12-12 14:32:57,105 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.39414802065404475 [2022-12-12 14:32:57,105 INFO L175 Difference]: Start difference. First operand has 73 places, 93 transitions, 608 flow. Second operand 14 states and 458 transitions. [2022-12-12 14:32:57,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 556 transitions, 4681 flow [2022-12-12 14:32:57,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 556 transitions, 4381 flow, removed 74 selfloop flow, removed 2 redundant places. [2022-12-12 14:32:57,387 INFO L231 Difference]: Finished difference. Result has 95 places, 237 transitions, 2109 flow [2022-12-12 14:32:57,387 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=558, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2109, PETRI_PLACES=95, PETRI_TRANSITIONS=237} [2022-12-12 14:32:57,388 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -1 predicate places. [2022-12-12 14:32:57,388 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 237 transitions, 2109 flow [2022-12-12 14:32:57,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:32:57,388 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:32:57,388 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] [2022-12-12 14:32:57,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 14:32:57,389 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:32:57,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:32:57,389 INFO L85 PathProgramCache]: Analyzing trace with hash 2133920483, now seen corresponding path program 1 times [2022-12-12 14:32:57,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:32:57,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869839303] [2022-12-12 14:32:57,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:32:57,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:32:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:32:57,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:32:57,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:32:57,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869839303] [2022-12-12 14:32:57,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869839303] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:32:57,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:32:57,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 14:32:57,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636466213] [2022-12-12 14:32:57,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:32:57,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 14:32:57,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:32:57,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 14:32:57,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-12 14:32:57,582 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 83 [2022-12-12 14:32:57,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 237 transitions, 2109 flow. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:32:57,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:32:57,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 83 [2022-12-12 14:32:57,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:33:05,009 INFO L130 PetriNetUnfolder]: 48257/74916 cut-off events. [2022-12-12 14:33:05,009 INFO L131 PetriNetUnfolder]: For 237568/243018 co-relation queries the response was YES. [2022-12-12 14:33:05,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313076 conditions, 74916 events. 48257/74916 cut-off events. For 237568/243018 co-relation queries the response was YES. Maximal size of possible extension queue 3006. Compared 620368 event pairs, 2105 based on Foata normal form. 7023/55962 useless extension candidates. Maximal degree in co-relation 313040. Up to 35218 conditions per place. [2022-12-12 14:33:05,465 INFO L137 encePairwiseOnDemand]: 69/83 looper letters, 268 selfloop transitions, 37 changer transitions 86/454 dead transitions. [2022-12-12 14:33:05,465 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 454 transitions, 4512 flow [2022-12-12 14:33:05,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 14:33:05,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 14:33:05,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 178 transitions. [2022-12-12 14:33:05,467 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.42891566265060244 [2022-12-12 14:33:05,467 INFO L175 Difference]: Start difference. First operand has 95 places, 237 transitions, 2109 flow. Second operand 5 states and 178 transitions. [2022-12-12 14:33:05,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 454 transitions, 4512 flow [2022-12-12 14:33:07,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 454 transitions, 4510 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-12-12 14:33:07,391 INFO L231 Difference]: Finished difference. Result has 100 places, 231 transitions, 2126 flow [2022-12-12 14:33:07,391 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=2096, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2126, PETRI_PLACES=100, PETRI_TRANSITIONS=231} [2022-12-12 14:33:07,392 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, 4 predicate places. [2022-12-12 14:33:07,392 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 231 transitions, 2126 flow [2022-12-12 14:33:07,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:33:07,392 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:33:07,393 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] [2022-12-12 14:33:07,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 14:33:07,393 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:33:07,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:33:07,393 INFO L85 PathProgramCache]: Analyzing trace with hash 215108696, now seen corresponding path program 1 times [2022-12-12 14:33:07,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:33:07,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277390279] [2022-12-12 14:33:07,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:33:07,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:33:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:33:08,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:33:08,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:33:08,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277390279] [2022-12-12 14:33:08,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277390279] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:33:08,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:33:08,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 14:33:08,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440886320] [2022-12-12 14:33:08,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:33:08,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 14:33:08,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:33:08,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 14:33:08,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 14:33:08,055 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 83 [2022-12-12 14:33:08,056 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 231 transitions, 2126 flow. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:33:08,056 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:33:08,056 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 83 [2022-12-12 14:33:08,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand