/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_REDUNDANT_FLOW -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 12:02:34,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 12:02:34,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 12:02:34,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 12:02:34,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 12:02:34,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 12:02:34,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 12:02:34,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 12:02:34,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 12:02:34,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 12:02:34,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 12:02:34,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 12:02:34,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 12:02:34,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 12:02:34,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 12:02:34,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 12:02:34,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 12:02:34,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 12:02:34,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 12:02:34,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 12:02:34,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 12:02:34,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 12:02:34,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 12:02:35,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 12:02:35,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 12:02:35,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 12:02:35,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 12:02:35,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 12:02:35,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 12:02:35,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 12:02:35,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 12:02:35,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 12:02:35,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 12:02:35,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 12:02:35,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 12:02:35,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 12:02:35,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 12:02:35,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 12:02:35,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 12:02:35,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 12:02:35,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 12:02:35,017 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-12 12:02:35,039 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 12:02:35,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 12:02:35,041 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 12:02:35,041 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 12:02:35,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 12:02:35,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 12:02:35,042 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 12:02:35,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 12:02:35,042 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 12:02:35,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 12:02:35,043 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 12:02:35,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 12:02:35,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 12:02:35,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 12:02:35,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 12:02:35,043 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 12:02:35,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 12:02:35,044 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 12:02:35,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 12:02:35,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 12:02:35,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 12:02:35,044 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 12:02:35,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 12:02:35,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 12:02:35,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 12:02:35,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 12:02:35,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 12:02:35,054 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 12:02:35,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 12:02:35,054 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 12:02:35,054 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 12:02:35,054 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_REDUNDANT_FLOW [2022-12-12 12:02:35,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 12:02:35,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 12:02:35,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 12:02:35,346 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 12:02:35,346 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 12:02:35,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-12 12:02:36,401 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 12:02:36,611 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 12:02:36,612 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-12 12:02:36,651 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e952f6023/0ec0a03e514e45448d7d9f4407ee6acb/FLAG97271601b [2022-12-12 12:02:36,668 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e952f6023/0ec0a03e514e45448d7d9f4407ee6acb [2022-12-12 12:02:36,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 12:02:36,695 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 12:02:36,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 12:02:36,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 12:02:36,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 12:02:36,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:02:36" (1/1) ... [2022-12-12 12:02:36,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ddf51ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:02:36, skipping insertion in model container [2022-12-12 12:02:36,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:02:36" (1/1) ... [2022-12-12 12:02:36,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 12:02:36,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 12:02:36,957 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/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-12 12:02:37,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,092 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,092 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,092 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,093 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,093 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,093 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,097 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,106 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,110 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,111 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 12:02:37,121 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 12:02:37,131 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/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-12 12:02:37,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,159 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,159 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,159 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,159 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,159 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,161 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,161 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,161 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,162 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,162 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,162 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,162 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,162 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,163 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,163 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,166 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,167 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,167 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,167 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,167 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,168 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,174 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,174 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,174 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,175 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,175 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:02:37,175 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:02:37,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 12:02:37,212 INFO L208 MainTranslator]: Completed translation [2022-12-12 12:02:37,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:02:37 WrapperNode [2022-12-12 12:02:37,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 12:02:37,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 12:02:37,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 12:02:37,215 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 12:02:37,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:02:37" (1/1) ... [2022-12-12 12:02:37,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:02:37" (1/1) ... [2022-12-12 12:02:37,265 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2022-12-12 12:02:37,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 12:02:37,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 12:02:37,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 12:02:37,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 12:02:37,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:02:37" (1/1) ... [2022-12-12 12:02:37,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:02:37" (1/1) ... [2022-12-12 12:02:37,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:02:37" (1/1) ... [2022-12-12 12:02:37,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:02:37" (1/1) ... [2022-12-12 12:02:37,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:02:37" (1/1) ... [2022-12-12 12:02:37,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:02:37" (1/1) ... [2022-12-12 12:02:37,295 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:02:37" (1/1) ... [2022-12-12 12:02:37,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:02:37" (1/1) ... [2022-12-12 12:02:37,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 12:02:37,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 12:02:37,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 12:02:37,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 12:02:37,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:02:37" (1/1) ... [2022-12-12 12:02:37,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 12:02:37,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 12:02:37,335 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 12:02:37,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 12:02:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 12:02:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 12:02:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 12:02:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 12:02:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 12:02:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 12:02:37,368 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 12:02:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 12:02:37,368 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 12:02:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 12:02:37,368 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 12:02:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-12 12:02:37,369 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-12 12:02:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 12:02:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 12:02:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 12:02:37,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 12:02:37,370 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 12:02:37,465 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 12:02:37,466 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 12:02:37,615 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 12:02:37,621 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 12:02:37,621 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 12:02:37,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:02:37 BoogieIcfgContainer [2022-12-12 12:02:37,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 12:02:37,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 12:02:37,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 12:02:37,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 12:02:37,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 12:02:36" (1/3) ... [2022-12-12 12:02:37,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62a48a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:02:37, skipping insertion in model container [2022-12-12 12:02:37,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:02:37" (2/3) ... [2022-12-12 12:02:37,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62a48a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:02:37, skipping insertion in model container [2022-12-12 12:02:37,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:02:37" (3/3) ... [2022-12-12 12:02:37,631 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-12 12:02:37,689 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 12:02:37,689 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 12:02:37,689 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 12:02:37,777 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 12:02:37,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 99 transitions, 218 flow [2022-12-12 12:02:37,840 INFO L130 PetriNetUnfolder]: 2/95 cut-off events. [2022-12-12 12:02:37,840 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 12:02:37,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 95 events. 2/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2022-12-12 12:02:37,844 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 99 transitions, 218 flow [2022-12-12 12:02:37,847 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 81 transitions, 174 flow [2022-12-12 12:02:37,858 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 12:02:37,863 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;@37944dc9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 12:02:37,863 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-12 12:02:37,881 INFO L130 PetriNetUnfolder]: 1/80 cut-off events. [2022-12-12 12:02:37,881 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 12:02:37,881 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:02:37,882 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:02:37,882 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 12:02:37,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:02:37,886 INFO L85 PathProgramCache]: Analyzing trace with hash -131963081, now seen corresponding path program 1 times [2022-12-12 12:02:37,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:02:37,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265097608] [2022-12-12 12:02:37,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:02:37,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:02:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:02:38,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:02:38,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:02:38,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265097608] [2022-12-12 12:02:38,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265097608] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:02:38,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:02:38,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 12:02:38,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183199156] [2022-12-12 12:02:38,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:02:38,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 12:02:38,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:02:38,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 12:02:38,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 12:02:38,618 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 99 [2022-12-12 12:02:38,621 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 81 transitions, 174 flow. Second operand has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:38,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:02:38,621 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 99 [2022-12-12 12:02:38,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:02:38,944 INFO L130 PetriNetUnfolder]: 293/799 cut-off events. [2022-12-12 12:02:38,944 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-12-12 12:02:38,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1356 conditions, 799 events. 293/799 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4641 event pairs, 50 based on Foata normal form. 30/797 useless extension candidates. Maximal degree in co-relation 1320. Up to 190 conditions per place. [2022-12-12 12:02:38,955 INFO L137 encePairwiseOnDemand]: 86/99 looper letters, 23 selfloop transitions, 8 changer transitions 44/136 dead transitions. [2022-12-12 12:02:38,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 136 transitions, 440 flow [2022-12-12 12:02:38,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 12:02:38,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 12:02:38,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1069 transitions. [2022-12-12 12:02:38,971 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8306138306138307 [2022-12-12 12:02:38,975 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 12 predicate places. [2022-12-12 12:02:38,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 136 transitions, 440 flow [2022-12-12 12:02:38,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 136 transitions, 428 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-12-12 12:02:38,987 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 136 transitions, 428 flow [2022-12-12 12:02:38,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:38,988 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:02:38,988 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:02:38,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 12:02:38,988 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 12:02:38,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:02:38,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1606034358, now seen corresponding path program 1 times [2022-12-12 12:02:38,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:02:38,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428491373] [2022-12-12 12:02:38,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:02:38,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:02:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:02:39,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:02:39,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:02:39,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428491373] [2022-12-12 12:02:39,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428491373] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:02:39,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:02:39,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 12:02:39,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395948061] [2022-12-12 12:02:39,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:02:39,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 12:02:39,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:02:39,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 12:02:39,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 12:02:39,295 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 99 [2022-12-12 12:02:39,296 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 136 transitions, 428 flow. Second operand has 7 states, 7 states have (on average 78.14285714285714) internal successors, (547), 7 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:39,296 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:02:39,296 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 99 [2022-12-12 12:02:39,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:02:39,649 INFO L130 PetriNetUnfolder]: 409/1185 cut-off events. [2022-12-12 12:02:39,650 INFO L131 PetriNetUnfolder]: For 55/211 co-relation queries the response was YES. [2022-12-12 12:02:39,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2689 conditions, 1185 events. 409/1185 cut-off events. For 55/211 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 8216 event pairs, 30 based on Foata normal form. 30/1187 useless extension candidates. Maximal degree in co-relation 2653. Up to 260 conditions per place. [2022-12-12 12:02:39,673 INFO L137 encePairwiseOnDemand]: 90/99 looper letters, 34 selfloop transitions, 7 changer transitions 146/248 dead transitions. [2022-12-12 12:02:39,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 248 transitions, 1260 flow [2022-12-12 12:02:39,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 12:02:39,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 12:02:39,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1064 transitions. [2022-12-12 12:02:39,677 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8267288267288267 [2022-12-12 12:02:39,677 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 20 predicate places. [2022-12-12 12:02:39,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 248 transitions, 1260 flow [2022-12-12 12:02:39,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 248 transitions, 1250 flow, removed 5 selfloop flow, removed 0 redundant places. [2022-12-12 12:02:39,682 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 248 transitions, 1250 flow [2022-12-12 12:02:39,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.14285714285714) internal successors, (547), 7 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:39,699 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:02:39,700 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:02:39,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 12:02:39,700 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 12:02:39,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:02:39,703 INFO L85 PathProgramCache]: Analyzing trace with hash 877336149, now seen corresponding path program 1 times [2022-12-12 12:02:39,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:02:39,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130499719] [2022-12-12 12:02:39,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:02:39,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:02:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:02:40,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:02:40,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:02:40,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130499719] [2022-12-12 12:02:40,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130499719] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:02:40,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:02:40,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-12 12:02:40,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182886889] [2022-12-12 12:02:40,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:02:40,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 12:02:40,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:02:40,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 12:02:40,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-12 12:02:40,050 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 99 [2022-12-12 12:02:40,051 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 248 transitions, 1250 flow. Second operand has 8 states, 8 states have (on average 78.0) internal successors, (624), 8 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:40,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:02:40,051 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 99 [2022-12-12 12:02:40,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:02:40,379 INFO L130 PetriNetUnfolder]: 492/1489 cut-off events. [2022-12-12 12:02:40,379 INFO L131 PetriNetUnfolder]: For 202/1106 co-relation queries the response was YES. [2022-12-12 12:02:40,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4352 conditions, 1489 events. 492/1489 cut-off events. For 202/1106 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 11708 event pairs, 29 based on Foata normal form. 41/1500 useless extension candidates. Maximal degree in co-relation 4314. Up to 333 conditions per place. [2022-12-12 12:02:40,384 INFO L137 encePairwiseOnDemand]: 89/99 looper letters, 27 selfloop transitions, 10 changer transitions 357/455 dead transitions. [2022-12-12 12:02:40,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 455 transitions, 3284 flow [2022-12-12 12:02:40,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-12 12:02:40,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-12 12:02:40,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1389 transitions. [2022-12-12 12:02:40,387 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8253119429590018 [2022-12-12 12:02:40,388 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 36 predicate places. [2022-12-12 12:02:40,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 455 transitions, 3284 flow [2022-12-12 12:02:40,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 455 transitions, 3164 flow, removed 60 selfloop flow, removed 0 redundant places. [2022-12-12 12:02:40,396 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 455 transitions, 3164 flow [2022-12-12 12:02:40,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 78.0) internal successors, (624), 8 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:40,396 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:02:40,396 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:02:40,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 12:02:40,397 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 12:02:40,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:02:40,398 INFO L85 PathProgramCache]: Analyzing trace with hash -695886266, now seen corresponding path program 1 times [2022-12-12 12:02:40,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:02:40,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421250002] [2022-12-12 12:02:40,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:02:40,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:02:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:02:40,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:02:40,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:02:40,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421250002] [2022-12-12 12:02:40,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421250002] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:02:40,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:02:40,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 12:02:40,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593072691] [2022-12-12 12:02:40,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:02:40,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 12:02:40,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:02:40,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 12:02:40,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 12:02:40,545 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 99 [2022-12-12 12:02:40,545 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 455 transitions, 3164 flow. Second operand has 7 states, 7 states have (on average 78.42857142857143) internal successors, (549), 7 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:40,545 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:02:40,545 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 99 [2022-12-12 12:02:40,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:02:40,864 INFO L130 PetriNetUnfolder]: 535/1804 cut-off events. [2022-12-12 12:02:40,864 INFO L131 PetriNetUnfolder]: For 518/3020 co-relation queries the response was YES. [2022-12-12 12:02:40,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5974 conditions, 1804 events. 535/1804 cut-off events. For 518/3020 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 15864 event pairs, 9 based on Foata normal form. 63/1837 useless extension candidates. Maximal degree in co-relation 5933. Up to 426 conditions per place. [2022-12-12 12:02:40,870 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 32 selfloop transitions, 9 changer transitions 465/567 dead transitions. [2022-12-12 12:02:40,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 567 transitions, 4976 flow [2022-12-12 12:02:40,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 12:02:40,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 12:02:40,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1067 transitions. [2022-12-12 12:02:40,873 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8290598290598291 [2022-12-12 12:02:40,873 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 48 predicate places. [2022-12-12 12:02:40,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 567 transitions, 4976 flow [2022-12-12 12:02:40,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 567 transitions, 4896 flow, removed 40 selfloop flow, removed 0 redundant places. [2022-12-12 12:02:40,882 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 567 transitions, 4896 flow [2022-12-12 12:02:40,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.42857142857143) internal successors, (549), 7 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:40,883 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:02:40,883 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:02:40,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 12:02:40,883 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 12:02:40,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:02:40,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1659734394, now seen corresponding path program 1 times [2022-12-12 12:02:40,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:02:40,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125561049] [2022-12-12 12:02:40,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:02:40,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:02:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:02:41,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:02:41,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:02:41,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125561049] [2022-12-12 12:02:41,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125561049] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:02:41,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:02:41,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 12:02:41,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616267274] [2022-12-12 12:02:41,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:02:41,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 12:02:41,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:02:41,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 12:02:41,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-12 12:02:41,014 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 99 [2022-12-12 12:02:41,015 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 567 transitions, 4896 flow. Second operand has 7 states, 7 states have (on average 81.85714285714286) internal successors, (573), 7 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:41,015 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:02:41,015 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 99 [2022-12-12 12:02:41,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:02:41,644 INFO L130 PetriNetUnfolder]: 1881/4965 cut-off events. [2022-12-12 12:02:41,645 INFO L131 PetriNetUnfolder]: For 4483/14415 co-relation queries the response was YES. [2022-12-12 12:02:41,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19136 conditions, 4965 events. 1881/4965 cut-off events. For 4483/14415 co-relation queries the response was YES. Maximal size of possible extension queue 595. Compared 49992 event pairs, 6 based on Foata normal form. 57/4945 useless extension candidates. Maximal degree in co-relation 19093. Up to 1122 conditions per place. [2022-12-12 12:02:41,666 INFO L137 encePairwiseOnDemand]: 91/99 looper letters, 28 selfloop transitions, 6 changer transitions 1066/1171 dead transitions. [2022-12-12 12:02:41,667 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 1171 transitions, 12402 flow [2022-12-12 12:02:41,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 12:02:41,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 12:02:41,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1092 transitions. [2022-12-12 12:02:41,670 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8484848484848485 [2022-12-12 12:02:41,672 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 60 predicate places. [2022-12-12 12:02:41,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 1171 transitions, 12402 flow [2022-12-12 12:02:41,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 1171 transitions, 12314 flow, removed 44 selfloop flow, removed 0 redundant places. [2022-12-12 12:02:41,697 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 1171 transitions, 12314 flow [2022-12-12 12:02:41,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 81.85714285714286) internal successors, (573), 7 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:41,698 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:02:41,698 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:02:41,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 12:02:41,698 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 12:02:41,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:02:41,701 INFO L85 PathProgramCache]: Analyzing trace with hash 692637465, now seen corresponding path program 1 times [2022-12-12 12:02:41,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:02:41,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417915955] [2022-12-12 12:02:41,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:02:41,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:02:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:02:41,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:02:41,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:02:41,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417915955] [2022-12-12 12:02:41,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417915955] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:02:41,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:02:41,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 12:02:41,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516682771] [2022-12-12 12:02:41,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:02:41,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 12:02:41,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:02:41,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 12:02:41,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-12 12:02:41,870 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 99 [2022-12-12 12:02:41,870 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 1171 transitions, 12314 flow. Second operand has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:41,870 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:02:41,870 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 99 [2022-12-12 12:02:41,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:02:44,829 INFO L130 PetriNetUnfolder]: 10745/23299 cut-off events. [2022-12-12 12:02:44,830 INFO L131 PetriNetUnfolder]: For 13264/20568 co-relation queries the response was YES. [2022-12-12 12:02:44,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67543 conditions, 23299 events. 10745/23299 cut-off events. For 13264/20568 co-relation queries the response was YES. Maximal size of possible extension queue 1722. Compared 263392 event pairs, 515 based on Foata normal form. 190/21817 useless extension candidates. Maximal degree in co-relation 67498. Up to 6105 conditions per place. [2022-12-12 12:02:44,984 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 43 selfloop transitions, 20 changer transitions 754/1137 dead transitions. [2022-12-12 12:02:44,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 1137 transitions, 11804 flow [2022-12-12 12:02:44,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 12:02:44,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 12:02:44,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 858 transitions. [2022-12-12 12:02:44,986 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2022-12-12 12:02:44,989 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 69 predicate places. [2022-12-12 12:02:44,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 1137 transitions, 11804 flow [2022-12-12 12:02:45,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 1137 transitions, 11798 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-12-12 12:02:45,028 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 1137 transitions, 11798 flow [2022-12-12 12:02:45,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:45,029 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:02:45,029 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:02:45,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 12:02:45,030 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 12:02:45,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:02:45,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1601186937, now seen corresponding path program 1 times [2022-12-12 12:02:45,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:02:45,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456365188] [2022-12-12 12:02:45,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:02:45,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:02:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:02:45,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:02:45,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:02:45,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456365188] [2022-12-12 12:02:45,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456365188] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:02:45,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:02:45,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 12:02:45,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217792278] [2022-12-12 12:02:45,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:02:45,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 12:02:45,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:02:45,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 12:02:45,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 12:02:45,178 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 99 [2022-12-12 12:02:45,179 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 1137 transitions, 11798 flow. Second operand has 7 states, 7 states have (on average 81.71428571428571) internal successors, (572), 7 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:45,179 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:02:45,179 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 99 [2022-12-12 12:02:45,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:02:47,681 INFO L130 PetriNetUnfolder]: 8610/18524 cut-off events. [2022-12-12 12:02:47,682 INFO L131 PetriNetUnfolder]: For 10060/18126 co-relation queries the response was YES. [2022-12-12 12:02:47,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57380 conditions, 18524 events. 8610/18524 cut-off events. For 10060/18126 co-relation queries the response was YES. Maximal size of possible extension queue 1890. Compared 201822 event pairs, 96 based on Foata normal form. 839/18070 useless extension candidates. Maximal degree in co-relation 57333. Up to 5974 conditions per place. [2022-12-12 12:02:47,754 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 68 selfloop transitions, 54 changer transitions 533/822 dead transitions. [2022-12-12 12:02:47,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 822 transitions, 8330 flow [2022-12-12 12:02:47,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 12:02:47,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 12:02:47,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1117 transitions. [2022-12-12 12:02:47,756 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8679098679098679 [2022-12-12 12:02:47,757 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 77 predicate places. [2022-12-12 12:02:47,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 822 transitions, 8330 flow [2022-12-12 12:02:47,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 822 transitions, 7981 flow, removed 165 selfloop flow, removed 4 redundant places. [2022-12-12 12:02:47,785 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 822 transitions, 7981 flow [2022-12-12 12:02:47,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 81.71428571428571) internal successors, (572), 7 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:47,786 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:02:47,786 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:02:47,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 12:02:47,786 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 12:02:47,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:02:47,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1378225824, now seen corresponding path program 1 times [2022-12-12 12:02:47,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:02:47,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135045375] [2022-12-12 12:02:47,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:02:47,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:02:47,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:02:47,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:02:47,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:02:47,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135045375] [2022-12-12 12:02:47,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135045375] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:02:47,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:02:47,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-12 12:02:47,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613825916] [2022-12-12 12:02:47,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:02:47,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 12:02:47,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:02:47,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 12:02:47,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-12 12:02:47,919 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 99 [2022-12-12 12:02:47,920 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 822 transitions, 7981 flow. Second operand has 8 states, 8 states have (on average 81.625) internal successors, (653), 8 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:47,920 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:02:47,920 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 99 [2022-12-12 12:02:47,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:02:50,016 INFO L130 PetriNetUnfolder]: 7545/16802 cut-off events. [2022-12-12 12:02:50,016 INFO L131 PetriNetUnfolder]: For 10340/22042 co-relation queries the response was YES. [2022-12-12 12:02:50,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55605 conditions, 16802 events. 7545/16802 cut-off events. For 10340/22042 co-relation queries the response was YES. Maximal size of possible extension queue 1993. Compared 188723 event pairs, 6 based on Foata normal form. 1073/16988 useless extension candidates. Maximal degree in co-relation 55557. Up to 3323 conditions per place. [2022-12-12 12:02:50,073 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 50 selfloop transitions, 106 changer transitions 352/593 dead transitions. [2022-12-12 12:02:50,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 593 transitions, 5823 flow [2022-12-12 12:02:50,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-12 12:02:50,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-12 12:02:50,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1375 transitions. [2022-12-12 12:02:50,082 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8680555555555556 [2022-12-12 12:02:50,083 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 85 predicate places. [2022-12-12 12:02:50,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 593 transitions, 5823 flow [2022-12-12 12:02:50,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 593 transitions, 5562 flow, removed 97 selfloop flow, removed 7 redundant places. [2022-12-12 12:02:50,104 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 593 transitions, 5562 flow [2022-12-12 12:02:50,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 81.625) internal successors, (653), 8 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:50,104 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:02:50,105 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:02:50,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 12:02:50,105 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 12:02:50,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:02:50,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1362014531, now seen corresponding path program 1 times [2022-12-12 12:02:50,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:02:50,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624565736] [2022-12-12 12:02:50,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:02:50,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:02:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:02:50,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:02:50,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:02:50,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624565736] [2022-12-12 12:02:50,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624565736] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:02:50,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:02:50,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 12:02:50,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20530858] [2022-12-12 12:02:50,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:02:50,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 12:02:50,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:02:50,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 12:02:50,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-12 12:02:50,230 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 99 [2022-12-12 12:02:50,230 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 593 transitions, 5562 flow. Second operand has 7 states, 7 states have (on average 76.85714285714286) internal successors, (538), 7 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:50,231 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:02:50,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 99 [2022-12-12 12:02:50,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:02:51,866 INFO L130 PetriNetUnfolder]: 10077/21593 cut-off events. [2022-12-12 12:02:51,866 INFO L131 PetriNetUnfolder]: For 10267/27007 co-relation queries the response was YES. [2022-12-12 12:02:51,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71224 conditions, 21593 events. 10077/21593 cut-off events. For 10267/27007 co-relation queries the response was YES. Maximal size of possible extension queue 2597. Compared 245265 event pairs, 5 based on Foata normal form. 353/20519 useless extension candidates. Maximal degree in co-relation 71171. Up to 4587 conditions per place. [2022-12-12 12:02:51,987 INFO L137 encePairwiseOnDemand]: 86/99 looper letters, 49 selfloop transitions, 19 changer transitions 515/769 dead transitions. [2022-12-12 12:02:51,987 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 769 transitions, 8562 flow [2022-12-12 12:02:51,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-12 12:02:51,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-12 12:02:51,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1123 transitions. [2022-12-12 12:02:51,989 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8102453102453102 [2022-12-12 12:02:51,990 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 91 predicate places. [2022-12-12 12:02:51,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 769 transitions, 8562 flow [2022-12-12 12:02:52,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 769 transitions, 8532 flow, removed 15 selfloop flow, removed 0 redundant places. [2022-12-12 12:02:52,016 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 769 transitions, 8532 flow [2022-12-12 12:02:52,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.85714285714286) internal successors, (538), 7 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:52,017 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:02:52,017 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:02:52,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 12:02:52,017 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 12:02:52,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:02:52,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1051060739, now seen corresponding path program 2 times [2022-12-12 12:02:52,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:02:52,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929920341] [2022-12-12 12:02:52,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:02:52,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:02:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:02:52,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:02:52,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:02:52,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929920341] [2022-12-12 12:02:52,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929920341] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:02:52,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:02:52,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 12:02:52,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439892135] [2022-12-12 12:02:52,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:02:52,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 12:02:52,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:02:52,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 12:02:52,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-12 12:02:52,167 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 99 [2022-12-12 12:02:52,167 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 769 transitions, 8532 flow. Second operand has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:52,167 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:02:52,167 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 99 [2022-12-12 12:02:52,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:02:54,928 INFO L130 PetriNetUnfolder]: 12771/27112 cut-off events. [2022-12-12 12:02:54,929 INFO L131 PetriNetUnfolder]: For 16818/38478 co-relation queries the response was YES. [2022-12-12 12:02:55,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90451 conditions, 27112 events. 12771/27112 cut-off events. For 16818/38478 co-relation queries the response was YES. Maximal size of possible extension queue 3264. Compared 315663 event pairs, 4 based on Foata normal form. 449/26072 useless extension candidates. Maximal degree in co-relation 90397. Up to 5699 conditions per place. [2022-12-12 12:02:55,034 INFO L137 encePairwiseOnDemand]: 93/99 looper letters, 40 selfloop transitions, 6 changer transitions 596/841 dead transitions. [2022-12-12 12:02:55,035 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 841 transitions, 10548 flow [2022-12-12 12:02:55,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 12:02:55,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 12:02:55,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 598 transitions. [2022-12-12 12:02:55,036 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.862914862914863 [2022-12-12 12:02:55,036 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 97 predicate places. [2022-12-12 12:02:55,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 841 transitions, 10548 flow [2022-12-12 12:02:55,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 841 transitions, 10420 flow, removed 64 selfloop flow, removed 0 redundant places. [2022-12-12 12:02:55,066 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 841 transitions, 10420 flow [2022-12-12 12:02:55,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:55,067 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:02:55,067 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:02:55,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-12 12:02:55,067 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 12:02:55,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:02:55,068 INFO L85 PathProgramCache]: Analyzing trace with hash -2032049285, now seen corresponding path program 3 times [2022-12-12 12:02:55,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:02:55,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140599345] [2022-12-12 12:02:55,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:02:55,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:02:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:02:55,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:02:55,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:02:55,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140599345] [2022-12-12 12:02:55,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140599345] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:02:55,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:02:55,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-12 12:02:55,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302415983] [2022-12-12 12:02:55,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:02:55,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 12:02:55,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:02:55,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 12:02:55,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-12 12:02:55,174 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 99 [2022-12-12 12:02:55,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 841 transitions, 10420 flow. Second operand has 9 states, 9 states have (on average 81.55555555555556) internal successors, (734), 9 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:55,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:02:55,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 99 [2022-12-12 12:02:55,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:02:58,943 INFO L130 PetriNetUnfolder]: 12343/25344 cut-off events. [2022-12-12 12:02:58,944 INFO L131 PetriNetUnfolder]: For 26050/70209 co-relation queries the response was YES. [2022-12-12 12:02:59,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102328 conditions, 25344 events. 12343/25344 cut-off events. For 26050/70209 co-relation queries the response was YES. Maximal size of possible extension queue 3252. Compared 291937 event pairs, 4 based on Foata normal form. 2299/26020 useless extension candidates. Maximal degree in co-relation 102274. Up to 5700 conditions per place. [2022-12-12 12:02:59,071 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 0 selfloop transitions, 0 changer transitions 555/555 dead transitions. [2022-12-12 12:02:59,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 555 transitions, 6972 flow [2022-12-12 12:02:59,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-12 12:02:59,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-12 12:02:59,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1612 transitions. [2022-12-12 12:02:59,088 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8569909622541202 [2022-12-12 12:02:59,090 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 83 predicate places. [2022-12-12 12:02:59,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 555 transitions, 6972 flow [2022-12-12 12:02:59,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 555 transitions, 6435 flow, removed 151 selfloop flow, removed 14 redundant places. [2022-12-12 12:02:59,148 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 555 transitions, 6435 flow [2022-12-12 12:02:59,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.55555555555556) internal successors, (734), 9 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:02:59,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-12 12:02:59,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2022-12-12 12:02:59,154 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-12 12:02:59,154 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-12 12:02:59,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-12 12:02:59,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-12 12:02:59,160 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:02:59,163 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 12:02:59,163 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 12:02:59,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 12:02:59 BasicIcfg [2022-12-12 12:02:59,184 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 12:02:59,184 INFO L158 Benchmark]: Toolchain (without parser) took 22512.44ms. Allocated memory was 187.7MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 151.6MB in the beginning and 3.6GB in the end (delta: -3.4GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-12-12 12:02:59,185 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 187.7MB. Free memory was 166.0MB in the beginning and 165.9MB in the end (delta: 67.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 12:02:59,186 INFO L158 Benchmark]: CACSL2BoogieTranslator took 516.06ms. Allocated memory is still 187.7MB. Free memory was 151.0MB in the beginning and 127.4MB in the end (delta: 23.7MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-12 12:02:59,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.69ms. Allocated memory is still 187.7MB. Free memory was 127.4MB in the beginning and 125.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 12:02:59,190 INFO L158 Benchmark]: Boogie Preprocessor took 31.04ms. Allocated memory is still 187.7MB. Free memory was 125.4MB in the beginning and 123.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 12:02:59,192 INFO L158 Benchmark]: RCFGBuilder took 325.15ms. Allocated memory is still 187.7MB. Free memory was 123.8MB in the beginning and 109.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-12 12:02:59,192 INFO L158 Benchmark]: TraceAbstraction took 21557.99ms. Allocated memory was 187.7MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 108.1MB in the beginning and 3.6GB in the end (delta: -3.5GB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2022-12-12 12:02:59,193 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 187.7MB. Free memory was 166.0MB in the beginning and 165.9MB in the end (delta: 67.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 516.06ms. Allocated memory is still 187.7MB. Free memory was 151.0MB in the beginning and 127.4MB in the end (delta: 23.7MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.69ms. Allocated memory is still 187.7MB. Free memory was 127.4MB in the beginning and 125.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.04ms. Allocated memory is still 187.7MB. Free memory was 125.4MB in the beginning and 123.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 325.15ms. Allocated memory is still 187.7MB. Free memory was 123.8MB in the beginning and 109.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 21557.99ms. Allocated memory was 187.7MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 108.1MB in the beginning and 3.6GB in the end (delta: -3.5GB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 128 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.3s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 21.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 18.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 815 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 815 mSDsluCounter, 779 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 593 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1024 IncrementalHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 186 mSDtfsCounter, 1024 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12314occurred in iteration=5, InterpolantAutomatonStates: 148, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 1621 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 707 NumberOfCodeBlocks, 707 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 696 ConstructedInterpolants, 0 QuantifiedInterpolants, 3028 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 12:02:59,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...