/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-0612a5f-m [2022-09-20 20:42:03,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 20:42:03,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 20:42:03,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 20:42:03,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 20:42:03,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 20:42:03,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 20:42:03,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 20:42:03,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 20:42:03,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 20:42:03,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 20:42:03,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 20:42:03,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 20:42:03,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 20:42:03,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 20:42:03,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 20:42:03,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 20:42:03,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 20:42:03,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 20:42:03,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 20:42:03,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 20:42:03,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 20:42:03,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 20:42:03,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 20:42:03,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-20 20:42:03,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-20 20:42:03,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-20 20:42:03,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-20 20:42:03,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-20 20:42:03,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-20 20:42:03,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-20 20:42:03,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-20 20:42:03,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-20 20:42:03,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-20 20:42:03,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-20 20:42:03,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-20 20:42:03,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-20 20:42:03,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-20 20:42:03,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 20:42:03,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 20:42:03,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 20:42:03,324 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 [2022-09-20 20:42:03,345 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 20:42:03,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 20:42:03,346 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 20:42:03,346 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 20:42:03,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 20:42:03,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 20:42:03,347 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 20:42:03,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 20:42:03,347 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 20:42:03,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 20:42:03,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 20:42:03,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 20:42:03,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 20:42:03,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 20:42:03,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 20:42:03,348 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 20:42:03,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 20:42:03,348 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 20:42:03,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 20:42:03,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 20:42:03,348 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 20:42:03,349 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 20:42:03,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 20:42:03,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 20:42:03,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 20:42:03,349 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 20:42:03,349 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 20:42:03,349 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 20:42:03,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 20:42:03,350 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 20:42:03,350 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 20:42:03,350 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 20:42:03,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 20:42:03,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 20:42:03,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 20:42:03,553 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 20:42:03,556 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 20:42:03,557 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-09-20 20:42:03,614 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fae313fd/d79f6cb076a6454eaad227348311b56e/FLAG9be66f45f [2022-09-20 20:42:04,026 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 20:42:04,026 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-09-20 20:42:04,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fae313fd/d79f6cb076a6454eaad227348311b56e/FLAG9be66f45f [2022-09-20 20:42:04,051 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fae313fd/d79f6cb076a6454eaad227348311b56e [2022-09-20 20:42:04,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 20:42:04,055 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 20:42:04,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 20:42:04,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 20:42:04,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 20:42:04,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:42:04" (1/1) ... [2022-09-20 20:42:04,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60bc1aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:42:04, skipping insertion in model container [2022-09-20 20:42:04,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:42:04" (1/1) ... [2022-09-20 20:42:04,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 20:42:04,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 20:42:04,256 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-09-20 20:42:04,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 20:42:04,408 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 20:42:04,423 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-09-20 20:42:04,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 20:42:04,518 INFO L208 MainTranslator]: Completed translation [2022-09-20 20:42:04,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:42:04 WrapperNode [2022-09-20 20:42:04,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 20:42:04,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 20:42:04,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 20:42:04,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 20:42:04,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:42:04" (1/1) ... [2022-09-20 20:42:04,553 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:42:04" (1/1) ... [2022-09-20 20:42:04,576 INFO L138 Inliner]: procedures = 177, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2022-09-20 20:42:04,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 20:42:04,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 20:42:04,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 20:42:04,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 20:42:04,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:42:04" (1/1) ... [2022-09-20 20:42:04,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:42:04" (1/1) ... [2022-09-20 20:42:04,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:42:04" (1/1) ... [2022-09-20 20:42:04,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:42:04" (1/1) ... [2022-09-20 20:42:04,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:42:04" (1/1) ... [2022-09-20 20:42:04,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:42:04" (1/1) ... [2022-09-20 20:42:04,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:42:04" (1/1) ... [2022-09-20 20:42:04,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 20:42:04,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 20:42:04,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 20:42:04,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 20:42:04,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:42:04" (1/1) ... [2022-09-20 20:42:04,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 20:42:04,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 20:42:04,657 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) [2022-09-20 20:42:04,677 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 [2022-09-20 20:42:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 20:42:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-20 20:42:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 20:42:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 20:42:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 20:42:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-20 20:42:04,695 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-20 20:42:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-20 20:42:04,695 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-20 20:42:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-20 20:42:04,695 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-20 20:42:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-20 20:42:04,695 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-20 20:42:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 20:42:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-20 20:42:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 20:42:04,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 20:42:04,697 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-20 20:42:04,807 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 20:42:04,808 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 20:42:04,997 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 20:42:05,003 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 20:42:05,003 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 20:42:05,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:42:05 BoogieIcfgContainer [2022-09-20 20:42:05,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 20:42:05,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 20:42:05,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 20:42:05,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 20:42:05,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 08:42:04" (1/3) ... [2022-09-20 20:42:05,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755f61db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 08:42:05, skipping insertion in model container [2022-09-20 20:42:05,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:42:04" (2/3) ... [2022-09-20 20:42:05,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755f61db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 08:42:05, skipping insertion in model container [2022-09-20 20:42:05,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:42:05" (3/3) ... [2022-09-20 20:42:05,014 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-09-20 20:42:05,030 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 20:42:05,031 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-20 20:42:05,031 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 20:42:05,101 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-20 20:42:05,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 111 transitions, 242 flow [2022-09-20 20:42:05,220 INFO L130 PetriNetUnfolder]: 2/107 cut-off events. [2022-09-20 20:42:05,221 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 20:42:05,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 107 events. 2/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 85. Up to 2 conditions per place. [2022-09-20 20:42:05,225 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 111 transitions, 242 flow [2022-09-20 20:42:05,229 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 91 transitions, 194 flow [2022-09-20 20:42:05,245 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 20:42:05,254 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;@2649546e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 20:42:05,254 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-09-20 20:42:05,286 INFO L130 PetriNetUnfolder]: 1/90 cut-off events. [2022-09-20 20:42:05,286 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 20:42:05,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:42:05,287 INFO L208 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] [2022-09-20 20:42:05,288 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)] === [2022-09-20 20:42:05,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:42:05,293 INFO L85 PathProgramCache]: Analyzing trace with hash -535922452, now seen corresponding path program 1 times [2022-09-20 20:42:05,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:42:05,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93265040] [2022-09-20 20:42:05,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:42:05,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:42:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:42:05,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:42:05,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:42:05,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93265040] [2022-09-20 20:42:05,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93265040] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:42:05,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:42:05,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-20 20:42:05,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850810994] [2022-09-20 20:42:05,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:42:05,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-20 20:42:05,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:42:05,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-20 20:42:05,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-20 20:42:05,859 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 111 [2022-09-20 20:42:05,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 91 transitions, 194 flow. Second operand has 6 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 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) [2022-09-20 20:42:05,863 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:42:05,863 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 111 [2022-09-20 20:42:05,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:42:06,128 INFO L130 PetriNetUnfolder]: 287/787 cut-off events. [2022-09-20 20:42:06,128 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-09-20 20:42:06,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1284 conditions, 787 events. 287/787 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4438 event pairs, 98 based on Foata normal form. 18/782 useless extension candidates. Maximal degree in co-relation 1242. Up to 276 conditions per place. [2022-09-20 20:42:06,136 INFO L137 encePairwiseOnDemand]: 101/111 looper letters, 20 selfloop transitions, 5 changer transitions 31/128 dead transitions. [2022-09-20 20:42:06,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 128 transitions, 389 flow [2022-09-20 20:42:06,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-20 20:42:06,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-09-20 20:42:06,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 861 transitions. [2022-09-20 20:42:06,151 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8618618618618619 [2022-09-20 20:42:06,152 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 861 transitions. [2022-09-20 20:42:06,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 861 transitions. [2022-09-20 20:42:06,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:42:06,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 861 transitions. [2022-09-20 20:42:06,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 95.66666666666667) internal successors, (861), 9 states have internal predecessors, (861), 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) [2022-09-20 20:42:06,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 111.0) internal successors, (1110), 10 states have internal predecessors, (1110), 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) [2022-09-20 20:42:06,168 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 111.0) internal successors, (1110), 10 states have internal predecessors, (1110), 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) [2022-09-20 20:42:06,170 INFO L175 Difference]: Start difference. First operand has 103 places, 91 transitions, 194 flow. Second operand 9 states and 861 transitions. [2022-09-20 20:42:06,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 128 transitions, 389 flow [2022-09-20 20:42:06,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 128 transitions, 382 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-20 20:42:06,177 INFO L231 Difference]: Finished difference. Result has 114 places, 94 transitions, 257 flow [2022-09-20 20:42:06,179 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=257, PETRI_PLACES=114, PETRI_TRANSITIONS=94} [2022-09-20 20:42:06,181 INFO L287 CegarLoopForPetriNet]: 103 programPoint places, 11 predicate places. [2022-09-20 20:42:06,182 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 94 transitions, 257 flow [2022-09-20 20:42:06,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 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) [2022-09-20 20:42:06,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:42:06,183 INFO L208 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] [2022-09-20 20:42:06,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 20:42:06,183 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)] === [2022-09-20 20:42:06,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:42:06,184 INFO L85 PathProgramCache]: Analyzing trace with hash 161379723, now seen corresponding path program 1 times [2022-09-20 20:42:06,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:42:06,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084178804] [2022-09-20 20:42:06,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:42:06,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:42:06,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:42:06,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:42:06,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:42:06,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084178804] [2022-09-20 20:42:06,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084178804] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:42:06,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:42:06,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 20:42:06,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408667944] [2022-09-20 20:42:06,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:42:06,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 20:42:06,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:42:06,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 20:42:06,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-20 20:42:06,448 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 111 [2022-09-20 20:42:06,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 94 transitions, 257 flow. Second operand has 7 states, 7 states have (on average 91.14285714285714) internal successors, (638), 7 states have internal predecessors, (638), 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) [2022-09-20 20:42:06,449 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:42:06,449 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 111 [2022-09-20 20:42:06,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:42:06,691 INFO L130 PetriNetUnfolder]: 187/527 cut-off events. [2022-09-20 20:42:06,691 INFO L131 PetriNetUnfolder]: For 1298/1523 co-relation queries the response was YES. [2022-09-20 20:42:06,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1821 conditions, 527 events. 187/527 cut-off events. For 1298/1523 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2381 event pairs, 13 based on Foata normal form. 14/516 useless extension candidates. Maximal degree in co-relation 1774. Up to 225 conditions per place. [2022-09-20 20:42:06,699 INFO L137 encePairwiseOnDemand]: 104/111 looper letters, 21 selfloop transitions, 4 changer transitions 28/125 dead transitions. [2022-09-20 20:42:06,699 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 125 transitions, 635 flow [2022-09-20 20:42:06,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-20 20:42:06,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-09-20 20:42:06,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 941 transitions. [2022-09-20 20:42:06,706 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8477477477477477 [2022-09-20 20:42:06,706 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 941 transitions. [2022-09-20 20:42:06,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 941 transitions. [2022-09-20 20:42:06,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:42:06,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 941 transitions. [2022-09-20 20:42:06,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 94.1) internal successors, (941), 10 states have internal predecessors, (941), 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) [2022-09-20 20:42:06,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 111.0) internal successors, (1221), 11 states have internal predecessors, (1221), 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) [2022-09-20 20:42:06,712 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 111.0) internal successors, (1221), 11 states have internal predecessors, (1221), 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) [2022-09-20 20:42:06,712 INFO L175 Difference]: Start difference. First operand has 114 places, 94 transitions, 257 flow. Second operand 10 states and 941 transitions. [2022-09-20 20:42:06,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 125 transitions, 635 flow [2022-09-20 20:42:06,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 125 transitions, 616 flow, removed 7 selfloop flow, removed 4 redundant places. [2022-09-20 20:42:06,721 INFO L231 Difference]: Finished difference. Result has 120 places, 94 transitions, 271 flow [2022-09-20 20:42:06,721 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=271, PETRI_PLACES=120, PETRI_TRANSITIONS=94} [2022-09-20 20:42:06,722 INFO L287 CegarLoopForPetriNet]: 103 programPoint places, 17 predicate places. [2022-09-20 20:42:06,722 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 94 transitions, 271 flow [2022-09-20 20:42:06,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 91.14285714285714) internal successors, (638), 7 states have internal predecessors, (638), 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) [2022-09-20 20:42:06,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:42:06,723 INFO L208 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] [2022-09-20 20:42:06,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-20 20:42:06,724 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)] === [2022-09-20 20:42:06,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:42:06,725 INFO L85 PathProgramCache]: Analyzing trace with hash -632887251, now seen corresponding path program 1 times [2022-09-20 20:42:06,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:42:06,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257201767] [2022-09-20 20:42:06,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:42:06,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:42:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:42:06,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:42:06,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:42:06,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257201767] [2022-09-20 20:42:06,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257201767] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:42:06,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:42:06,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 20:42:06,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007493509] [2022-09-20 20:42:06,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:42:06,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 20:42:06,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:42:06,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 20:42:06,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-09-20 20:42:06,926 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 111 [2022-09-20 20:42:06,927 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 94 transitions, 271 flow. Second operand has 7 states, 7 states have (on average 89.28571428571429) internal successors, (625), 7 states have internal predecessors, (625), 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) [2022-09-20 20:42:06,927 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:42:06,927 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 111 [2022-09-20 20:42:06,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:42:07,278 INFO L130 PetriNetUnfolder]: 282/759 cut-off events. [2022-09-20 20:42:07,278 INFO L131 PetriNetUnfolder]: For 2032/3004 co-relation queries the response was YES. [2022-09-20 20:42:07,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2615 conditions, 759 events. 282/759 cut-off events. For 2032/3004 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4010 event pairs, 8 based on Foata normal form. 23/752 useless extension candidates. Maximal degree in co-relation 2561. Up to 284 conditions per place. [2022-09-20 20:42:07,285 INFO L137 encePairwiseOnDemand]: 100/111 looper letters, 29 selfloop transitions, 13 changer transitions 50/162 dead transitions. [2022-09-20 20:42:07,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 162 transitions, 984 flow [2022-09-20 20:42:07,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-20 20:42:07,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-09-20 20:42:07,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1572 transitions. [2022-09-20 20:42:07,288 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8330683624801272 [2022-09-20 20:42:07,289 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1572 transitions. [2022-09-20 20:42:07,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1572 transitions. [2022-09-20 20:42:07,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:42:07,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1572 transitions. [2022-09-20 20:42:07,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 92.47058823529412) internal successors, (1572), 17 states have internal predecessors, (1572), 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) [2022-09-20 20:42:07,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 111.0) internal successors, (1998), 18 states have internal predecessors, (1998), 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) [2022-09-20 20:42:07,297 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 111.0) internal successors, (1998), 18 states have internal predecessors, (1998), 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) [2022-09-20 20:42:07,297 INFO L175 Difference]: Start difference. First operand has 120 places, 94 transitions, 271 flow. Second operand 17 states and 1572 transitions. [2022-09-20 20:42:07,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 162 transitions, 984 flow [2022-09-20 20:42:07,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 162 transitions, 918 flow, removed 28 selfloop flow, removed 9 redundant places. [2022-09-20 20:42:07,305 INFO L231 Difference]: Finished difference. Result has 136 places, 101 transitions, 432 flow [2022-09-20 20:42:07,305 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=432, PETRI_PLACES=136, PETRI_TRANSITIONS=101} [2022-09-20 20:42:07,306 INFO L287 CegarLoopForPetriNet]: 103 programPoint places, 33 predicate places. [2022-09-20 20:42:07,306 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 101 transitions, 432 flow [2022-09-20 20:42:07,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 89.28571428571429) internal successors, (625), 7 states have internal predecessors, (625), 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) [2022-09-20 20:42:07,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:42:07,307 INFO L208 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] [2022-09-20 20:42:07,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-20 20:42:07,307 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)] === [2022-09-20 20:42:07,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:42:07,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1387759690, now seen corresponding path program 1 times [2022-09-20 20:42:07,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:42:07,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876314496] [2022-09-20 20:42:07,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:42:07,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:42:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:42:07,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:42:07,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:42:07,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876314496] [2022-09-20 20:42:07,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876314496] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:42:07,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:42:07,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 20:42:07,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307549580] [2022-09-20 20:42:07,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:42:07,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 20:42:07,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:42:07,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 20:42:07,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-09-20 20:42:07,425 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 111 [2022-09-20 20:42:07,426 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 101 transitions, 432 flow. Second operand has 7 states, 7 states have (on average 94.85714285714286) internal successors, (664), 7 states have internal predecessors, (664), 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) [2022-09-20 20:42:07,426 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:42:07,426 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 111 [2022-09-20 20:42:07,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:42:07,601 INFO L130 PetriNetUnfolder]: 97/460 cut-off events. [2022-09-20 20:42:07,601 INFO L131 PetriNetUnfolder]: For 4188/5331 co-relation queries the response was YES. [2022-09-20 20:42:07,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1938 conditions, 460 events. 97/460 cut-off events. For 4188/5331 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2382 event pairs, 13 based on Foata normal form. 18/450 useless extension candidates. Maximal degree in co-relation 1877. Up to 125 conditions per place. [2022-09-20 20:42:07,607 INFO L137 encePairwiseOnDemand]: 103/111 looper letters, 11 selfloop transitions, 4 changer transitions 19/113 dead transitions. [2022-09-20 20:42:07,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 113 transitions, 581 flow [2022-09-20 20:42:07,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-20 20:42:07,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-09-20 20:42:07,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 959 transitions. [2022-09-20 20:42:07,610 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8639639639639639 [2022-09-20 20:42:07,610 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 959 transitions. [2022-09-20 20:42:07,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 959 transitions. [2022-09-20 20:42:07,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:42:07,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 959 transitions. [2022-09-20 20:42:07,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 95.9) internal successors, (959), 10 states have internal predecessors, (959), 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) [2022-09-20 20:42:07,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 111.0) internal successors, (1221), 11 states have internal predecessors, (1221), 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) [2022-09-20 20:42:07,616 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 111.0) internal successors, (1221), 11 states have internal predecessors, (1221), 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) [2022-09-20 20:42:07,616 INFO L175 Difference]: Start difference. First operand has 136 places, 101 transitions, 432 flow. Second operand 10 states and 959 transitions. [2022-09-20 20:42:07,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 113 transitions, 581 flow [2022-09-20 20:42:07,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 113 transitions, 458 flow, removed 58 selfloop flow, removed 13 redundant places. [2022-09-20 20:42:07,628 INFO L231 Difference]: Finished difference. Result has 128 places, 93 transitions, 312 flow [2022-09-20 20:42:07,628 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=312, PETRI_PLACES=128, PETRI_TRANSITIONS=93} [2022-09-20 20:42:07,630 INFO L287 CegarLoopForPetriNet]: 103 programPoint places, 25 predicate places. [2022-09-20 20:42:07,630 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 93 transitions, 312 flow [2022-09-20 20:42:07,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 94.85714285714286) internal successors, (664), 7 states have internal predecessors, (664), 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) [2022-09-20 20:42:07,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:42:07,639 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:42:07,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-20 20:42:07,640 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)] === [2022-09-20 20:42:07,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:42:07,640 INFO L85 PathProgramCache]: Analyzing trace with hash 644322064, now seen corresponding path program 1 times [2022-09-20 20:42:07,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:42:07,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925202804] [2022-09-20 20:42:07,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:42:07,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:42:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:42:07,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:42:07,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:42:07,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925202804] [2022-09-20 20:42:07,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925202804] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:42:07,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:42:07,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 20:42:07,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519612687] [2022-09-20 20:42:07,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:42:07,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 20:42:07,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:42:07,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 20:42:07,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-20 20:42:07,768 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 111 [2022-09-20 20:42:07,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 93 transitions, 312 flow. Second operand has 7 states, 7 states have (on average 91.28571428571429) internal successors, (639), 7 states have internal predecessors, (639), 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) [2022-09-20 20:42:07,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:42:07,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 111 [2022-09-20 20:42:07,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:42:07,900 INFO L130 PetriNetUnfolder]: 45/258 cut-off events. [2022-09-20 20:42:07,901 INFO L131 PetriNetUnfolder]: For 730/870 co-relation queries the response was YES. [2022-09-20 20:42:07,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 829 conditions, 258 events. 45/258 cut-off events. For 730/870 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 921 event pairs, 12 based on Foata normal form. 4/251 useless extension candidates. Maximal degree in co-relation 790. Up to 63 conditions per place. [2022-09-20 20:42:07,904 INFO L137 encePairwiseOnDemand]: 105/111 looper letters, 24 selfloop transitions, 3 changer transitions 16/115 dead transitions. [2022-09-20 20:42:07,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 115 transitions, 628 flow [2022-09-20 20:42:07,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-20 20:42:07,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-09-20 20:42:07,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 843 transitions. [2022-09-20 20:42:07,907 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8438438438438438 [2022-09-20 20:42:07,907 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 843 transitions. [2022-09-20 20:42:07,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 843 transitions. [2022-09-20 20:42:07,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:42:07,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 843 transitions. [2022-09-20 20:42:07,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 93.66666666666667) internal successors, (843), 9 states have internal predecessors, (843), 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) [2022-09-20 20:42:07,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 111.0) internal successors, (1110), 10 states have internal predecessors, (1110), 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) [2022-09-20 20:42:07,912 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 111.0) internal successors, (1110), 10 states have internal predecessors, (1110), 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) [2022-09-20 20:42:07,912 INFO L175 Difference]: Start difference. First operand has 128 places, 93 transitions, 312 flow. Second operand 9 states and 843 transitions. [2022-09-20 20:42:07,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 115 transitions, 628 flow [2022-09-20 20:42:07,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 115 transitions, 496 flow, removed 50 selfloop flow, removed 16 redundant places. [2022-09-20 20:42:07,917 INFO L231 Difference]: Finished difference. Result has 121 places, 93 transitions, 273 flow [2022-09-20 20:42:07,917 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=273, PETRI_PLACES=121, PETRI_TRANSITIONS=93} [2022-09-20 20:42:07,920 INFO L287 CegarLoopForPetriNet]: 103 programPoint places, 18 predicate places. [2022-09-20 20:42:07,921 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 93 transitions, 273 flow [2022-09-20 20:42:07,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 91.28571428571429) internal successors, (639), 7 states have internal predecessors, (639), 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) [2022-09-20 20:42:07,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:42:07,921 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:42:07,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-20 20:42:07,922 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)] === [2022-09-20 20:42:07,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:42:07,923 INFO L85 PathProgramCache]: Analyzing trace with hash -2125818509, now seen corresponding path program 1 times [2022-09-20 20:42:07,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:42:07,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317347528] [2022-09-20 20:42:07,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:42:07,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:42:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:42:08,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:42:08,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:42:08,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317347528] [2022-09-20 20:42:08,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317347528] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:42:08,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:42:08,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 20:42:08,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379228091] [2022-09-20 20:42:08,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:42:08,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 20:42:08,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:42:08,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 20:42:08,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-20 20:42:08,061 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 111 [2022-09-20 20:42:08,063 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 93 transitions, 273 flow. Second operand has 7 states, 7 states have (on average 91.42857142857143) internal successors, (640), 7 states have internal predecessors, (640), 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) [2022-09-20 20:42:08,063 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:42:08,063 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 111 [2022-09-20 20:42:08,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:42:08,173 INFO L130 PetriNetUnfolder]: 29/222 cut-off events. [2022-09-20 20:42:08,173 INFO L131 PetriNetUnfolder]: For 254/296 co-relation queries the response was YES. [2022-09-20 20:42:08,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 543 conditions, 222 events. 29/222 cut-off events. For 254/296 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 744 event pairs, 5 based on Foata normal form. 2/214 useless extension candidates. Maximal degree in co-relation 522. Up to 44 conditions per place. [2022-09-20 20:42:08,175 INFO L137 encePairwiseOnDemand]: 104/111 looper letters, 22 selfloop transitions, 4 changer transitions 10/108 dead transitions. [2022-09-20 20:42:08,175 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 108 transitions, 462 flow [2022-09-20 20:42:08,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-20 20:42:08,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-09-20 20:42:08,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 925 transitions. [2022-09-20 20:42:08,178 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-09-20 20:42:08,178 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 925 transitions. [2022-09-20 20:42:08,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 925 transitions. [2022-09-20 20:42:08,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:42:08,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 925 transitions. [2022-09-20 20:42:08,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 92.5) internal successors, (925), 10 states have internal predecessors, (925), 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) [2022-09-20 20:42:08,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 111.0) internal successors, (1221), 11 states have internal predecessors, (1221), 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) [2022-09-20 20:42:08,183 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 111.0) internal successors, (1221), 11 states have internal predecessors, (1221), 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) [2022-09-20 20:42:08,183 INFO L175 Difference]: Start difference. First operand has 121 places, 93 transitions, 273 flow. Second operand 10 states and 925 transitions. [2022-09-20 20:42:08,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 108 transitions, 462 flow [2022-09-20 20:42:08,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 108 transitions, 426 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-09-20 20:42:08,186 INFO L231 Difference]: Finished difference. Result has 123 places, 93 transitions, 280 flow [2022-09-20 20:42:08,187 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=280, PETRI_PLACES=123, PETRI_TRANSITIONS=93} [2022-09-20 20:42:08,188 INFO L287 CegarLoopForPetriNet]: 103 programPoint places, 20 predicate places. [2022-09-20 20:42:08,189 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 93 transitions, 280 flow [2022-09-20 20:42:08,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 91.42857142857143) internal successors, (640), 7 states have internal predecessors, (640), 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) [2022-09-20 20:42:08,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:42:08,189 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:42:08,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-20 20:42:08,190 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)] === [2022-09-20 20:42:08,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:42:08,190 INFO L85 PathProgramCache]: Analyzing trace with hash 183080956, now seen corresponding path program 1 times [2022-09-20 20:42:08,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:42:08,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278908612] [2022-09-20 20:42:08,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:42:08,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:42:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:42:08,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:42:08,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:42:08,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278908612] [2022-09-20 20:42:08,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278908612] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:42:08,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:42:08,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-09-20 20:42:08,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369075491] [2022-09-20 20:42:08,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:42:08,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-20 20:42:08,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:42:08,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-20 20:42:08,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-09-20 20:42:08,293 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 111 [2022-09-20 20:42:08,294 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 93 transitions, 280 flow. Second operand has 8 states, 8 states have (on average 89.375) internal successors, (715), 8 states have internal predecessors, (715), 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) [2022-09-20 20:42:08,294 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:42:08,294 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 111 [2022-09-20 20:42:08,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:42:08,413 INFO L130 PetriNetUnfolder]: 33/233 cut-off events. [2022-09-20 20:42:08,413 INFO L131 PetriNetUnfolder]: For 312/382 co-relation queries the response was YES. [2022-09-20 20:42:08,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 598 conditions, 233 events. 33/233 cut-off events. For 312/382 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 798 event pairs, 14 based on Foata normal form. 4/225 useless extension candidates. Maximal degree in co-relation 576. Up to 54 conditions per place. [2022-09-20 20:42:08,415 INFO L137 encePairwiseOnDemand]: 103/111 looper letters, 20 selfloop transitions, 4 changer transitions 13/107 dead transitions. [2022-09-20 20:42:08,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 107 transitions, 453 flow [2022-09-20 20:42:08,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-20 20:42:08,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-09-20 20:42:08,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 906 transitions. [2022-09-20 20:42:08,418 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8162162162162162 [2022-09-20 20:42:08,418 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 906 transitions. [2022-09-20 20:42:08,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 906 transitions. [2022-09-20 20:42:08,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:42:08,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 906 transitions. [2022-09-20 20:42:08,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 90.6) internal successors, (906), 10 states have internal predecessors, (906), 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) [2022-09-20 20:42:08,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 111.0) internal successors, (1221), 11 states have internal predecessors, (1221), 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) [2022-09-20 20:42:08,423 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 111.0) internal successors, (1221), 11 states have internal predecessors, (1221), 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) [2022-09-20 20:42:08,423 INFO L175 Difference]: Start difference. First operand has 123 places, 93 transitions, 280 flow. Second operand 10 states and 906 transitions. [2022-09-20 20:42:08,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 107 transitions, 453 flow [2022-09-20 20:42:08,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 107 transitions, 399 flow, removed 21 selfloop flow, removed 9 redundant places. [2022-09-20 20:42:08,426 INFO L231 Difference]: Finished difference. Result has 125 places, 92 transitions, 279 flow [2022-09-20 20:42:08,426 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=279, PETRI_PLACES=125, PETRI_TRANSITIONS=92} [2022-09-20 20:42:08,427 INFO L287 CegarLoopForPetriNet]: 103 programPoint places, 22 predicate places. [2022-09-20 20:42:08,427 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 92 transitions, 279 flow [2022-09-20 20:42:08,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 89.375) internal successors, (715), 8 states have internal predecessors, (715), 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) [2022-09-20 20:42:08,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:42:08,428 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:42:08,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-20 20:42:08,428 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)] === [2022-09-20 20:42:08,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:42:08,428 INFO L85 PathProgramCache]: Analyzing trace with hash 477713864, now seen corresponding path program 1 times [2022-09-20 20:42:08,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:42:08,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027788199] [2022-09-20 20:42:08,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:42:08,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:42:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:42:08,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:42:08,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:42:08,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027788199] [2022-09-20 20:42:08,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027788199] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:42:08,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:42:08,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-09-20 20:42:08,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801172966] [2022-09-20 20:42:08,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:42:08,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-20 20:42:08,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:42:08,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-20 20:42:08,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-09-20 20:42:08,529 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 111 [2022-09-20 20:42:08,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 92 transitions, 279 flow. Second operand has 8 states, 8 states have (on average 89.375) internal successors, (715), 8 states have internal predecessors, (715), 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) [2022-09-20 20:42:08,530 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:42:08,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 111 [2022-09-20 20:42:08,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:42:08,643 INFO L130 PetriNetUnfolder]: 12/152 cut-off events. [2022-09-20 20:42:08,643 INFO L131 PetriNetUnfolder]: For 176/188 co-relation queries the response was YES. [2022-09-20 20:42:08,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 152 events. 12/152 cut-off events. For 176/188 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 334 event pairs, 4 based on Foata normal form. 4/151 useless extension candidates. Maximal degree in co-relation 322. Up to 24 conditions per place. [2022-09-20 20:42:08,644 INFO L137 encePairwiseOnDemand]: 102/111 looper letters, 15 selfloop transitions, 5 changer transitions 15/104 dead transitions. [2022-09-20 20:42:08,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 104 transitions, 420 flow [2022-09-20 20:42:08,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-20 20:42:08,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-09-20 20:42:08,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 991 transitions. [2022-09-20 20:42:08,648 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8116298116298116 [2022-09-20 20:42:08,648 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 991 transitions. [2022-09-20 20:42:08,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 991 transitions. [2022-09-20 20:42:08,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:42:08,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 991 transitions. [2022-09-20 20:42:08,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 90.0909090909091) internal successors, (991), 11 states have internal predecessors, (991), 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) [2022-09-20 20:42:08,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 111.0) internal successors, (1332), 12 states have internal predecessors, (1332), 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) [2022-09-20 20:42:08,653 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 111.0) internal successors, (1332), 12 states have internal predecessors, (1332), 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) [2022-09-20 20:42:08,653 INFO L175 Difference]: Start difference. First operand has 125 places, 92 transitions, 279 flow. Second operand 11 states and 991 transitions. [2022-09-20 20:42:08,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 104 transitions, 420 flow [2022-09-20 20:42:08,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 104 transitions, 332 flow, removed 38 selfloop flow, removed 14 redundant places. [2022-09-20 20:42:08,656 INFO L231 Difference]: Finished difference. Result has 123 places, 89 transitions, 246 flow [2022-09-20 20:42:08,656 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=246, PETRI_PLACES=123, PETRI_TRANSITIONS=89} [2022-09-20 20:42:08,657 INFO L287 CegarLoopForPetriNet]: 103 programPoint places, 20 predicate places. [2022-09-20 20:42:08,657 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 89 transitions, 246 flow [2022-09-20 20:42:08,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 89.375) internal successors, (715), 8 states have internal predecessors, (715), 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) [2022-09-20 20:42:08,658 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:42:08,658 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:42:08,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-20 20:42:08,658 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)] === [2022-09-20 20:42:08,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:42:08,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1265217232, now seen corresponding path program 1 times [2022-09-20 20:42:08,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:42:08,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598731037] [2022-09-20 20:42:08,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:42:08,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:42:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:42:08,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:42:08,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:42:08,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598731037] [2022-09-20 20:42:08,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598731037] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:42:08,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:42:08,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 20:42:08,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132305689] [2022-09-20 20:42:08,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:42:08,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 20:42:08,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:42:08,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 20:42:08,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-09-20 20:42:08,735 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 111 [2022-09-20 20:42:08,736 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 89 transitions, 246 flow. Second operand has 7 states, 7 states have (on average 94.85714285714286) internal successors, (664), 7 states have internal predecessors, (664), 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) [2022-09-20 20:42:08,736 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:42:08,736 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 111 [2022-09-20 20:42:08,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:42:08,851 INFO L130 PetriNetUnfolder]: 5/102 cut-off events. [2022-09-20 20:42:08,851 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-09-20 20:42:08,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 102 events. 5/102 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 1 based on Foata normal form. 2/103 useless extension candidates. Maximal degree in co-relation 174. Up to 8 conditions per place. [2022-09-20 20:42:08,852 INFO L137 encePairwiseOnDemand]: 104/111 looper letters, 0 selfloop transitions, 0 changer transitions 94/94 dead transitions. [2022-09-20 20:42:08,852 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 94 transitions, 310 flow [2022-09-20 20:42:08,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-20 20:42:08,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-09-20 20:42:08,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 952 transitions. [2022-09-20 20:42:08,855 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8576576576576577 [2022-09-20 20:42:08,855 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 952 transitions. [2022-09-20 20:42:08,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 952 transitions. [2022-09-20 20:42:08,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:42:08,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 952 transitions. [2022-09-20 20:42:08,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 95.2) internal successors, (952), 10 states have internal predecessors, (952), 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) [2022-09-20 20:42:08,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 111.0) internal successors, (1221), 11 states have internal predecessors, (1221), 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) [2022-09-20 20:42:08,861 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 111.0) internal successors, (1221), 11 states have internal predecessors, (1221), 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) [2022-09-20 20:42:08,861 INFO L175 Difference]: Start difference. First operand has 123 places, 89 transitions, 246 flow. Second operand 10 states and 952 transitions. [2022-09-20 20:42:08,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 94 transitions, 310 flow [2022-09-20 20:42:08,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 94 transitions, 272 flow, removed 12 selfloop flow, removed 10 redundant places. [2022-09-20 20:42:08,863 INFO L231 Difference]: Finished difference. Result has 113 places, 0 transitions, 0 flow [2022-09-20 20:42:08,863 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=113, PETRI_TRANSITIONS=0} [2022-09-20 20:42:08,864 INFO L287 CegarLoopForPetriNet]: 103 programPoint places, 10 predicate places. [2022-09-20 20:42:08,864 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 0 transitions, 0 flow [2022-09-20 20:42:08,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 94.85714285714286) internal successors, (664), 7 states have internal predecessors, (664), 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) [2022-09-20 20:42:08,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-09-20 20:42:08,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2022-09-20 20:42:08,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-09-20 20:42:08,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-09-20 20:42:08,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-09-20 20:42:08,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-20 20:42:08,869 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:42:08,872 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 20:42:08,872 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 20:42:08,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 08:42:08 BasicIcfg [2022-09-20 20:42:08,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 20:42:08,880 INFO L158 Benchmark]: Toolchain (without parser) took 4825.59ms. Allocated memory was 185.6MB in the beginning and 294.6MB in the end (delta: 109.1MB). Free memory was 152.0MB in the beginning and 249.2MB in the end (delta: -97.2MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. [2022-09-20 20:42:08,880 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 185.6MB. Free memory is still 138.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 20:42:08,881 INFO L158 Benchmark]: CACSL2BoogieTranslator took 463.58ms. Allocated memory was 185.6MB in the beginning and 245.4MB in the end (delta: 59.8MB). Free memory was 151.8MB in the beginning and 203.8MB in the end (delta: -52.0MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2022-09-20 20:42:08,881 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.58ms. Allocated memory is still 245.4MB. Free memory was 203.8MB in the beginning and 201.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-20 20:42:08,881 INFO L158 Benchmark]: Boogie Preprocessor took 33.29ms. Allocated memory is still 245.4MB. Free memory was 201.7MB in the beginning and 200.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-20 20:42:08,882 INFO L158 Benchmark]: RCFGBuilder took 394.25ms. Allocated memory is still 245.4MB. Free memory was 200.3MB in the beginning and 187.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-09-20 20:42:08,882 INFO L158 Benchmark]: TraceAbstraction took 3872.70ms. Allocated memory was 245.4MB in the beginning and 294.6MB in the end (delta: 49.3MB). Free memory was 186.6MB in the beginning and 249.2MB in the end (delta: -62.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 20:42:08,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 185.6MB. Free memory is still 138.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 463.58ms. Allocated memory was 185.6MB in the beginning and 245.4MB in the end (delta: 59.8MB). Free memory was 151.8MB in the beginning and 203.8MB in the end (delta: -52.0MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.58ms. Allocated memory is still 245.4MB. Free memory was 203.8MB in the beginning and 201.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.29ms. Allocated memory is still 245.4MB. Free memory was 201.7MB in the beginning and 200.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 394.25ms. Allocated memory is still 245.4MB. Free memory was 200.3MB in the beginning and 187.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3872.70ms. Allocated memory was 245.4MB in the beginning and 294.6MB in the end (delta: 49.3MB). Free memory was 186.6MB in the beginning and 249.2MB in the end (delta: -62.6MB). There was no memory consumed. 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, 142 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 370 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 370 mSDsluCounter, 586 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 566 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 460 IncrementalHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 149 mSDtfsCounter, 460 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=432occurred in iteration=3, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 635 NumberOfCodeBlocks, 635 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 626 ConstructedInterpolants, 0 QuantifiedInterpolants, 3238 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-20 20:42:08,921 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...