/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-wip.dk.repeated-lipton-8d0d62b [2022-12-05 18:41:36,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:41:36,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:41:36,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:41:36,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:41:36,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:41:36,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:41:36,493 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:41:36,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:41:36,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:41:36,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:41:36,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:41:36,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:41:36,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:41:36,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:41:36,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:41:36,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:41:36,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:41:36,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:41:36,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:41:36,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:41:36,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:41:36,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:41:36,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:41:36,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 18:41:36,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 18:41:36,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 18:41:36,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 18:41:36,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 18:41:36,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 18:41:36,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 18:41:36,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 18:41:36,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 18:41:36,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 18:41:36,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 18:41:36,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 18:41:36,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 18:41:36,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 18:41:36,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:41:36,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:41:36,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:41:36,530 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-05 18:41:36,564 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:41:36,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:41:36,565 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:41:36,565 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:41:36,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:41:36,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:41:36,566 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:41:36,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:41:36,566 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:41:36,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:41:36,566 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:41:36,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:41:36,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:41:36,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:41:36,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:41:36,567 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:41:36,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:41:36,567 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:41:36,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:41:36,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:41:36,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:41:36,567 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:41:36,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:41:36,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:41:36,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:41:36,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:41:36,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:41:36,568 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:41:36,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:41:36,568 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:41:36,568 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:41:36,568 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:41:36,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:41:36,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:41:36,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:41:36,846 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:41:36,847 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:41:36,848 INFO L432 ainManager$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 [2022-12-05 18:41:37,806 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:41:37,995 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:41:37,995 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 18:41:38,018 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f402bc9/41b5529cc2e147d2a94ba0d619ed697c/FLAGb6fe53f3e [2022-12-05 18:41:38,027 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f402bc9/41b5529cc2e147d2a94ba0d619ed697c [2022-12-05 18:41:38,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:41:38,030 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:41:38,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:41:38,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:41:38,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:41:38,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:41:38" (1/1) ... [2022-12-05 18:41:38,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f07cfac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:38, skipping insertion in model container [2022-12-05 18:41:38,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:41:38" (1/1) ... [2022-12-05 18:41:38,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:41:38,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:41:38,180 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-05 18:41:38,294 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,297 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,297 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,297 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,297 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,297 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,298 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,298 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,298 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,298 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,298 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,299 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,299 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,299 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,299 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,303 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,303 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,303 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:41:38,325 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:41:38,333 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-05 18:41:38,359 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,360 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,360 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,360 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,360 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:41:38,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:41:38,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:41:38,434 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:41:38,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:38 WrapperNode [2022-12-05 18:41:38,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:41:38,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:41:38,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:41:38,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:41:38,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:38" (1/1) ... [2022-12-05 18:41:38,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:38" (1/1) ... [2022-12-05 18:41:38,510 INFO L138 Inliner]: procedures = 177, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2022-12-05 18:41:38,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:41:38,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:41:38,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:41:38,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:41:38,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:38" (1/1) ... [2022-12-05 18:41:38,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:38" (1/1) ... [2022-12-05 18:41:38,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:38" (1/1) ... [2022-12-05 18:41:38,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:38" (1/1) ... [2022-12-05 18:41:38,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:38" (1/1) ... [2022-12-05 18:41:38,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:38" (1/1) ... [2022-12-05 18:41:38,541 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:38" (1/1) ... [2022-12-05 18:41:38,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:38" (1/1) ... [2022-12-05 18:41:38,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:41:38,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:41:38,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:41:38,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:41:38,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:38" (1/1) ... [2022-12-05 18:41:38,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:41:38,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:41:38,584 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 18:41:38,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 18:41:38,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:41:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 18:41:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:41:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:41:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:41:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-05 18:41:38,633 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-05 18:41:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-05 18:41:38,633 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-05 18:41:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-05 18:41:38,633 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-05 18:41:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-05 18:41:38,634 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-05 18:41:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:41:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 18:41:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:41:38,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:41:38,635 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 18:41:38,720 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:41:38,722 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:41:38,936 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:41:38,943 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:41:38,943 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 18:41:38,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:41:38 BoogieIcfgContainer [2022-12-05 18:41:38,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:41:38,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:41:38,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:41:38,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:41:38,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:41:38" (1/3) ... [2022-12-05 18:41:38,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8da41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:41:38, skipping insertion in model container [2022-12-05 18:41:38,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:38" (2/3) ... [2022-12-05 18:41:38,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8da41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:41:38, skipping insertion in model container [2022-12-05 18:41:38,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:41:38" (3/3) ... [2022-12-05 18:41:38,951 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 18:41:38,963 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:41:38,963 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 18:41:38,981 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:41:39,043 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 18:41:39,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 104 transitions, 228 flow [2022-12-05 18:41:39,100 INFO L130 PetriNetUnfolder]: 2/100 cut-off events. [2022-12-05 18:41:39,100 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:41:39,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 100 events. 2/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 58 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2022-12-05 18:41:39,104 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 104 transitions, 228 flow [2022-12-05 18:41:39,107 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 86 transitions, 184 flow [2022-12-05 18:41:39,113 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:41:39,117 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;@6f2ed04c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:41:39,117 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-05 18:41:39,141 INFO L130 PetriNetUnfolder]: 1/85 cut-off events. [2022-12-05 18:41:39,141 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:41:39,141 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:41:39,142 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:41:39,142 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:41:39,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:41:39,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1780733115, now seen corresponding path program 1 times [2022-12-05 18:41:39,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:41:39,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636050080] [2022-12-05 18:41:39,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:41:39,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:41:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:41:39,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:41:39,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:41:39,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636050080] [2022-12-05 18:41:39,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636050080] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:41:39,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:41:39,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:41:39,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135325872] [2022-12-05 18:41:39,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:41:39,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:41:39,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:41:39,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:41:39,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:41:39,978 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 104 [2022-12-05 18:41:39,983 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 86 transitions, 184 flow. Second operand has 6 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:41:39,983 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:41:39,983 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 104 [2022-12-05 18:41:39,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:41:40,146 INFO L130 PetriNetUnfolder]: 6/126 cut-off events. [2022-12-05 18:41:40,147 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-05 18:41:40,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 126 events. 6/126 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 196 event pairs, 0 based on Foata normal form. 4/129 useless extension candidates. Maximal degree in co-relation 139. Up to 13 conditions per place. [2022-12-05 18:41:40,149 INFO L137 encePairwiseOnDemand]: 97/104 looper letters, 13 selfloop transitions, 2 changer transitions 11/98 dead transitions. [2022-12-05 18:41:40,150 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 98 transitions, 267 flow [2022-12-05 18:41:40,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 18:41:40,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 18:41:40,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 821 transitions. [2022-12-05 18:41:40,165 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8771367521367521 [2022-12-05 18:41:40,167 INFO L175 Difference]: Start difference. First operand has 98 places, 86 transitions, 184 flow. Second operand 9 states and 821 transitions. [2022-12-05 18:41:40,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 98 transitions, 267 flow [2022-12-05 18:41:40,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 98 transitions, 260 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 18:41:40,173 INFO L231 Difference]: Finished difference. Result has 109 places, 84 transitions, 196 flow [2022-12-05 18:41:40,174 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=196, PETRI_PLACES=109, PETRI_TRANSITIONS=84} [2022-12-05 18:41:40,179 INFO L294 CegarLoopForPetriNet]: 98 programPoint places, 11 predicate places. [2022-12-05 18:41:40,180 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 84 transitions, 196 flow [2022-12-05 18:41:40,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:41:40,180 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:41:40,180 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:41:40,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:41:40,181 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:41:40,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:41:40,182 INFO L85 PathProgramCache]: Analyzing trace with hash -343659922, now seen corresponding path program 1 times [2022-12-05 18:41:40,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:41:40,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866818134] [2022-12-05 18:41:40,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:41:40,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:41:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:41:40,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:41:40,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:41:40,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866818134] [2022-12-05 18:41:40,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866818134] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:41:40,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:41:40,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:41:40,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179479315] [2022-12-05 18:41:40,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:41:40,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:41:40,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:41:40,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:41:40,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:41:40,480 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 104 [2022-12-05 18:41:40,481 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 84 transitions, 196 flow. Second operand has 7 states, 7 states have (on average 82.28571428571429) internal successors, (576), 7 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:41:40,481 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:41:40,481 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 104 [2022-12-05 18:41:40,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:41:40,834 INFO L130 PetriNetUnfolder]: 276/855 cut-off events. [2022-12-05 18:41:40,834 INFO L131 PetriNetUnfolder]: For 211/273 co-relation queries the response was YES. [2022-12-05 18:41:40,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1605 conditions, 855 events. 276/855 cut-off events. For 211/273 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5144 event pairs, 33 based on Foata normal form. 27/861 useless extension candidates. Maximal degree in co-relation 1560. Up to 133 conditions per place. [2022-12-05 18:41:40,845 INFO L137 encePairwiseOnDemand]: 93/104 looper letters, 27 selfloop transitions, 10 changer transitions 50/151 dead transitions. [2022-12-05 18:41:40,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 151 transitions, 564 flow [2022-12-05 18:41:40,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-05 18:41:40,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-05 18:41:40,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1451 transitions. [2022-12-05 18:41:40,868 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8207013574660633 [2022-12-05 18:41:40,868 INFO L175 Difference]: Start difference. First operand has 109 places, 84 transitions, 196 flow. Second operand 17 states and 1451 transitions. [2022-12-05 18:41:40,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 151 transitions, 564 flow [2022-12-05 18:41:40,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 151 transitions, 500 flow, removed 28 selfloop flow, removed 8 redundant places. [2022-12-05 18:41:40,876 INFO L231 Difference]: Finished difference. Result has 125 places, 91 transitions, 301 flow [2022-12-05 18:41:40,876 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=301, PETRI_PLACES=125, PETRI_TRANSITIONS=91} [2022-12-05 18:41:40,877 INFO L294 CegarLoopForPetriNet]: 98 programPoint places, 27 predicate places. [2022-12-05 18:41:40,877 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 91 transitions, 301 flow [2022-12-05 18:41:40,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.28571428571429) internal successors, (576), 7 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:41:40,877 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:41:40,878 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:41:40,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:41:40,878 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:41:40,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:41:40,878 INFO L85 PathProgramCache]: Analyzing trace with hash 569795079, now seen corresponding path program 1 times [2022-12-05 18:41:40,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:41:40,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577700971] [2022-12-05 18:41:40,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:41:40,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:41:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:41:41,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:41:41,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:41:41,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577700971] [2022-12-05 18:41:41,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577700971] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:41:41,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:41:41,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:41:41,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517874606] [2022-12-05 18:41:41,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:41:41,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:41:41,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:41:41,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:41:41,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:41:41,064 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 104 [2022-12-05 18:41:41,064 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 91 transitions, 301 flow. Second operand has 7 states, 7 states have (on average 84.28571428571429) internal successors, (590), 7 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:41:41,064 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:41:41,064 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 104 [2022-12-05 18:41:41,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:41:41,182 INFO L130 PetriNetUnfolder]: 91/410 cut-off events. [2022-12-05 18:41:41,182 INFO L131 PetriNetUnfolder]: For 1639/2155 co-relation queries the response was YES. [2022-12-05 18:41:41,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1389 conditions, 410 events. 91/410 cut-off events. For 1639/2155 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2061 event pairs, 15 based on Foata normal form. 6/396 useless extension candidates. Maximal degree in co-relation 1334. Up to 105 conditions per place. [2022-12-05 18:41:41,186 INFO L137 encePairwiseOnDemand]: 97/104 looper letters, 26 selfloop transitions, 4 changer transitions 22/119 dead transitions. [2022-12-05 18:41:41,186 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 119 transitions, 763 flow [2022-12-05 18:41:41,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 18:41:41,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 18:41:41,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 865 transitions. [2022-12-05 18:41:41,187 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8317307692307693 [2022-12-05 18:41:41,187 INFO L175 Difference]: Start difference. First operand has 125 places, 91 transitions, 301 flow. Second operand 10 states and 865 transitions. [2022-12-05 18:41:41,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 119 transitions, 763 flow [2022-12-05 18:41:41,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 119 transitions, 621 flow, removed 69 selfloop flow, removed 10 redundant places. [2022-12-05 18:41:41,192 INFO L231 Difference]: Finished difference. Result has 119 places, 91 transitions, 292 flow [2022-12-05 18:41:41,192 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=292, PETRI_PLACES=119, PETRI_TRANSITIONS=91} [2022-12-05 18:41:41,193 INFO L294 CegarLoopForPetriNet]: 98 programPoint places, 21 predicate places. [2022-12-05 18:41:41,193 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 91 transitions, 292 flow [2022-12-05 18:41:41,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 84.28571428571429) internal successors, (590), 7 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:41:41,193 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:41:41,193 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:41:41,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:41:41,194 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:41:41,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:41:41,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1716735963, now seen corresponding path program 1 times [2022-12-05 18:41:41,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:41:41,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768310992] [2022-12-05 18:41:41,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:41:41,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:41:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:41:41,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:41:41,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:41:41,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768310992] [2022-12-05 18:41:41,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768310992] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:41:41,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:41:41,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:41:41,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110978539] [2022-12-05 18:41:41,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:41:41,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:41:41,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:41:41,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:41:41,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:41:41,314 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 104 [2022-12-05 18:41:41,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 91 transitions, 292 flow. Second operand has 7 states, 7 states have (on average 82.42857142857143) internal successors, (577), 7 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:41:41,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:41:41,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 104 [2022-12-05 18:41:41,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:41:41,623 INFO L130 PetriNetUnfolder]: 189/770 cut-off events. [2022-12-05 18:41:41,623 INFO L131 PetriNetUnfolder]: For 1714/2150 co-relation queries the response was YES. [2022-12-05 18:41:41,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2205 conditions, 770 events. 189/770 cut-off events. For 1714/2150 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4841 event pairs, 15 based on Foata normal form. 18/769 useless extension candidates. Maximal degree in co-relation 2149. Up to 162 conditions per place. [2022-12-05 18:41:41,630 INFO L137 encePairwiseOnDemand]: 93/104 looper letters, 38 selfloop transitions, 15 changer transitions 38/156 dead transitions. [2022-12-05 18:41:41,631 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 156 transitions, 985 flow [2022-12-05 18:41:41,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-05 18:41:41,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-05 18:41:41,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1441 transitions. [2022-12-05 18:41:41,633 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8150452488687783 [2022-12-05 18:41:41,633 INFO L175 Difference]: Start difference. First operand has 119 places, 91 transitions, 292 flow. Second operand 17 states and 1441 transitions. [2022-12-05 18:41:41,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 156 transitions, 985 flow [2022-12-05 18:41:41,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 156 transitions, 915 flow, removed 28 selfloop flow, removed 9 redundant places. [2022-12-05 18:41:41,646 INFO L231 Difference]: Finished difference. Result has 135 places, 103 transitions, 487 flow [2022-12-05 18:41:41,646 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=487, PETRI_PLACES=135, PETRI_TRANSITIONS=103} [2022-12-05 18:41:41,648 INFO L294 CegarLoopForPetriNet]: 98 programPoint places, 37 predicate places. [2022-12-05 18:41:41,648 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 103 transitions, 487 flow [2022-12-05 18:41:41,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.42857142857143) internal successors, (577), 7 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:41:41,648 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:41:41,648 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:41:41,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 18:41:41,649 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:41:41,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:41:41,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1279206897, now seen corresponding path program 1 times [2022-12-05 18:41:41,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:41:41,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364875258] [2022-12-05 18:41:41,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:41:41,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:41:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:41:41,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:41:41,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:41:41,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364875258] [2022-12-05 18:41:41,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364875258] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:41:41,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:41:41,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:41:41,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331511938] [2022-12-05 18:41:41,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:41:41,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:41:41,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:41:41,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:41:41,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:41:41,889 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 104 [2022-12-05 18:41:41,889 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 103 transitions, 487 flow. Second operand has 7 states, 7 states have (on average 84.28571428571429) internal successors, (590), 7 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:41:41,889 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:41:41,890 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 104 [2022-12-05 18:41:41,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:41:42,037 INFO L130 PetriNetUnfolder]: 100/573 cut-off events. [2022-12-05 18:41:42,038 INFO L131 PetriNetUnfolder]: For 3399/4461 co-relation queries the response was YES. [2022-12-05 18:41:42,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2082 conditions, 573 events. 100/573 cut-off events. For 3399/4461 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3546 event pairs, 11 based on Foata normal form. 9/565 useless extension candidates. Maximal degree in co-relation 2017. Up to 122 conditions per place. [2022-12-05 18:41:42,042 INFO L137 encePairwiseOnDemand]: 97/104 looper letters, 44 selfloop transitions, 16 changer transitions 7/135 dead transitions. [2022-12-05 18:41:42,042 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 135 transitions, 1053 flow [2022-12-05 18:41:42,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 18:41:42,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 18:41:42,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 861 transitions. [2022-12-05 18:41:42,045 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8278846153846153 [2022-12-05 18:41:42,045 INFO L175 Difference]: Start difference. First operand has 135 places, 103 transitions, 487 flow. Second operand 10 states and 861 transitions. [2022-12-05 18:41:42,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 135 transitions, 1053 flow [2022-12-05 18:41:42,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 135 transitions, 864 flow, removed 91 selfloop flow, removed 13 redundant places. [2022-12-05 18:41:42,054 INFO L231 Difference]: Finished difference. Result has 122 places, 111 transitions, 550 flow [2022-12-05 18:41:42,054 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=550, PETRI_PLACES=122, PETRI_TRANSITIONS=111} [2022-12-05 18:41:42,056 INFO L294 CegarLoopForPetriNet]: 98 programPoint places, 24 predicate places. [2022-12-05 18:41:42,056 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 111 transitions, 550 flow [2022-12-05 18:41:42,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 84.28571428571429) internal successors, (590), 7 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:41:42,057 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:41:42,057 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:41:42,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 18:41:42,057 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:41:42,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:41:42,058 INFO L85 PathProgramCache]: Analyzing trace with hash -39139536, now seen corresponding path program 1 times [2022-12-05 18:41:42,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:41:42,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230358087] [2022-12-05 18:41:42,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:41:42,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:41:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:41:42,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:41:42,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:41:42,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230358087] [2022-12-05 18:41:42,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230358087] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:41:42,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:41:42,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:41:42,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937055052] [2022-12-05 18:41:42,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:41:42,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:41:42,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:41:42,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:41:42,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:41:42,192 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 104 [2022-12-05 18:41:42,192 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 111 transitions, 550 flow. Second operand has 7 states, 7 states have (on average 87.85714285714286) internal successors, (615), 7 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:41:42,192 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:41:42,192 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 104 [2022-12-05 18:41:42,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:41:42,316 INFO L130 PetriNetUnfolder]: 117/573 cut-off events. [2022-12-05 18:41:42,316 INFO L131 PetriNetUnfolder]: For 3089/8156 co-relation queries the response was YES. [2022-12-05 18:41:42,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1822 conditions, 573 events. 117/573 cut-off events. For 3089/8156 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3558 event pairs, 12 based on Foata normal form. 23/577 useless extension candidates. Maximal degree in co-relation 1766. Up to 127 conditions per place. [2022-12-05 18:41:42,319 INFO L137 encePairwiseOnDemand]: 96/104 looper letters, 12 selfloop transitions, 7 changer transitions 34/133 dead transitions. [2022-12-05 18:41:42,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 133 transitions, 811 flow [2022-12-05 18:41:42,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 18:41:42,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 18:41:42,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 888 transitions. [2022-12-05 18:41:42,325 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8538461538461538 [2022-12-05 18:41:42,325 INFO L175 Difference]: Start difference. First operand has 122 places, 111 transitions, 550 flow. Second operand 10 states and 888 transitions. [2022-12-05 18:41:42,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 133 transitions, 811 flow [2022-12-05 18:41:42,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 133 transitions, 803 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-12-05 18:41:42,330 INFO L231 Difference]: Finished difference. Result has 138 places, 99 transitions, 457 flow [2022-12-05 18:41:42,330 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=457, PETRI_PLACES=138, PETRI_TRANSITIONS=99} [2022-12-05 18:41:42,332 INFO L294 CegarLoopForPetriNet]: 98 programPoint places, 40 predicate places. [2022-12-05 18:41:42,333 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 99 transitions, 457 flow [2022-12-05 18:41:42,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.85714285714286) internal successors, (615), 7 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:41:42,333 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:41:42,333 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:41:42,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 18:41:42,333 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:41:42,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:41:42,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1404458796, now seen corresponding path program 1 times [2022-12-05 18:41:42,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:41:42,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364705408] [2022-12-05 18:41:42,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:41:42,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:41:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:41:42,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:41:42,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:41:42,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364705408] [2022-12-05 18:41:42,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364705408] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:41:42,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:41:42,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:41:42,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798452096] [2022-12-05 18:41:42,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:41:42,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:41:42,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:41:42,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:41:42,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:41:42,495 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 104 [2022-12-05 18:41:42,496 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 99 transitions, 457 flow. Second operand has 8 states, 8 states have (on average 82.25) internal successors, (658), 8 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:41:42,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:41:42,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 104 [2022-12-05 18:41:42,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:41:42,616 INFO L130 PetriNetUnfolder]: 64/443 cut-off events. [2022-12-05 18:41:42,616 INFO L131 PetriNetUnfolder]: For 1384/2978 co-relation queries the response was YES. [2022-12-05 18:41:42,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1337 conditions, 443 events. 64/443 cut-off events. For 1384/2978 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2926 event pairs, 10 based on Foata normal form. 5/437 useless extension candidates. Maximal degree in co-relation 1303. Up to 80 conditions per place. [2022-12-05 18:41:42,619 INFO L137 encePairwiseOnDemand]: 95/104 looper letters, 20 selfloop transitions, 5 changer transitions 36/125 dead transitions. [2022-12-05 18:41:42,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 125 transitions, 848 flow [2022-12-05 18:41:42,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-05 18:41:42,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-05 18:41:42,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 922 transitions. [2022-12-05 18:41:42,620 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8059440559440559 [2022-12-05 18:41:42,620 INFO L175 Difference]: Start difference. First operand has 138 places, 99 transitions, 457 flow. Second operand 11 states and 922 transitions. [2022-12-05 18:41:42,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 125 transitions, 848 flow [2022-12-05 18:41:42,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 125 transitions, 747 flow, removed 27 selfloop flow, removed 13 redundant places. [2022-12-05 18:41:42,625 INFO L231 Difference]: Finished difference. Result has 131 places, 86 transitions, 322 flow [2022-12-05 18:41:42,625 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=322, PETRI_PLACES=131, PETRI_TRANSITIONS=86} [2022-12-05 18:41:42,625 INFO L294 CegarLoopForPetriNet]: 98 programPoint places, 33 predicate places. [2022-12-05 18:41:42,625 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 86 transitions, 322 flow [2022-12-05 18:41:42,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 82.25) internal successors, (658), 8 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:41:42,626 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:41:42,626 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:41:42,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 18:41:42,626 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:41:42,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:41:42,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1984311691, now seen corresponding path program 1 times [2022-12-05 18:41:42,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:41:42,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64994725] [2022-12-05 18:41:42,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:41:42,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:41:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:41:42,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:41:42,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:41:42,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64994725] [2022-12-05 18:41:42,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64994725] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:41:42,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:41:42,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:41:42,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445709070] [2022-12-05 18:41:42,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:41:42,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:41:42,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:41:42,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:41:42,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:41:42,763 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 104 [2022-12-05 18:41:42,764 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 86 transitions, 322 flow. Second operand has 8 states, 8 states have (on average 82.375) internal successors, (659), 8 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:41:42,764 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:41:42,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 104 [2022-12-05 18:41:42,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:41:42,859 INFO L130 PetriNetUnfolder]: 18/186 cut-off events. [2022-12-05 18:41:42,859 INFO L131 PetriNetUnfolder]: For 545/627 co-relation queries the response was YES. [2022-12-05 18:41:42,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 511 conditions, 186 events. 18/186 cut-off events. For 545/627 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 601 event pairs, 4 based on Foata normal form. 4/185 useless extension candidates. Maximal degree in co-relation 481. Up to 24 conditions per place. [2022-12-05 18:41:42,860 INFO L137 encePairwiseOnDemand]: 95/104 looper letters, 18 selfloop transitions, 5 changer transitions 18/105 dead transitions. [2022-12-05 18:41:42,860 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 105 transitions, 570 flow [2022-12-05 18:41:42,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-05 18:41:42,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-05 18:41:42,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 921 transitions. [2022-12-05 18:41:42,862 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8050699300699301 [2022-12-05 18:41:42,862 INFO L175 Difference]: Start difference. First operand has 131 places, 86 transitions, 322 flow. Second operand 11 states and 921 transitions. [2022-12-05 18:41:42,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 105 transitions, 570 flow [2022-12-05 18:41:42,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 105 transitions, 430 flow, removed 48 selfloop flow, removed 20 redundant places. [2022-12-05 18:41:42,864 INFO L231 Difference]: Finished difference. Result has 123 places, 84 transitions, 258 flow [2022-12-05 18:41:42,865 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=258, PETRI_PLACES=123, PETRI_TRANSITIONS=84} [2022-12-05 18:41:42,865 INFO L294 CegarLoopForPetriNet]: 98 programPoint places, 25 predicate places. [2022-12-05 18:41:42,865 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 84 transitions, 258 flow [2022-12-05 18:41:42,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 82.375) internal successors, (659), 8 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:41:42,866 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:41:42,866 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:41:42,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 18:41:42,866 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:41:42,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:41:42,866 INFO L85 PathProgramCache]: Analyzing trace with hash -976161043, now seen corresponding path program 1 times [2022-12-05 18:41:42,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:41:42,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366152294] [2022-12-05 18:41:42,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:41:42,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:41:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:41:42,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:41:42,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:41:42,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366152294] [2022-12-05 18:41:42,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366152294] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:41:42,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:41:42,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:41:42,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801545679] [2022-12-05 18:41:42,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:41:42,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:41:42,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:41:42,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:41:42,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:41:42,972 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 104 [2022-12-05 18:41:42,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 84 transitions, 258 flow. Second operand has 7 states, 7 states have (on average 87.85714285714286) internal successors, (615), 7 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:41:42,973 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:41:42,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 104 [2022-12-05 18:41:42,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:41:43,049 INFO L130 PetriNetUnfolder]: 6/116 cut-off events. [2022-12-05 18:41:43,050 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2022-12-05 18:41:43,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 116 events. 6/116 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 143 event pairs, 2 based on Foata normal form. 2/116 useless extension candidates. Maximal degree in co-relation 219. Up to 10 conditions per place. [2022-12-05 18:41:43,050 INFO L137 encePairwiseOnDemand]: 97/104 looper letters, 0 selfloop transitions, 0 changer transitions 89/89 dead transitions. [2022-12-05 18:41:43,050 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 89 transitions, 328 flow [2022-12-05 18:41:43,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 18:41:43,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 18:41:43,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 882 transitions. [2022-12-05 18:41:43,052 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8480769230769231 [2022-12-05 18:41:43,052 INFO L175 Difference]: Start difference. First operand has 123 places, 84 transitions, 258 flow. Second operand 10 states and 882 transitions. [2022-12-05 18:41:43,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 89 transitions, 328 flow [2022-12-05 18:41:43,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 89 transitions, 250 flow, removed 28 selfloop flow, removed 17 redundant places. [2022-12-05 18:41:43,053 INFO L231 Difference]: Finished difference. Result has 107 places, 0 transitions, 0 flow [2022-12-05 18:41:43,053 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=107, PETRI_TRANSITIONS=0} [2022-12-05 18:41:43,054 INFO L294 CegarLoopForPetriNet]: 98 programPoint places, 9 predicate places. [2022-12-05 18:41:43,054 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 0 transitions, 0 flow [2022-12-05 18:41:43,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.85714285714286) internal successors, (615), 7 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:41:43,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-05 18:41:43,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2022-12-05 18:41:43,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-05 18:41:43,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-05 18:41:43,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-05 18:41:43,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-05 18:41:43,057 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:41:43,059 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 18:41:43,059 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 18:41:43,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 06:41:43 BasicIcfg [2022-12-05 18:41:43,062 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 18:41:43,063 INFO L158 Benchmark]: Toolchain (without parser) took 5033.10ms. Allocated memory was 224.4MB in the beginning and 286.3MB in the end (delta: 61.9MB). Free memory was 199.6MB in the beginning and 121.3MB in the end (delta: 78.3MB). Peak memory consumption was 141.2MB. Max. memory is 8.0GB. [2022-12-05 18:41:43,063 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 224.4MB. Free memory was 201.3MB in the beginning and 201.2MB in the end (delta: 80.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 18:41:43,063 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.23ms. Allocated memory is still 224.4MB. Free memory was 199.1MB in the beginning and 174.9MB in the end (delta: 24.2MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-05 18:41:43,063 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.43ms. Allocated memory is still 224.4MB. Free memory was 174.9MB in the beginning and 172.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 18:41:43,064 INFO L158 Benchmark]: Boogie Preprocessor took 33.00ms. Allocated memory is still 224.4MB. Free memory was 172.9MB in the beginning and 171.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 18:41:43,064 INFO L158 Benchmark]: RCFGBuilder took 400.40ms. Allocated memory is still 224.4MB. Free memory was 171.3MB in the beginning and 156.1MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-12-05 18:41:43,064 INFO L158 Benchmark]: TraceAbstraction took 4115.11ms. Allocated memory was 224.4MB in the beginning and 286.3MB in the end (delta: 61.9MB). Free memory was 155.6MB in the beginning and 121.3MB in the end (delta: 34.3MB). Peak memory consumption was 97.2MB. Max. memory is 8.0GB. [2022-12-05 18:41:43,065 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 224.4MB. Free memory was 201.3MB in the beginning and 201.2MB in the end (delta: 80.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 404.23ms. Allocated memory is still 224.4MB. Free memory was 199.1MB in the beginning and 174.9MB in the end (delta: 24.2MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 75.43ms. Allocated memory is still 224.4MB. Free memory was 174.9MB in the beginning and 172.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.00ms. Allocated memory is still 224.4MB. Free memory was 172.9MB in the beginning and 171.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 400.40ms. Allocated memory is still 224.4MB. Free memory was 171.3MB in the beginning and 156.1MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 4115.11ms. Allocated memory was 224.4MB in the beginning and 286.3MB in the end (delta: 61.9MB). Free memory was 155.6MB in the beginning and 121.3MB in the end (delta: 34.3MB). Peak memory consumption was 97.2MB. 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, 135 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: 4.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 387 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 387 mSDsluCounter, 608 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 456 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 483 IncrementalHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 152 mSDtfsCounter, 483 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=550occurred in iteration=5, InterpolantAutomatonStates: 105, 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, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 589 NumberOfCodeBlocks, 589 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 580 ConstructedInterpolants, 0 QuantifiedInterpolants, 2348 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! [2022-12-05 18:41:43,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...