/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:38:19,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:38:19,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:38:19,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:38:19,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:38:19,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:38:19,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:38:19,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:38:19,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:38:19,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:38:19,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:38:19,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:38:19,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:38:19,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:38:19,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:38:19,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:38:19,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:38:19,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:38:19,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:38:19,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:38:19,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:38:19,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:38:19,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:38:19,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:38:19,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:38:19,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:38:19,563 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:38:19,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:38:19,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:38:19,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:38:19,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:38:19,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:38:19,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:38:19,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:38:19,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:38:19,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:38:19,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:38:19,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:38:19,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:38:19,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:38:19,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:38:19,587 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 [2022-12-06 16:38:19,621 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:38:19,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:38:19,622 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:38:19,622 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:38:19,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:38:19,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:38:19,623 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:38:19,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:38:19,623 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:38:19,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:38:19,623 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:38:19,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:38:19,623 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:38:19,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:38:19,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:38:19,624 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:38:19,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:38:19,624 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:38:19,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:38:19,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:38:19,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:38:19,624 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:38:19,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:38:19,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:38:19,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:38:19,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:38:19,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:38:19,625 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:38:19,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:38:19,625 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:38:19,625 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:38:19,625 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:38:19,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:38:19,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:38:19,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:38:19,935 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:38:19,935 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:38:19,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:38:20,808 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:38:21,021 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:38:21,021 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:38:21,028 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0145a2b2e/b4bdecbf78314eb189f5a67f974ca987/FLAG007927773 [2022-12-06 16:38:21,042 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0145a2b2e/b4bdecbf78314eb189f5a67f974ca987 [2022-12-06 16:38:21,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:38:21,045 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:38:21,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:38:21,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:38:21,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:38:21,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:38:21" (1/1) ... [2022-12-06 16:38:21,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14cc11db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:38:21, skipping insertion in model container [2022-12-06 16:38:21,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:38:21" (1/1) ... [2022-12-06 16:38:21,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:38:21,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:38:21,196 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-06 16:38:21,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,333 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,336 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,336 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,336 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,337 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,338 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:38:21,348 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:38:21,357 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-06 16:38:21,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,394 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:38:21,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:38:21,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:38:21,432 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:38:21,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:38:21 WrapperNode [2022-12-06 16:38:21,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:38:21,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:38:21,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:38:21,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:38:21,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:38:21" (1/1) ... [2022-12-06 16:38:21,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:38:21" (1/1) ... [2022-12-06 16:38:21,480 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2022-12-06 16:38:21,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:38:21,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:38:21,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:38:21,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:38:21,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:38:21" (1/1) ... [2022-12-06 16:38:21,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:38:21" (1/1) ... [2022-12-06 16:38:21,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:38:21" (1/1) ... [2022-12-06 16:38:21,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:38:21" (1/1) ... [2022-12-06 16:38:21,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:38:21" (1/1) ... [2022-12-06 16:38:21,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:38:21" (1/1) ... [2022-12-06 16:38:21,516 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:38:21" (1/1) ... [2022-12-06 16:38:21,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:38:21" (1/1) ... [2022-12-06 16:38:21,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:38:21,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:38:21,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:38:21,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:38:21,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:38:21" (1/1) ... [2022-12-06 16:38:21,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:38:21,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:38:21,560 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) [2022-12-06 16:38:21,578 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 [2022-12-06 16:38:21,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:38:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 16:38:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:38:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:38:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:38:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 16:38:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 16:38:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 16:38:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 16:38:21,590 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-06 16:38:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-06 16:38:21,590 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-06 16:38:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-06 16:38:21,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:38:21,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 16:38:21,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:38:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:38:21,591 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:38:21,708 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:38:21,709 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:38:21,863 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:38:21,875 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:38:21,875 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:38:21,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:38:21 BoogieIcfgContainer [2022-12-06 16:38:21,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:38:21,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:38:21,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:38:21,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:38:21,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:38:21" (1/3) ... [2022-12-06 16:38:21,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da363fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:38:21, skipping insertion in model container [2022-12-06 16:38:21,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:38:21" (2/3) ... [2022-12-06 16:38:21,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da363fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:38:21, skipping insertion in model container [2022-12-06 16:38:21,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:38:21" (3/3) ... [2022-12-06 16:38:21,882 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:38:21,894 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:38:21,894 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:38:21,894 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:38:21,968 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 16:38:22,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 99 transitions, 218 flow [2022-12-06 16:38:22,072 INFO L130 PetriNetUnfolder]: 2/95 cut-off events. [2022-12-06 16:38:22,073 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:38:22,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 95 events. 2/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2022-12-06 16:38:22,076 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 99 transitions, 218 flow [2022-12-06 16:38:22,080 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 81 transitions, 174 flow [2022-12-06 16:38:22,087 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:38:22,091 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;@333813f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:38:22,091 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-06 16:38:22,118 INFO L130 PetriNetUnfolder]: 1/80 cut-off events. [2022-12-06 16:38:22,119 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:38:22,119 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:38:22,119 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] [2022-12-06 16:38:22,120 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)] === [2022-12-06 16:38:22,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:38:22,125 INFO L85 PathProgramCache]: Analyzing trace with hash -131963081, now seen corresponding path program 1 times [2022-12-06 16:38:22,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:38:22,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379742029] [2022-12-06 16:38:22,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:38:22,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:38:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:38:22,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:38:22,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:38:22,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379742029] [2022-12-06 16:38:22,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379742029] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:38:22,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:38:22,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:38:22,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842753506] [2022-12-06 16:38:22,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:38:22,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:38:22,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:38:22,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:38:22,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:38:22,750 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 99 [2022-12-06 16:38:22,753 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 81 transitions, 174 flow. Second operand has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:22,753 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:38:22,753 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 99 [2022-12-06 16:38:22,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:38:23,124 INFO L130 PetriNetUnfolder]: 293/799 cut-off events. [2022-12-06 16:38:23,125 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-12-06 16:38:23,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1356 conditions, 799 events. 293/799 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4641 event pairs, 50 based on Foata normal form. 30/797 useless extension candidates. Maximal degree in co-relation 1320. Up to 190 conditions per place. [2022-12-06 16:38:23,134 INFO L137 encePairwiseOnDemand]: 86/99 looper letters, 23 selfloop transitions, 8 changer transitions 44/136 dead transitions. [2022-12-06 16:38:23,134 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 136 transitions, 440 flow [2022-12-06 16:38:23,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:38:23,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:38:23,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1069 transitions. [2022-12-06 16:38:23,147 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8306138306138307 [2022-12-06 16:38:23,149 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 12 predicate places. [2022-12-06 16:38:23,149 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 136 transitions, 440 flow [2022-12-06 16:38:23,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:23,149 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:38:23,149 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] [2022-12-06 16:38:23,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:38:23,150 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)] === [2022-12-06 16:38:23,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:38:23,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1606034358, now seen corresponding path program 1 times [2022-12-06 16:38:23,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:38:23,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281720543] [2022-12-06 16:38:23,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:38:23,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:38:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:38:23,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:38:23,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:38:23,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281720543] [2022-12-06 16:38:23,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281720543] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:38:23,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:38:23,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:38:23,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817797577] [2022-12-06 16:38:23,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:38:23,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:38:23,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:38:23,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:38:23,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:38:23,439 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 99 [2022-12-06 16:38:23,439 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 136 transitions, 440 flow. Second operand has 7 states, 7 states have (on average 78.14285714285714) internal successors, (547), 7 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:23,439 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:38:23,439 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 99 [2022-12-06 16:38:23,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:38:23,658 INFO L130 PetriNetUnfolder]: 409/1169 cut-off events. [2022-12-06 16:38:23,658 INFO L131 PetriNetUnfolder]: For 92/250 co-relation queries the response was YES. [2022-12-06 16:38:23,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2680 conditions, 1169 events. 409/1169 cut-off events. For 92/250 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 8066 event pairs, 30 based on Foata normal form. 31/1175 useless extension candidates. Maximal degree in co-relation 2637. Up to 260 conditions per place. [2022-12-06 16:38:23,664 INFO L137 encePairwiseOnDemand]: 90/99 looper letters, 34 selfloop transitions, 7 changer transitions 146/248 dead transitions. [2022-12-06 16:38:23,664 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 248 transitions, 1277 flow [2022-12-06 16:38:23,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:38:23,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:38:23,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1064 transitions. [2022-12-06 16:38:23,667 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8267288267288267 [2022-12-06 16:38:23,667 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 24 predicate places. [2022-12-06 16:38:23,667 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 248 transitions, 1277 flow [2022-12-06 16:38:23,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.14285714285714) internal successors, (547), 7 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:23,668 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:38:23,668 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] [2022-12-06 16:38:23,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:38:23,668 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)] === [2022-12-06 16:38:23,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:38:23,675 INFO L85 PathProgramCache]: Analyzing trace with hash -22266539, now seen corresponding path program 1 times [2022-12-06 16:38:23,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:38:23,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333317667] [2022-12-06 16:38:23,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:38:23,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:38:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:38:23,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:38:23,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:38:23,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333317667] [2022-12-06 16:38:23,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333317667] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:38:23,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:38:23,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:38:23,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183678339] [2022-12-06 16:38:23,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:38:23,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:38:23,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:38:23,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:38:23,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:38:23,859 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 99 [2022-12-06 16:38:23,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 248 transitions, 1277 flow. Second operand has 8 states, 8 states have (on average 78.0) internal successors, (624), 8 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:23,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:38:23,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 99 [2022-12-06 16:38:23,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:38:24,232 INFO L130 PetriNetUnfolder]: 492/1527 cut-off events. [2022-12-06 16:38:24,233 INFO L131 PetriNetUnfolder]: For 281/913 co-relation queries the response was YES. [2022-12-06 16:38:24,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4402 conditions, 1527 events. 492/1527 cut-off events. For 281/913 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 12023 event pairs, 30 based on Foata normal form. 46/1544 useless extension candidates. Maximal degree in co-relation 4352. Up to 333 conditions per place. [2022-12-06 16:38:24,239 INFO L137 encePairwiseOnDemand]: 89/99 looper letters, 27 selfloop transitions, 10 changer transitions 357/455 dead transitions. [2022-12-06 16:38:24,239 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 455 transitions, 3313 flow [2022-12-06 16:38:24,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 16:38:24,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 16:38:24,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1389 transitions. [2022-12-06 16:38:24,242 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8253119429590018 [2022-12-06 16:38:24,243 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 40 predicate places. [2022-12-06 16:38:24,243 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 455 transitions, 3313 flow [2022-12-06 16:38:24,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 78.0) internal successors, (624), 8 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:24,243 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:38:24,243 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] [2022-12-06 16:38:24,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:38:24,244 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)] === [2022-12-06 16:38:24,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:38:24,245 INFO L85 PathProgramCache]: Analyzing trace with hash 958639488, now seen corresponding path program 1 times [2022-12-06 16:38:24,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:38:24,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189056930] [2022-12-06 16:38:24,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:38:24,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:38:24,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:38:24,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:38:24,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:38:24,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189056930] [2022-12-06 16:38:24,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189056930] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:38:24,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:38:24,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:38:24,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385938915] [2022-12-06 16:38:24,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:38:24,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:38:24,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:38:24,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:38:24,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:38:24,406 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 99 [2022-12-06 16:38:24,406 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 455 transitions, 3313 flow. Second operand has 8 states, 8 states have (on average 76.25) internal successors, (610), 8 states have internal predecessors, (610), 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) [2022-12-06 16:38:24,406 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:38:24,406 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 99 [2022-12-06 16:38:24,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:38:25,007 INFO L130 PetriNetUnfolder]: 1772/4458 cut-off events. [2022-12-06 16:38:25,007 INFO L131 PetriNetUnfolder]: For 2244/18428 co-relation queries the response was YES. [2022-12-06 16:38:25,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15341 conditions, 4458 events. 1772/4458 cut-off events. For 2244/18428 co-relation queries the response was YES. Maximal size of possible extension queue 482. Compared 42085 event pairs, 30 based on Foata normal form. 90/4499 useless extension candidates. Maximal degree in co-relation 15283. Up to 915 conditions per place. [2022-12-06 16:38:25,026 INFO L137 encePairwiseOnDemand]: 85/99 looper letters, 30 selfloop transitions, 14 changer transitions 1045/1148 dead transitions. [2022-12-06 16:38:25,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 1148 transitions, 11065 flow [2022-12-06 16:38:25,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 16:38:25,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 16:38:25,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1370 transitions. [2022-12-06 16:38:25,030 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8140225787284611 [2022-12-06 16:38:25,031 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 56 predicate places. [2022-12-06 16:38:25,031 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 1148 transitions, 11065 flow [2022-12-06 16:38:25,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.25) internal successors, (610), 8 states have internal predecessors, (610), 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) [2022-12-06 16:38:25,032 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:38:25,032 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] [2022-12-06 16:38:25,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:38:25,032 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)] === [2022-12-06 16:38:25,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:38:25,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1956708513, now seen corresponding path program 1 times [2022-12-06 16:38:25,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:38:25,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693558765] [2022-12-06 16:38:25,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:38:25,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:38:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:38:25,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:38:25,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:38:25,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693558765] [2022-12-06 16:38:25,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693558765] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:38:25,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:38:25,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:38:25,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649469550] [2022-12-06 16:38:25,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:38:25,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:38:25,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:38:25,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:38:25,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:38:25,193 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 99 [2022-12-06 16:38:25,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 1148 transitions, 11065 flow. Second operand has 7 states, 7 states have (on average 78.42857142857143) internal successors, (549), 7 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:25,193 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:38:25,193 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 99 [2022-12-06 16:38:25,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:38:25,886 INFO L130 PetriNetUnfolder]: 2001/5357 cut-off events. [2022-12-06 16:38:25,886 INFO L131 PetriNetUnfolder]: For 4539/16731 co-relation queries the response was YES. [2022-12-06 16:38:25,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21130 conditions, 5357 events. 2001/5357 cut-off events. For 4539/16731 co-relation queries the response was YES. Maximal size of possible extension queue 613. Compared 54369 event pairs, 8 based on Foata normal form. 227/5522 useless extension candidates. Maximal degree in co-relation 21065. Up to 1129 conditions per place. [2022-12-06 16:38:25,906 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 36 selfloop transitions, 10 changer transitions 1351/1458 dead transitions. [2022-12-06 16:38:25,906 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 1458 transitions, 16953 flow [2022-12-06 16:38:25,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:38:25,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:38:25,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1067 transitions. [2022-12-06 16:38:25,909 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8290598290598291 [2022-12-06 16:38:25,911 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 68 predicate places. [2022-12-06 16:38:25,911 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 1458 transitions, 16953 flow [2022-12-06 16:38:25,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.42857142857143) internal successors, (549), 7 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:25,911 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:38:25,911 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] [2022-12-06 16:38:25,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 16:38:25,912 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)] === [2022-12-06 16:38:25,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:38:25,912 INFO L85 PathProgramCache]: Analyzing trace with hash -755614635, now seen corresponding path program 1 times [2022-12-06 16:38:25,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:38:25,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211214353] [2022-12-06 16:38:25,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:38:25,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:38:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:38:26,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:38:26,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:38:26,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211214353] [2022-12-06 16:38:26,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211214353] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:38:26,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:38:26,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:38:26,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026545618] [2022-12-06 16:38:26,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:38:26,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:38:26,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:38:26,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:38:26,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:38:26,049 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 99 [2022-12-06 16:38:26,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 1458 transitions, 16953 flow. Second operand has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:26,050 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:38:26,050 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 99 [2022-12-06 16:38:26,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:38:29,097 INFO L130 PetriNetUnfolder]: 10762/24089 cut-off events. [2022-12-06 16:38:29,097 INFO L131 PetriNetUnfolder]: For 13135/21234 co-relation queries the response was YES. [2022-12-06 16:38:29,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72793 conditions, 24089 events. 10762/24089 cut-off events. For 13135/21234 co-relation queries the response was YES. Maximal size of possible extension queue 1754. Compared 279113 event pairs, 518 based on Foata normal form. 163/22610 useless extension candidates. Maximal degree in co-relation 72724. Up to 6455 conditions per place. [2022-12-06 16:38:29,213 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 43 selfloop transitions, 20 changer transitions 888/1325 dead transitions. [2022-12-06 16:38:29,214 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 1325 transitions, 15263 flow [2022-12-06 16:38:29,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 16:38:29,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 16:38:29,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 858 transitions. [2022-12-06 16:38:29,216 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2022-12-06 16:38:29,218 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 77 predicate places. [2022-12-06 16:38:29,218 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 1325 transitions, 15263 flow [2022-12-06 16:38:29,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:29,219 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:38:29,219 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] [2022-12-06 16:38:29,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 16:38:29,220 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)] === [2022-12-06 16:38:29,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:38:29,220 INFO L85 PathProgramCache]: Analyzing trace with hash 619656157, now seen corresponding path program 1 times [2022-12-06 16:38:29,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:38:29,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127993842] [2022-12-06 16:38:29,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:38:29,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:38:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:38:29,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:38:29,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:38:29,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127993842] [2022-12-06 16:38:29,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127993842] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:38:29,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:38:29,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:38:29,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677751372] [2022-12-06 16:38:29,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:38:29,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:38:29,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:38:29,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:38:29,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:38:29,369 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 99 [2022-12-06 16:38:29,370 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 1325 transitions, 15263 flow. Second operand has 7 states, 7 states have (on average 81.71428571428571) internal successors, (572), 7 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:29,370 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:38:29,370 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 99 [2022-12-06 16:38:29,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:38:31,895 INFO L130 PetriNetUnfolder]: 8676/19832 cut-off events. [2022-12-06 16:38:31,895 INFO L131 PetriNetUnfolder]: For 13124/23498 co-relation queries the response was YES. [2022-12-06 16:38:31,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61401 conditions, 19832 events. 8676/19832 cut-off events. For 13124/23498 co-relation queries the response was YES. Maximal size of possible extension queue 2012. Compared 226647 event pairs, 122 based on Foata normal form. 685/19387 useless extension candidates. Maximal degree in co-relation 61328. Up to 6219 conditions per place. [2022-12-06 16:38:31,998 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 68 selfloop transitions, 54 changer transitions 663/938 dead transitions. [2022-12-06 16:38:31,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 938 transitions, 10586 flow [2022-12-06 16:38:31,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:38:31,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:38:32,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1117 transitions. [2022-12-06 16:38:32,000 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8679098679098679 [2022-12-06 16:38:32,001 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 86 predicate places. [2022-12-06 16:38:32,001 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 938 transitions, 10586 flow [2022-12-06 16:38:32,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 81.71428571428571) internal successors, (572), 7 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:32,001 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:38:32,002 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] [2022-12-06 16:38:32,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 16:38:32,002 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)] === [2022-12-06 16:38:32,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:38:32,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1175594820, now seen corresponding path program 1 times [2022-12-06 16:38:32,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:38:32,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732337910] [2022-12-06 16:38:32,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:38:32,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:38:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:38:32,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:38:32,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:38:32,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732337910] [2022-12-06 16:38:32,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732337910] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:38:32,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:38:32,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:38:32,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268986201] [2022-12-06 16:38:32,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:38:32,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:38:32,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:38:32,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:38:32,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:38:32,113 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 99 [2022-12-06 16:38:32,113 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 938 transitions, 10586 flow. Second operand has 8 states, 8 states have (on average 81.625) internal successors, (653), 8 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:32,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:38:32,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 99 [2022-12-06 16:38:32,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:38:34,200 INFO L130 PetriNetUnfolder]: 7467/17037 cut-off events. [2022-12-06 16:38:34,200 INFO L131 PetriNetUnfolder]: For 14866/26816 co-relation queries the response was YES. [2022-12-06 16:38:34,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59269 conditions, 17037 events. 7467/17037 cut-off events. For 14866/26816 co-relation queries the response was YES. Maximal size of possible extension queue 2035. Compared 195590 event pairs, 6 based on Foata normal form. 1308/17373 useless extension candidates. Maximal degree in co-relation 59192. Up to 5778 conditions per place. [2022-12-06 16:38:34,295 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 50 selfloop transitions, 106 changer transitions 403/646 dead transitions. [2022-12-06 16:38:34,295 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 646 transitions, 7176 flow [2022-12-06 16:38:34,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 16:38:34,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 16:38:34,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1375 transitions. [2022-12-06 16:38:34,299 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8680555555555556 [2022-12-06 16:38:34,300 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 98 predicate places. [2022-12-06 16:38:34,300 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 646 transitions, 7176 flow [2022-12-06 16:38:34,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 81.625) internal successors, (653), 8 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:34,301 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:38:34,301 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] [2022-12-06 16:38:34,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 16:38:34,301 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)] === [2022-12-06 16:38:34,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:38:34,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1948751429, now seen corresponding path program 1 times [2022-12-06 16:38:34,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:38:34,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045248765] [2022-12-06 16:38:34,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:38:34,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:38:34,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:38:34,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:38:34,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:38:34,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045248765] [2022-12-06 16:38:34,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045248765] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:38:34,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:38:34,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:38:34,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081887108] [2022-12-06 16:38:34,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:38:34,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:38:34,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:38:34,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:38:34,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:38:34,422 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 99 [2022-12-06 16:38:34,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 646 transitions, 7176 flow. Second operand has 7 states, 7 states have (on average 76.85714285714286) internal successors, (538), 7 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:34,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:38:34,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 99 [2022-12-06 16:38:34,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:38:36,118 INFO L130 PetriNetUnfolder]: 9902/21470 cut-off events. [2022-12-06 16:38:36,118 INFO L131 PetriNetUnfolder]: For 21959/47693 co-relation queries the response was YES. [2022-12-06 16:38:36,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77784 conditions, 21470 events. 9902/21470 cut-off events. For 21959/47693 co-relation queries the response was YES. Maximal size of possible extension queue 2650. Compared 248103 event pairs, 2 based on Foata normal form. 315/20163 useless extension candidates. Maximal degree in co-relation 77699. Up to 7630 conditions per place. [2022-12-06 16:38:36,216 INFO L137 encePairwiseOnDemand]: 86/99 looper letters, 49 selfloop transitions, 19 changer transitions 561/815 dead transitions. [2022-12-06 16:38:36,216 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 815 transitions, 10549 flow [2022-12-06 16:38:36,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-06 16:38:36,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-06 16:38:36,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1123 transitions. [2022-12-06 16:38:36,218 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8102453102453102 [2022-12-06 16:38:36,219 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 111 predicate places. [2022-12-06 16:38:36,219 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 815 transitions, 10549 flow [2022-12-06 16:38:36,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.85714285714286) internal successors, (538), 7 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:36,219 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:38:36,219 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] [2022-12-06 16:38:36,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 16:38:36,219 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:38:36,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:38:36,220 INFO L85 PathProgramCache]: Analyzing trace with hash -60077305, now seen corresponding path program 2 times [2022-12-06 16:38:36,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:38:36,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617061228] [2022-12-06 16:38:36,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:38:36,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:38:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:38:36,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:38:36,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:38:36,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617061228] [2022-12-06 16:38:36,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617061228] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:38:36,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:38:36,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:38:36,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471991399] [2022-12-06 16:38:36,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:38:36,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:38:36,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:38:36,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:38:36,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:38:36,324 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 99 [2022-12-06 16:38:36,325 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 815 transitions, 10549 flow. Second operand has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:36,325 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:38:36,325 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 99 [2022-12-06 16:38:36,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:38:38,968 INFO L130 PetriNetUnfolder]: 12235/26318 cut-off events. [2022-12-06 16:38:38,968 INFO L131 PetriNetUnfolder]: For 23154/39812 co-relation queries the response was YES. [2022-12-06 16:38:39,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96865 conditions, 26318 events. 12235/26318 cut-off events. For 23154/39812 co-relation queries the response was YES. Maximal size of possible extension queue 3263. Compared 309747 event pairs, 3 based on Foata normal form. 380/24999 useless extension candidates. Maximal degree in co-relation 96775. Up to 9488 conditions per place. [2022-12-06 16:38:39,075 INFO L137 encePairwiseOnDemand]: 93/99 looper letters, 41 selfloop transitions, 6 changer transitions 641/887 dead transitions. [2022-12-06 16:38:39,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 887 transitions, 12702 flow [2022-12-06 16:38:39,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 16:38:39,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 16:38:39,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 598 transitions. [2022-12-06 16:38:39,076 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.862914862914863 [2022-12-06 16:38:39,077 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 117 predicate places. [2022-12-06 16:38:39,077 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 887 transitions, 12702 flow [2022-12-06 16:38:39,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:39,077 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:38:39,077 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] [2022-12-06 16:38:39,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-06 16:38:39,077 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:38:39,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:38:39,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1405380483, now seen corresponding path program 3 times [2022-12-06 16:38:39,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:38:39,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490367173] [2022-12-06 16:38:39,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:38:39,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:38:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:38:39,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:38:39,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:38:39,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490367173] [2022-12-06 16:38:39,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490367173] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:38:39,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:38:39,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 16:38:39,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915535652] [2022-12-06 16:38:39,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:38:39,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 16:38:39,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:38:39,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 16:38:39,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-06 16:38:39,179 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 99 [2022-12-06 16:38:39,179 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 887 transitions, 12702 flow. Second operand has 9 states, 9 states have (on average 81.55555555555556) internal successors, (734), 9 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:39,179 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:38:39,179 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 99 [2022-12-06 16:38:39,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:38:42,400 INFO L130 PetriNetUnfolder]: 12042/24865 cut-off events. [2022-12-06 16:38:42,400 INFO L131 PetriNetUnfolder]: For 34326/66588 co-relation queries the response was YES. [2022-12-06 16:38:42,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108392 conditions, 24865 events. 12042/24865 cut-off events. For 34326/66588 co-relation queries the response was YES. Maximal size of possible extension queue 3209. Compared 287820 event pairs, 4 based on Foata normal form. 2336/25581 useless extension candidates. Maximal degree in co-relation 108298. Up to 9322 conditions per place. [2022-12-06 16:38:42,577 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 0 selfloop transitions, 0 changer transitions 574/574 dead transitions. [2022-12-06 16:38:42,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 574 transitions, 8302 flow [2022-12-06 16:38:42,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-06 16:38:42,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-06 16:38:42,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1612 transitions. [2022-12-06 16:38:42,596 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8569909622541202 [2022-12-06 16:38:42,597 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 103 predicate places. [2022-12-06 16:38:42,597 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 574 transitions, 8302 flow [2022-12-06 16:38:42,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.55555555555556) internal successors, (734), 9 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:42,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-06 16:38:42,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2022-12-06 16:38:42,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-06 16:38:42,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-06 16:38:42,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-06 16:38:42,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-06 16:38:42,618 INFO L458 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:38:42,620 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:38:42,620 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:38:42,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:38:42 BasicIcfg [2022-12-06 16:38:42,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:38:42,624 INFO L158 Benchmark]: Toolchain (without parser) took 21579.67ms. Allocated memory was 187.7MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 162.7MB in the beginning and 3.3GB in the end (delta: -3.1GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-12-06 16:38:42,624 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 187.7MB. Free memory was 164.0MB in the beginning and 163.9MB in the end (delta: 85.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:38:42,625 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.05ms. Allocated memory is still 187.7MB. Free memory was 162.7MB in the beginning and 138.6MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-06 16:38:42,625 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.49ms. Allocated memory is still 187.7MB. Free memory was 138.0MB in the beginning and 136.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:38:42,625 INFO L158 Benchmark]: Boogie Preprocessor took 37.80ms. Allocated memory is still 187.7MB. Free memory was 136.5MB in the beginning and 134.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 16:38:42,626 INFO L158 Benchmark]: RCFGBuilder took 357.60ms. Allocated memory is still 187.7MB. Free memory was 134.9MB in the beginning and 120.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-06 16:38:42,626 INFO L158 Benchmark]: TraceAbstraction took 20745.46ms. Allocated memory was 187.7MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 119.7MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-12-06 16:38:42,627 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 187.7MB. Free memory was 164.0MB in the beginning and 163.9MB in the end (delta: 85.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 387.05ms. Allocated memory is still 187.7MB. Free memory was 162.7MB in the beginning and 138.6MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.49ms. Allocated memory is still 187.7MB. Free memory was 138.0MB in the beginning and 136.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.80ms. Allocated memory is still 187.7MB. Free memory was 136.5MB in the beginning and 134.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 357.60ms. Allocated memory is still 187.7MB. Free memory was 134.9MB in the beginning and 120.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 20745.46ms. Allocated memory was 187.7MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 119.7MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 128 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 20.6s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 18.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 852 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 852 mSDsluCounter, 888 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 685 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1077 IncrementalHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 203 mSDtfsCounter, 1077 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 184 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16953occurred in iteration=5, InterpolantAutomatonStates: 152, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 708 NumberOfCodeBlocks, 708 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 697 ConstructedInterpolants, 0 QuantifiedInterpolants, 3131 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 16:38:42,654 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...