/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:27:48,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:27:48,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:27:48,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:27:48,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:27:48,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:27:48,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:27:48,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:27:48,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:27:48,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:27:48,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:27:48,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:27:48,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:27:48,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:27:48,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:27:48,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:27:48,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:27:48,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:27:48,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:27:48,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:27:48,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:27:48,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:27:48,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:27:48,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:27:48,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:27:48,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:27:48,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:27:48,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:27:48,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:27:48,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 20:27:48,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 20:27:48,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 20:27:48,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 20:27:48,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 20:27:48,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 20:27:48,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 20:27:48,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 20:27:48,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 20:27:48,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:27:48,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:27:48,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:27:48,624 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-05 20:27:48,649 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:27:48,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:27:48,651 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:27:48,651 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:27:48,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:27:48,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:27:48,652 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:27:48,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:27:48,652 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:27:48,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:27:48,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:27:48,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:27:48,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:27:48,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:27:48,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:27:48,653 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:27:48,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:27:48,653 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:27:48,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:27:48,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:27:48,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:27:48,654 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:27:48,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:27:48,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:27:48,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:27:48,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:27:48,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:27:48,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:27:48,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:27:48,655 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:27:48,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:27:48,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:27:48,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:27:48,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:27:48,929 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:27:48,929 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:27:48,931 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 20:27:49,881 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:27:50,119 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:27:50,120 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 20:27:50,129 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2674fb916/70e7ccfd93a04ab4853f9cb6af9aedb7/FLAG44ebf748e [2022-12-05 20:27:50,145 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2674fb916/70e7ccfd93a04ab4853f9cb6af9aedb7 [2022-12-05 20:27:50,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:27:50,147 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:27:50,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:27:50,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:27:50,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:27:50,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:27:50" (1/1) ... [2022-12-05 20:27:50,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c1e715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:50, skipping insertion in model container [2022-12-05 20:27:50,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:27:50" (1/1) ... [2022-12-05 20:27:50,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:27:50,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:27:50,336 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/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-05 20:27:50,472 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,484 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,487 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,488 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:27:50,496 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:27:50,507 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/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-05 20:27:50,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:50,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:50,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:27:50,583 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:27:50,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:50 WrapperNode [2022-12-05 20:27:50,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:27:50,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:27:50,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:27:50,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:27:50,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:50" (1/1) ... [2022-12-05 20:27:50,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:50" (1/1) ... [2022-12-05 20:27:50,629 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-05 20:27:50,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:27:50,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:27:50,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:27:50,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:27:50,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:50" (1/1) ... [2022-12-05 20:27:50,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:50" (1/1) ... [2022-12-05 20:27:50,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:50" (1/1) ... [2022-12-05 20:27:50,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:50" (1/1) ... [2022-12-05 20:27:50,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:50" (1/1) ... [2022-12-05 20:27:50,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:50" (1/1) ... [2022-12-05 20:27:50,658 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:50" (1/1) ... [2022-12-05 20:27:50,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:50" (1/1) ... [2022-12-05 20:27:50,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:27:50,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:27:50,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:27:50,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:27:50,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:50" (1/1) ... [2022-12-05 20:27:50,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:27:50,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:27:50,686 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 20:27:50,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 20:27:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:27:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 20:27:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:27:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:27:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:27:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-05 20:27:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-05 20:27:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-05 20:27:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-05 20:27:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-05 20:27:50,722 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-05 20:27:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:27:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 20:27:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:27:50,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:27:50,724 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:27:50,885 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:27:50,886 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:27:50,995 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:27:51,000 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:27:51,000 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 20:27:51,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:27:51 BoogieIcfgContainer [2022-12-05 20:27:51,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:27:51,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:27:51,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:27:51,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:27:51,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:27:50" (1/3) ... [2022-12-05 20:27:51,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dba94ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:27:51, skipping insertion in model container [2022-12-05 20:27:51,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:50" (2/3) ... [2022-12-05 20:27:51,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dba94ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:27:51, skipping insertion in model container [2022-12-05 20:27:51,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:27:51" (3/3) ... [2022-12-05 20:27:51,007 INFO L112 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 20:27:51,019 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:27:51,020 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 20:27:51,020 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:27:51,056 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 20:27:51,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 183 flow [2022-12-05 20:27:51,145 INFO L130 PetriNetUnfolder]: 2/81 cut-off events. [2022-12-05 20:27:51,146 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:27:51,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-12-05 20:27:51,150 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 84 transitions, 183 flow [2022-12-05 20:27:51,155 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 69 transitions, 147 flow [2022-12-05 20:27:51,157 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:27:51,180 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 69 transitions, 147 flow [2022-12-05 20:27:51,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 69 transitions, 147 flow [2022-12-05 20:27:51,208 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2022-12-05 20:27:51,208 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:27:51,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2022-12-05 20:27:51,211 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 69 transitions, 147 flow [2022-12-05 20:27:51,212 INFO L188 LiptonReduction]: Number of co-enabled transitions 974 [2022-12-05 20:27:53,001 INFO L203 LiptonReduction]: Total number of compositions: 53 [2022-12-05 20:27:53,012 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:27:53,016 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;@33638be9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:27:53,016 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-05 20:27:53,019 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2022-12-05 20:27:53,019 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:27:53,019 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:27:53,033 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:27:53,033 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 1 more)] === [2022-12-05 20:27:53,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:27:53,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1659103957, now seen corresponding path program 1 times [2022-12-05 20:27:53,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:27:53,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316397266] [2022-12-05 20:27:53,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:27:53,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:27:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:27:53,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:27:53,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:27:53,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316397266] [2022-12-05 20:27:53,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316397266] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:27:53,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:27:53,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 20:27:53,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865760604] [2022-12-05 20:27:53,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:27:53,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:27:53,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:27:53,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:27:53,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:27:53,324 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 17 [2022-12-05 20:27:53,325 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:53,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:27:53,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 17 [2022-12-05 20:27:53,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:27:53,425 INFO L130 PetriNetUnfolder]: 143/259 cut-off events. [2022-12-05 20:27:53,426 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-05 20:27:53,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 259 events. 143/259 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 993 event pairs, 53 based on Foata normal form. 9/267 useless extension candidates. Maximal degree in co-relation 519. Up to 154 conditions per place. [2022-12-05 20:27:53,430 INFO L137 encePairwiseOnDemand]: 13/17 looper letters, 17 selfloop transitions, 2 changer transitions 0/21 dead transitions. [2022-12-05 20:27:53,430 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 21 transitions, 89 flow [2022-12-05 20:27:53,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:27:53,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:27:53,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2022-12-05 20:27:53,438 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5490196078431373 [2022-12-05 20:27:53,440 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 43 flow. Second operand 3 states and 28 transitions. [2022-12-05 20:27:53,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 21 transitions, 89 flow [2022-12-05 20:27:53,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 21 transitions, 86 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 20:27:53,443 INFO L231 Difference]: Finished difference. Result has 26 places, 16 transitions, 46 flow [2022-12-05 20:27:53,444 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=26, PETRI_TRANSITIONS=16} [2022-12-05 20:27:53,449 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2022-12-05 20:27:53,449 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 16 transitions, 46 flow [2022-12-05 20:27:53,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:53,449 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:27:53,449 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:27:53,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:27:53,450 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 1 more)] === [2022-12-05 20:27:53,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:27:53,451 INFO L85 PathProgramCache]: Analyzing trace with hash 107383858, now seen corresponding path program 1 times [2022-12-05 20:27:53,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:27:53,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169306763] [2022-12-05 20:27:53,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:27:53,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:27:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:27:53,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:27:53,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:27:53,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169306763] [2022-12-05 20:27:53,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169306763] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:27:53,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:27:53,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:27:53,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405015716] [2022-12-05 20:27:53,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:27:53,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:27:53,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:27:53,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:27:53,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:27:53,563 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 17 [2022-12-05 20:27:53,563 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 46 flow. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:53,563 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:27:53,563 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 17 [2022-12-05 20:27:53,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:27:53,614 INFO L130 PetriNetUnfolder]: 223/400 cut-off events. [2022-12-05 20:27:53,614 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-12-05 20:27:53,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 879 conditions, 400 events. 223/400 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1663 event pairs, 43 based on Foata normal form. 24/424 useless extension candidates. Maximal degree in co-relation 868. Up to 168 conditions per place. [2022-12-05 20:27:53,616 INFO L137 encePairwiseOnDemand]: 13/17 looper letters, 23 selfloop transitions, 3 changer transitions 3/30 dead transitions. [2022-12-05 20:27:53,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 30 transitions, 137 flow [2022-12-05 20:27:53,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:27:53,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:27:53,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2022-12-05 20:27:53,617 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5147058823529411 [2022-12-05 20:27:53,617 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 46 flow. Second operand 4 states and 35 transitions. [2022-12-05 20:27:53,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 30 transitions, 137 flow [2022-12-05 20:27:53,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 30 transitions, 131 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:27:53,619 INFO L231 Difference]: Finished difference. Result has 29 places, 16 transitions, 56 flow [2022-12-05 20:27:53,619 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=56, PETRI_PLACES=29, PETRI_TRANSITIONS=16} [2022-12-05 20:27:53,619 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2022-12-05 20:27:53,619 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 16 transitions, 56 flow [2022-12-05 20:27:53,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:53,620 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:27:53,620 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:27:53,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:27:53,620 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 1 more)] === [2022-12-05 20:27:53,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:27:53,620 INFO L85 PathProgramCache]: Analyzing trace with hash -966069686, now seen corresponding path program 1 times [2022-12-05 20:27:53,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:27:53,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629403881] [2022-12-05 20:27:53,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:27:53,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:27:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:27:53,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:27:53,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:27:53,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629403881] [2022-12-05 20:27:53,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629403881] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:27:53,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:27:53,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:27:53,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595511107] [2022-12-05 20:27:53,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:27:53,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:27:53,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:27:53,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:27:53,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:27:53,704 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 17 [2022-12-05 20:27:53,704 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 16 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:53,704 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:27:53,704 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 17 [2022-12-05 20:27:53,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:27:53,769 INFO L130 PetriNetUnfolder]: 105/200 cut-off events. [2022-12-05 20:27:53,769 INFO L131 PetriNetUnfolder]: For 157/157 co-relation queries the response was YES. [2022-12-05 20:27:53,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 200 events. 105/200 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 703 event pairs, 27 based on Foata normal form. 12/211 useless extension candidates. Maximal degree in co-relation 521. Up to 123 conditions per place. [2022-12-05 20:27:53,771 INFO L137 encePairwiseOnDemand]: 11/17 looper letters, 20 selfloop transitions, 4 changer transitions 13/39 dead transitions. [2022-12-05 20:27:53,771 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 39 transitions, 204 flow [2022-12-05 20:27:53,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:27:53,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:27:53,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 49 transitions. [2022-12-05 20:27:53,772 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5764705882352941 [2022-12-05 20:27:53,772 INFO L175 Difference]: Start difference. First operand has 29 places, 16 transitions, 56 flow. Second operand 5 states and 49 transitions. [2022-12-05 20:27:53,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 39 transitions, 204 flow [2022-12-05 20:27:53,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 39 transitions, 177 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-12-05 20:27:53,773 INFO L231 Difference]: Finished difference. Result has 32 places, 19 transitions, 80 flow [2022-12-05 20:27:53,774 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=80, PETRI_PLACES=32, PETRI_TRANSITIONS=19} [2022-12-05 20:27:53,774 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 6 predicate places. [2022-12-05 20:27:53,774 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 19 transitions, 80 flow [2022-12-05 20:27:53,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:53,774 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:27:53,774 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:27:53,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:27:53,775 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 1 more)] === [2022-12-05 20:27:53,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:27:53,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1353095977, now seen corresponding path program 1 times [2022-12-05 20:27:53,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:27:53,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558124982] [2022-12-05 20:27:53,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:27:53,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:27:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:27:53,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:27:53,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:27:53,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558124982] [2022-12-05 20:27:53,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558124982] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:27:53,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:27:53,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:27:53,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430207267] [2022-12-05 20:27:53,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:27:53,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:27:53,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:27:53,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:27:53,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:27:53,861 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 17 [2022-12-05 20:27:53,861 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 19 transitions, 80 flow. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:53,861 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:27:53,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 17 [2022-12-05 20:27:53,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:27:53,915 INFO L130 PetriNetUnfolder]: 71/146 cut-off events. [2022-12-05 20:27:53,916 INFO L131 PetriNetUnfolder]: For 103/107 co-relation queries the response was YES. [2022-12-05 20:27:53,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 484 conditions, 146 events. 71/146 cut-off events. For 103/107 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 458 event pairs, 14 based on Foata normal form. 14/159 useless extension candidates. Maximal degree in co-relation 470. Up to 71 conditions per place. [2022-12-05 20:27:53,917 INFO L137 encePairwiseOnDemand]: 11/17 looper letters, 24 selfloop transitions, 7 changer transitions 12/45 dead transitions. [2022-12-05 20:27:53,917 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 45 transitions, 272 flow [2022-12-05 20:27:53,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 20:27:53,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 20:27:53,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 57 transitions. [2022-12-05 20:27:53,919 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5588235294117647 [2022-12-05 20:27:53,919 INFO L175 Difference]: Start difference. First operand has 32 places, 19 transitions, 80 flow. Second operand 6 states and 57 transitions. [2022-12-05 20:27:53,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 45 transitions, 272 flow [2022-12-05 20:27:53,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 45 transitions, 266 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-05 20:27:53,921 INFO L231 Difference]: Finished difference. Result has 36 places, 22 transitions, 130 flow [2022-12-05 20:27:53,921 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=130, PETRI_PLACES=36, PETRI_TRANSITIONS=22} [2022-12-05 20:27:53,922 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 10 predicate places. [2022-12-05 20:27:53,922 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 22 transitions, 130 flow [2022-12-05 20:27:53,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:53,922 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:27:53,922 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:27:53,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 20:27:53,922 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 1 more)] === [2022-12-05 20:27:53,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:27:53,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1462436457, now seen corresponding path program 1 times [2022-12-05 20:27:53,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:27:53,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604350842] [2022-12-05 20:27:53,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:27:53,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:27:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:27:54,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:27:54,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:27:54,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604350842] [2022-12-05 20:27:54,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604350842] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:27:54,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:27:54,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:27:54,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726219125] [2022-12-05 20:27:54,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:27:54,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:27:54,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:27:54,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:27:54,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-05 20:27:54,018 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 17 [2022-12-05 20:27:54,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 22 transitions, 130 flow. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:54,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:27:54,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 17 [2022-12-05 20:27:54,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:27:54,079 INFO L130 PetriNetUnfolder]: 50/107 cut-off events. [2022-12-05 20:27:54,079 INFO L131 PetriNetUnfolder]: For 182/190 co-relation queries the response was YES. [2022-12-05 20:27:54,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 107 events. 50/107 cut-off events. For 182/190 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 295 event pairs, 12 based on Foata normal form. 13/119 useless extension candidates. Maximal degree in co-relation 383. Up to 46 conditions per place. [2022-12-05 20:27:54,080 INFO L137 encePairwiseOnDemand]: 11/17 looper letters, 21 selfloop transitions, 10 changer transitions 6/39 dead transitions. [2022-12-05 20:27:54,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 39 transitions, 279 flow [2022-12-05 20:27:54,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 20:27:54,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 20:27:54,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 53 transitions. [2022-12-05 20:27:54,082 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.44537815126050423 [2022-12-05 20:27:54,082 INFO L175 Difference]: Start difference. First operand has 36 places, 22 transitions, 130 flow. Second operand 7 states and 53 transitions. [2022-12-05 20:27:54,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 39 transitions, 279 flow [2022-12-05 20:27:54,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 39 transitions, 243 flow, removed 14 selfloop flow, removed 4 redundant places. [2022-12-05 20:27:54,085 INFO L231 Difference]: Finished difference. Result has 39 places, 22 transitions, 132 flow [2022-12-05 20:27:54,085 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=132, PETRI_PLACES=39, PETRI_TRANSITIONS=22} [2022-12-05 20:27:54,085 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 13 predicate places. [2022-12-05 20:27:54,086 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 22 transitions, 132 flow [2022-12-05 20:27:54,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:54,086 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:27:54,086 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:27:54,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 20:27:54,086 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 1 more)] === [2022-12-05 20:27:54,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:27:54,087 INFO L85 PathProgramCache]: Analyzing trace with hash -441962892, now seen corresponding path program 1 times [2022-12-05 20:27:54,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:27:54,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796710507] [2022-12-05 20:27:54,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:27:54,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:27:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:27:54,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:27:54,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:27:54,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796710507] [2022-12-05 20:27:54,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796710507] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:27:54,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:27:54,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:27:54,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783125026] [2022-12-05 20:27:54,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:27:54,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:27:54,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:27:54,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:27:54,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:27:54,169 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 17 [2022-12-05 20:27:54,169 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 22 transitions, 132 flow. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:54,170 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:27:54,170 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 17 [2022-12-05 20:27:54,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:27:54,223 INFO L130 PetriNetUnfolder]: 96/192 cut-off events. [2022-12-05 20:27:54,224 INFO L131 PetriNetUnfolder]: For 300/300 co-relation queries the response was YES. [2022-12-05 20:27:54,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 683 conditions, 192 events. 96/192 cut-off events. For 300/300 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 613 event pairs, 13 based on Foata normal form. 1/193 useless extension candidates. Maximal degree in co-relation 667. Up to 84 conditions per place. [2022-12-05 20:27:54,225 INFO L137 encePairwiseOnDemand]: 11/17 looper letters, 35 selfloop transitions, 7 changer transitions 6/48 dead transitions. [2022-12-05 20:27:54,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 48 transitions, 363 flow [2022-12-05 20:27:54,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:27:54,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:27:54,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2022-12-05 20:27:54,226 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.43529411764705883 [2022-12-05 20:27:54,226 INFO L175 Difference]: Start difference. First operand has 39 places, 22 transitions, 132 flow. Second operand 5 states and 37 transitions. [2022-12-05 20:27:54,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 48 transitions, 363 flow [2022-12-05 20:27:54,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 48 transitions, 288 flow, removed 22 selfloop flow, removed 7 redundant places. [2022-12-05 20:27:54,229 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 128 flow [2022-12-05 20:27:54,229 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=128, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2022-12-05 20:27:54,230 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 9 predicate places. [2022-12-05 20:27:54,230 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 128 flow [2022-12-05 20:27:54,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:54,230 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:27:54,231 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:27:54,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 20:27:54,231 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 1 more)] === [2022-12-05 20:27:54,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:27:54,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1490655256, now seen corresponding path program 2 times [2022-12-05 20:27:54,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:27:54,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616583244] [2022-12-05 20:27:54,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:27:54,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:27:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:27:54,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:27:54,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:27:54,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616583244] [2022-12-05 20:27:54,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616583244] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:27:54,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:27:54,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:27:54,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653711660] [2022-12-05 20:27:54,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:27:54,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:27:54,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:27:54,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:27:54,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:27:54,319 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 17 [2022-12-05 20:27:54,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:54,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:27:54,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 17 [2022-12-05 20:27:54,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:27:54,364 INFO L130 PetriNetUnfolder]: 84/190 cut-off events. [2022-12-05 20:27:54,364 INFO L131 PetriNetUnfolder]: For 230/230 co-relation queries the response was YES. [2022-12-05 20:27:54,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 190 events. 84/190 cut-off events. For 230/230 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 714 event pairs, 12 based on Foata normal form. 1/191 useless extension candidates. Maximal degree in co-relation 630. Up to 110 conditions per place. [2022-12-05 20:27:54,365 INFO L137 encePairwiseOnDemand]: 14/17 looper letters, 0 selfloop transitions, 0 changer transitions 47/47 dead transitions. [2022-12-05 20:27:54,365 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 47 transitions, 320 flow [2022-12-05 20:27:54,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:27:54,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:27:54,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2022-12-05 20:27:54,366 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.47058823529411764 [2022-12-05 20:27:54,366 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 128 flow. Second operand 4 states and 32 transitions. [2022-12-05 20:27:54,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 47 transitions, 320 flow [2022-12-05 20:27:54,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 47 transitions, 320 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 20:27:54,367 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2022-12-05 20:27:54,368 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2022-12-05 20:27:54,368 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2022-12-05 20:27:54,368 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2022-12-05 20:27:54,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:54,370 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-05 20:27:54,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-05 20:27:54,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-05 20:27:54,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-05 20:27:54,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 20:27:54,371 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-12-05 20:27:54,374 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:27:54,374 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:27:54,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:27:54 BasicIcfg [2022-12-05 20:27:54,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:27:54,377 INFO L158 Benchmark]: Toolchain (without parser) took 4229.85ms. Allocated memory was 181.4MB in the beginning and 218.1MB in the end (delta: 36.7MB). Free memory was 155.6MB in the beginning and 174.1MB in the end (delta: -18.5MB). Peak memory consumption was 19.1MB. Max. memory is 8.0GB. [2022-12-05 20:27:54,378 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory was 105.8MB in the beginning and 105.8MB in the end (delta: 34.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:27:54,378 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.02ms. Allocated memory is still 181.4MB. Free memory was 155.1MB in the beginning and 132.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-05 20:27:54,378 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.48ms. Allocated memory is still 181.4MB. Free memory was 132.0MB in the beginning and 129.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:27:54,378 INFO L158 Benchmark]: Boogie Preprocessor took 30.22ms. Allocated memory is still 181.4MB. Free memory was 129.9MB in the beginning and 128.5MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 20:27:54,378 INFO L158 Benchmark]: RCFGBuilder took 340.71ms. Allocated memory is still 181.4MB. Free memory was 128.5MB in the beginning and 148.9MB in the end (delta: -20.4MB). Peak memory consumption was 8.1MB. Max. memory is 8.0GB. [2022-12-05 20:27:54,379 INFO L158 Benchmark]: TraceAbstraction took 3374.15ms. Allocated memory was 181.4MB in the beginning and 218.1MB in the end (delta: 36.7MB). Free memory was 148.4MB in the beginning and 174.1MB in the end (delta: -25.7MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. [2022-12-05 20:27:54,380 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory was 105.8MB in the beginning and 105.8MB in the end (delta: 34.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 435.02ms. Allocated memory is still 181.4MB. Free memory was 155.1MB in the beginning and 132.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.48ms. Allocated memory is still 181.4MB. Free memory was 132.0MB in the beginning and 129.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.22ms. Allocated memory is still 181.4MB. Free memory was 129.9MB in the beginning and 128.5MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 340.71ms. Allocated memory is still 181.4MB. Free memory was 128.5MB in the beginning and 148.9MB in the end (delta: -20.4MB). Peak memory consumption was 8.1MB. Max. memory is 8.0GB. * TraceAbstraction took 3374.15ms. Allocated memory was 181.4MB in the beginning and 218.1MB in the end (delta: 36.7MB). Free memory was 148.4MB in the beginning and 174.1MB in the end (delta: -25.7MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 78 PlacesBefore, 26 PlacesAfterwards, 69 TransitionsBefore, 17 TransitionsAfterwards, 974 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 53 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 680, independent: 646, independent conditional: 646, independent unconditional: 0, dependent: 34, dependent conditional: 34, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 680, independent: 646, independent conditional: 0, independent unconditional: 646, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 680, independent: 646, independent conditional: 0, independent unconditional: 646, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 680, independent: 646, independent conditional: 0, independent unconditional: 646, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 595, independent: 570, independent conditional: 0, independent unconditional: 570, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 595, independent: 564, independent conditional: 0, independent unconditional: 564, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 65, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 680, independent: 76, independent conditional: 0, independent unconditional: 76, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 595, unknown conditional: 0, unknown unconditional: 595] , Statistics on independence cache: Total cache size (in pairs): 886, Positive cache size: 861, Positive conditional cache size: 0, Positive unconditional cache size: 861, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - 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 7 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 132 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 132 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 349 IncrementalHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 4 mSDtfsCounter, 349 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=5, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 282 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 20:27:54,401 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...