/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 18:39:58,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:39:58,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:39:58,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:39:58,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:39:58,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:39:58,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:39:58,614 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:39:58,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:39:58,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:39:58,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:39:58,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:39:58,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:39:58,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:39:58,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:39:58,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:39:58,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:39:58,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:39:58,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:39:58,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:39:58,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:39:58,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:39:58,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:39:58,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:39:58,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 18:39:58,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 18:39:58,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 18:39:58,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 18:39:58,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 18:39:58,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 18:39:58,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 18:39:58,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 18:39:58,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 18:39:58,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 18:39:58,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 18:39:58,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 18:39:58,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 18:39:58,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 18:39:58,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:39:58,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:39:58,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:39:58,669 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-05 18:39:58,706 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:39:58,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:39:58,707 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:39:58,708 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:39:58,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:39:58,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:39:58,709 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:39:58,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:39:58,709 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:39:58,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:39:58,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:39:58,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:39:58,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:39:58,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:39:58,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:39:58,711 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:39:58,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:39:58,711 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:39:58,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:39:58,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:39:58,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:39:58,712 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:39:58,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:39:58,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:39:58,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:39:58,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:39:58,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:39:58,713 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:39:58,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:39:58,713 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:39:58,713 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:39:58,713 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:39:59,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:39:59,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:39:59,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:39:59,026 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:39:59,027 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:39:59,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 18:40:00,106 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:40:00,367 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:40:00,368 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 18:40:00,389 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adca00bb4/2b2fb556bd9045e497c3709d6ac791f0/FLAG5dc53a38b [2022-12-05 18:40:00,666 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adca00bb4/2b2fb556bd9045e497c3709d6ac791f0 [2022-12-05 18:40:00,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:40:00,669 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:40:00,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:40:00,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:40:00,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:40:00,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:40:00" (1/1) ... [2022-12-05 18:40:00,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a0d2a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:00, skipping insertion in model container [2022-12-05 18:40:00,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:40:00" (1/1) ... [2022-12-05 18:40:00,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:40:00,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:40:00,914 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/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-05 18:40:01,084 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,085 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,085 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,087 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,087 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,087 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,088 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,088 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,088 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,103 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:40:01,115 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:40:01,130 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/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-05 18:40:01,161 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,161 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,163 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,163 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,163 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,164 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,164 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,164 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,165 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,165 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,165 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,165 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,166 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,166 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,166 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,167 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,167 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,167 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,168 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,168 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,168 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,168 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,173 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,173 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,174 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,174 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,175 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:01,176 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:01,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:40:01,220 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:40:01,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:01 WrapperNode [2022-12-05 18:40:01,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:40:01,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:40:01,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:40:01,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:40:01,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:01" (1/1) ... [2022-12-05 18:40:01,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:01" (1/1) ... [2022-12-05 18:40:01,280 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-12-05 18:40:01,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:40:01,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:40:01,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:40:01,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:40:01,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:01" (1/1) ... [2022-12-05 18:40:01,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:01" (1/1) ... [2022-12-05 18:40:01,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:01" (1/1) ... [2022-12-05 18:40:01,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:01" (1/1) ... [2022-12-05 18:40:01,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:01" (1/1) ... [2022-12-05 18:40:01,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:01" (1/1) ... [2022-12-05 18:40:01,313 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:01" (1/1) ... [2022-12-05 18:40:01,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:01" (1/1) ... [2022-12-05 18:40:01,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:40:01,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:40:01,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:40:01,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:40:01,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:01" (1/1) ... [2022-12-05 18:40:01,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:40:01,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:40:01,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 18:40:01,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 18:40:01,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:40:01,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 18:40:01,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:40:01,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:40:01,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:40:01,401 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-05 18:40:01,401 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-05 18:40:01,402 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-05 18:40:01,402 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-05 18:40:01,402 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-05 18:40:01,402 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-05 18:40:01,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:40:01,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 18:40:01,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:40:01,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:40:01,404 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 18:40:01,568 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:40:01,570 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:40:01,704 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:40:01,711 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:40:01,711 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 18:40:01,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:40:01 BoogieIcfgContainer [2022-12-05 18:40:01,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:40:01,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:40:01,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:40:01,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:40:01,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:40:00" (1/3) ... [2022-12-05 18:40:01,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332a3c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:40:01, skipping insertion in model container [2022-12-05 18:40:01,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:01" (2/3) ... [2022-12-05 18:40:01,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332a3c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:40:01, skipping insertion in model container [2022-12-05 18:40:01,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:40:01" (3/3) ... [2022-12-05 18:40:01,721 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 18:40:01,740 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:40:01,740 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 18:40:01,740 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:40:01,813 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 18:40:01,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 83 transitions, 181 flow [2022-12-05 18:40:01,917 INFO L130 PetriNetUnfolder]: 2/80 cut-off events. [2022-12-05 18:40:01,918 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:40:01,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-12-05 18:40:01,923 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 83 transitions, 181 flow [2022-12-05 18:40:01,926 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 68 transitions, 145 flow [2022-12-05 18:40:01,936 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:40:01,942 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;@3b2ef4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:40:01,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-05 18:40:01,970 INFO L130 PetriNetUnfolder]: 1/67 cut-off events. [2022-12-05 18:40:01,971 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:40:01,971 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:01,971 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] [2022-12-05 18:40:01,972 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 18:40:01,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:01,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1374275782, now seen corresponding path program 1 times [2022-12-05 18:40:01,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:01,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250939014] [2022-12-05 18:40:01,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:01,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:02,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:40:02,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:02,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250939014] [2022-12-05 18:40:02,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250939014] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:02,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:02,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:40:02,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413308538] [2022-12-05 18:40:02,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:02,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:40:02,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:02,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:40:02,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:40:02,854 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 83 [2022-12-05 18:40:02,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 68 transitions, 145 flow. Second operand has 7 states, 7 states have (on average 64.71428571428571) internal successors, (453), 7 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:40:02,858 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:02,858 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 83 [2022-12-05 18:40:02,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:03,281 INFO L130 PetriNetUnfolder]: 163/484 cut-off events. [2022-12-05 18:40:03,282 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-05 18:40:03,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 815 conditions, 484 events. 163/484 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2588 event pairs, 18 based on Foata normal form. 18/484 useless extension candidates. Maximal degree in co-relation 782. Up to 107 conditions per place. [2022-12-05 18:40:03,292 INFO L137 encePairwiseOnDemand]: 72/83 looper letters, 20 selfloop transitions, 6 changer transitions 35/112 dead transitions. [2022-12-05 18:40:03,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 112 transitions, 361 flow [2022-12-05 18:40:03,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-05 18:40:03,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-05 18:40:03,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 886 transitions. [2022-12-05 18:40:03,314 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8211306765523633 [2022-12-05 18:40:03,315 INFO L175 Difference]: Start difference. First operand has 77 places, 68 transitions, 145 flow. Second operand 13 states and 886 transitions. [2022-12-05 18:40:03,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 112 transitions, 361 flow [2022-12-05 18:40:03,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 112 transitions, 356 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 18:40:03,323 INFO L231 Difference]: Finished difference. Result has 97 places, 69 transitions, 201 flow [2022-12-05 18:40:03,325 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=201, PETRI_PLACES=97, PETRI_TRANSITIONS=69} [2022-12-05 18:40:03,331 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, 20 predicate places. [2022-12-05 18:40:03,331 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 69 transitions, 201 flow [2022-12-05 18:40:03,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.71428571428571) internal successors, (453), 7 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:40:03,332 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:03,332 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] [2022-12-05 18:40:03,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:40:03,333 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 18:40:03,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:03,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1955449031, now seen corresponding path program 1 times [2022-12-05 18:40:03,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:03,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368187434] [2022-12-05 18:40:03,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:03,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:03,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:40:03,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:03,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368187434] [2022-12-05 18:40:03,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368187434] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:03,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:03,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:40:03,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959330938] [2022-12-05 18:40:03,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:03,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:40:03,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:03,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:40:03,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:40:03,680 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 83 [2022-12-05 18:40:03,681 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 69 transitions, 201 flow. Second operand has 7 states, 7 states have (on average 63.0) internal successors, (441), 7 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:40:03,681 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:03,681 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 83 [2022-12-05 18:40:03,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:04,102 INFO L130 PetriNetUnfolder]: 258/817 cut-off events. [2022-12-05 18:40:04,102 INFO L131 PetriNetUnfolder]: For 1420/1539 co-relation queries the response was YES. [2022-12-05 18:40:04,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2194 conditions, 817 events. 258/817 cut-off events. For 1420/1539 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 5195 event pairs, 2 based on Foata normal form. 22/822 useless extension candidates. Maximal degree in co-relation 2148. Up to 152 conditions per place. [2022-12-05 18:40:04,112 INFO L137 encePairwiseOnDemand]: 72/83 looper letters, 36 selfloop transitions, 13 changer transitions 59/157 dead transitions. [2022-12-05 18:40:04,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 157 transitions, 974 flow [2022-12-05 18:40:04,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-05 18:40:04,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-05 18:40:04,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1137 transitions. [2022-12-05 18:40:04,116 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8058114812189936 [2022-12-05 18:40:04,116 INFO L175 Difference]: Start difference. First operand has 97 places, 69 transitions, 201 flow. Second operand 17 states and 1137 transitions. [2022-12-05 18:40:04,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 157 transitions, 974 flow [2022-12-05 18:40:04,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 157 transitions, 858 flow, removed 40 selfloop flow, removed 8 redundant places. [2022-12-05 18:40:04,129 INFO L231 Difference]: Finished difference. Result has 112 places, 77 transitions, 351 flow [2022-12-05 18:40:04,129 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=351, PETRI_PLACES=112, PETRI_TRANSITIONS=77} [2022-12-05 18:40:04,130 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, 35 predicate places. [2022-12-05 18:40:04,130 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 77 transitions, 351 flow [2022-12-05 18:40:04,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.0) internal successors, (441), 7 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:40:04,131 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:04,131 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] [2022-12-05 18:40:04,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:40:04,131 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 18:40:04,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:04,132 INFO L85 PathProgramCache]: Analyzing trace with hash -865756796, now seen corresponding path program 1 times [2022-12-05 18:40:04,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:04,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547178317] [2022-12-05 18:40:04,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:04,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:04,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:40:04,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:04,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547178317] [2022-12-05 18:40:04,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547178317] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:04,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:04,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:40:04,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669480639] [2022-12-05 18:40:04,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:04,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:40:04,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:04,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:40:04,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:40:04,355 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 83 [2022-12-05 18:40:04,356 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 77 transitions, 351 flow. Second operand has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:40:04,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:04,356 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 83 [2022-12-05 18:40:04,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:04,588 INFO L130 PetriNetUnfolder]: 95/471 cut-off events. [2022-12-05 18:40:04,589 INFO L131 PetriNetUnfolder]: For 2405/2865 co-relation queries the response was YES. [2022-12-05 18:40:04,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1651 conditions, 471 events. 95/471 cut-off events. For 2405/2865 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2847 event pairs, 7 based on Foata normal form. 11/468 useless extension candidates. Maximal degree in co-relation 1594. Up to 79 conditions per place. [2022-12-05 18:40:04,596 INFO L137 encePairwiseOnDemand]: 74/83 looper letters, 26 selfloop transitions, 22 changer transitions 21/121 dead transitions. [2022-12-05 18:40:04,596 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 121 transitions, 933 flow [2022-12-05 18:40:04,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-05 18:40:04,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-05 18:40:04,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 872 transitions. [2022-12-05 18:40:04,600 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8081556997219648 [2022-12-05 18:40:04,600 INFO L175 Difference]: Start difference. First operand has 112 places, 77 transitions, 351 flow. Second operand 13 states and 872 transitions. [2022-12-05 18:40:04,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 121 transitions, 933 flow [2022-12-05 18:40:04,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 121 transitions, 759 flow, removed 87 selfloop flow, removed 9 redundant places. [2022-12-05 18:40:04,614 INFO L231 Difference]: Finished difference. Result has 113 places, 89 transitions, 504 flow [2022-12-05 18:40:04,614 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=504, PETRI_PLACES=113, PETRI_TRANSITIONS=89} [2022-12-05 18:40:04,616 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, 36 predicate places. [2022-12-05 18:40:04,616 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 89 transitions, 504 flow [2022-12-05 18:40:04,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:40:04,617 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:04,617 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] [2022-12-05 18:40:04,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:40:04,617 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 18:40:04,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:04,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1711753894, now seen corresponding path program 1 times [2022-12-05 18:40:04,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:04,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594069420] [2022-12-05 18:40:04,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:04,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:04,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:40:04,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:04,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594069420] [2022-12-05 18:40:04,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594069420] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:04,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:04,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:40:04,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289347491] [2022-12-05 18:40:04,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:04,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:40:04,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:04,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:40:04,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:40:04,832 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 83 [2022-12-05 18:40:04,833 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 89 transitions, 504 flow. Second operand has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:40:04,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:04,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 83 [2022-12-05 18:40:04,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:05,058 INFO L130 PetriNetUnfolder]: 73/422 cut-off events. [2022-12-05 18:40:05,058 INFO L131 PetriNetUnfolder]: For 1681/2074 co-relation queries the response was YES. [2022-12-05 18:40:05,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1401 conditions, 422 events. 73/422 cut-off events. For 1681/2074 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2408 event pairs, 5 based on Foata normal form. 13/421 useless extension candidates. Maximal degree in co-relation 1340. Up to 86 conditions per place. [2022-12-05 18:40:05,062 INFO L137 encePairwiseOnDemand]: 75/83 looper letters, 39 selfloop transitions, 11 changer transitions 26/128 dead transitions. [2022-12-05 18:40:05,062 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 128 transitions, 1016 flow [2022-12-05 18:40:05,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-05 18:40:05,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-05 18:40:05,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 868 transitions. [2022-12-05 18:40:05,065 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8044485634847081 [2022-12-05 18:40:05,065 INFO L175 Difference]: Start difference. First operand has 113 places, 89 transitions, 504 flow. Second operand 13 states and 868 transitions. [2022-12-05 18:40:05,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 128 transitions, 1016 flow [2022-12-05 18:40:05,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 128 transitions, 897 flow, removed 46 selfloop flow, removed 7 redundant places. [2022-12-05 18:40:05,072 INFO L231 Difference]: Finished difference. Result has 127 places, 92 transitions, 537 flow [2022-12-05 18:40:05,072 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=537, PETRI_PLACES=127, PETRI_TRANSITIONS=92} [2022-12-05 18:40:05,073 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, 50 predicate places. [2022-12-05 18:40:05,073 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 92 transitions, 537 flow [2022-12-05 18:40:05,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:40:05,074 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:05,074 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] [2022-12-05 18:40:05,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 18:40:05,074 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 18:40:05,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:05,074 INFO L85 PathProgramCache]: Analyzing trace with hash -567801350, now seen corresponding path program 1 times [2022-12-05 18:40:05,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:05,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892551372] [2022-12-05 18:40:05,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:05,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:05,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:40:05,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:05,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892551372] [2022-12-05 18:40:05,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892551372] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:05,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:05,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:40:05,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772420938] [2022-12-05 18:40:05,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:05,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:40:05,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:05,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:40:05,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:40:05,261 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 83 [2022-12-05 18:40:05,262 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 92 transitions, 537 flow. Second operand has 7 states, 7 states have (on average 65.14285714285714) internal successors, (456), 7 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:40:05,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:05,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 83 [2022-12-05 18:40:05,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:05,416 INFO L130 PetriNetUnfolder]: 49/333 cut-off events. [2022-12-05 18:40:05,416 INFO L131 PetriNetUnfolder]: For 1682/2135 co-relation queries the response was YES. [2022-12-05 18:40:05,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 333 events. 49/333 cut-off events. For 1682/2135 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1714 event pairs, 4 based on Foata normal form. 13/334 useless extension candidates. Maximal degree in co-relation 1066. Up to 79 conditions per place. [2022-12-05 18:40:05,420 INFO L137 encePairwiseOnDemand]: 74/83 looper letters, 34 selfloop transitions, 14 changer transitions 12/112 dead transitions. [2022-12-05 18:40:05,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 112 transitions, 875 flow [2022-12-05 18:40:05,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 18:40:05,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 18:40:05,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 670 transitions. [2022-12-05 18:40:05,423 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8072289156626506 [2022-12-05 18:40:05,423 INFO L175 Difference]: Start difference. First operand has 127 places, 92 transitions, 537 flow. Second operand 10 states and 670 transitions. [2022-12-05 18:40:05,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 112 transitions, 875 flow [2022-12-05 18:40:05,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 112 transitions, 806 flow, removed 32 selfloop flow, removed 7 redundant places. [2022-12-05 18:40:05,431 INFO L231 Difference]: Finished difference. Result has 128 places, 93 transitions, 586 flow [2022-12-05 18:40:05,431 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=511, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=586, PETRI_PLACES=128, PETRI_TRANSITIONS=93} [2022-12-05 18:40:05,432 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, 51 predicate places. [2022-12-05 18:40:05,432 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 93 transitions, 586 flow [2022-12-05 18:40:05,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.14285714285714) internal successors, (456), 7 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:40:05,433 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:05,433 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] [2022-12-05 18:40:05,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 18:40:05,433 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 18:40:05,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:05,434 INFO L85 PathProgramCache]: Analyzing trace with hash 50858919, now seen corresponding path program 1 times [2022-12-05 18:40:05,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:05,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328768784] [2022-12-05 18:40:05,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:05,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:05,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:40:05,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:05,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328768784] [2022-12-05 18:40:05,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328768784] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:05,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:05,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:40:05,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402129617] [2022-12-05 18:40:05,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:05,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:40:05,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:05,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:40:05,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:40:05,604 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 83 [2022-12-05 18:40:05,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 93 transitions, 586 flow. Second operand has 8 states, 8 states have (on average 64.875) internal successors, (519), 8 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:40:05,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:05,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 83 [2022-12-05 18:40:05,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:05,771 INFO L130 PetriNetUnfolder]: 51/332 cut-off events. [2022-12-05 18:40:05,771 INFO L131 PetriNetUnfolder]: For 1955/3307 co-relation queries the response was YES. [2022-12-05 18:40:05,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1163 conditions, 332 events. 51/332 cut-off events. For 1955/3307 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1744 event pairs, 6 based on Foata normal form. 11/331 useless extension candidates. Maximal degree in co-relation 1129. Up to 40 conditions per place. [2022-12-05 18:40:05,774 INFO L137 encePairwiseOnDemand]: 74/83 looper letters, 21 selfloop transitions, 10 changer transitions 34/117 dead transitions. [2022-12-05 18:40:05,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 117 transitions, 981 flow [2022-12-05 18:40:05,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-05 18:40:05,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-05 18:40:05,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 737 transitions. [2022-12-05 18:40:05,777 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8072289156626506 [2022-12-05 18:40:05,777 INFO L175 Difference]: Start difference. First operand has 128 places, 93 transitions, 586 flow. Second operand 11 states and 737 transitions. [2022-12-05 18:40:05,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 117 transitions, 981 flow [2022-12-05 18:40:05,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 117 transitions, 897 flow, removed 31 selfloop flow, removed 7 redundant places. [2022-12-05 18:40:05,786 INFO L231 Difference]: Finished difference. Result has 129 places, 77 transitions, 395 flow [2022-12-05 18:40:05,786 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=395, PETRI_PLACES=129, PETRI_TRANSITIONS=77} [2022-12-05 18:40:05,787 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, 52 predicate places. [2022-12-05 18:40:05,787 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 77 transitions, 395 flow [2022-12-05 18:40:05,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 64.875) internal successors, (519), 8 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:40:05,788 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:05,788 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] [2022-12-05 18:40:05,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 18:40:05,788 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 18:40:05,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:05,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1585495015, now seen corresponding path program 2 times [2022-12-05 18:40:05,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:05,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749388166] [2022-12-05 18:40:05,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:05,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:05,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:40:05,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:05,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749388166] [2022-12-05 18:40:05,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749388166] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:05,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:05,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:40:05,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032867524] [2022-12-05 18:40:05,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:05,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:40:05,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:05,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:40:05,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:40:05,930 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 83 [2022-12-05 18:40:05,930 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 77 transitions, 395 flow. Second operand has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:40:05,930 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:05,930 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 83 [2022-12-05 18:40:05,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:06,057 INFO L130 PetriNetUnfolder]: 16/182 cut-off events. [2022-12-05 18:40:06,057 INFO L131 PetriNetUnfolder]: For 748/954 co-relation queries the response was YES. [2022-12-05 18:40:06,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 182 events. 16/182 cut-off events. For 748/954 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 703 event pairs, 1 based on Foata normal form. 5/183 useless extension candidates. Maximal degree in co-relation 530. Up to 23 conditions per place. [2022-12-05 18:40:06,059 INFO L137 encePairwiseOnDemand]: 75/83 looper letters, 9 selfloop transitions, 4 changer transitions 26/92 dead transitions. [2022-12-05 18:40:06,059 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 92 transitions, 569 flow [2022-12-05 18:40:06,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 18:40:06,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 18:40:06,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 688 transitions. [2022-12-05 18:40:06,061 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8289156626506025 [2022-12-05 18:40:06,061 INFO L175 Difference]: Start difference. First operand has 129 places, 77 transitions, 395 flow. Second operand 10 states and 688 transitions. [2022-12-05 18:40:06,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 92 transitions, 569 flow [2022-12-05 18:40:06,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 92 transitions, 436 flow, removed 45 selfloop flow, removed 20 redundant places. [2022-12-05 18:40:06,067 INFO L231 Difference]: Finished difference. Result has 114 places, 66 transitions, 232 flow [2022-12-05 18:40:06,067 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=232, PETRI_PLACES=114, PETRI_TRANSITIONS=66} [2022-12-05 18:40:06,068 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, 37 predicate places. [2022-12-05 18:40:06,068 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 66 transitions, 232 flow [2022-12-05 18:40:06,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:40:06,068 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:06,069 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] [2022-12-05 18:40:06,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 18:40:06,069 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 1 more)] === [2022-12-05 18:40:06,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:06,069 INFO L85 PathProgramCache]: Analyzing trace with hash 762206959, now seen corresponding path program 1 times [2022-12-05 18:40:06,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:06,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970538105] [2022-12-05 18:40:06,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:06,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:06,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:06,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:40:06,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:06,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970538105] [2022-12-05 18:40:06,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970538105] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:06,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:06,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:40:06,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119662448] [2022-12-05 18:40:06,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:06,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:40:06,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:06,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:40:06,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:40:06,272 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 83 [2022-12-05 18:40:06,273 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 66 transitions, 232 flow. Second operand has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:40:06,273 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:06,273 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 83 [2022-12-05 18:40:06,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:06,386 INFO L130 PetriNetUnfolder]: 93/291 cut-off events. [2022-12-05 18:40:06,386 INFO L131 PetriNetUnfolder]: For 164/167 co-relation queries the response was YES. [2022-12-05 18:40:06,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 583 conditions, 291 events. 93/291 cut-off events. For 164/167 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1352 event pairs, 2 based on Foata normal form. 8/292 useless extension candidates. Maximal degree in co-relation 558. Up to 86 conditions per place. [2022-12-05 18:40:06,388 INFO L137 encePairwiseOnDemand]: 74/83 looper letters, 12 selfloop transitions, 5 changer transitions 21/91 dead transitions. [2022-12-05 18:40:06,388 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 91 transitions, 358 flow [2022-12-05 18:40:06,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 18:40:06,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 18:40:06,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 634 transitions. [2022-12-05 18:40:06,391 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8487282463186078 [2022-12-05 18:40:06,391 INFO L175 Difference]: Start difference. First operand has 114 places, 66 transitions, 232 flow. Second operand 9 states and 634 transitions. [2022-12-05 18:40:06,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 91 transitions, 358 flow [2022-12-05 18:40:06,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 91 transitions, 301 flow, removed 12 selfloop flow, removed 20 redundant places. [2022-12-05 18:40:06,394 INFO L231 Difference]: Finished difference. Result has 101 places, 68 transitions, 225 flow [2022-12-05 18:40:06,394 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=225, PETRI_PLACES=101, PETRI_TRANSITIONS=68} [2022-12-05 18:40:06,397 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, 24 predicate places. [2022-12-05 18:40:06,397 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 68 transitions, 225 flow [2022-12-05 18:40:06,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:40:06,398 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:06,398 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] [2022-12-05 18:40:06,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 18:40:06,399 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 1 more)] === [2022-12-05 18:40:06,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:06,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1351490843, now seen corresponding path program 1 times [2022-12-05 18:40:06,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:06,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823206475] [2022-12-05 18:40:06,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:06,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:06,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:40:06,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:06,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823206475] [2022-12-05 18:40:06,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823206475] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:06,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:06,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:40:06,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745004976] [2022-12-05 18:40:06,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:06,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:40:06,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:06,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:40:06,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:40:06,565 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 83 [2022-12-05 18:40:06,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 68 transitions, 225 flow. Second operand has 7 states, 7 states have (on average 67.57142857142857) internal successors, (473), 7 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:40:06,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:06,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 83 [2022-12-05 18:40:06,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:06,673 INFO L130 PetriNetUnfolder]: 42/179 cut-off events. [2022-12-05 18:40:06,673 INFO L131 PetriNetUnfolder]: For 242/273 co-relation queries the response was YES. [2022-12-05 18:40:06,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 179 events. 42/179 cut-off events. For 242/273 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 646 event pairs, 0 based on Foata normal form. 9/186 useless extension candidates. Maximal degree in co-relation 524. Up to 64 conditions per place. [2022-12-05 18:40:06,674 INFO L137 encePairwiseOnDemand]: 74/83 looper letters, 8 selfloop transitions, 7 changer transitions 25/93 dead transitions. [2022-12-05 18:40:06,674 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 93 transitions, 482 flow [2022-12-05 18:40:06,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 18:40:06,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 18:40:06,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 702 transitions. [2022-12-05 18:40:06,677 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8457831325301205 [2022-12-05 18:40:06,677 INFO L175 Difference]: Start difference. First operand has 101 places, 68 transitions, 225 flow. Second operand 10 states and 702 transitions. [2022-12-05 18:40:06,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 93 transitions, 482 flow [2022-12-05 18:40:06,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 93 transitions, 450 flow, removed 9 selfloop flow, removed 7 redundant places. [2022-12-05 18:40:06,680 INFO L231 Difference]: Finished difference. Result has 105 places, 68 transitions, 242 flow [2022-12-05 18:40:06,680 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=242, PETRI_PLACES=105, PETRI_TRANSITIONS=68} [2022-12-05 18:40:06,682 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, 28 predicate places. [2022-12-05 18:40:06,682 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 68 transitions, 242 flow [2022-12-05 18:40:06,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.57142857142857) internal successors, (473), 7 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:40:06,682 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:06,683 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] [2022-12-05 18:40:06,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-05 18:40:06,683 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 1 more)] === [2022-12-05 18:40:06,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:06,683 INFO L85 PathProgramCache]: Analyzing trace with hash -522925690, now seen corresponding path program 1 times [2022-12-05 18:40:06,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:06,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135962444] [2022-12-05 18:40:06,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:06,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:06,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:40:06,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:06,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135962444] [2022-12-05 18:40:06,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135962444] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:06,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:06,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:40:06,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624464571] [2022-12-05 18:40:06,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:06,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:40:06,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:06,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:40:06,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:40:06,827 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 83 [2022-12-05 18:40:06,827 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 68 transitions, 242 flow. Second operand has 8 states, 8 states have (on average 67.5) internal successors, (540), 8 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:40:06,828 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:06,828 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 83 [2022-12-05 18:40:06,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:06,925 INFO L130 PetriNetUnfolder]: 4/77 cut-off events. [2022-12-05 18:40:06,926 INFO L131 PetriNetUnfolder]: For 181/203 co-relation queries the response was YES. [2022-12-05 18:40:06,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 77 events. 4/77 cut-off events. For 181/203 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 94 event pairs, 0 based on Foata normal form. 6/83 useless extension candidates. Maximal degree in co-relation 196. Up to 13 conditions per place. [2022-12-05 18:40:06,926 INFO L137 encePairwiseOnDemand]: 74/83 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2022-12-05 18:40:06,927 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 71 transitions, 344 flow [2022-12-05 18:40:06,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-05 18:40:06,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-05 18:40:06,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 752 transitions. [2022-12-05 18:40:06,929 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.823658269441402 [2022-12-05 18:40:06,929 INFO L175 Difference]: Start difference. First operand has 105 places, 68 transitions, 242 flow. Second operand 11 states and 752 transitions. [2022-12-05 18:40:06,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 71 transitions, 344 flow [2022-12-05 18:40:06,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 71 transitions, 277 flow, removed 23 selfloop flow, removed 11 redundant places. [2022-12-05 18:40:06,931 INFO L231 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2022-12-05 18:40:06,931 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=94, PETRI_TRANSITIONS=0} [2022-12-05 18:40:06,932 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, 17 predicate places. [2022-12-05 18:40:06,932 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 0 transitions, 0 flow [2022-12-05 18:40:06,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 67.5) internal successors, (540), 8 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:40:06,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-05 18:40:06,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-05 18:40:06,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-05 18:40:06,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-05 18:40:06,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-05 18:40:06,936 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:40:06,939 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 18:40:06,939 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 18:40:06,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 06:40:06 BasicIcfg [2022-12-05 18:40:06,943 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 18:40:06,944 INFO L158 Benchmark]: Toolchain (without parser) took 6274.83ms. Allocated memory was 221.2MB in the beginning and 342.9MB in the end (delta: 121.6MB). Free memory was 196.8MB in the beginning and 150.9MB in the end (delta: 45.8MB). Peak memory consumption was 168.5MB. Max. memory is 8.0GB. [2022-12-05 18:40:06,944 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 221.2MB. Free memory is still 198.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 18:40:06,944 INFO L158 Benchmark]: CACSL2BoogieTranslator took 552.41ms. Allocated memory is still 221.2MB. Free memory was 196.2MB in the beginning and 173.7MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-05 18:40:06,944 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.94ms. Allocated memory is still 221.2MB. Free memory was 173.7MB in the beginning and 171.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 18:40:06,945 INFO L158 Benchmark]: Boogie Preprocessor took 34.22ms. Allocated memory is still 221.2MB. Free memory was 171.6MB in the beginning and 170.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 18:40:06,945 INFO L158 Benchmark]: RCFGBuilder took 396.95ms. Allocated memory is still 221.2MB. Free memory was 170.0MB in the beginning and 156.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-05 18:40:06,945 INFO L158 Benchmark]: TraceAbstraction took 5227.61ms. Allocated memory was 221.2MB in the beginning and 342.9MB in the end (delta: 121.6MB). Free memory was 155.9MB in the beginning and 150.9MB in the end (delta: 4.9MB). Peak memory consumption was 127.6MB. Max. memory is 8.0GB. [2022-12-05 18:40:06,946 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 221.2MB. Free memory is still 198.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 552.41ms. Allocated memory is still 221.2MB. Free memory was 196.2MB in the beginning and 173.7MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.94ms. Allocated memory is still 221.2MB. Free memory was 173.7MB in the beginning and 171.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.22ms. Allocated memory is still 221.2MB. Free memory was 171.6MB in the beginning and 170.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 396.95ms. Allocated memory is still 221.2MB. Free memory was 170.0MB in the beginning and 156.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 5227.61ms. Allocated memory was 221.2MB in the beginning and 342.9MB in the end (delta: 121.6MB). Free memory was 155.9MB in the beginning and 150.9MB in the end (delta: 4.9MB). Peak memory consumption was 127.6MB. 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 7 procedures, 105 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: 5.1s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 411 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 411 mSDsluCounter, 585 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 446 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 608 IncrementalHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 139 mSDtfsCounter, 608 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=586occurred in iteration=5, InterpolantAutomatonStates: 117, 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, 2.0s InterpolantComputationTime, 541 NumberOfCodeBlocks, 541 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 531 ConstructedInterpolants, 0 QuantifiedInterpolants, 2249 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 18:40:06,960 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...