/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/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 19:06:56,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 19:06:56,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 19:06:56,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 19:06:56,118 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 19:06:56,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 19:06:56,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 19:06:56,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 19:06:56,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 19:06:56,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 19:06:56,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 19:06:56,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 19:06:56,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 19:06:56,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 19:06:56,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 19:06:56,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 19:06:56,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 19:06:56,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 19:06:56,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 19:06:56,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 19:06:56,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 19:06:56,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 19:06:56,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 19:06:56,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 19:06:56,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 19:06:56,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 19:06:56,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 19:06:56,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 19:06:56,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 19:06:56,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 19:06:56,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 19:06:56,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 19:06:56,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 19:06:56,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 19:06:56,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 19:06:56,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 19:06:56,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 19:06:56,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 19:06:56,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 19:06:56,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 19:06:56,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 19:06:56,179 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 [2022-12-11 19:06:56,216 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 19:06:56,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 19:06:56,217 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 19:06:56,218 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 19:06:56,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 19:06:56,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 19:06:56,219 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 19:06:56,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 19:06:56,220 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 19:06:56,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 19:06:56,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 19:06:56,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 19:06:56,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 19:06:56,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 19:06:56,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 19:06:56,221 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 19:06:56,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 19:06:56,221 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 19:06:56,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 19:06:56,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 19:06:56,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 19:06:56,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 19:06:56,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 19:06:56,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:06:56,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 19:06:56,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 19:06:56,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 19:06:56,223 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 19:06:56,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 19:06:56,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 19:06:56,223 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 19:06:56,223 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-11 19:06:56,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 19:06:56,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 19:06:56,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 19:06:56,581 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 19:06:56,581 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 19:06:56,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-12-11 19:06:57,737 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 19:06:58,013 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 19:06:58,013 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-12-11 19:06:58,033 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b88335caa/abfc4634b7464416a089e0120dc75e5e/FLAGa6c3c53de [2022-12-11 19:06:58,049 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b88335caa/abfc4634b7464416a089e0120dc75e5e [2022-12-11 19:06:58,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 19:06:58,052 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 19:06:58,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 19:06:58,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 19:06:58,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 19:06:58,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:06:58" (1/1) ... [2022-12-11 19:06:58,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f42e9cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:58, skipping insertion in model container [2022-12-11 19:06:58,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:06:58" (1/1) ... [2022-12-11 19:06:58,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 19:06:58,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 19:06:58,307 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/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2022-12-11 19:06:58,489 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,490 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,491 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,497 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,497 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,529 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:06:58,590 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 19:06:58,603 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/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2022-12-11 19:06:58,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,643 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,650 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,650 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,651 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,651 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,652 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,652 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,667 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:58,682 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:58,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:06:58,725 INFO L208 MainTranslator]: Completed translation [2022-12-11 19:06:58,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:58 WrapperNode [2022-12-11 19:06:58,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 19:06:58,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 19:06:58,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 19:06:58,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 19:06:58,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:58" (1/1) ... [2022-12-11 19:06:58,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:58" (1/1) ... [2022-12-11 19:06:58,790 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 150 [2022-12-11 19:06:58,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 19:06:58,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 19:06:58,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 19:06:58,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 19:06:58,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:58" (1/1) ... [2022-12-11 19:06:58,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:58" (1/1) ... [2022-12-11 19:06:58,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:58" (1/1) ... [2022-12-11 19:06:58,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:58" (1/1) ... [2022-12-11 19:06:58,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:58" (1/1) ... [2022-12-11 19:06:58,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:58" (1/1) ... [2022-12-11 19:06:58,828 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:58" (1/1) ... [2022-12-11 19:06:58,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:58" (1/1) ... [2022-12-11 19:06:58,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 19:06:58,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 19:06:58,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 19:06:58,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 19:06:58,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:58" (1/1) ... [2022-12-11 19:06:58,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:06:58,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:06:58,879 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) [2022-12-11 19:06:58,900 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 [2022-12-11 19:06:58,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 19:06:58,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 19:06:58,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 19:06:58,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 19:06:58,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 19:06:58,917 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-11 19:06:58,917 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-11 19:06:58,917 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-11 19:06:58,918 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-11 19:06:58,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 19:06:58,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 19:06:58,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 19:06:58,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 19:06:58,919 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 19:06:59,041 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 19:06:59,042 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 19:06:59,376 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 19:06:59,564 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 19:06:59,564 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 19:06:59,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:06:59 BoogieIcfgContainer [2022-12-11 19:06:59,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 19:06:59,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 19:06:59,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 19:06:59,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 19:06:59,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 07:06:58" (1/3) ... [2022-12-11 19:06:59,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae4ad8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:06:59, skipping insertion in model container [2022-12-11 19:06:59,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:58" (2/3) ... [2022-12-11 19:06:59,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae4ad8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:06:59, skipping insertion in model container [2022-12-11 19:06:59,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:06:59" (3/3) ... [2022-12-11 19:06:59,576 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-12-11 19:06:59,594 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 19:06:59,595 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-11 19:06:59,595 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 19:06:59,642 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 19:06:59,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 92 transitions, 194 flow [2022-12-11 19:06:59,748 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2022-12-11 19:06:59,749 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:06:59,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-12-11 19:06:59,755 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 92 transitions, 194 flow [2022-12-11 19:06:59,758 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 90 transitions, 186 flow [2022-12-11 19:06:59,766 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 19:06:59,772 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;@778e9cf6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 19:06:59,772 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-11 19:06:59,800 INFO L130 PetriNetUnfolder]: 0/56 cut-off events. [2022-12-11 19:06:59,800 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:06:59,801 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:06:59,801 INFO L214 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] [2022-12-11 19:06:59,802 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:06:59,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:06:59,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1150441605, now seen corresponding path program 1 times [2022-12-11 19:06:59,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:06:59,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120167262] [2022-12-11 19:06:59,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:06:59,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:06:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:07:00,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:07:00,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:07:00,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120167262] [2022-12-11 19:07:00,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120167262] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:07:00,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:07:00,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-11 19:07:00,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358657226] [2022-12-11 19:07:00,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:07:00,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-11 19:07:00,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:07:00,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-11 19:07:00,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-11 19:07:00,437 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 92 [2022-12-11 19:07:00,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 90 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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) [2022-12-11 19:07:00,438 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:07:00,439 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 92 [2022-12-11 19:07:00,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:07:00,609 INFO L130 PetriNetUnfolder]: 60/288 cut-off events. [2022-12-11 19:07:00,610 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-11 19:07:00,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 288 events. 60/288 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1265 event pairs, 9 based on Foata normal form. 24/295 useless extension candidates. Maximal degree in co-relation 369. Up to 88 conditions per place. [2022-12-11 19:07:00,613 INFO L137 encePairwiseOnDemand]: 87/92 looper letters, 14 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2022-12-11 19:07:00,614 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 91 transitions, 220 flow [2022-12-11 19:07:00,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-11 19:07:00,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-11 19:07:00,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2022-12-11 19:07:00,627 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9130434782608695 [2022-12-11 19:07:00,628 INFO L175 Difference]: Start difference. First operand has 95 places, 90 transitions, 186 flow. Second operand 3 states and 252 transitions. [2022-12-11 19:07:00,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 91 transitions, 220 flow [2022-12-11 19:07:00,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 91 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-11 19:07:00,637 INFO L231 Difference]: Finished difference. Result has 93 places, 86 transitions, 180 flow [2022-12-11 19:07:00,639 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=180, PETRI_PLACES=93, PETRI_TRANSITIONS=86} [2022-12-11 19:07:00,643 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -2 predicate places. [2022-12-11 19:07:00,643 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 86 transitions, 180 flow [2022-12-11 19:07:00,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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) [2022-12-11 19:07:00,644 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:07:00,644 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:07:00,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 19:07:00,645 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:07:00,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:07:00,646 INFO L85 PathProgramCache]: Analyzing trace with hash 2031287058, now seen corresponding path program 1 times [2022-12-11 19:07:00,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:07:00,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497743563] [2022-12-11 19:07:00,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:07:00,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:07:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:07:01,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:07:01,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:07:01,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497743563] [2022-12-11 19:07:01,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497743563] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:07:01,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:07:01,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:07:01,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038190329] [2022-12-11 19:07:01,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:07:01,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:07:01,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:07:01,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:07:01,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:07:01,515 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 92 [2022-12-11 19:07:01,516 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 86 transitions, 180 flow. Second operand has 7 states, 7 states have (on average 62.714285714285715) internal successors, (439), 7 states have internal predecessors, (439), 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) [2022-12-11 19:07:01,516 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:07:01,516 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 92 [2022-12-11 19:07:01,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:07:01,996 INFO L130 PetriNetUnfolder]: 377/1014 cut-off events. [2022-12-11 19:07:01,996 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-12-11 19:07:02,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1723 conditions, 1014 events. 377/1014 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 6122 event pairs, 91 based on Foata normal form. 0/977 useless extension candidates. Maximal degree in co-relation 1667. Up to 292 conditions per place. [2022-12-11 19:07:02,008 INFO L137 encePairwiseOnDemand]: 85/92 looper letters, 29 selfloop transitions, 3 changer transitions 53/136 dead transitions. [2022-12-11 19:07:02,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 136 transitions, 442 flow [2022-12-11 19:07:02,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 19:07:02,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 19:07:02,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 680 transitions. [2022-12-11 19:07:02,016 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7391304347826086 [2022-12-11 19:07:02,016 INFO L175 Difference]: Start difference. First operand has 93 places, 86 transitions, 180 flow. Second operand 10 states and 680 transitions. [2022-12-11 19:07:02,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 136 transitions, 442 flow [2022-12-11 19:07:02,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 136 transitions, 432 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-11 19:07:02,021 INFO L231 Difference]: Finished difference. Result has 107 places, 78 transitions, 182 flow [2022-12-11 19:07:02,021 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=182, PETRI_PLACES=107, PETRI_TRANSITIONS=78} [2022-12-11 19:07:02,022 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 12 predicate places. [2022-12-11 19:07:02,022 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 78 transitions, 182 flow [2022-12-11 19:07:02,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 62.714285714285715) internal successors, (439), 7 states have internal predecessors, (439), 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) [2022-12-11 19:07:02,023 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:07:02,024 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:07:02,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 19:07:02,024 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:07:02,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:07:02,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1286454193, now seen corresponding path program 1 times [2022-12-11 19:07:02,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:07:02,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162435633] [2022-12-11 19:07:02,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:07:02,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:07:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:07:02,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:07:02,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:07:02,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162435633] [2022-12-11 19:07:02,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162435633] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:07:02,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:07:02,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:07:02,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127894850] [2022-12-11 19:07:02,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:07:02,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:07:02,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:07:02,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:07:02,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:07:02,627 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 92 [2022-12-11 19:07:02,628 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 78 transitions, 182 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) [2022-12-11 19:07:02,628 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:07:02,628 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 92 [2022-12-11 19:07:02,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:07:02,966 INFO L130 PetriNetUnfolder]: 177/473 cut-off events. [2022-12-11 19:07:02,966 INFO L131 PetriNetUnfolder]: For 122/122 co-relation queries the response was YES. [2022-12-11 19:07:02,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 961 conditions, 473 events. 177/473 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2126 event pairs, 47 based on Foata normal form. 15/467 useless extension candidates. Maximal degree in co-relation 907. Up to 116 conditions per place. [2022-12-11 19:07:02,971 INFO L137 encePairwiseOnDemand]: 86/92 looper letters, 31 selfloop transitions, 2 changer transitions 31/115 dead transitions. [2022-12-11 19:07:02,971 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 115 transitions, 407 flow [2022-12-11 19:07:02,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 19:07:02,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 19:07:02,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 606 transitions. [2022-12-11 19:07:02,974 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7318840579710145 [2022-12-11 19:07:02,974 INFO L175 Difference]: Start difference. First operand has 107 places, 78 transitions, 182 flow. Second operand 9 states and 606 transitions. [2022-12-11 19:07:02,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 115 transitions, 407 flow [2022-12-11 19:07:02,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 115 transitions, 371 flow, removed 14 selfloop flow, removed 9 redundant places. [2022-12-11 19:07:02,981 INFO L231 Difference]: Finished difference. Result has 99 places, 78 transitions, 184 flow [2022-12-11 19:07:02,981 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=184, PETRI_PLACES=99, PETRI_TRANSITIONS=78} [2022-12-11 19:07:02,983 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 4 predicate places. [2022-12-11 19:07:02,983 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 78 transitions, 184 flow [2022-12-11 19:07:02,983 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) [2022-12-11 19:07:02,983 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:07:02,983 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:07:02,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 19:07:02,984 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:07:02,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:07:02,985 INFO L85 PathProgramCache]: Analyzing trace with hash 26814307, now seen corresponding path program 1 times [2022-12-11 19:07:02,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:07:02,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524301679] [2022-12-11 19:07:02,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:07:02,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:07:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:07:04,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:07:04,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:07:04,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524301679] [2022-12-11 19:07:04,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524301679] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:07:04,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:07:04,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-11 19:07:04,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52056636] [2022-12-11 19:07:04,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:07:04,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-11 19:07:04,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:07:04,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-11 19:07:04,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-12-11 19:07:04,589 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 92 [2022-12-11 19:07:04,590 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 78 transitions, 184 flow. Second operand has 13 states, 13 states have (on average 65.53846153846153) internal successors, (852), 13 states have internal predecessors, (852), 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) [2022-12-11 19:07:04,590 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:07:04,590 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 92 [2022-12-11 19:07:04,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:07:05,218 INFO L130 PetriNetUnfolder]: 119/378 cut-off events. [2022-12-11 19:07:05,219 INFO L131 PetriNetUnfolder]: For 85/85 co-relation queries the response was YES. [2022-12-11 19:07:05,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 754 conditions, 378 events. 119/378 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1578 event pairs, 21 based on Foata normal form. 6/364 useless extension candidates. Maximal degree in co-relation 699. Up to 139 conditions per place. [2022-12-11 19:07:05,221 INFO L137 encePairwiseOnDemand]: 80/92 looper letters, 30 selfloop transitions, 9 changer transitions 19/113 dead transitions. [2022-12-11 19:07:05,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 113 transitions, 401 flow [2022-12-11 19:07:05,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-11 19:07:05,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-11 19:07:05,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 956 transitions. [2022-12-11 19:07:05,224 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7422360248447205 [2022-12-11 19:07:05,225 INFO L175 Difference]: Start difference. First operand has 99 places, 78 transitions, 184 flow. Second operand 14 states and 956 transitions. [2022-12-11 19:07:05,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 113 transitions, 401 flow [2022-12-11 19:07:05,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 113 transitions, 363 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-12-11 19:07:05,228 INFO L231 Difference]: Finished difference. Result has 107 places, 82 transitions, 229 flow [2022-12-11 19:07:05,228 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=229, PETRI_PLACES=107, PETRI_TRANSITIONS=82} [2022-12-11 19:07:05,229 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 12 predicate places. [2022-12-11 19:07:05,229 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 82 transitions, 229 flow [2022-12-11 19:07:05,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 65.53846153846153) internal successors, (852), 13 states have internal predecessors, (852), 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) [2022-12-11 19:07:05,230 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:07:05,230 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:07:05,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 19:07:05,230 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:07:05,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:07:05,231 INFO L85 PathProgramCache]: Analyzing trace with hash 217506337, now seen corresponding path program 2 times [2022-12-11 19:07:05,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:07:05,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581267365] [2022-12-11 19:07:05,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:07:05,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:07:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:07:06,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:07:06,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:07:06,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581267365] [2022-12-11 19:07:06,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581267365] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:07:06,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:07:06,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-11 19:07:06,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542804928] [2022-12-11 19:07:06,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:07:06,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-11 19:07:06,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:07:06,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-11 19:07:06,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2022-12-11 19:07:06,169 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 92 [2022-12-11 19:07:06,171 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 82 transitions, 229 flow. Second operand has 15 states, 15 states have (on average 65.33333333333333) internal successors, (980), 15 states have internal predecessors, (980), 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) [2022-12-11 19:07:06,171 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:07:06,176 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 92 [2022-12-11 19:07:06,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:07:06,641 INFO L130 PetriNetUnfolder]: 132/425 cut-off events. [2022-12-11 19:07:06,642 INFO L131 PetriNetUnfolder]: For 482/555 co-relation queries the response was YES. [2022-12-11 19:07:06,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1076 conditions, 425 events. 132/425 cut-off events. For 482/555 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1852 event pairs, 21 based on Foata normal form. 11/407 useless extension candidates. Maximal degree in co-relation 1010. Up to 161 conditions per place. [2022-12-11 19:07:06,645 INFO L137 encePairwiseOnDemand]: 77/92 looper letters, 25 selfloop transitions, 14 changer transitions 22/116 dead transitions. [2022-12-11 19:07:06,645 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 116 transitions, 511 flow [2022-12-11 19:07:06,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-11 19:07:06,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-11 19:07:06,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1020 transitions. [2022-12-11 19:07:06,648 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7391304347826086 [2022-12-11 19:07:06,648 INFO L175 Difference]: Start difference. First operand has 107 places, 82 transitions, 229 flow. Second operand 15 states and 1020 transitions. [2022-12-11 19:07:06,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 116 transitions, 511 flow [2022-12-11 19:07:06,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 116 transitions, 486 flow, removed 7 selfloop flow, removed 7 redundant places. [2022-12-11 19:07:06,655 INFO L231 Difference]: Finished difference. Result has 115 places, 88 transitions, 310 flow [2022-12-11 19:07:06,655 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=310, PETRI_PLACES=115, PETRI_TRANSITIONS=88} [2022-12-11 19:07:06,657 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 20 predicate places. [2022-12-11 19:07:06,658 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 88 transitions, 310 flow [2022-12-11 19:07:06,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 65.33333333333333) internal successors, (980), 15 states have internal predecessors, (980), 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) [2022-12-11 19:07:06,659 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:07:06,659 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:07:06,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 19:07:06,659 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:07:06,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:07:06,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1821912495, now seen corresponding path program 3 times [2022-12-11 19:07:06,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:07:06,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101327841] [2022-12-11 19:07:06,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:07:06,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:07:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:07:08,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:07:08,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:07:08,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101327841] [2022-12-11 19:07:08,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101327841] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:07:08,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:07:08,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-11 19:07:08,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030550288] [2022-12-11 19:07:08,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:07:08,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-11 19:07:08,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:07:08,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-11 19:07:08,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-12-11 19:07:08,181 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 92 [2022-12-11 19:07:08,182 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 88 transitions, 310 flow. Second operand has 15 states, 15 states have (on average 64.4) internal successors, (966), 15 states have internal predecessors, (966), 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) [2022-12-11 19:07:08,182 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:07:08,183 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 92 [2022-12-11 19:07:08,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:07:08,807 INFO L130 PetriNetUnfolder]: 131/401 cut-off events. [2022-12-11 19:07:08,807 INFO L131 PetriNetUnfolder]: For 1464/1602 co-relation queries the response was YES. [2022-12-11 19:07:08,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1443 conditions, 401 events. 131/401 cut-off events. For 1464/1602 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1708 event pairs, 29 based on Foata normal form. 10/388 useless extension candidates. Maximal degree in co-relation 1369. Up to 149 conditions per place. [2022-12-11 19:07:08,810 INFO L137 encePairwiseOnDemand]: 80/92 looper letters, 30 selfloop transitions, 13 changer transitions 19/116 dead transitions. [2022-12-11 19:07:08,810 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 116 transitions, 664 flow [2022-12-11 19:07:08,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-11 19:07:08,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-11 19:07:08,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1003 transitions. [2022-12-11 19:07:08,814 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7268115942028985 [2022-12-11 19:07:08,814 INFO L175 Difference]: Start difference. First operand has 115 places, 88 transitions, 310 flow. Second operand 15 states and 1003 transitions. [2022-12-11 19:07:08,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 116 transitions, 664 flow [2022-12-11 19:07:08,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 116 transitions, 629 flow, removed 10 selfloop flow, removed 8 redundant places. [2022-12-11 19:07:08,819 INFO L231 Difference]: Finished difference. Result has 122 places, 89 transitions, 355 flow [2022-12-11 19:07:08,820 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=355, PETRI_PLACES=122, PETRI_TRANSITIONS=89} [2022-12-11 19:07:08,820 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 27 predicate places. [2022-12-11 19:07:08,820 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 89 transitions, 355 flow [2022-12-11 19:07:08,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 64.4) internal successors, (966), 15 states have internal predecessors, (966), 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) [2022-12-11 19:07:08,821 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:07:08,821 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:07:08,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 19:07:08,822 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:07:08,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:07:08,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1164348083, now seen corresponding path program 4 times [2022-12-11 19:07:08,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:07:08,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170804895] [2022-12-11 19:07:08,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:07:08,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:07:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:07:09,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:07:09,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:07:09,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170804895] [2022-12-11 19:07:09,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170804895] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:07:09,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:07:09,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-11 19:07:09,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307067989] [2022-12-11 19:07:09,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:07:09,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-11 19:07:09,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:07:09,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-11 19:07:09,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-11 19:07:09,989 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 92 [2022-12-11 19:07:09,990 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 89 transitions, 355 flow. Second operand has 13 states, 13 states have (on average 64.61538461538461) internal successors, (840), 13 states have internal predecessors, (840), 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) [2022-12-11 19:07:09,990 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:07:09,991 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 92 [2022-12-11 19:07:09,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:07:10,517 INFO L130 PetriNetUnfolder]: 144/463 cut-off events. [2022-12-11 19:07:10,518 INFO L131 PetriNetUnfolder]: For 2152/2311 co-relation queries the response was YES. [2022-12-11 19:07:10,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1666 conditions, 463 events. 144/463 cut-off events. For 2152/2311 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2326 event pairs, 26 based on Foata normal form. 12/449 useless extension candidates. Maximal degree in co-relation 1600. Up to 148 conditions per place. [2022-12-11 19:07:10,522 INFO L137 encePairwiseOnDemand]: 81/92 looper letters, 36 selfloop transitions, 9 changer transitions 22/121 dead transitions. [2022-12-11 19:07:10,523 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 121 transitions, 769 flow [2022-12-11 19:07:10,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:07:10,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:07:10,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 878 transitions. [2022-12-11 19:07:10,525 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7341137123745819 [2022-12-11 19:07:10,526 INFO L175 Difference]: Start difference. First operand has 122 places, 89 transitions, 355 flow. Second operand 13 states and 878 transitions. [2022-12-11 19:07:10,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 121 transitions, 769 flow [2022-12-11 19:07:10,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 121 transitions, 627 flow, removed 61 selfloop flow, removed 16 redundant places. [2022-12-11 19:07:10,532 INFO L231 Difference]: Finished difference. Result has 119 places, 91 transitions, 360 flow [2022-12-11 19:07:10,532 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=360, PETRI_PLACES=119, PETRI_TRANSITIONS=91} [2022-12-11 19:07:10,533 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 24 predicate places. [2022-12-11 19:07:10,533 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 91 transitions, 360 flow [2022-12-11 19:07:10,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 64.61538461538461) internal successors, (840), 13 states have internal predecessors, (840), 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) [2022-12-11 19:07:10,534 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:07:10,534 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:07:10,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 19:07:10,534 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:07:10,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:07:10,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1682090122, now seen corresponding path program 1 times [2022-12-11 19:07:10,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:07:10,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114987677] [2022-12-11 19:07:10,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:07:10,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:07:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:07:10,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:07:10,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:07:10,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114987677] [2022-12-11 19:07:10,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114987677] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:07:10,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:07:10,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:07:10,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19115919] [2022-12-11 19:07:10,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:07:10,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:07:10,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:07:10,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:07:10,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:07:10,846 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 92 [2022-12-11 19:07:10,847 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 91 transitions, 360 flow. Second operand has 7 states, 7 states have (on average 70.42857142857143) internal successors, (493), 7 states have internal predecessors, (493), 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) [2022-12-11 19:07:10,847 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:07:10,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 92 [2022-12-11 19:07:10,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:07:11,109 INFO L130 PetriNetUnfolder]: 133/470 cut-off events. [2022-12-11 19:07:11,109 INFO L131 PetriNetUnfolder]: For 1387/1531 co-relation queries the response was YES. [2022-12-11 19:07:11,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1606 conditions, 470 events. 133/470 cut-off events. For 1387/1531 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2555 event pairs, 46 based on Foata normal form. 25/472 useless extension candidates. Maximal degree in co-relation 1538. Up to 159 conditions per place. [2022-12-11 19:07:11,113 INFO L137 encePairwiseOnDemand]: 82/92 looper letters, 27 selfloop transitions, 8 changer transitions 20/115 dead transitions. [2022-12-11 19:07:11,113 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 115 transitions, 662 flow [2022-12-11 19:07:11,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 19:07:11,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 19:07:11,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 516 transitions. [2022-12-11 19:07:11,115 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8012422360248447 [2022-12-11 19:07:11,115 INFO L175 Difference]: Start difference. First operand has 119 places, 91 transitions, 360 flow. Second operand 7 states and 516 transitions. [2022-12-11 19:07:11,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 115 transitions, 662 flow [2022-12-11 19:07:11,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 115 transitions, 620 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-12-11 19:07:11,121 INFO L231 Difference]: Finished difference. Result has 116 places, 95 transitions, 391 flow [2022-12-11 19:07:11,121 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=391, PETRI_PLACES=116, PETRI_TRANSITIONS=95} [2022-12-11 19:07:11,123 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 21 predicate places. [2022-12-11 19:07:11,123 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 95 transitions, 391 flow [2022-12-11 19:07:11,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.42857142857143) internal successors, (493), 7 states have internal predecessors, (493), 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) [2022-12-11 19:07:11,124 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:07:11,124 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:07:11,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-11 19:07:11,125 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:07:11,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:07:11,125 INFO L85 PathProgramCache]: Analyzing trace with hash 930666544, now seen corresponding path program 2 times [2022-12-11 19:07:11,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:07:11,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253100222] [2022-12-11 19:07:11,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:07:11,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:07:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:07:12,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:07:12,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:07:12,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253100222] [2022-12-11 19:07:12,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253100222] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:07:12,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:07:12,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-11 19:07:12,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506880679] [2022-12-11 19:07:12,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:07:12,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 19:07:12,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:07:12,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 19:07:12,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-12-11 19:07:12,319 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 92 [2022-12-11 19:07:12,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 95 transitions, 391 flow. Second operand has 16 states, 16 states have (on average 60.625) internal successors, (970), 16 states have internal predecessors, (970), 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) [2022-12-11 19:07:12,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:07:12,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 92 [2022-12-11 19:07:12,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:07:12,947 INFO L130 PetriNetUnfolder]: 126/452 cut-off events. [2022-12-11 19:07:12,947 INFO L131 PetriNetUnfolder]: For 1505/1859 co-relation queries the response was YES. [2022-12-11 19:07:12,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1711 conditions, 452 events. 126/452 cut-off events. For 1505/1859 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2325 event pairs, 18 based on Foata normal form. 20/455 useless extension candidates. Maximal degree in co-relation 1642. Up to 150 conditions per place. [2022-12-11 19:07:12,951 INFO L137 encePairwiseOnDemand]: 76/92 looper letters, 48 selfloop transitions, 16 changer transitions 28/142 dead transitions. [2022-12-11 19:07:12,951 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 142 transitions, 972 flow [2022-12-11 19:07:12,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 19:07:12,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 19:07:12,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1138 transitions. [2022-12-11 19:07:12,955 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6871980676328503 [2022-12-11 19:07:12,955 INFO L175 Difference]: Start difference. First operand has 116 places, 95 transitions, 391 flow. Second operand 18 states and 1138 transitions. [2022-12-11 19:07:12,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 142 transitions, 972 flow [2022-12-11 19:07:12,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 142 transitions, 935 flow, removed 13 selfloop flow, removed 5 redundant places. [2022-12-11 19:07:12,964 INFO L231 Difference]: Finished difference. Result has 135 places, 102 transitions, 511 flow [2022-12-11 19:07:12,964 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=511, PETRI_PLACES=135, PETRI_TRANSITIONS=102} [2022-12-11 19:07:12,965 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 40 predicate places. [2022-12-11 19:07:12,965 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 102 transitions, 511 flow [2022-12-11 19:07:12,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 60.625) internal successors, (970), 16 states have internal predecessors, (970), 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) [2022-12-11 19:07:12,966 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:07:12,966 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:07:12,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-11 19:07:12,966 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:07:12,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:07:12,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1673535732, now seen corresponding path program 3 times [2022-12-11 19:07:12,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:07:12,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076924167] [2022-12-11 19:07:12,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:07:12,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:07:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:07:13,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:07:13,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:07:13,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076924167] [2022-12-11 19:07:13,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076924167] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:07:13,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:07:13,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-11 19:07:13,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106300712] [2022-12-11 19:07:13,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:07:13,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-11 19:07:13,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:07:13,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-11 19:07:13,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-11 19:07:13,505 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 92 [2022-12-11 19:07:13,506 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 102 transitions, 511 flow. Second operand has 10 states, 10 states have (on average 66.1) internal successors, (661), 10 states have internal predecessors, (661), 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) [2022-12-11 19:07:13,506 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:07:13,506 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 92 [2022-12-11 19:07:13,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:07:13,833 INFO L130 PetriNetUnfolder]: 124/466 cut-off events. [2022-12-11 19:07:13,834 INFO L131 PetriNetUnfolder]: For 2222/2725 co-relation queries the response was YES. [2022-12-11 19:07:13,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2016 conditions, 466 events. 124/466 cut-off events. For 2222/2725 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2496 event pairs, 18 based on Foata normal form. 42/489 useless extension candidates. Maximal degree in co-relation 1932. Up to 142 conditions per place. [2022-12-11 19:07:13,838 INFO L137 encePairwiseOnDemand]: 79/92 looper letters, 32 selfloop transitions, 19 changer transitions 34/140 dead transitions. [2022-12-11 19:07:13,838 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 140 transitions, 1075 flow [2022-12-11 19:07:13,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-11 19:07:13,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-11 19:07:13,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 765 transitions. [2022-12-11 19:07:13,841 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7559288537549407 [2022-12-11 19:07:13,841 INFO L175 Difference]: Start difference. First operand has 135 places, 102 transitions, 511 flow. Second operand 11 states and 765 transitions. [2022-12-11 19:07:13,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 140 transitions, 1075 flow [2022-12-11 19:07:13,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 140 transitions, 972 flow, removed 43 selfloop flow, removed 13 redundant places. [2022-12-11 19:07:13,853 INFO L231 Difference]: Finished difference. Result has 130 places, 103 transitions, 545 flow [2022-12-11 19:07:13,854 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=545, PETRI_PLACES=130, PETRI_TRANSITIONS=103} [2022-12-11 19:07:13,854 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 35 predicate places. [2022-12-11 19:07:13,855 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 103 transitions, 545 flow [2022-12-11 19:07:13,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 66.1) internal successors, (661), 10 states have internal predecessors, (661), 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) [2022-12-11 19:07:13,855 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:07:13,855 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:07:13,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-11 19:07:13,857 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:07:13,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:07:13,857 INFO L85 PathProgramCache]: Analyzing trace with hash 627130836, now seen corresponding path program 4 times [2022-12-11 19:07:13,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:07:13,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77999939] [2022-12-11 19:07:13,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:07:13,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:07:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:07:14,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:07:14,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:07:14,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77999939] [2022-12-11 19:07:14,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77999939] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:07:14,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:07:14,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-11 19:07:14,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947579526] [2022-12-11 19:07:14,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:07:14,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 19:07:14,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:07:14,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 19:07:14,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-12-11 19:07:14,766 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 92 [2022-12-11 19:07:14,767 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 103 transitions, 545 flow. Second operand has 16 states, 16 states have (on average 63.4375) internal successors, (1015), 16 states have internal predecessors, (1015), 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) [2022-12-11 19:07:14,767 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:07:14,767 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 92 [2022-12-11 19:07:14,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:07:15,290 INFO L130 PetriNetUnfolder]: 86/383 cut-off events. [2022-12-11 19:07:15,291 INFO L131 PetriNetUnfolder]: For 2243/3068 co-relation queries the response was YES. [2022-12-11 19:07:15,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1646 conditions, 383 events. 86/383 cut-off events. For 2243/3068 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1911 event pairs, 17 based on Foata normal form. 26/391 useless extension candidates. Maximal degree in co-relation 1566. Up to 99 conditions per place. [2022-12-11 19:07:15,294 INFO L137 encePairwiseOnDemand]: 79/92 looper letters, 33 selfloop transitions, 10 changer transitions 38/134 dead transitions. [2022-12-11 19:07:15,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 134 transitions, 1054 flow [2022-12-11 19:07:15,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:07:15,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:07:15,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 862 transitions. [2022-12-11 19:07:15,296 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7207357859531772 [2022-12-11 19:07:15,296 INFO L175 Difference]: Start difference. First operand has 130 places, 103 transitions, 545 flow. Second operand 13 states and 862 transitions. [2022-12-11 19:07:15,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 134 transitions, 1054 flow [2022-12-11 19:07:15,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 134 transitions, 954 flow, removed 34 selfloop flow, removed 8 redundant places. [2022-12-11 19:07:15,304 INFO L231 Difference]: Finished difference. Result has 133 places, 93 transitions, 414 flow [2022-12-11 19:07:15,305 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=414, PETRI_PLACES=133, PETRI_TRANSITIONS=93} [2022-12-11 19:07:15,305 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 38 predicate places. [2022-12-11 19:07:15,306 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 93 transitions, 414 flow [2022-12-11 19:07:15,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 63.4375) internal successors, (1015), 16 states have internal predecessors, (1015), 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) [2022-12-11 19:07:15,307 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:07:15,307 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:07:15,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-11 19:07:15,307 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:07:15,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:07:15,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1144301898, now seen corresponding path program 5 times [2022-12-11 19:07:15,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:07:15,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314244842] [2022-12-11 19:07:15,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:07:15,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:07:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:07:16,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:07:16,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:07:16,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314244842] [2022-12-11 19:07:16,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314244842] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:07:16,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:07:16,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-11 19:07:16,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451046724] [2022-12-11 19:07:16,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:07:16,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-11 19:07:16,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:07:16,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-11 19:07:16,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-12-11 19:07:16,156 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 92 [2022-12-11 19:07:16,157 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 93 transitions, 414 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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) [2022-12-11 19:07:16,157 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:07:16,157 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 92 [2022-12-11 19:07:16,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:07:16,626 INFO L130 PetriNetUnfolder]: 67/303 cut-off events. [2022-12-11 19:07:16,626 INFO L131 PetriNetUnfolder]: For 1455/1516 co-relation queries the response was YES. [2022-12-11 19:07:16,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1259 conditions, 303 events. 67/303 cut-off events. For 1455/1516 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1254 event pairs, 17 based on Foata normal form. 11/305 useless extension candidates. Maximal degree in co-relation 1233. Up to 91 conditions per place. [2022-12-11 19:07:16,628 INFO L137 encePairwiseOnDemand]: 76/92 looper letters, 32 selfloop transitions, 11 changer transitions 31/126 dead transitions. [2022-12-11 19:07:16,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 126 transitions, 942 flow [2022-12-11 19:07:16,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-11 19:07:16,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-11 19:07:16,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1101 transitions. [2022-12-11 19:07:16,630 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7039641943734015 [2022-12-11 19:07:16,630 INFO L175 Difference]: Start difference. First operand has 133 places, 93 transitions, 414 flow. Second operand 17 states and 1101 transitions. [2022-12-11 19:07:16,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 126 transitions, 942 flow [2022-12-11 19:07:16,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 126 transitions, 881 flow, removed 16 selfloop flow, removed 13 redundant places. [2022-12-11 19:07:16,636 INFO L231 Difference]: Finished difference. Result has 138 places, 93 transitions, 435 flow [2022-12-11 19:07:16,637 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=435, PETRI_PLACES=138, PETRI_TRANSITIONS=93} [2022-12-11 19:07:16,637 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 43 predicate places. [2022-12-11 19:07:16,638 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 93 transitions, 435 flow [2022-12-11 19:07:16,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 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) [2022-12-11 19:07:16,640 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:07:16,640 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:07:16,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-11 19:07:16,640 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:07:16,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:07:16,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1887874386, now seen corresponding path program 6 times [2022-12-11 19:07:16,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:07:16,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547950020] [2022-12-11 19:07:16,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:07:16,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:07:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:07:17,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:07:17,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:07:17,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547950020] [2022-12-11 19:07:17,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547950020] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:07:17,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:07:17,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-11 19:07:17,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970393288] [2022-12-11 19:07:17,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:07:17,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 19:07:17,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:07:17,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 19:07:17,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-12-11 19:07:17,876 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 92 [2022-12-11 19:07:17,877 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 93 transitions, 435 flow. Second operand has 16 states, 16 states have (on average 60.625) internal successors, (970), 16 states have internal predecessors, (970), 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) [2022-12-11 19:07:17,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:07:17,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 92 [2022-12-11 19:07:17,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:07:18,483 INFO L130 PetriNetUnfolder]: 45/231 cut-off events. [2022-12-11 19:07:18,484 INFO L131 PetriNetUnfolder]: For 1878/2035 co-relation queries the response was YES. [2022-12-11 19:07:18,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1115 conditions, 231 events. 45/231 cut-off events. For 1878/2035 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 819 event pairs, 12 based on Foata normal form. 13/236 useless extension candidates. Maximal degree in co-relation 1084. Up to 52 conditions per place. [2022-12-11 19:07:18,485 INFO L137 encePairwiseOnDemand]: 80/92 looper letters, 24 selfloop transitions, 6 changer transitions 33/112 dead transitions. [2022-12-11 19:07:18,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 112 transitions, 851 flow [2022-12-11 19:07:18,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:07:18,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:07:18,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 820 transitions. [2022-12-11 19:07:18,487 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.68561872909699 [2022-12-11 19:07:18,487 INFO L175 Difference]: Start difference. First operand has 138 places, 93 transitions, 435 flow. Second operand 13 states and 820 transitions. [2022-12-11 19:07:18,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 112 transitions, 851 flow [2022-12-11 19:07:18,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 112 transitions, 770 flow, removed 34 selfloop flow, removed 13 redundant places. [2022-12-11 19:07:18,494 INFO L231 Difference]: Finished difference. Result has 132 places, 79 transitions, 283 flow [2022-12-11 19:07:18,494 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=283, PETRI_PLACES=132, PETRI_TRANSITIONS=79} [2022-12-11 19:07:18,495 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 37 predicate places. [2022-12-11 19:07:18,495 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 79 transitions, 283 flow [2022-12-11 19:07:18,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 60.625) internal successors, (970), 16 states have internal predecessors, (970), 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) [2022-12-11 19:07:18,496 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:07:18,496 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:07:18,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-11 19:07:18,496 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:07:18,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:07:18,497 INFO L85 PathProgramCache]: Analyzing trace with hash 370239558, now seen corresponding path program 1 times [2022-12-11 19:07:18,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:07:18,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857564645] [2022-12-11 19:07:18,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:07:18,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:07:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:07:19,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:07:19,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:07:19,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857564645] [2022-12-11 19:07:19,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857564645] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:07:19,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:07:19,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-11 19:07:19,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393928595] [2022-12-11 19:07:19,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:07:19,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-11 19:07:19,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:07:19,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-11 19:07:19,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-12-11 19:07:19,279 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 92 [2022-12-11 19:07:19,280 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 79 transitions, 283 flow. Second operand has 13 states, 13 states have (on average 63.84615384615385) internal successors, (830), 13 states have internal predecessors, (830), 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) [2022-12-11 19:07:19,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:07:19,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 92 [2022-12-11 19:07:19,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:07:19,492 INFO L130 PetriNetUnfolder]: 7/89 cut-off events. [2022-12-11 19:07:19,493 INFO L131 PetriNetUnfolder]: For 219/228 co-relation queries the response was YES. [2022-12-11 19:07:19,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 89 events. 7/89 cut-off events. For 219/228 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 2 based on Foata normal form. 3/90 useless extension candidates. Maximal degree in co-relation 240. Up to 13 conditions per place. [2022-12-11 19:07:19,493 INFO L137 encePairwiseOnDemand]: 83/92 looper letters, 0 selfloop transitions, 0 changer transitions 80/80 dead transitions. [2022-12-11 19:07:19,493 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 80 transitions, 373 flow [2022-12-11 19:07:19,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 19:07:19,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 19:07:19,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 648 transitions. [2022-12-11 19:07:19,495 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7043478260869566 [2022-12-11 19:07:19,495 INFO L175 Difference]: Start difference. First operand has 132 places, 79 transitions, 283 flow. Second operand 10 states and 648 transitions. [2022-12-11 19:07:19,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 80 transitions, 373 flow [2022-12-11 19:07:19,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 80 transitions, 298 flow, removed 21 selfloop flow, removed 24 redundant places. [2022-12-11 19:07:19,497 INFO L231 Difference]: Finished difference. Result has 108 places, 0 transitions, 0 flow [2022-12-11 19:07:19,497 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=108, PETRI_TRANSITIONS=0} [2022-12-11 19:07:19,498 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 13 predicate places. [2022-12-11 19:07:19,498 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 0 transitions, 0 flow [2022-12-11 19:07:19,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 63.84615384615385) internal successors, (830), 13 states have internal predecessors, (830), 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) [2022-12-11 19:07:19,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-11 19:07:19,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-11 19:07:19,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-11 19:07:19,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-11 19:07:19,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-11 19:07:19,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-11 19:07:19,503 INFO L445 BasicCegarLoop]: Path program histogram: [6, 4, 1, 1, 1, 1] [2022-12-11 19:07:19,507 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 19:07:19,507 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 19:07:19,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 07:07:19 BasicIcfg [2022-12-11 19:07:19,511 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 19:07:19,512 INFO L158 Benchmark]: Toolchain (without parser) took 21459.58ms. Allocated memory was 194.0MB in the beginning and 434.1MB in the end (delta: 240.1MB). Free memory was 155.2MB in the beginning and 381.3MB in the end (delta: -226.1MB). Peak memory consumption was 14.5MB. Max. memory is 8.0GB. [2022-12-11 19:07:19,512 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 194.0MB. Free memory was 170.6MB in the beginning and 170.6MB in the end (delta: 63.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 19:07:19,512 INFO L158 Benchmark]: CACSL2BoogieTranslator took 672.37ms. Allocated memory is still 194.0MB. Free memory was 154.7MB in the beginning and 126.4MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-12-11 19:07:19,512 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.05ms. Allocated memory is still 194.0MB. Free memory was 126.4MB in the beginning and 123.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 19:07:19,513 INFO L158 Benchmark]: Boogie Preprocessor took 55.64ms. Allocated memory is still 194.0MB. Free memory was 123.8MB in the beginning and 121.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 19:07:19,513 INFO L158 Benchmark]: RCFGBuilder took 720.01ms. Allocated memory is still 194.0MB. Free memory was 121.7MB in the beginning and 75.5MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. [2022-12-11 19:07:19,513 INFO L158 Benchmark]: TraceAbstraction took 19941.83ms. Allocated memory was 194.0MB in the beginning and 434.1MB in the end (delta: 240.1MB). Free memory was 74.5MB in the beginning and 381.3MB in the end (delta: -306.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 19:07:19,514 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 194.0MB. Free memory was 170.6MB in the beginning and 170.6MB in the end (delta: 63.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 672.37ms. Allocated memory is still 194.0MB. Free memory was 154.7MB in the beginning and 126.4MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.05ms. Allocated memory is still 194.0MB. Free memory was 126.4MB in the beginning and 123.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 55.64ms. Allocated memory is still 194.0MB. Free memory was 123.8MB in the beginning and 121.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 720.01ms. Allocated memory is still 194.0MB. Free memory was 121.7MB in the beginning and 75.5MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. * TraceAbstraction took 19941.83ms. Allocated memory was 194.0MB in the beginning and 434.1MB in the end (delta: 240.1MB). Free memory was 74.5MB in the beginning and 381.3MB in the end (delta: -306.9MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 5 procedures, 113 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19.8s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 736 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 736 mSDsluCounter, 1159 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 973 mSDsCounter, 320 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2667 IncrementalHoareTripleChecker+Invalid, 2987 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 320 mSolverCounterUnsat, 186 mSDtfsCounter, 2667 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 247 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=545occurred in iteration=10, InterpolantAutomatonStates: 168, 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, 0.5s SatisfiabilityAnalysisTime, 12.3s InterpolantComputationTime, 927 NumberOfCodeBlocks, 927 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 913 ConstructedInterpolants, 0 QuantifiedInterpolants, 8315 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-11 19:07:19,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...