/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:37:30,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:37:30,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:37:30,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:37:30,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:37:30,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:37:30,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:37:30,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:37:30,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:37:30,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:37:30,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:37:30,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:37:30,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:37:30,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:37:30,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:37:30,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:37:30,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:37:30,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:37:30,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:37:30,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:37:30,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:37:30,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:37:30,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:37:30,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:37:30,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:37:30,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:37:30,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:37:30,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:37:30,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:37:30,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:37:30,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:37:30,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:37:30,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:37:30,937 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:37:30,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:37:30,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:37:30,939 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:37:30,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:37:30,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:37:30,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:37:30,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:37:30,941 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 16:37:30,974 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:37:30,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:37:30,975 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:37:30,975 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:37:30,976 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:37:30,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:37:30,977 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:37:30,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:37:30,977 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:37:30,977 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:37:30,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:37:30,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:37:30,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:37:30,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:37:30,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:37:30,979 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:37:30,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:37:30,979 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:37:30,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:37:30,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:37:30,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:37:30,979 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:37:30,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:37:30,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:37:30,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:37:30,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:37:30,980 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:37:30,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:37:30,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:37:30,981 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:37:30,981 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:37:30,981 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:37:31,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:37:31,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:37:31,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:37:31,291 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:37:31,296 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:37:31,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:37:32,483 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:37:32,717 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:37:32,718 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:37:32,728 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07e1ba8fa/4a656a9e7c7045fe9fd57973143e9f6a/FLAGec4176cd9 [2022-12-06 16:37:32,742 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07e1ba8fa/4a656a9e7c7045fe9fd57973143e9f6a [2022-12-06 16:37:32,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:37:32,745 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:37:32,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:37:32,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:37:32,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:37:32,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:37:32" (1/1) ... [2022-12-06 16:37:32,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cb5624c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:32, skipping insertion in model container [2022-12-06 16:37:32,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:37:32" (1/1) ... [2022-12-06 16:37:32,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:37:32,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:37:32,976 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/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-06 16:37:33,148 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,155 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,155 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,156 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,159 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,166 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,168 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,169 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,169 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,170 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,171 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:37:33,183 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:37:33,195 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/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-06 16:37:33,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,224 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,224 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,224 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,224 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,224 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:33,242 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:33,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:37:33,288 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:37:33,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:33 WrapperNode [2022-12-06 16:37:33,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:37:33,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:37:33,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:37:33,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:37:33,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:33" (1/1) ... [2022-12-06 16:37:33,324 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:33" (1/1) ... [2022-12-06 16:37:33,346 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2022-12-06 16:37:33,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:37:33,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:37:33,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:37:33,348 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:37:33,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:33" (1/1) ... [2022-12-06 16:37:33,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:33" (1/1) ... [2022-12-06 16:37:33,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:33" (1/1) ... [2022-12-06 16:37:33,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:33" (1/1) ... [2022-12-06 16:37:33,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:33" (1/1) ... [2022-12-06 16:37:33,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:33" (1/1) ... [2022-12-06 16:37:33,381 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:33" (1/1) ... [2022-12-06 16:37:33,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:33" (1/1) ... [2022-12-06 16:37:33,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:37:33,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:37:33,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:37:33,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:37:33,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:33" (1/1) ... [2022-12-06 16:37:33,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:37:33,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:37:33,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 16:37:33,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 16:37:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:37:33,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 16:37:33,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:37:33,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:37:33,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:37:33,478 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 16:37:33,478 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 16:37:33,478 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 16:37:33,478 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 16:37:33,478 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-06 16:37:33,479 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-06 16:37:33,479 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-06 16:37:33,479 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-06 16:37:33,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:37:33,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 16:37:33,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:37:33,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:37:33,481 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:37:33,669 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:37:33,671 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:37:33,867 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:37:33,878 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:37:33,878 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:37:33,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:37:33 BoogieIcfgContainer [2022-12-06 16:37:33,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:37:33,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:37:33,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:37:33,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:37:33,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:37:32" (1/3) ... [2022-12-06 16:37:33,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e00caa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:37:33, skipping insertion in model container [2022-12-06 16:37:33,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:33" (2/3) ... [2022-12-06 16:37:33,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e00caa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:37:33, skipping insertion in model container [2022-12-06 16:37:33,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:37:33" (3/3) ... [2022-12-06 16:37:33,888 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:37:33,907 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:37:33,908 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:37:33,908 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:37:33,990 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 16:37:34,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 98 transitions, 216 flow [2022-12-06 16:37:34,091 INFO L130 PetriNetUnfolder]: 2/94 cut-off events. [2022-12-06 16:37:34,091 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:37:34,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2022-12-06 16:37:34,096 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 98 transitions, 216 flow [2022-12-06 16:37:34,100 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 80 transitions, 172 flow [2022-12-06 16:37:34,113 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:37:34,119 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;@5598f95f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:37:34,120 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-06 16:37:34,152 INFO L130 PetriNetUnfolder]: 1/79 cut-off events. [2022-12-06 16:37:34,152 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:37:34,152 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:34,153 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:34,154 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:37:34,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:34,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1486258359, now seen corresponding path program 1 times [2022-12-06 16:37:34,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:34,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900852546] [2022-12-06 16:37:34,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:34,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:34,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:37:34,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:34,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900852546] [2022-12-06 16:37:34,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900852546] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:34,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:34,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:37:34,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901208552] [2022-12-06 16:37:34,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:34,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:37:34,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:34,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:37:34,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:37:34,978 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 98 [2022-12-06 16:37:34,982 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 80 transitions, 172 flow. Second operand has 7 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:37:34,982 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:34,982 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 98 [2022-12-06 16:37:34,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:35,508 INFO L130 PetriNetUnfolder]: 872/1996 cut-off events. [2022-12-06 16:37:35,509 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-12-06 16:37:35,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3420 conditions, 1996 events. 872/1996 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 13447 event pairs, 55 based on Foata normal form. 77/2013 useless extension candidates. Maximal degree in co-relation 3385. Up to 434 conditions per place. [2022-12-06 16:37:35,531 INFO L137 encePairwiseOnDemand]: 85/98 looper letters, 27 selfloop transitions, 8 changer transitions 56/150 dead transitions. [2022-12-06 16:37:35,531 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 150 transitions, 500 flow [2022-12-06 16:37:35,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:37:35,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:37:35,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1059 transitions. [2022-12-06 16:37:35,579 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8312401883830455 [2022-12-06 16:37:35,584 INFO L294 CegarLoopForPetriNet]: 92 programPoint places, 12 predicate places. [2022-12-06 16:37:35,584 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 150 transitions, 500 flow [2022-12-06 16:37:35,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:37:35,585 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:35,585 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:35,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:37:35,586 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:37:35,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:35,587 INFO L85 PathProgramCache]: Analyzing trace with hash 312540168, now seen corresponding path program 1 times [2022-12-06 16:37:35,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:35,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501833519] [2022-12-06 16:37:35,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:35,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:35,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:37:35,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:35,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501833519] [2022-12-06 16:37:35,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501833519] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:35,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:35,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:37:35,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622842162] [2022-12-06 16:37:35,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:35,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:37:35,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:35,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:37:35,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:37:35,893 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2022-12-06 16:37:35,894 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 150 transitions, 500 flow. Second operand has 7 states, 7 states have (on average 80.85714285714286) internal successors, (566), 7 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:37:35,895 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:35,895 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2022-12-06 16:37:35,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:36,417 INFO L130 PetriNetUnfolder]: 1167/2980 cut-off events. [2022-12-06 16:37:36,417 INFO L131 PetriNetUnfolder]: For 447/993 co-relation queries the response was YES. [2022-12-06 16:37:36,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6132 conditions, 2980 events. 1167/2980 cut-off events. For 447/993 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 24484 event pairs, 51 based on Foata normal form. 39/2948 useless extension candidates. Maximal degree in co-relation 6092. Up to 555 conditions per place. [2022-12-06 16:37:36,434 INFO L137 encePairwiseOnDemand]: 89/98 looper letters, 25 selfloop transitions, 5 changer transitions 176/275 dead transitions. [2022-12-06 16:37:36,434 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 275 transitions, 1385 flow [2022-12-06 16:37:36,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:37:36,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:37:36,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1088 transitions. [2022-12-06 16:37:36,437 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8540031397174255 [2022-12-06 16:37:36,438 INFO L294 CegarLoopForPetriNet]: 92 programPoint places, 24 predicate places. [2022-12-06 16:37:36,438 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 275 transitions, 1385 flow [2022-12-06 16:37:36,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.85714285714286) internal successors, (566), 7 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:37:36,439 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:36,439 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:36,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:37:36,439 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:37:36,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:36,440 INFO L85 PathProgramCache]: Analyzing trace with hash 2099021513, now seen corresponding path program 1 times [2022-12-06 16:37:36,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:36,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417529533] [2022-12-06 16:37:36,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:36,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:36,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:37:36,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:36,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417529533] [2022-12-06 16:37:36,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417529533] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:36,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:36,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:37:36,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001695873] [2022-12-06 16:37:36,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:36,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:37:36,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:36,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:37:36,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:37:36,711 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 98 [2022-12-06 16:37:36,712 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 275 transitions, 1385 flow. Second operand has 7 states, 7 states have (on average 76.28571428571429) internal successors, (534), 7 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:37:36,712 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:36,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 98 [2022-12-06 16:37:36,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:37,336 INFO L130 PetriNetUnfolder]: 1721/4043 cut-off events. [2022-12-06 16:37:37,336 INFO L131 PetriNetUnfolder]: For 1003/3257 co-relation queries the response was YES. [2022-12-06 16:37:37,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11618 conditions, 4043 events. 1721/4043 cut-off events. For 1003/3257 co-relation queries the response was YES. Maximal size of possible extension queue 381. Compared 34517 event pairs, 24 based on Foata normal form. 77/4064 useless extension candidates. Maximal degree in co-relation 11571. Up to 725 conditions per place. [2022-12-06 16:37:37,360 INFO L137 encePairwiseOnDemand]: 87/98 looper letters, 45 selfloop transitions, 13 changer transitions 465/582 dead transitions. [2022-12-06 16:37:37,360 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 582 transitions, 4182 flow [2022-12-06 16:37:37,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:37:37,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:37:37,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1060 transitions. [2022-12-06 16:37:37,363 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8320251177394035 [2022-12-06 16:37:37,364 INFO L294 CegarLoopForPetriNet]: 92 programPoint places, 36 predicate places. [2022-12-06 16:37:37,365 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 582 transitions, 4182 flow [2022-12-06 16:37:37,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.28571428571429) internal successors, (534), 7 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:37:37,365 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:37,365 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:37,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:37:37,366 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:37:37,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:37,367 INFO L85 PathProgramCache]: Analyzing trace with hash 778977241, now seen corresponding path program 1 times [2022-12-06 16:37:37,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:37,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292507606] [2022-12-06 16:37:37,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:37,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:37,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:37:37,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:37,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292507606] [2022-12-06 16:37:37,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292507606] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:37,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:37,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:37:37,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955975771] [2022-12-06 16:37:37,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:37,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:37:37,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:37,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:37:37,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:37:37,668 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 98 [2022-12-06 16:37:37,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 582 transitions, 4182 flow. Second operand has 8 states, 8 states have (on average 76.125) internal successors, (609), 8 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:37:37,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:37,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 98 [2022-12-06 16:37:37,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:38,612 INFO L130 PetriNetUnfolder]: 2195/5587 cut-off events. [2022-12-06 16:37:38,613 INFO L131 PetriNetUnfolder]: For 2115/11443 co-relation queries the response was YES. [2022-12-06 16:37:38,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19652 conditions, 5587 events. 2195/5587 cut-off events. For 2115/11443 co-relation queries the response was YES. Maximal size of possible extension queue 608. Compared 54347 event pairs, 18 based on Foata normal form. 234/5764 useless extension candidates. Maximal degree in co-relation 19598. Up to 1034 conditions per place. [2022-12-06 16:37:38,701 INFO L137 encePairwiseOnDemand]: 86/98 looper letters, 34 selfloop transitions, 16 changer transitions 1177/1286 dead transitions. [2022-12-06 16:37:38,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 1286 transitions, 12052 flow [2022-12-06 16:37:38,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 16:37:38,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 16:37:38,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1384 transitions. [2022-12-06 16:37:38,705 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8307322929171669 [2022-12-06 16:37:38,706 INFO L294 CegarLoopForPetriNet]: 92 programPoint places, 52 predicate places. [2022-12-06 16:37:38,707 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 1286 transitions, 12052 flow [2022-12-06 16:37:38,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.125) internal successors, (609), 8 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:37:38,707 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:38,708 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:38,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:37:38,708 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:37:38,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:38,708 INFO L85 PathProgramCache]: Analyzing trace with hash 764430545, now seen corresponding path program 1 times [2022-12-06 16:37:38,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:38,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505371783] [2022-12-06 16:37:38,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:38,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:38,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:38,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:37:38,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:38,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505371783] [2022-12-06 16:37:38,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505371783] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:38,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:38,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:37:38,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658213802] [2022-12-06 16:37:38,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:38,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:37:38,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:38,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:37:38,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:37:38,940 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 98 [2022-12-06 16:37:38,941 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 1286 transitions, 12052 flow. Second operand has 7 states, 7 states have (on average 76.57142857142857) internal successors, (536), 7 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:37:38,941 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:38,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 98 [2022-12-06 16:37:38,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:40,392 INFO L130 PetriNetUnfolder]: 2604/7666 cut-off events. [2022-12-06 16:37:40,392 INFO L131 PetriNetUnfolder]: For 4240/28128 co-relation queries the response was YES. [2022-12-06 16:37:40,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30478 conditions, 7666 events. 2604/7666 cut-off events. For 4240/28128 co-relation queries the response was YES. Maximal size of possible extension queue 910. Compared 86999 event pairs, 0 based on Foata normal form. 342/7969 useless extension candidates. Maximal degree in co-relation 30417. Up to 1363 conditions per place. [2022-12-06 16:37:40,434 INFO L137 encePairwiseOnDemand]: 87/98 looper letters, 45 selfloop transitions, 14 changer transitions 1814/1932 dead transitions. [2022-12-06 16:37:40,434 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 1932 transitions, 22030 flow [2022-12-06 16:37:40,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:37:40,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:37:40,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1062 transitions. [2022-12-06 16:37:40,438 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8335949764521193 [2022-12-06 16:37:40,440 INFO L294 CegarLoopForPetriNet]: 92 programPoint places, 64 predicate places. [2022-12-06 16:37:40,441 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 1932 transitions, 22030 flow [2022-12-06 16:37:40,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.57142857142857) internal successors, (536), 7 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:37:40,441 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:40,442 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:40,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 16:37:40,442 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:37:40,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:40,443 INFO L85 PathProgramCache]: Analyzing trace with hash 508777158, now seen corresponding path program 1 times [2022-12-06 16:37:40,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:40,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685621050] [2022-12-06 16:37:40,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:40,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:40,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:37:40,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:40,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685621050] [2022-12-06 16:37:40,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685621050] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:40,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:40,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:37:40,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559233245] [2022-12-06 16:37:40,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:40,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:37:40,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:40,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:37:40,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:37:40,681 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 98 [2022-12-06 16:37:40,682 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 1932 transitions, 22030 flow. Second operand has 7 states, 7 states have (on average 76.57142857142857) internal successors, (536), 7 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:37:40,682 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:40,682 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 98 [2022-12-06 16:37:40,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:42,479 INFO L130 PetriNetUnfolder]: 2718/8309 cut-off events. [2022-12-06 16:37:42,479 INFO L131 PetriNetUnfolder]: For 7165/50478 co-relation queries the response was YES. [2022-12-06 16:37:42,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38690 conditions, 8309 events. 2718/8309 cut-off events. For 7165/50478 co-relation queries the response was YES. Maximal size of possible extension queue 1032. Compared 98295 event pairs, 0 based on Foata normal form. 601/8850 useless extension candidates. Maximal degree in co-relation 38622. Up to 1570 conditions per place. [2022-12-06 16:37:42,518 INFO L137 encePairwiseOnDemand]: 87/98 looper letters, 42 selfloop transitions, 12 changer transitions 2186/2299 dead transitions. [2022-12-06 16:37:42,518 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 2299 transitions, 30721 flow [2022-12-06 16:37:42,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:37:42,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:37:42,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1064 transitions. [2022-12-06 16:37:42,522 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8351648351648352 [2022-12-06 16:37:42,522 INFO L294 CegarLoopForPetriNet]: 92 programPoint places, 76 predicate places. [2022-12-06 16:37:42,522 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 2299 transitions, 30721 flow [2022-12-06 16:37:42,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.57142857142857) internal successors, (536), 7 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:37:42,523 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:42,523 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:42,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 16:37:42,524 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:37:42,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:42,524 INFO L85 PathProgramCache]: Analyzing trace with hash -848256085, now seen corresponding path program 1 times [2022-12-06 16:37:42,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:42,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111455495] [2022-12-06 16:37:42,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:42,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:42,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:37:42,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:42,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111455495] [2022-12-06 16:37:42,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111455495] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:42,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:42,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:37:42,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250925677] [2022-12-06 16:37:42,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:42,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:37:42,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:42,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:37:42,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:37:42,753 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2022-12-06 16:37:42,753 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 2299 transitions, 30721 flow. Second operand has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:37:42,753 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:42,753 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2022-12-06 16:37:42,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:49,703 INFO L130 PetriNetUnfolder]: 17331/39532 cut-off events. [2022-12-06 16:37:49,703 INFO L131 PetriNetUnfolder]: For 29890/49963 co-relation queries the response was YES. [2022-12-06 16:37:49,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130393 conditions, 39532 events. 17331/39532 cut-off events. For 29890/49963 co-relation queries the response was YES. Maximal size of possible extension queue 2864. Compared 498287 event pairs, 1094 based on Foata normal form. 562/37185 useless extension candidates. Maximal degree in co-relation 130321. Up to 11256 conditions per place. [2022-12-06 16:37:49,979 INFO L137 encePairwiseOnDemand]: 87/98 looper letters, 45 selfloop transitions, 20 changer transitions 1521/2074 dead transitions. [2022-12-06 16:37:49,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 2074 transitions, 27531 flow [2022-12-06 16:37:49,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 16:37:49,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 16:37:49,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 848 transitions. [2022-12-06 16:37:49,982 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8653061224489796 [2022-12-06 16:37:49,983 INFO L294 CegarLoopForPetriNet]: 92 programPoint places, 85 predicate places. [2022-12-06 16:37:49,983 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 2074 transitions, 27531 flow [2022-12-06 16:37:49,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:37:49,983 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:49,984 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:49,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 16:37:49,984 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:37:49,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:49,985 INFO L85 PathProgramCache]: Analyzing trace with hash -522819437, now seen corresponding path program 1 times [2022-12-06 16:37:49,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:49,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964722568] [2022-12-06 16:37:49,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:49,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:50,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:37:50,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:50,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964722568] [2022-12-06 16:37:50,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964722568] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:50,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:50,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:37:50,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611801017] [2022-12-06 16:37:50,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:50,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:37:50,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:50,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:37:50,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:37:50,331 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2022-12-06 16:37:50,331 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 2074 transitions, 27531 flow. Second operand has 7 states, 7 states have (on average 80.71428571428571) internal successors, (565), 7 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:37:50,332 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:50,332 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2022-12-06 16:37:50,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:56,238 INFO L130 PetriNetUnfolder]: 14065/30768 cut-off events. [2022-12-06 16:37:56,239 INFO L131 PetriNetUnfolder]: For 26911/44906 co-relation queries the response was YES. [2022-12-06 16:37:56,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103596 conditions, 30768 events. 14065/30768 cut-off events. For 26911/44906 co-relation queries the response was YES. Maximal size of possible extension queue 3157. Compared 364685 event pairs, 161 based on Foata normal form. 1476/30320 useless extension candidates. Maximal degree in co-relation 103520. Up to 10297 conditions per place. [2022-12-06 16:37:56,374 INFO L137 encePairwiseOnDemand]: 87/98 looper letters, 70 selfloop transitions, 54 changer transitions 1074/1400 dead transitions. [2022-12-06 16:37:56,374 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 1400 transitions, 18365 flow [2022-12-06 16:37:56,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:37:56,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:37:56,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1104 transitions. [2022-12-06 16:37:56,379 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8665620094191523 [2022-12-06 16:37:56,382 INFO L294 CegarLoopForPetriNet]: 92 programPoint places, 97 predicate places. [2022-12-06 16:37:56,382 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 1400 transitions, 18365 flow [2022-12-06 16:37:56,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.71428571428571) internal successors, (565), 7 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:37:56,383 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:56,383 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:56,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 16:37:56,383 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:37:56,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:56,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1265273994, now seen corresponding path program 1 times [2022-12-06 16:37:56,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:56,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711862208] [2022-12-06 16:37:56,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:56,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:56,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:37:56,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:56,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711862208] [2022-12-06 16:37:56,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711862208] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:56,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:56,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:37:56,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520213562] [2022-12-06 16:37:56,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:56,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:37:56,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:56,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:37:56,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:37:56,561 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2022-12-06 16:37:56,562 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 1400 transitions, 18365 flow. Second operand has 8 states, 8 states have (on average 80.625) internal successors, (645), 8 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:37:56,562 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:56,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2022-12-06 16:37:56,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:38:00,349 INFO L130 PetriNetUnfolder]: 12347/26508 cut-off events. [2022-12-06 16:38:00,349 INFO L131 PetriNetUnfolder]: For 37546/71177 co-relation queries the response was YES. [2022-12-06 16:38:00,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96769 conditions, 26508 events. 12347/26508 cut-off events. For 37546/71177 co-relation queries the response was YES. Maximal size of possible extension queue 3273. Compared 310984 event pairs, 0 based on Foata normal form. 2084/27022 useless extension candidates. Maximal degree in co-relation 96689. Up to 9559 conditions per place. [2022-12-06 16:38:00,478 INFO L137 encePairwiseOnDemand]: 87/98 looper letters, 45 selfloop transitions, 106 changer transitions 609/858 dead transitions. [2022-12-06 16:38:00,478 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 858 transitions, 11072 flow [2022-12-06 16:38:00,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 16:38:00,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 16:38:00,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1359 transitions. [2022-12-06 16:38:00,481 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8667091836734694 [2022-12-06 16:38:00,482 INFO L294 CegarLoopForPetriNet]: 92 programPoint places, 106 predicate places. [2022-12-06 16:38:00,482 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 858 transitions, 11072 flow [2022-12-06 16:38:00,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 80.625) internal successors, (645), 8 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:00,482 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:38:00,482 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:38:00,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 16:38:00,483 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:38:00,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:38:00,483 INFO L85 PathProgramCache]: Analyzing trace with hash -865941435, now seen corresponding path program 1 times [2022-12-06 16:38:00,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:38:00,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339778366] [2022-12-06 16:38:00,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:38:00,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:38:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:38:00,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:38:00,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:38:00,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339778366] [2022-12-06 16:38:00,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339778366] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:38:00,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:38:00,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 16:38:00,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440975162] [2022-12-06 16:38:00,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:38:00,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 16:38:00,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:38:00,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 16:38:00,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-06 16:38:00,797 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2022-12-06 16:38:00,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 858 transitions, 11072 flow. Second operand has 9 states, 9 states have (on average 80.55555555555556) internal successors, (725), 9 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:00,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:38:00,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2022-12-06 16:38:00,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:38:03,980 INFO L130 PetriNetUnfolder]: 12283/25619 cut-off events. [2022-12-06 16:38:03,980 INFO L131 PetriNetUnfolder]: For 44226/84430 co-relation queries the response was YES. [2022-12-06 16:38:04,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110189 conditions, 25619 events. 12283/25619 cut-off events. For 44226/84430 co-relation queries the response was YES. Maximal size of possible extension queue 3322. Compared 300603 event pairs, 0 based on Foata normal form. 2585/26565 useless extension candidates. Maximal degree in co-relation 110105. Up to 9532 conditions per place. [2022-12-06 16:38:04,079 INFO L137 encePairwiseOnDemand]: 87/98 looper letters, 0 selfloop transitions, 0 changer transitions 557/557 dead transitions. [2022-12-06 16:38:04,079 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 557 transitions, 7428 flow [2022-12-06 16:38:04,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-06 16:38:04,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-06 16:38:04,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1593 transitions. [2022-12-06 16:38:04,082 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.855531686358754 [2022-12-06 16:38:04,083 INFO L294 CegarLoopForPetriNet]: 92 programPoint places, 98 predicate places. [2022-12-06 16:38:04,083 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 557 transitions, 7428 flow [2022-12-06 16:38:04,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 80.55555555555556) internal successors, (725), 9 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:38:04,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-06 16:38:04,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2022-12-06 16:38:04,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-06 16:38:04,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-06 16:38:04,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-06 16:38:04,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-06 16:38:04,087 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:38:04,089 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:38:04,090 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:38:04,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:38:04 BasicIcfg [2022-12-06 16:38:04,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:38:04,094 INFO L158 Benchmark]: Toolchain (without parser) took 31348.72ms. Allocated memory was 206.6MB in the beginning and 4.5GB in the end (delta: 4.2GB). Free memory was 167.7MB in the beginning and 3.3GB in the end (delta: -3.1GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2022-12-06 16:38:04,094 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 206.6MB. Free memory was 183.5MB in the beginning and 183.4MB in the end (delta: 77.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:38:04,094 INFO L158 Benchmark]: CACSL2BoogieTranslator took 543.72ms. Allocated memory is still 206.6MB. Free memory was 167.7MB in the beginning and 143.4MB in the end (delta: 24.2MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-06 16:38:04,095 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.14ms. Allocated memory is still 206.6MB. Free memory was 143.4MB in the beginning and 141.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:38:04,095 INFO L158 Benchmark]: Boogie Preprocessor took 36.89ms. Allocated memory is still 206.6MB. Free memory was 141.5MB in the beginning and 139.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 16:38:04,095 INFO L158 Benchmark]: RCFGBuilder took 495.76ms. Allocated memory is still 206.6MB. Free memory was 139.9MB in the beginning and 125.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-06 16:38:04,096 INFO L158 Benchmark]: TraceAbstraction took 30210.46ms. Allocated memory was 206.6MB in the beginning and 4.5GB in the end (delta: 4.2GB). Free memory was 124.2MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2022-12-06 16:38:04,097 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 206.6MB. Free memory was 183.5MB in the beginning and 183.4MB in the end (delta: 77.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 543.72ms. Allocated memory is still 206.6MB. Free memory was 167.7MB in the beginning and 143.4MB in the end (delta: 24.2MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.14ms. Allocated memory is still 206.6MB. Free memory was 143.4MB in the beginning and 141.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.89ms. Allocated memory is still 206.6MB. Free memory was 141.5MB in the beginning and 139.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 495.76ms. Allocated memory is still 206.6MB. Free memory was 139.9MB in the beginning and 125.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 30210.46ms. Allocated memory was 206.6MB in the beginning and 4.5GB in the end (delta: 4.2GB). Free memory was 124.2MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 127 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: 30.1s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 26.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 844 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 844 mSDsluCounter, 866 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 653 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 984 IncrementalHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 213 mSDtfsCounter, 984 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30721occurred in iteration=6, InterpolantAutomatonStates: 140, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 624 NumberOfCodeBlocks, 624 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 614 ConstructedInterpolants, 0 QuantifiedInterpolants, 2796 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 16:38:04,118 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...