/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 --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 23:41:18,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 23:41:18,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 23:41:18,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 23:41:18,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 23:41:18,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 23:41:18,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 23:41:18,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 23:41:18,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 23:41:18,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 23:41:18,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 23:41:18,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 23:41:18,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 23:41:18,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 23:41:18,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 23:41:18,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 23:41:18,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 23:41:18,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 23:41:18,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 23:41:18,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 23:41:18,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 23:41:18,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 23:41:18,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 23:41:18,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 23:41:18,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 23:41:18,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 23:41:18,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 23:41:18,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 23:41:18,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 23:41:18,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 23:41:18,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 23:41:18,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 23:41:18,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 23:41:18,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 23:41:18,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 23:41:18,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 23:41:18,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 23:41:18,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 23:41:18,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 23:41:18,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 23:41:18,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 23:41:18,176 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-11 23:41:18,194 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 23:41:18,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 23:41:18,196 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 23:41:18,196 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 23:41:18,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 23:41:18,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 23:41:18,197 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 23:41:18,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 23:41:18,197 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 23:41:18,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 23:41:18,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 23:41:18,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 23:41:18,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 23:41:18,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 23:41:18,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 23:41:18,198 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 23:41:18,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 23:41:18,198 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 23:41:18,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 23:41:18,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 23:41:18,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 23:41:18,199 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 23:41:18,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 23:41:18,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:41:18,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 23:41:18,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 23:41:18,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 23:41:18,199 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 23:41:18,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 23:41:18,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 23:41:18,200 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 23:41:18,200 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-11 23:41:18,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 23:41:18,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 23:41:18,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 23:41:18,492 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 23:41:18,493 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 23:41:18,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.i [2022-12-11 23:41:19,439 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 23:41:19,635 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 23:41:19,635 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.i [2022-12-11 23:41:19,643 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/accff5cae/39e2787dd63048739f56a8d617091a4d/FLAG21956ec59 [2022-12-11 23:41:19,656 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/accff5cae/39e2787dd63048739f56a8d617091a4d [2022-12-11 23:41:19,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 23:41:19,659 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 23:41:19,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 23:41:19,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 23:41:19,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 23:41:19,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:41:19" (1/1) ... [2022-12-11 23:41:19,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dacb6bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:41:19, skipping insertion in model container [2022-12-11 23:41:19,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:41:19" (1/1) ... [2022-12-11 23:41:19,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 23:41:19,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 23:41:19,799 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/safe002_tso.i[945,958] [2022-12-11 23:41:19,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:19,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:19,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:19,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:19,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:19,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:19,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:19,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:19,948 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:19,948 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:19,948 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:19,948 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:19,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:19,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:19,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:19,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:19,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:19,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:19,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:19,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:19,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:19,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:19,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:19,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:19,958 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:19,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:19,960 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:19,960 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:19,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:19,963 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:19,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:41:19,970 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 23:41:19,981 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/safe002_tso.i[945,958] [2022-12-11 23:41:20,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:20,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:20,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:20,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:20,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:20,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:20,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:20,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:20,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:20,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:20,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:20,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:20,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:20,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:20,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:20,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:20,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:20,008 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:20,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:20,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:20,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:20,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:20,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:20,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:20,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:20,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:20,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:20,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:20,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:41:20,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:41:20,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:41:20,055 INFO L208 MainTranslator]: Completed translation [2022-12-11 23:41:20,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:41:20 WrapperNode [2022-12-11 23:41:20,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 23:41:20,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 23:41:20,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 23:41:20,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 23:41:20,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:41:20" (1/1) ... [2022-12-11 23:41:20,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:41:20" (1/1) ... [2022-12-11 23:41:20,106 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-11 23:41:20,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 23:41:20,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 23:41:20,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 23:41:20,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 23:41:20,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:41:20" (1/1) ... [2022-12-11 23:41:20,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:41:20" (1/1) ... [2022-12-11 23:41:20,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:41:20" (1/1) ... [2022-12-11 23:41:20,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:41:20" (1/1) ... [2022-12-11 23:41:20,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:41:20" (1/1) ... [2022-12-11 23:41:20,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:41:20" (1/1) ... [2022-12-11 23:41:20,136 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:41:20" (1/1) ... [2022-12-11 23:41:20,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:41:20" (1/1) ... [2022-12-11 23:41:20,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 23:41:20,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 23:41:20,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 23:41:20,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 23:41:20,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:41:20" (1/1) ... [2022-12-11 23:41:20,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:41:20,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 23:41:20,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-11 23:41:20,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-11 23:41:20,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 23:41:20,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 23:41:20,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 23:41:20,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 23:41:20,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 23:41:20,206 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-11 23:41:20,206 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-11 23:41:20,207 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-11 23:41:20,207 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-11 23:41:20,207 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-11 23:41:20,207 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-11 23:41:20,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 23:41:20,207 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 23:41:20,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 23:41:20,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 23:41:20,208 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 23:41:20,304 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 23:41:20,306 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 23:41:20,432 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 23:41:20,437 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 23:41:20,438 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 23:41:20,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:41:20 BoogieIcfgContainer [2022-12-11 23:41:20,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 23:41:20,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 23:41:20,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 23:41:20,443 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 23:41:20,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 11:41:19" (1/3) ... [2022-12-11 23:41:20,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67bce955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:41:20, skipping insertion in model container [2022-12-11 23:41:20,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:41:20" (2/3) ... [2022-12-11 23:41:20,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67bce955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:41:20, skipping insertion in model container [2022-12-11 23:41:20,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:41:20" (3/3) ... [2022-12-11 23:41:20,445 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_tso.i [2022-12-11 23:41:20,475 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 23:41:20,475 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 23:41:20,477 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 23:41:20,551 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 23:41:20,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2022-12-11 23:41:20,630 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-12-11 23:41:20,631 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 23:41:20,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-11 23:41:20,637 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2022-12-11 23:41:20,648 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2022-12-11 23:41:20,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 23:41:20,659 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;@15b3a42b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 23:41:20,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 23:41:20,675 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2022-12-11 23:41:20,676 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 23:41:20,676 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:41:20,676 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:41:20,677 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:41:20,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:41:20,681 INFO L85 PathProgramCache]: Analyzing trace with hash 2225101, now seen corresponding path program 1 times [2022-12-11 23:41:20,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:41:20,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346557342] [2022-12-11 23:41:20,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:41:20,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:41:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:41:21,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:41:21,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:41:21,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346557342] [2022-12-11 23:41:21,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346557342] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:41:21,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:41:21,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 23:41:21,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871691118] [2022-12-11 23:41:21,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:41:21,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 23:41:21,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:41:21,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 23:41:21,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 23:41:21,267 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-11 23:41:21,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 70 transitions, 149 flow. Second operand has 6 states, 6 states have (on average 65.16666666666667) internal successors, (391), 6 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:21,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:41:21,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-11 23:41:21,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:41:21,634 INFO L130 PetriNetUnfolder]: 371/1041 cut-off events. [2022-12-11 23:41:21,635 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-12-11 23:41:21,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1707 conditions, 1041 events. 371/1041 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 6999 event pairs, 57 based on Foata normal form. 33/1041 useless extension candidates. Maximal degree in co-relation 1672. Up to 217 conditions per place. [2022-12-11 23:41:21,645 INFO L137 encePairwiseOnDemand]: 72/85 looper letters, 21 selfloop transitions, 8 changer transitions 37/117 dead transitions. [2022-12-11 23:41:21,645 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 117 transitions, 381 flow [2022-12-11 23:41:21,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 23:41:21,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 23:41:21,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 637 transitions. [2022-12-11 23:41:21,661 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8326797385620915 [2022-12-11 23:41:21,665 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 8 predicate places. [2022-12-11 23:41:21,665 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 117 transitions, 381 flow [2022-12-11 23:41:21,669 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 80 transitions, 233 flow [2022-12-11 23:41:21,670 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 80 transitions, 233 flow [2022-12-11 23:41:21,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.16666666666667) internal successors, (391), 6 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:21,671 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:41:21,671 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:41:21,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 23:41:21,672 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:41:21,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:41:21,673 INFO L85 PathProgramCache]: Analyzing trace with hash -167567346, now seen corresponding path program 1 times [2022-12-11 23:41:21,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:41:21,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368674346] [2022-12-11 23:41:21,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:41:21,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:41:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:41:21,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:41:21,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:41:21,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368674346] [2022-12-11 23:41:21,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368674346] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:41:21,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:41:21,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:41:21,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445866766] [2022-12-11 23:41:21,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:41:21,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:41:21,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:41:21,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:41:21,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:41:21,881 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-11 23:41:21,882 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 80 transitions, 233 flow. Second operand has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:21,882 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:41:21,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-11 23:41:21,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:41:22,113 INFO L130 PetriNetUnfolder]: 219/723 cut-off events. [2022-12-11 23:41:22,113 INFO L131 PetriNetUnfolder]: For 62/204 co-relation queries the response was YES. [2022-12-11 23:41:22,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1571 conditions, 723 events. 219/723 cut-off events. For 62/204 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4451 event pairs, 3 based on Foata normal form. 24/728 useless extension candidates. Maximal degree in co-relation 1529. Up to 257 conditions per place. [2022-12-11 23:41:22,118 INFO L137 encePairwiseOnDemand]: 73/85 looper letters, 25 selfloop transitions, 9 changer transitions 46/131 dead transitions. [2022-12-11 23:41:22,118 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 131 transitions, 597 flow [2022-12-11 23:41:22,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:41:22,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:41:22,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 888 transitions. [2022-12-11 23:41:22,120 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8036199095022625 [2022-12-11 23:41:22,120 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 14 predicate places. [2022-12-11 23:41:22,121 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 131 transitions, 597 flow [2022-12-11 23:41:22,123 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 85 transitions, 321 flow [2022-12-11 23:41:22,123 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 85 transitions, 321 flow [2022-12-11 23:41:22,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:22,124 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:41:22,124 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:41:22,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 23:41:22,124 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:41:22,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:41:22,126 INFO L85 PathProgramCache]: Analyzing trace with hash 700747746, now seen corresponding path program 1 times [2022-12-11 23:41:22,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:41:22,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582917438] [2022-12-11 23:41:22,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:41:22,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:41:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:41:22,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:41:22,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:41:22,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582917438] [2022-12-11 23:41:22,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582917438] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:41:22,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:41:22,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:41:22,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070153147] [2022-12-11 23:41:22,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:41:22,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:41:22,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:41:22,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:41:22,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:41:22,312 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-11 23:41:22,312 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 85 transitions, 321 flow. Second operand has 7 states, 7 states have (on average 65.14285714285714) internal successors, (456), 7 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:22,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:41:22,313 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-11 23:41:22,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:41:22,486 INFO L130 PetriNetUnfolder]: 135/482 cut-off events. [2022-12-11 23:41:22,486 INFO L131 PetriNetUnfolder]: For 143/433 co-relation queries the response was YES. [2022-12-11 23:41:22,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1335 conditions, 482 events. 135/482 cut-off events. For 143/433 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2562 event pairs, 3 based on Foata normal form. 16/482 useless extension candidates. Maximal degree in co-relation 1286. Up to 186 conditions per place. [2022-12-11 23:41:22,489 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 29 selfloop transitions, 10 changer transitions 31/121 dead transitions. [2022-12-11 23:41:22,489 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 121 transitions, 680 flow [2022-12-11 23:41:22,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:41:22,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:41:22,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 879 transitions. [2022-12-11 23:41:22,491 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7954751131221719 [2022-12-11 23:41:22,492 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 17 predicate places. [2022-12-11 23:41:22,492 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 121 transitions, 680 flow [2022-12-11 23:41:22,499 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 90 transitions, 432 flow [2022-12-11 23:41:22,500 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 90 transitions, 432 flow [2022-12-11 23:41:22,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.14285714285714) internal successors, (456), 7 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:22,500 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:41:22,500 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:41:22,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 23:41:22,501 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:41:22,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:41:22,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1092527119, now seen corresponding path program 1 times [2022-12-11 23:41:22,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:41:22,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535482933] [2022-12-11 23:41:22,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:41:22,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:41:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:41:22,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:41:22,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:41:22,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535482933] [2022-12-11 23:41:22,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535482933] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:41:22,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:41:22,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 23:41:22,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085413425] [2022-12-11 23:41:22,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:41:22,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 23:41:22,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:41:22,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 23:41:22,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-11 23:41:22,727 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-11 23:41:22,728 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 90 transitions, 432 flow. Second operand has 8 states, 8 states have (on average 64.875) internal successors, (519), 8 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:22,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:41:22,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-11 23:41:22,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:41:22,871 INFO L130 PetriNetUnfolder]: 112/409 cut-off events. [2022-12-11 23:41:22,871 INFO L131 PetriNetUnfolder]: For 266/857 co-relation queries the response was YES. [2022-12-11 23:41:22,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1365 conditions, 409 events. 112/409 cut-off events. For 266/857 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2054 event pairs, 1 based on Foata normal form. 16/409 useless extension candidates. Maximal degree in co-relation 1309. Up to 172 conditions per place. [2022-12-11 23:41:22,873 INFO L137 encePairwiseOnDemand]: 72/85 looper letters, 22 selfloop transitions, 13 changer transitions 55/141 dead transitions. [2022-12-11 23:41:22,873 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 141 transitions, 1026 flow [2022-12-11 23:41:22,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-11 23:41:22,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-11 23:41:22,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 751 transitions. [2022-12-11 23:41:22,875 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8032085561497326 [2022-12-11 23:41:22,876 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 18 predicate places. [2022-12-11 23:41:22,876 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 141 transitions, 1026 flow [2022-12-11 23:41:22,878 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 86 transitions, 476 flow [2022-12-11 23:41:22,878 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 86 transitions, 476 flow [2022-12-11 23:41:22,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 64.875) internal successors, (519), 8 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:22,878 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:41:22,878 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:41:22,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 23:41:22,879 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:41:22,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:41:22,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1917851254, now seen corresponding path program 1 times [2022-12-11 23:41:22,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:41:22,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047368236] [2022-12-11 23:41:22,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:41:22,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:41:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:41:22,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:41:22,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:41:22,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047368236] [2022-12-11 23:41:22,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047368236] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:41:22,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:41:22,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:41:22,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998330416] [2022-12-11 23:41:22,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:41:22,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:41:22,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:41:22,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:41:22,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:41:22,983 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-11 23:41:22,983 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 86 transitions, 476 flow. Second operand has 7 states, 7 states have (on average 65.28571428571429) internal successors, (457), 7 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:22,984 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:41:22,984 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-11 23:41:22,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:41:23,079 INFO L130 PetriNetUnfolder]: 37/222 cut-off events. [2022-12-11 23:41:23,079 INFO L131 PetriNetUnfolder]: For 341/694 co-relation queries the response was YES. [2022-12-11 23:41:23,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 730 conditions, 222 events. 37/222 cut-off events. For 341/694 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 804 event pairs, 0 based on Foata normal form. 20/234 useless extension candidates. Maximal degree in co-relation 667. Up to 75 conditions per place. [2022-12-11 23:41:23,080 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 27 selfloop transitions, 9 changer transitions 16/103 dead transitions. [2022-12-11 23:41:23,080 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 103 transitions, 750 flow [2022-12-11 23:41:23,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 23:41:23,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 23:41:23,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 673 transitions. [2022-12-11 23:41:23,082 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7917647058823529 [2022-12-11 23:41:23,083 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 21 predicate places. [2022-12-11 23:41:23,083 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 103 transitions, 750 flow [2022-12-11 23:41:23,084 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 87 transitions, 558 flow [2022-12-11 23:41:23,084 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 87 transitions, 558 flow [2022-12-11 23:41:23,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.28571428571429) internal successors, (457), 7 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:23,084 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:41:23,084 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:41:23,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 23:41:23,085 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:41:23,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:41:23,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1312158308, now seen corresponding path program 1 times [2022-12-11 23:41:23,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:41:23,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209905245] [2022-12-11 23:41:23,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:41:23,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:41:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:41:23,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:41:23,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:41:23,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209905245] [2022-12-11 23:41:23,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209905245] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:41:23,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:41:23,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:41:23,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982243761] [2022-12-11 23:41:23,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:41:23,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:41:23,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:41:23,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:41:23,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:41:23,191 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 85 [2022-12-11 23:41:23,191 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 87 transitions, 558 flow. Second operand has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:23,191 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:41:23,191 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 85 [2022-12-11 23:41:23,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:41:23,257 INFO L130 PetriNetUnfolder]: 27/236 cut-off events. [2022-12-11 23:41:23,257 INFO L131 PetriNetUnfolder]: For 616/832 co-relation queries the response was YES. [2022-12-11 23:41:23,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 236 events. 27/236 cut-off events. For 616/832 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 988 event pairs, 3 based on Foata normal form. 13/236 useless extension candidates. Maximal degree in co-relation 685. Up to 63 conditions per place. [2022-12-11 23:41:23,258 INFO L137 encePairwiseOnDemand]: 77/85 looper letters, 16 selfloop transitions, 6 changer transitions 16/95 dead transitions. [2022-12-11 23:41:23,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 95 transitions, 729 flow [2022-12-11 23:41:23,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 23:41:23,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 23:41:23,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 487 transitions. [2022-12-11 23:41:23,260 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8184873949579832 [2022-12-11 23:41:23,260 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 21 predicate places. [2022-12-11 23:41:23,261 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 95 transitions, 729 flow [2022-12-11 23:41:23,261 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 79 transitions, 497 flow [2022-12-11 23:41:23,262 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 79 transitions, 497 flow [2022-12-11 23:41:23,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:23,262 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:41:23,262 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:41:23,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 23:41:23,262 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:41:23,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:41:23,263 INFO L85 PathProgramCache]: Analyzing trace with hash 573419014, now seen corresponding path program 2 times [2022-12-11 23:41:23,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:41:23,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45513196] [2022-12-11 23:41:23,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:41:23,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:41:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:41:23,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:41:23,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:41:23,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45513196] [2022-12-11 23:41:23,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45513196] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:41:23,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:41:23,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:41:23,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202448693] [2022-12-11 23:41:23,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:41:23,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:41:23,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:41:23,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:41:23,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:41:23,359 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 85 [2022-12-11 23:41:23,360 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 79 transitions, 497 flow. Second operand has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:23,360 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:41:23,360 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 85 [2022-12-11 23:41:23,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:41:23,422 INFO L130 PetriNetUnfolder]: 16/138 cut-off events. [2022-12-11 23:41:23,422 INFO L131 PetriNetUnfolder]: For 400/637 co-relation queries the response was YES. [2022-12-11 23:41:23,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 138 events. 16/138 cut-off events. For 400/637 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 353 event pairs, 5 based on Foata normal form. 10/143 useless extension candidates. Maximal degree in co-relation 460. Up to 46 conditions per place. [2022-12-11 23:41:23,423 INFO L137 encePairwiseOnDemand]: 78/85 looper letters, 14 selfloop transitions, 2 changer transitions 13/83 dead transitions. [2022-12-11 23:41:23,423 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 83 transitions, 605 flow [2022-12-11 23:41:23,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-11 23:41:23,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-11 23:41:23,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 553 transitions. [2022-12-11 23:41:23,425 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8132352941176471 [2022-12-11 23:41:23,425 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 25 predicate places. [2022-12-11 23:41:23,425 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 83 transitions, 605 flow [2022-12-11 23:41:23,426 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 70 transitions, 406 flow [2022-12-11 23:41:23,426 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 70 transitions, 406 flow [2022-12-11 23:41:23,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:23,426 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:41:23,426 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:41:23,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 23:41:23,427 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:41:23,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:41:23,427 INFO L85 PathProgramCache]: Analyzing trace with hash 249720710, now seen corresponding path program 3 times [2022-12-11 23:41:23,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:41:23,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781872848] [2022-12-11 23:41:23,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:41:23,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:41:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:41:23,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:41:23,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:41:23,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781872848] [2022-12-11 23:41:23,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781872848] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:41:23,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:41:23,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 23:41:23,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869456438] [2022-12-11 23:41:23,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:41:23,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 23:41:23,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:41:23,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 23:41:23,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 23:41:23,562 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 23:41:23,563 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 70 transitions, 406 flow. Second operand has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:23,563 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:41:23,563 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 23:41:23,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:41:23,657 INFO L130 PetriNetUnfolder]: 133/416 cut-off events. [2022-12-11 23:41:23,657 INFO L131 PetriNetUnfolder]: For 555/613 co-relation queries the response was YES. [2022-12-11 23:41:23,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1131 conditions, 416 events. 133/416 cut-off events. For 555/613 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2142 event pairs, 34 based on Foata normal form. 1/400 useless extension candidates. Maximal degree in co-relation 1054. Up to 85 conditions per place. [2022-12-11 23:41:23,659 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 18 selfloop transitions, 8 changer transitions 20/101 dead transitions. [2022-12-11 23:41:23,659 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 101 transitions, 577 flow [2022-12-11 23:41:23,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 23:41:23,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 23:41:23,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 727 transitions. [2022-12-11 23:41:23,661 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8552941176470589 [2022-12-11 23:41:23,663 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 28 predicate places. [2022-12-11 23:41:23,663 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 101 transitions, 577 flow [2022-12-11 23:41:23,665 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 81 transitions, 497 flow [2022-12-11 23:41:23,665 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 81 transitions, 497 flow [2022-12-11 23:41:23,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:23,666 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:41:23,666 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:41:23,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-11 23:41:23,666 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:41:23,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:41:23,666 INFO L85 PathProgramCache]: Analyzing trace with hash 662966209, now seen corresponding path program 1 times [2022-12-11 23:41:23,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:41:23,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465964642] [2022-12-11 23:41:23,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:41:23,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:41:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:41:23,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:41:23,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:41:23,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465964642] [2022-12-11 23:41:23,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465964642] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:41:23,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:41:23,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:41:23,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832134271] [2022-12-11 23:41:23,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:41:23,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:41:23,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:41:23,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:41:23,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:41:23,783 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 23:41:23,783 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 81 transitions, 497 flow. Second operand has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:23,783 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:41:23,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 23:41:23,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:41:23,905 INFO L130 PetriNetUnfolder]: 65/278 cut-off events. [2022-12-11 23:41:23,905 INFO L131 PetriNetUnfolder]: For 485/569 co-relation queries the response was YES. [2022-12-11 23:41:23,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 899 conditions, 278 events. 65/278 cut-off events. For 485/569 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1187 event pairs, 5 based on Foata normal form. 19/292 useless extension candidates. Maximal degree in co-relation 818. Up to 97 conditions per place. [2022-12-11 23:41:23,906 INFO L137 encePairwiseOnDemand]: 76/85 looper letters, 15 selfloop transitions, 9 changer transitions 30/109 dead transitions. [2022-12-11 23:41:23,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 109 transitions, 717 flow [2022-12-11 23:41:23,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-11 23:41:23,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-11 23:41:23,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 865 transitions. [2022-12-11 23:41:23,909 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8480392156862745 [2022-12-11 23:41:23,910 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 36 predicate places. [2022-12-11 23:41:23,910 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 109 transitions, 717 flow [2022-12-11 23:41:23,911 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 79 transitions, 537 flow [2022-12-11 23:41:23,911 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 79 transitions, 537 flow [2022-12-11 23:41:23,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:23,911 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:41:23,912 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:41:23,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-11 23:41:23,912 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:41:23,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:41:23,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1429648110, now seen corresponding path program 1 times [2022-12-11 23:41:23,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:41:23,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082201999] [2022-12-11 23:41:23,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:41:23,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:41:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:41:24,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:41:24,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:41:24,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082201999] [2022-12-11 23:41:24,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082201999] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:41:24,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:41:24,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 23:41:24,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73570280] [2022-12-11 23:41:24,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:41:24,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 23:41:24,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:41:24,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 23:41:24,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-11 23:41:24,040 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 23:41:24,040 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 79 transitions, 537 flow. Second operand has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:24,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:41:24,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 23:41:24,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:41:24,134 INFO L130 PetriNetUnfolder]: 18/128 cut-off events. [2022-12-11 23:41:24,134 INFO L131 PetriNetUnfolder]: For 467/485 co-relation queries the response was YES. [2022-12-11 23:41:24,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 128 events. 18/128 cut-off events. For 467/485 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 260 event pairs, 0 based on Foata normal form. 11/139 useless extension candidates. Maximal degree in co-relation 390. Up to 33 conditions per place. [2022-12-11 23:41:24,135 INFO L137 encePairwiseOnDemand]: 76/85 looper letters, 9 selfloop transitions, 12 changer transitions 16/92 dead transitions. [2022-12-11 23:41:24,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 92 transitions, 689 flow [2022-12-11 23:41:24,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-11 23:41:24,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-11 23:41:24,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 783 transitions. [2022-12-11 23:41:24,138 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8374331550802139 [2022-12-11 23:41:24,139 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 37 predicate places. [2022-12-11 23:41:24,139 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 92 transitions, 689 flow [2022-12-11 23:41:24,140 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 76 transitions, 561 flow [2022-12-11 23:41:24,140 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 76 transitions, 561 flow [2022-12-11 23:41:24,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:24,140 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:41:24,140 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:41:24,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-11 23:41:24,140 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:41:24,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:41:24,141 INFO L85 PathProgramCache]: Analyzing trace with hash -654297073, now seen corresponding path program 1 times [2022-12-11 23:41:24,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:41:24,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187798920] [2022-12-11 23:41:24,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:41:24,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:41:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:41:24,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:41:24,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:41:24,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187798920] [2022-12-11 23:41:24,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187798920] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:41:24,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:41:24,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:41:24,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652261385] [2022-12-11 23:41:24,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:41:24,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:41:24,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:41:24,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:41:24,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:41:24,266 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 23:41:24,267 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 76 transitions, 561 flow. Second operand has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:24,267 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:41:24,267 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 23:41:24,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:41:24,318 INFO L130 PetriNetUnfolder]: 8/99 cut-off events. [2022-12-11 23:41:24,318 INFO L131 PetriNetUnfolder]: For 638/654 co-relation queries the response was YES. [2022-12-11 23:41:24,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 99 events. 8/99 cut-off events. For 638/654 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 140 event pairs, 0 based on Foata normal form. 3/102 useless extension candidates. Maximal degree in co-relation 298. Up to 17 conditions per place. [2022-12-11 23:41:24,319 INFO L137 encePairwiseOnDemand]: 79/85 looper letters, 0 selfloop transitions, 0 changer transitions 75/75 dead transitions. [2022-12-11 23:41:24,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 75 transitions, 598 flow [2022-12-11 23:41:24,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 23:41:24,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 23:41:24,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 490 transitions. [2022-12-11 23:41:24,320 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8235294117647058 [2022-12-11 23:41:24,320 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 37 predicate places. [2022-12-11 23:41:24,320 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 75 transitions, 598 flow [2022-12-11 23:41:24,320 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-11 23:41:24,320 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-11 23:41:24,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 23:41:24,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 23:41:24,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-11 23:41:24,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-11 23:41:24,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-11 23:41:24,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-11 23:41:24,324 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:41:24,326 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 23:41:24,326 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 23:41:24,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 11:41:24 BasicIcfg [2022-12-11 23:41:24,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 23:41:24,329 INFO L158 Benchmark]: Toolchain (without parser) took 4670.54ms. Allocated memory was 182.5MB in the beginning and 270.5MB in the end (delta: 88.1MB). Free memory was 158.0MB in the beginning and 131.4MB in the end (delta: 26.7MB). Peak memory consumption was 114.8MB. Max. memory is 8.0GB. [2022-12-11 23:41:24,329 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 182.5MB. Free memory was 160.5MB in the beginning and 160.4MB in the end (delta: 139.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 23:41:24,330 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.66ms. Allocated memory is still 182.5MB. Free memory was 157.5MB in the beginning and 134.6MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-11 23:41:24,330 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.39ms. Allocated memory is still 182.5MB. Free memory was 134.6MB in the beginning and 132.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 23:41:24,330 INFO L158 Benchmark]: Boogie Preprocessor took 30.57ms. Allocated memory is still 182.5MB. Free memory was 132.5MB in the beginning and 130.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-11 23:41:24,330 INFO L158 Benchmark]: RCFGBuilder took 300.91ms. Allocated memory is still 182.5MB. Free memory was 130.9MB in the beginning and 117.8MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-11 23:41:24,330 INFO L158 Benchmark]: TraceAbstraction took 3888.05ms. Allocated memory was 182.5MB in the beginning and 270.5MB in the end (delta: 88.1MB). Free memory was 116.7MB in the beginning and 131.4MB in the end (delta: -14.6MB). Peak memory consumption was 73.9MB. Max. memory is 8.0GB. [2022-12-11 23:41:24,331 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 182.5MB. Free memory was 160.5MB in the beginning and 160.4MB in the end (delta: 139.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 396.66ms. Allocated memory is still 182.5MB. Free memory was 157.5MB in the beginning and 134.6MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.39ms. Allocated memory is still 182.5MB. Free memory was 134.6MB in the beginning and 132.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.57ms. Allocated memory is still 182.5MB. Free memory was 132.5MB in the beginning and 130.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 300.91ms. Allocated memory is still 182.5MB. Free memory was 130.9MB in the beginning and 117.8MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3888.05ms. Allocated memory was 182.5MB in the beginning and 270.5MB in the end (delta: 88.1MB). Free memory was 116.7MB in the beginning and 131.4MB in the end (delta: -14.6MB). Peak memory consumption was 73.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.7s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 397 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 397 mSDsluCounter, 605 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 457 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 673 IncrementalHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 148 mSDtfsCounter, 673 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=561occurred in iteration=10, InterpolantAutomatonStates: 111, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 2831 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 621 NumberOfCodeBlocks, 621 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 610 ConstructedInterpolants, 0 QuantifiedInterpolants, 2678 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-11 23:41:24,346 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...