/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:36:07,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:36:07,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:36:07,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:36:07,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:36:07,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:36:07,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:36:07,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:36:07,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:36:07,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:36:07,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:36:07,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:36:07,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:36:07,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:36:07,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:36:07,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:36:07,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:36:07,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:36:07,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:36:07,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:36:07,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:36:07,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:36:07,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:36:07,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:36:07,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:36:07,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:36:07,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:36:07,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:36:07,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:36:07,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:36:07,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:36:07,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:36:07,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:36:07,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:36:07,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:36:07,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:36:07,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:36:07,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:36:07,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:36:07,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:36:07,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:36:07,987 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 16:36:08,010 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:36:08,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:36:08,012 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:36:08,012 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:36:08,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:36:08,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:36:08,013 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:36:08,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:36:08,013 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:36:08,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:36:08,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:36:08,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:36:08,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:36:08,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:36:08,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:36:08,014 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:36:08,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:36:08,014 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:36:08,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:36:08,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:36:08,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:36:08,015 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:36:08,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:36:08,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:36:08,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:36:08,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:36:08,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:36:08,015 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:36:08,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:36:08,016 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:36:08,016 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:36:08,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:36:08,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:36:08,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:36:08,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:36:08,298 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:36:08,298 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:36:08,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:36:09,395 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:36:09,649 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:36:09,649 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:36:09,671 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ca31af76/c831216b1f584812a8f2238605914d5f/FLAG5ff470663 [2022-12-06 16:36:09,686 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ca31af76/c831216b1f584812a8f2238605914d5f [2022-12-06 16:36:09,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:36:09,688 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:36:09,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:36:09,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:36:09,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:36:09,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:36:09" (1/1) ... [2022-12-06 16:36:09,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28d40391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:09, skipping insertion in model container [2022-12-06 16:36:09,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:36:09" (1/1) ... [2022-12-06 16:36:09,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:36:09,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:36:09,886 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-06 16:36:10,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,034 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:36:10,043 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:36:10,054 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-06 16:36:10,076 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,077 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,077 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,077 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,077 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,077 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,077 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,078 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,078 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,078 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,079 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,079 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,083 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,087 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,087 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,087 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:36:10,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:36:10,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:36:10,123 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:36:10,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:10 WrapperNode [2022-12-06 16:36:10,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:36:10,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:36:10,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:36:10,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:36:10,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:10" (1/1) ... [2022-12-06 16:36:10,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:10" (1/1) ... [2022-12-06 16:36:10,169 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-12-06 16:36:10,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:36:10,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:36:10,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:36:10,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:36:10,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:10" (1/1) ... [2022-12-06 16:36:10,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:10" (1/1) ... [2022-12-06 16:36:10,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:10" (1/1) ... [2022-12-06 16:36:10,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:10" (1/1) ... [2022-12-06 16:36:10,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:10" (1/1) ... [2022-12-06 16:36:10,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:10" (1/1) ... [2022-12-06 16:36:10,200 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:10" (1/1) ... [2022-12-06 16:36:10,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:10" (1/1) ... [2022-12-06 16:36:10,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:36:10,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:36:10,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:36:10,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:36:10,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:10" (1/1) ... [2022-12-06 16:36:10,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:36:10,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:36:10,249 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 16:36:10,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 16:36:10,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:36:10,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 16:36:10,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:36:10,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:36:10,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:36:10,300 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 16:36:10,301 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 16:36:10,301 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 16:36:10,301 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 16:36:10,301 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-06 16:36:10,301 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-06 16:36:10,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:36:10,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 16:36:10,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:36:10,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:36:10,303 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:36:10,447 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:36:10,448 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:36:10,597 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:36:10,601 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:36:10,601 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:36:10,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:36:10 BoogieIcfgContainer [2022-12-06 16:36:10,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:36:10,604 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:36:10,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:36:10,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:36:10,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:36:09" (1/3) ... [2022-12-06 16:36:10,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a74fd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:36:10, skipping insertion in model container [2022-12-06 16:36:10,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:10" (2/3) ... [2022-12-06 16:36:10,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a74fd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:36:10, skipping insertion in model container [2022-12-06 16:36:10,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:36:10" (3/3) ... [2022-12-06 16:36:10,609 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:36:10,620 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:36:10,620 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:36:10,620 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:36:10,683 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 16:36:10,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 83 transitions, 181 flow [2022-12-06 16:36:10,756 INFO L130 PetriNetUnfolder]: 2/80 cut-off events. [2022-12-06 16:36:10,756 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:36:10,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-12-06 16:36:10,759 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 83 transitions, 181 flow [2022-12-06 16:36:10,761 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 68 transitions, 145 flow [2022-12-06 16:36:10,767 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:36:10,772 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@780544d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:36:10,772 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 16:36:10,788 INFO L130 PetriNetUnfolder]: 1/67 cut-off events. [2022-12-06 16:36:10,789 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:36:10,789 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:36:10,789 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:36:10,790 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)] === [2022-12-06 16:36:10,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:36:10,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1374275782, now seen corresponding path program 1 times [2022-12-06 16:36:10,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:36:10,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848584465] [2022-12-06 16:36:10,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:36:10,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:36:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:36:11,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:36:11,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:36:11,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848584465] [2022-12-06 16:36:11,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848584465] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:36:11,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:36:11,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:36:11,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721780072] [2022-12-06 16:36:11,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:36:11,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:36:11,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:36:11,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:36:11,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:36:11,473 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 83 [2022-12-06 16:36:11,475 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 68 transitions, 145 flow. Second operand has 7 states, 7 states have (on average 64.71428571428571) internal successors, (453), 7 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:36:11,476 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:36:11,476 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 83 [2022-12-06 16:36:11,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:36:11,679 INFO L130 PetriNetUnfolder]: 163/484 cut-off events. [2022-12-06 16:36:11,679 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-06 16:36:11,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 815 conditions, 484 events. 163/484 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2588 event pairs, 18 based on Foata normal form. 18/484 useless extension candidates. Maximal degree in co-relation 782. Up to 107 conditions per place. [2022-12-06 16:36:11,683 INFO L137 encePairwiseOnDemand]: 72/83 looper letters, 20 selfloop transitions, 6 changer transitions 35/112 dead transitions. [2022-12-06 16:36:11,683 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 112 transitions, 361 flow [2022-12-06 16:36:11,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:36:11,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:36:11,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 886 transitions. [2022-12-06 16:36:11,694 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8211306765523633 [2022-12-06 16:36:11,697 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, 12 predicate places. [2022-12-06 16:36:11,697 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 112 transitions, 361 flow [2022-12-06 16:36:11,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.71428571428571) internal successors, (453), 7 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:36:11,697 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:36:11,697 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:36:11,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:36:11,698 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)] === [2022-12-06 16:36:11,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:36:11,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1955449031, now seen corresponding path program 1 times [2022-12-06 16:36:11,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:36:11,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640184593] [2022-12-06 16:36:11,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:36:11,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:36:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:36:11,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:36:11,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:36:11,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640184593] [2022-12-06 16:36:11,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640184593] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:36:11,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:36:11,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:36:11,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814917078] [2022-12-06 16:36:11,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:36:11,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:36:11,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:36:11,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:36:11,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:36:11,907 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 83 [2022-12-06 16:36:11,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 112 transitions, 361 flow. Second operand has 7 states, 7 states have (on average 63.0) internal successors, (441), 7 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:36:11,908 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:36:11,908 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 83 [2022-12-06 16:36:11,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:36:12,321 INFO L130 PetriNetUnfolder]: 538/1496 cut-off events. [2022-12-06 16:36:12,321 INFO L131 PetriNetUnfolder]: For 163/338 co-relation queries the response was YES. [2022-12-06 16:36:12,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3269 conditions, 1496 events. 538/1496 cut-off events. For 163/338 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 11158 event pairs, 10 based on Foata normal form. 44/1520 useless extension candidates. Maximal degree in co-relation 3229. Up to 248 conditions per place. [2022-12-06 16:36:12,327 INFO L137 encePairwiseOnDemand]: 72/83 looper letters, 44 selfloop transitions, 15 changer transitions 232/340 dead transitions. [2022-12-06 16:36:12,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 340 transitions, 1865 flow [2022-12-06 16:36:12,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 16:36:12,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 16:36:12,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1146 transitions. [2022-12-06 16:36:12,330 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.81218993621545 [2022-12-06 16:36:12,330 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, 28 predicate places. [2022-12-06 16:36:12,330 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 340 transitions, 1865 flow [2022-12-06 16:36:12,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.0) internal successors, (441), 7 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:36:12,331 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:36:12,331 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:36:12,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:36:12,331 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)] === [2022-12-06 16:36:12,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:36:12,332 INFO L85 PathProgramCache]: Analyzing trace with hash -897794522, now seen corresponding path program 1 times [2022-12-06 16:36:12,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:36:12,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241600962] [2022-12-06 16:36:12,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:36:12,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:36:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:36:12,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:36:12,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:36:12,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241600962] [2022-12-06 16:36:12,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241600962] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:36:12,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:36:12,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:36:12,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858844374] [2022-12-06 16:36:12,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:36:12,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:36:12,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:36:12,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:36:12,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:36:12,458 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 83 [2022-12-06 16:36:12,458 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 340 transitions, 1865 flow. Second operand has 8 states, 8 states have (on average 62.875) internal successors, (503), 8 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:36:12,458 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:36:12,458 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 83 [2022-12-06 16:36:12,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:36:12,723 INFO L130 PetriNetUnfolder]: 553/1520 cut-off events. [2022-12-06 16:36:12,724 INFO L131 PetriNetUnfolder]: For 397/942 co-relation queries the response was YES. [2022-12-06 16:36:12,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4450 conditions, 1520 events. 553/1520 cut-off events. For 397/942 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 11405 event pairs, 10 based on Foata normal form. 87/1589 useless extension candidates. Maximal degree in co-relation 4403. Up to 257 conditions per place. [2022-12-06 16:36:12,728 INFO L137 encePairwiseOnDemand]: 72/83 looper letters, 26 selfloop transitions, 7 changer transitions 326/408 dead transitions. [2022-12-06 16:36:12,728 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 408 transitions, 2985 flow [2022-12-06 16:36:12,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 16:36:12,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 16:36:12,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1119 transitions. [2022-12-06 16:36:12,730 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7930545712260808 [2022-12-06 16:36:12,731 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, 44 predicate places. [2022-12-06 16:36:12,731 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 408 transitions, 2985 flow [2022-12-06 16:36:12,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 62.875) internal successors, (503), 8 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:36:12,732 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:36:12,732 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:36:12,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:36:12,732 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)] === [2022-12-06 16:36:12,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:36:12,732 INFO L85 PathProgramCache]: Analyzing trace with hash 548898862, now seen corresponding path program 1 times [2022-12-06 16:36:12,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:36:12,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663775589] [2022-12-06 16:36:12,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:36:12,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:36:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:36:12,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:36:12,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:36:12,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663775589] [2022-12-06 16:36:12,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663775589] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:36:12,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:36:12,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:36:12,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824168858] [2022-12-06 16:36:12,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:36:12,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:36:12,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:36:12,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:36:12,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:36:12,879 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 83 [2022-12-06 16:36:12,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 408 transitions, 2985 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) [2022-12-06 16:36:12,880 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:36:12,880 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 83 [2022-12-06 16:36:12,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:36:13,121 INFO L130 PetriNetUnfolder]: 618/1889 cut-off events. [2022-12-06 16:36:13,122 INFO L131 PetriNetUnfolder]: For 969/1818 co-relation queries the response was YES. [2022-12-06 16:36:13,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6297 conditions, 1889 events. 618/1889 cut-off events. For 969/1818 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 16104 event pairs, 0 based on Foata normal form. 77/1955 useless extension candidates. Maximal degree in co-relation 6244. Up to 288 conditions per place. [2022-12-06 16:36:13,127 INFO L137 encePairwiseOnDemand]: 74/83 looper letters, 24 selfloop transitions, 9 changer transitions 586/670 dead transitions. [2022-12-06 16:36:13,127 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 670 transitions, 6299 flow [2022-12-06 16:36:13,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:36:13,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:36:13,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 891 transitions. [2022-12-06 16:36:13,129 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8257645968489342 [2022-12-06 16:36:13,129 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, 56 predicate places. [2022-12-06 16:36:13,129 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 670 transitions, 6299 flow [2022-12-06 16:36:13,130 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) [2022-12-06 16:36:13,130 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:36:13,130 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:36:13,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:36:13,130 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)] === [2022-12-06 16:36:13,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:36:13,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1716522309, now seen corresponding path program 1 times [2022-12-06 16:36:13,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:36:13,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869505100] [2022-12-06 16:36:13,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:36:13,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:36:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:36:13,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:36:13,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:36:13,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869505100] [2022-12-06 16:36:13,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869505100] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:36:13,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:36:13,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:36:13,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905039110] [2022-12-06 16:36:13,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:36:13,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:36:13,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:36:13,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:36:13,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:36:13,258 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 83 [2022-12-06 16:36:13,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 670 transitions, 6299 flow. Second operand has 7 states, 7 states have (on average 66.85714285714286) internal successors, (468), 7 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:36:13,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:36:13,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 83 [2022-12-06 16:36:13,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:36:13,549 INFO L130 PetriNetUnfolder]: 773/2484 cut-off events. [2022-12-06 16:36:13,549 INFO L131 PetriNetUnfolder]: For 2223/5858 co-relation queries the response was YES. [2022-12-06 16:36:13,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9468 conditions, 2484 events. 773/2484 cut-off events. For 2223/5858 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 23811 event pairs, 0 based on Foata normal form. 121/2586 useless extension candidates. Maximal degree in co-relation 9410. Up to 348 conditions per place. [2022-12-06 16:36:13,560 INFO L137 encePairwiseOnDemand]: 74/83 looper letters, 14 selfloop transitions, 4 changer transitions 822/892 dead transitions. [2022-12-06 16:36:13,560 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 892 transitions, 10097 flow [2022-12-06 16:36:13,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:36:13,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:36:13,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 902 transitions. [2022-12-06 16:36:13,562 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8359592215013901 [2022-12-06 16:36:13,564 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, 68 predicate places. [2022-12-06 16:36:13,564 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 892 transitions, 10097 flow [2022-12-06 16:36:13,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 66.85714285714286) internal successors, (468), 7 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:36:13,564 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:36:13,564 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:36:13,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 16:36:13,565 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)] === [2022-12-06 16:36:13,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:36:13,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1093959233, now seen corresponding path program 2 times [2022-12-06 16:36:13,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:36:13,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920668757] [2022-12-06 16:36:13,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:36:13,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:36:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:36:13,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:36:13,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:36:13,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920668757] [2022-12-06 16:36:13,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920668757] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:36:13,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:36:13,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:36:13,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332613713] [2022-12-06 16:36:13,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:36:13,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:36:13,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:36:13,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:36:13,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:36:13,755 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 83 [2022-12-06 16:36:13,755 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 892 transitions, 10097 flow. Second operand has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:36:13,755 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:36:13,755 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 83 [2022-12-06 16:36:13,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:36:14,332 INFO L130 PetriNetUnfolder]: 1735/4730 cut-off events. [2022-12-06 16:36:14,333 INFO L131 PetriNetUnfolder]: For 3976/5821 co-relation queries the response was YES. [2022-12-06 16:36:14,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14151 conditions, 4730 events. 1735/4730 cut-off events. For 3976/5821 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 47766 event pairs, 51 based on Foata normal form. 49/4506 useless extension candidates. Maximal degree in co-relation 14089. Up to 1125 conditions per place. [2022-12-06 16:36:14,347 INFO L137 encePairwiseOnDemand]: 73/83 looper letters, 12 selfloop transitions, 5 changer transitions 509/610 dead transitions. [2022-12-06 16:36:14,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 610 transitions, 6621 flow [2022-12-06 16:36:14,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 16:36:14,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 16:36:14,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 708 transitions. [2022-12-06 16:36:14,348 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8530120481927711 [2022-12-06 16:36:14,351 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, 77 predicate places. [2022-12-06 16:36:14,351 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 610 transitions, 6621 flow [2022-12-06 16:36:14,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:36:14,351 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:36:14,351 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:36:14,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 16:36:14,352 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)] === [2022-12-06 16:36:14,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:36:14,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1880007972, now seen corresponding path program 1 times [2022-12-06 16:36:14,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:36:14,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426596844] [2022-12-06 16:36:14,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:36:14,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:36:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:36:14,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:36:14,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:36:14,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426596844] [2022-12-06 16:36:14,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426596844] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:36:14,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:36:14,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:36:14,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212144228] [2022-12-06 16:36:14,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:36:14,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:36:14,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:36:14,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:36:14,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:36:14,476 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 83 [2022-12-06 16:36:14,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 610 transitions, 6621 flow. Second operand has 7 states, 7 states have (on average 67.57142857142857) internal successors, (473), 7 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:36:14,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:36:14,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 83 [2022-12-06 16:36:14,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:36:14,868 INFO L130 PetriNetUnfolder]: 1225/3304 cut-off events. [2022-12-06 16:36:14,868 INFO L131 PetriNetUnfolder]: For 3702/5771 co-relation queries the response was YES. [2022-12-06 16:36:14,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9894 conditions, 3304 events. 1225/3304 cut-off events. For 3702/5771 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 32040 event pairs, 0 based on Foata normal form. 241/3317 useless extension candidates. Maximal degree in co-relation 9828. Up to 948 conditions per place. [2022-12-06 16:36:14,881 INFO L137 encePairwiseOnDemand]: 73/83 looper letters, 8 selfloop transitions, 7 changer transitions 291/363 dead transitions. [2022-12-06 16:36:14,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 363 transitions, 3574 flow [2022-12-06 16:36:14,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:36:14,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:36:14,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 921 transitions. [2022-12-06 16:36:14,883 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8535681186283596 [2022-12-06 16:36:14,883 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, 83 predicate places. [2022-12-06 16:36:14,883 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 363 transitions, 3574 flow [2022-12-06 16:36:14,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.57142857142857) internal successors, (473), 7 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:36:14,885 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:36:14,886 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:36:14,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 16:36:14,886 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)] === [2022-12-06 16:36:14,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:36:14,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1809244984, now seen corresponding path program 1 times [2022-12-06 16:36:14,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:36:14,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441872085] [2022-12-06 16:36:14,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:36:14,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:36:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:36:15,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:36:15,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:36:15,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441872085] [2022-12-06 16:36:15,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441872085] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:36:15,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:36:15,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:36:15,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445631305] [2022-12-06 16:36:15,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:36:15,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:36:15,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:36:15,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:36:15,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:36:15,014 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 83 [2022-12-06 16:36:15,015 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 363 transitions, 3574 flow. Second operand has 8 states, 8 states have (on average 67.5) internal successors, (540), 8 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:36:15,015 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:36:15,015 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 83 [2022-12-06 16:36:15,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:36:15,418 INFO L130 PetriNetUnfolder]: 1078/2881 cut-off events. [2022-12-06 16:36:15,418 INFO L131 PetriNetUnfolder]: For 4642/6686 co-relation queries the response was YES. [2022-12-06 16:36:15,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10057 conditions, 2881 events. 1078/2881 cut-off events. For 4642/6686 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 28334 event pairs, 0 based on Foata normal form. 241/2981 useless extension candidates. Maximal degree in co-relation 9987. Up to 836 conditions per place. [2022-12-06 16:36:15,428 INFO L137 encePairwiseOnDemand]: 73/83 looper letters, 0 selfloop transitions, 0 changer transitions 251/251 dead transitions. [2022-12-06 16:36:15,428 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 251 transitions, 2442 flow [2022-12-06 16:36:15,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 16:36:15,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 16:36:15,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1118 transitions. [2022-12-06 16:36:15,431 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8418674698795181 [2022-12-06 16:36:15,433 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, 69 predicate places. [2022-12-06 16:36:15,433 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 251 transitions, 2442 flow [2022-12-06 16:36:15,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 67.5) internal successors, (540), 8 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:36:15,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 16:36:15,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 16:36:15,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 16:36:15,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 16:36:15,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 16:36:15,437 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-12-06 16:36:15,443 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:36:15,443 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:36:15,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:36:15 BasicIcfg [2022-12-06 16:36:15,450 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:36:15,454 INFO L158 Benchmark]: Toolchain (without parser) took 5762.35ms. Allocated memory was 204.5MB in the beginning and 385.9MB in the end (delta: 181.4MB). Free memory was 179.5MB in the beginning and 218.9MB in the end (delta: -39.4MB). Peak memory consumption was 142.5MB. Max. memory is 8.0GB. [2022-12-06 16:36:15,454 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 204.5MB. Free memory was 180.8MB in the beginning and 180.7MB in the end (delta: 86.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:36:15,454 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.40ms. Allocated memory is still 204.5MB. Free memory was 179.0MB in the beginning and 156.5MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-06 16:36:15,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.48ms. Allocated memory is still 204.5MB. Free memory was 155.9MB in the beginning and 154.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:36:15,455 INFO L158 Benchmark]: Boogie Preprocessor took 33.32ms. Allocated memory is still 204.5MB. Free memory was 154.4MB in the beginning and 152.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 16:36:15,455 INFO L158 Benchmark]: RCFGBuilder took 399.72ms. Allocated memory is still 204.5MB. Free memory was 152.8MB in the beginning and 139.2MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 16:36:15,455 INFO L158 Benchmark]: TraceAbstraction took 4845.99ms. Allocated memory was 204.5MB in the beginning and 385.9MB in the end (delta: 181.4MB). Free memory was 138.6MB in the beginning and 218.9MB in the end (delta: -80.3MB). Peak memory consumption was 101.6MB. Max. memory is 8.0GB. [2022-12-06 16:36:15,456 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 204.5MB. Free memory was 180.8MB in the beginning and 180.7MB in the end (delta: 86.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 433.40ms. Allocated memory is still 204.5MB. Free memory was 179.0MB in the beginning and 156.5MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.48ms. Allocated memory is still 204.5MB. Free memory was 155.9MB in the beginning and 154.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.32ms. Allocated memory is still 204.5MB. Free memory was 154.4MB in the beginning and 152.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 399.72ms. Allocated memory is still 204.5MB. Free memory was 152.8MB in the beginning and 139.2MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4845.99ms. Allocated memory was 204.5MB in the beginning and 385.9MB in the end (delta: 181.4MB). Free memory was 138.6MB in the beginning and 218.9MB in the end (delta: -80.3MB). Peak memory consumption was 101.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 105 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.7s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 538 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 538 mSDsluCounter, 526 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 411 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 609 IncrementalHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 115 mSDtfsCounter, 609 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10097occurred in iteration=5, InterpolantAutomatonStates: 112, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 434 NumberOfCodeBlocks, 434 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 426 ConstructedInterpolants, 0 QuantifiedInterpolants, 1720 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 16:36:15,472 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...