/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 19:08:16,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 19:08:16,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 19:08:16,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 19:08:16,995 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 19:08:16,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 19:08:16,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 19:08:16,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 19:08:17,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 19:08:17,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 19:08:17,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 19:08:17,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 19:08:17,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 19:08:17,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 19:08:17,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 19:08:17,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 19:08:17,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 19:08:17,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 19:08:17,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 19:08:17,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 19:08:17,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 19:08:17,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 19:08:17,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 19:08:17,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 19:08:17,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 19:08:17,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 19:08:17,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 19:08:17,020 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 19:08:17,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 19:08:17,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 19:08:17,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 19:08:17,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 19:08:17,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 19:08:17,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 19:08:17,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 19:08:17,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 19:08:17,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 19:08:17,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 19:08:17,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 19:08:17,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 19:08:17,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 19:08:17,029 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-11 19:08:17,049 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 19:08:17,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 19:08:17,051 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 19:08:17,051 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 19:08:17,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 19:08:17,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 19:08:17,052 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 19:08:17,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 19:08:17,053 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 19:08:17,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 19:08:17,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 19:08:17,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 19:08:17,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 19:08:17,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 19:08:17,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 19:08:17,054 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 19:08:17,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 19:08:17,054 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 19:08:17,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 19:08:17,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 19:08:17,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 19:08:17,055 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 19:08:17,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 19:08:17,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:08:17,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 19:08:17,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 19:08:17,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 19:08:17,056 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 19:08:17,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 19:08:17,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 19:08:17,057 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 19:08:17,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-11 19:08:17,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 19:08:17,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 19:08:17,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 19:08:17,349 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 19:08:17,349 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 19:08:17,350 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.i [2022-12-11 19:08:18,564 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 19:08:18,795 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 19:08:18,796 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.i [2022-12-11 19:08:18,808 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff182896d/8a02c4eadb57449e82733e244f98a0b9/FLAGb5a7ba61b [2022-12-11 19:08:18,827 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff182896d/8a02c4eadb57449e82733e244f98a0b9 [2022-12-11 19:08:18,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 19:08:18,831 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 19:08:18,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 19:08:18,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 19:08:18,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 19:08:18,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:08:18" (1/1) ... [2022-12-11 19:08:18,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d02053a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:18, skipping insertion in model container [2022-12-11 19:08:18,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:08:18" (1/1) ... [2022-12-11 19:08:18,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 19:08:18,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 19:08:19,066 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/safe011_tso.i[945,958] [2022-12-11 19:08:19,224 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,242 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,242 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,244 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:08:19,255 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 19:08:19,267 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/safe011_tso.i[945,958] [2022-12-11 19:08:19,287 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,287 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,287 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:19,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:19,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:08:19,335 INFO L208 MainTranslator]: Completed translation [2022-12-11 19:08:19,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:19 WrapperNode [2022-12-11 19:08:19,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 19:08:19,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 19:08:19,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 19:08:19,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 19:08:19,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:19" (1/1) ... [2022-12-11 19:08:19,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:19" (1/1) ... [2022-12-11 19:08:19,393 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-12-11 19:08:19,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 19:08:19,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 19:08:19,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 19:08:19,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 19:08:19,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:19" (1/1) ... [2022-12-11 19:08:19,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:19" (1/1) ... [2022-12-11 19:08:19,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:19" (1/1) ... [2022-12-11 19:08:19,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:19" (1/1) ... [2022-12-11 19:08:19,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:19" (1/1) ... [2022-12-11 19:08:19,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:19" (1/1) ... [2022-12-11 19:08:19,424 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:19" (1/1) ... [2022-12-11 19:08:19,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:19" (1/1) ... [2022-12-11 19:08:19,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 19:08:19,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 19:08:19,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 19:08:19,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 19:08:19,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:19" (1/1) ... [2022-12-11 19:08:19,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:08:19,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:08:19,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-11 19:08:19,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-11 19:08:19,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 19:08:19,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 19:08:19,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 19:08:19,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 19:08:19,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 19:08:19,541 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-11 19:08:19,541 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-11 19:08:19,541 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-11 19:08:19,541 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-11 19:08:19,541 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-11 19:08:19,541 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-11 19:08:19,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 19:08:19,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 19:08:19,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 19:08:19,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 19:08:19,543 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 19:08:19,702 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 19:08:19,704 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 19:08:19,920 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 19:08:19,926 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 19:08:19,926 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 19:08:19,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:08:19 BoogieIcfgContainer [2022-12-11 19:08:19,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 19:08:19,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 19:08:19,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 19:08:19,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 19:08:19,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 07:08:18" (1/3) ... [2022-12-11 19:08:19,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6d4115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:08:19, skipping insertion in model container [2022-12-11 19:08:19,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:19" (2/3) ... [2022-12-11 19:08:19,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6d4115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:08:19, skipping insertion in model container [2022-12-11 19:08:19,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:08:19" (3/3) ... [2022-12-11 19:08:19,937 INFO L112 eAbstractionObserver]: Analyzing ICFG safe011_tso.i [2022-12-11 19:08:19,953 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 19:08:19,954 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 19:08:19,954 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 19:08:20,017 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 19:08:20,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 183 flow [2022-12-11 19:08:20,115 INFO L130 PetriNetUnfolder]: 2/81 cut-off events. [2022-12-11 19:08:20,115 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:08:20,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-11 19:08:20,120 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 84 transitions, 183 flow [2022-12-11 19:08:20,125 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 69 transitions, 147 flow [2022-12-11 19:08:20,139 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 19:08:20,146 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;@281a8779, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 19:08:20,147 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 19:08:20,176 INFO L130 PetriNetUnfolder]: 1/68 cut-off events. [2022-12-11 19:08:20,177 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:08:20,177 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:08:20,178 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] [2022-12-11 19:08:20,180 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 19:08:20,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:08:20,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1111273434, now seen corresponding path program 1 times [2022-12-11 19:08:20,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:08:20,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061925982] [2022-12-11 19:08:20,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:08:20,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:08:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:08:20,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:08:20,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:08:20,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061925982] [2022-12-11 19:08:20,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061925982] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:08:20,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:08:20,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:08:20,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243016137] [2022-12-11 19:08:20,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:08:20,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:08:20,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:08:20,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:08:20,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:08:20,927 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 84 [2022-12-11 19:08:20,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 147 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) [2022-12-11 19:08:20,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:08:20,932 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 84 [2022-12-11 19:08:20,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:08:21,267 INFO L130 PetriNetUnfolder]: 303/784 cut-off events. [2022-12-11 19:08:21,268 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-11 19:08:21,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1335 conditions, 784 events. 303/784 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4608 event pairs, 31 based on Foata normal form. 29/784 useless extension candidates. Maximal degree in co-relation 1302. Up to 135 conditions per place. [2022-12-11 19:08:21,279 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 22 selfloop transitions, 6 changer transitions 47/126 dead transitions. [2022-12-11 19:08:21,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 126 transitions, 411 flow [2022-12-11 19:08:21,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:08:21,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:08:21,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 900 transitions. [2022-12-11 19:08:21,299 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8241758241758241 [2022-12-11 19:08:21,300 INFO L175 Difference]: Start difference. First operand has 78 places, 69 transitions, 147 flow. Second operand 13 states and 900 transitions. [2022-12-11 19:08:21,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 126 transitions, 411 flow [2022-12-11 19:08:21,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 126 transitions, 408 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-11 19:08:21,309 INFO L231 Difference]: Finished difference. Result has 99 places, 72 transitions, 228 flow [2022-12-11 19:08:21,311 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=228, PETRI_PLACES=99, PETRI_TRANSITIONS=72} [2022-12-11 19:08:21,315 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, 21 predicate places. [2022-12-11 19:08:21,315 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 72 transitions, 228 flow [2022-12-11 19:08:21,316 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) [2022-12-11 19:08:21,316 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:08:21,317 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] [2022-12-11 19:08:21,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 19:08:21,317 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 19:08:21,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:08:21,319 INFO L85 PathProgramCache]: Analyzing trace with hash -830005209, now seen corresponding path program 1 times [2022-12-11 19:08:21,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:08:21,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235235131] [2022-12-11 19:08:21,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:08:21,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:08:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:08:21,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:08:21,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:08:21,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235235131] [2022-12-11 19:08:21,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235235131] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:08:21,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:08:21,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:08:21,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801854252] [2022-12-11 19:08:21,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:08:21,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:08:21,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:08:21,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:08:21,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:08:21,647 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 84 [2022-12-11 19:08:21,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 72 transitions, 228 flow. Second operand has 7 states, 7 states have (on average 64.85714285714286) internal successors, (454), 7 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:08:21,648 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:08:21,648 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 84 [2022-12-11 19:08:21,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:08:21,992 INFO L130 PetriNetUnfolder]: 172/706 cut-off events. [2022-12-11 19:08:21,993 INFO L131 PetriNetUnfolder]: For 1215/1312 co-relation queries the response was YES. [2022-12-11 19:08:21,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1927 conditions, 706 events. 172/706 cut-off events. For 1215/1312 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4742 event pairs, 3 based on Foata normal form. 21/713 useless extension candidates. Maximal degree in co-relation 1883. Up to 112 conditions per place. [2022-12-11 19:08:22,000 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 26 selfloop transitions, 13 changer transitions 52/142 dead transitions. [2022-12-11 19:08:22,000 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 142 transitions, 918 flow [2022-12-11 19:08:22,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:08:22,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:08:22,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 899 transitions. [2022-12-11 19:08:22,004 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8232600732600732 [2022-12-11 19:08:22,004 INFO L175 Difference]: Start difference. First operand has 99 places, 72 transitions, 228 flow. Second operand 13 states and 899 transitions. [2022-12-11 19:08:22,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 142 transitions, 918 flow [2022-12-11 19:08:22,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 142 transitions, 890 flow, removed 12 selfloop flow, removed 4 redundant places. [2022-12-11 19:08:22,017 INFO L231 Difference]: Finished difference. Result has 110 places, 81 transitions, 383 flow [2022-12-11 19:08:22,017 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=383, PETRI_PLACES=110, PETRI_TRANSITIONS=81} [2022-12-11 19:08:22,018 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, 32 predicate places. [2022-12-11 19:08:22,018 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 81 transitions, 383 flow [2022-12-11 19:08:22,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.85714285714286) internal successors, (454), 7 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:08:22,018 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:08:22,019 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 19:08:22,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 19:08:22,019 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 19:08:22,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:08:22,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1494337158, now seen corresponding path program 1 times [2022-12-11 19:08:22,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:08:22,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144374273] [2022-12-11 19:08:22,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:08:22,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:08:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:08:22,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:08:22,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:08:22,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144374273] [2022-12-11 19:08:22,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144374273] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:08:22,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:08:22,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:08:22,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722539063] [2022-12-11 19:08:22,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:08:22,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:08:22,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:08:22,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:08:22,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:08:22,279 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 84 [2022-12-11 19:08:22,280 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 81 transitions, 383 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 19:08:22,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:08:22,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 84 [2022-12-11 19:08:22,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:08:22,510 INFO L130 PetriNetUnfolder]: 98/449 cut-off events. [2022-12-11 19:08:22,510 INFO L131 PetriNetUnfolder]: For 1728/1908 co-relation queries the response was YES. [2022-12-11 19:08:22,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1530 conditions, 449 events. 98/449 cut-off events. For 1728/1908 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2476 event pairs, 10 based on Foata normal form. 13/452 useless extension candidates. Maximal degree in co-relation 1474. Up to 79 conditions per place. [2022-12-11 19:08:22,530 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 27 selfloop transitions, 17 changer transitions 31/126 dead transitions. [2022-12-11 19:08:22,531 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 126 transitions, 958 flow [2022-12-11 19:08:22,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:08:22,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:08:22,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 887 transitions. [2022-12-11 19:08:22,533 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8122710622710623 [2022-12-11 19:08:22,533 INFO L175 Difference]: Start difference. First operand has 110 places, 81 transitions, 383 flow. Second operand 13 states and 887 transitions. [2022-12-11 19:08:22,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 126 transitions, 958 flow [2022-12-11 19:08:22,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 126 transitions, 874 flow, removed 42 selfloop flow, removed 3 redundant places. [2022-12-11 19:08:22,542 INFO L231 Difference]: Finished difference. Result has 121 places, 85 transitions, 483 flow [2022-12-11 19:08:22,542 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=483, PETRI_PLACES=121, PETRI_TRANSITIONS=85} [2022-12-11 19:08:22,542 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, 43 predicate places. [2022-12-11 19:08:22,543 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 85 transitions, 483 flow [2022-12-11 19:08:22,543 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 19:08:22,543 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:08:22,543 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 19:08:22,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 19:08:22,544 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 19:08:22,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:08:22,544 INFO L85 PathProgramCache]: Analyzing trace with hash -421993942, now seen corresponding path program 1 times [2022-12-11 19:08:22,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:08:22,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15408578] [2022-12-11 19:08:22,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:08:22,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:08:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:08:22,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:08:22,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:08:22,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15408578] [2022-12-11 19:08:22,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15408578] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:08:22,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:08:22,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:08:22,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735561017] [2022-12-11 19:08:22,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:08:22,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:08:22,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:08:22,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:08:22,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:08:22,706 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 84 [2022-12-11 19:08:22,706 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 85 transitions, 483 flow. Second operand has 7 states, 7 states have (on average 63.285714285714285) internal successors, (443), 7 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:08:22,706 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:08:22,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 84 [2022-12-11 19:08:22,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:08:23,039 INFO L130 PetriNetUnfolder]: 238/804 cut-off events. [2022-12-11 19:08:23,040 INFO L131 PetriNetUnfolder]: For 4045/4456 co-relation queries the response was YES. [2022-12-11 19:08:23,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2978 conditions, 804 events. 238/804 cut-off events. For 4045/4456 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5145 event pairs, 2 based on Foata normal form. 25/812 useless extension candidates. Maximal degree in co-relation 2922. Up to 151 conditions per place. [2022-12-11 19:08:23,050 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 47 selfloop transitions, 27 changer transitions 59/182 dead transitions. [2022-12-11 19:08:23,050 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 182 transitions, 1767 flow [2022-12-11 19:08:23,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-11 19:08:23,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-11 19:08:23,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1132 transitions. [2022-12-11 19:08:23,053 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7927170868347339 [2022-12-11 19:08:23,054 INFO L175 Difference]: Start difference. First operand has 121 places, 85 transitions, 483 flow. Second operand 17 states and 1132 transitions. [2022-12-11 19:08:23,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 182 transitions, 1767 flow [2022-12-11 19:08:23,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 182 transitions, 1560 flow, removed 78 selfloop flow, removed 16 redundant places. [2022-12-11 19:08:23,070 INFO L231 Difference]: Finished difference. Result has 128 places, 100 transitions, 753 flow [2022-12-11 19:08:23,070 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=753, PETRI_PLACES=128, PETRI_TRANSITIONS=100} [2022-12-11 19:08:23,071 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, 50 predicate places. [2022-12-11 19:08:23,071 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 100 transitions, 753 flow [2022-12-11 19:08:23,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.285714285714285) internal successors, (443), 7 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:08:23,072 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:08:23,072 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 19:08:23,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 19:08:23,072 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 19:08:23,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:08:23,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1261605196, now seen corresponding path program 1 times [2022-12-11 19:08:23,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:08:23,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798693113] [2022-12-11 19:08:23,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:08:23,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:08:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:08:23,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:08:23,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:08:23,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798693113] [2022-12-11 19:08:23,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798693113] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:08:23,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:08:23,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:08:23,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323430680] [2022-12-11 19:08:23,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:08:23,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:08:23,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:08:23,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:08:23,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:08:23,253 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 84 [2022-12-11 19:08:23,254 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 100 transitions, 753 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 19:08:23,254 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:08:23,254 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 84 [2022-12-11 19:08:23,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:08:23,474 INFO L130 PetriNetUnfolder]: 136/607 cut-off events. [2022-12-11 19:08:23,475 INFO L131 PetriNetUnfolder]: For 3933/5168 co-relation queries the response was YES. [2022-12-11 19:08:23,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2445 conditions, 607 events. 136/607 cut-off events. For 3933/5168 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3877 event pairs, 4 based on Foata normal form. 9/601 useless extension candidates. Maximal degree in co-relation 2374. Up to 112 conditions per place. [2022-12-11 19:08:23,483 INFO L137 encePairwiseOnDemand]: 74/84 looper letters, 31 selfloop transitions, 26 changer transitions 32/141 dead transitions. [2022-12-11 19:08:23,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 141 transitions, 1452 flow [2022-12-11 19:08:23,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:08:23,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:08:23,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 875 transitions. [2022-12-11 19:08:23,486 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8012820512820513 [2022-12-11 19:08:23,486 INFO L175 Difference]: Start difference. First operand has 128 places, 100 transitions, 753 flow. Second operand 13 states and 875 transitions. [2022-12-11 19:08:23,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 141 transitions, 1452 flow [2022-12-11 19:08:23,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 141 transitions, 1330 flow, removed 61 selfloop flow, removed 12 redundant places. [2022-12-11 19:08:23,500 INFO L231 Difference]: Finished difference. Result has 127 places, 99 transitions, 827 flow [2022-12-11 19:08:23,500 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=827, PETRI_PLACES=127, PETRI_TRANSITIONS=99} [2022-12-11 19:08:23,501 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, 49 predicate places. [2022-12-11 19:08:23,501 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 99 transitions, 827 flow [2022-12-11 19:08:23,502 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 19:08:23,502 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:08:23,502 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] [2022-12-11 19:08:23,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 19:08:23,502 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 19:08:23,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:08:23,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1987699257, now seen corresponding path program 1 times [2022-12-11 19:08:23,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:08:23,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887954441] [2022-12-11 19:08:23,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:08:23,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:08:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:08:23,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:08:23,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:08:23,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887954441] [2022-12-11 19:08:23,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887954441] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:08:23,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:08:23,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 19:08:23,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309300497] [2022-12-11 19:08:23,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:08:23,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 19:08:23,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:08:23,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 19:08:23,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-11 19:08:23,648 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 84 [2022-12-11 19:08:23,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 99 transitions, 827 flow. Second operand has 8 states, 8 states have (on average 63.0) internal successors, (504), 8 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:08:23,648 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:08:23,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 84 [2022-12-11 19:08:23,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:08:23,836 INFO L130 PetriNetUnfolder]: 143/567 cut-off events. [2022-12-11 19:08:23,837 INFO L131 PetriNetUnfolder]: For 5246/6680 co-relation queries the response was YES. [2022-12-11 19:08:23,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2575 conditions, 567 events. 143/567 cut-off events. For 5246/6680 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3353 event pairs, 8 based on Foata normal form. 17/565 useless extension candidates. Maximal degree in co-relation 2502. Up to 114 conditions per place. [2022-12-11 19:08:23,843 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 28 selfloop transitions, 10 changer transitions 67/154 dead transitions. [2022-12-11 19:08:23,843 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 154 transitions, 1781 flow [2022-12-11 19:08:23,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-11 19:08:23,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-11 19:08:23,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 730 transitions. [2022-12-11 19:08:23,845 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.79004329004329 [2022-12-11 19:08:23,845 INFO L175 Difference]: Start difference. First operand has 127 places, 99 transitions, 827 flow. Second operand 11 states and 730 transitions. [2022-12-11 19:08:23,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 154 transitions, 1781 flow [2022-12-11 19:08:23,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 154 transitions, 1624 flow, removed 59 selfloop flow, removed 10 redundant places. [2022-12-11 19:08:23,861 INFO L231 Difference]: Finished difference. Result has 126 places, 80 transitions, 505 flow [2022-12-11 19:08:23,861 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=761, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=505, PETRI_PLACES=126, PETRI_TRANSITIONS=80} [2022-12-11 19:08:23,862 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, 48 predicate places. [2022-12-11 19:08:23,862 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 80 transitions, 505 flow [2022-12-11 19:08:23,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 63.0) internal successors, (504), 8 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:08:23,863 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:08:23,863 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] [2022-12-11 19:08:23,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 19:08:23,863 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 19:08:23,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:08:23,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1295687785, now seen corresponding path program 1 times [2022-12-11 19:08:23,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:08:23,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538615812] [2022-12-11 19:08:23,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:08:23,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:08:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:08:24,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:08:24,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:08:24,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538615812] [2022-12-11 19:08:24,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538615812] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:08:24,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:08:24,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 19:08:24,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161012368] [2022-12-11 19:08:24,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:08:24,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 19:08:24,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:08:24,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 19:08:24,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 19:08:24,059 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 84 [2022-12-11 19:08:24,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 80 transitions, 505 flow. Second operand has 6 states, 6 states have (on average 68.66666666666667) internal successors, (412), 6 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:08:24,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:08:24,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 84 [2022-12-11 19:08:24,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:08:24,245 INFO L130 PetriNetUnfolder]: 339/918 cut-off events. [2022-12-11 19:08:24,246 INFO L131 PetriNetUnfolder]: For 1579/1689 co-relation queries the response was YES. [2022-12-11 19:08:24,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2021 conditions, 918 events. 339/918 cut-off events. For 1579/1689 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 6638 event pairs, 8 based on Foata normal form. 21/851 useless extension candidates. Maximal degree in co-relation 1949. Up to 249 conditions per place. [2022-12-11 19:08:24,255 INFO L137 encePairwiseOnDemand]: 74/84 looper letters, 29 selfloop transitions, 17 changer transitions 0/112 dead transitions. [2022-12-11 19:08:24,255 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 112 transitions, 665 flow [2022-12-11 19:08:24,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 19:08:24,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 19:08:24,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 718 transitions. [2022-12-11 19:08:24,257 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8547619047619047 [2022-12-11 19:08:24,257 INFO L175 Difference]: Start difference. First operand has 126 places, 80 transitions, 505 flow. Second operand 10 states and 718 transitions. [2022-12-11 19:08:24,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 112 transitions, 665 flow [2022-12-11 19:08:24,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 112 transitions, 529 flow, removed 32 selfloop flow, removed 21 redundant places. [2022-12-11 19:08:24,268 INFO L231 Difference]: Finished difference. Result has 114 places, 95 transitions, 489 flow [2022-12-11 19:08:24,268 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=489, PETRI_PLACES=114, PETRI_TRANSITIONS=95} [2022-12-11 19:08:24,269 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, 36 predicate places. [2022-12-11 19:08:24,269 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 95 transitions, 489 flow [2022-12-11 19:08:24,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.66666666666667) internal successors, (412), 6 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:08:24,270 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:08:24,270 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 19:08:24,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 19:08:24,270 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 19:08:24,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:08:24,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1612633784, now seen corresponding path program 1 times [2022-12-11 19:08:24,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:08:24,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626323027] [2022-12-11 19:08:24,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:08:24,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:08:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:08:24,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:08:24,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:08:24,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626323027] [2022-12-11 19:08:24,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626323027] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:08:24,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:08:24,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:08:24,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415967526] [2022-12-11 19:08:24,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:08:24,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:08:24,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:08:24,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:08:24,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:08:24,440 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 84 [2022-12-11 19:08:24,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 95 transitions, 489 flow. Second operand has 7 states, 7 states have (on average 68.57142857142857) internal successors, (480), 7 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:08:24,441 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:08:24,441 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 84 [2022-12-11 19:08:24,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:08:24,690 INFO L130 PetriNetUnfolder]: 327/891 cut-off events. [2022-12-11 19:08:24,690 INFO L131 PetriNetUnfolder]: For 2279/2729 co-relation queries the response was YES. [2022-12-11 19:08:24,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3082 conditions, 891 events. 327/891 cut-off events. For 2279/2729 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 6646 event pairs, 0 based on Foata normal form. 98/926 useless extension candidates. Maximal degree in co-relation 3021. Up to 340 conditions per place. [2022-12-11 19:08:24,699 INFO L137 encePairwiseOnDemand]: 74/84 looper letters, 22 selfloop transitions, 32 changer transitions 13/133 dead transitions. [2022-12-11 19:08:24,699 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 133 transitions, 859 flow [2022-12-11 19:08:24,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:08:24,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:08:24,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 934 transitions. [2022-12-11 19:08:24,702 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8553113553113553 [2022-12-11 19:08:24,702 INFO L175 Difference]: Start difference. First operand has 114 places, 95 transitions, 489 flow. Second operand 13 states and 934 transitions. [2022-12-11 19:08:24,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 133 transitions, 859 flow [2022-12-11 19:08:24,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 133 transitions, 839 flow, removed 7 selfloop flow, removed 2 redundant places. [2022-12-11 19:08:24,714 INFO L231 Difference]: Finished difference. Result has 128 places, 111 transitions, 672 flow [2022-12-11 19:08:24,714 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=672, PETRI_PLACES=128, PETRI_TRANSITIONS=111} [2022-12-11 19:08:24,715 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, 50 predicate places. [2022-12-11 19:08:24,715 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 111 transitions, 672 flow [2022-12-11 19:08:24,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.57142857142857) internal successors, (480), 7 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:08:24,716 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:08:24,716 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 19:08:24,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-11 19:08:24,716 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 19:08:24,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:08:24,717 INFO L85 PathProgramCache]: Analyzing trace with hash -2142294157, now seen corresponding path program 1 times [2022-12-11 19:08:24,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:08:24,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666916717] [2022-12-11 19:08:24,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:08:24,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:08:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:08:24,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:08:24,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:08:24,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666916717] [2022-12-11 19:08:24,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666916717] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:08:24,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:08:24,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 19:08:24,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103697727] [2022-12-11 19:08:24,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:08:24,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 19:08:24,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:08:24,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 19:08:24,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-11 19:08:24,854 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 84 [2022-12-11 19:08:24,854 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 111 transitions, 672 flow. Second operand has 8 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:08:24,855 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:08:24,855 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 84 [2022-12-11 19:08:24,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:08:25,104 INFO L130 PetriNetUnfolder]: 245/737 cut-off events. [2022-12-11 19:08:25,104 INFO L131 PetriNetUnfolder]: For 3024/3535 co-relation queries the response was YES. [2022-12-11 19:08:25,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3037 conditions, 737 events. 245/737 cut-off events. For 3024/3535 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 5697 event pairs, 0 based on Foata normal form. 95/769 useless extension candidates. Maximal degree in co-relation 2971. Up to 249 conditions per place. [2022-12-11 19:08:25,110 INFO L137 encePairwiseOnDemand]: 76/84 looper letters, 0 selfloop transitions, 0 changer transitions 119/119 dead transitions. [2022-12-11 19:08:25,111 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 119 transitions, 855 flow [2022-12-11 19:08:25,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-11 19:08:25,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-11 19:08:25,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1058 transitions. [2022-12-11 19:08:25,113 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8396825396825397 [2022-12-11 19:08:25,113 INFO L175 Difference]: Start difference. First operand has 128 places, 111 transitions, 672 flow. Second operand 15 states and 1058 transitions. [2022-12-11 19:08:25,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 119 transitions, 855 flow [2022-12-11 19:08:25,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 119 transitions, 675 flow, removed 58 selfloop flow, removed 16 redundant places. [2022-12-11 19:08:25,128 INFO L231 Difference]: Finished difference. Result has 118 places, 0 transitions, 0 flow [2022-12-11 19:08:25,128 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=118, PETRI_TRANSITIONS=0} [2022-12-11 19:08:25,128 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, 40 predicate places. [2022-12-11 19:08:25,129 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 0 transitions, 0 flow [2022-12-11 19:08:25,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:08:25,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 19:08:25,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-11 19:08:25,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-11 19:08:25,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-11 19:08:25,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-11 19:08:25,133 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:08:25,136 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 19:08:25,136 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 19:08:25,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 07:08:25 BasicIcfg [2022-12-11 19:08:25,147 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 19:08:25,147 INFO L158 Benchmark]: Toolchain (without parser) took 6316.13ms. Allocated memory was 192.9MB in the beginning and 318.8MB in the end (delta: 125.8MB). Free memory was 152.0MB in the beginning and 148.1MB in the end (delta: 3.9MB). Peak memory consumption was 130.2MB. Max. memory is 8.0GB. [2022-12-11 19:08:25,148 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 192.9MB. Free memory was 169.9MB in the beginning and 169.8MB in the end (delta: 69.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 19:08:25,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 503.69ms. Allocated memory is still 192.9MB. Free memory was 152.0MB in the beginning and 128.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-11 19:08:25,148 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.12ms. Allocated memory is still 192.9MB. Free memory was 128.9MB in the beginning and 126.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 19:08:25,148 INFO L158 Benchmark]: Boogie Preprocessor took 32.62ms. Allocated memory is still 192.9MB. Free memory was 126.8MB in the beginning and 125.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-11 19:08:25,148 INFO L158 Benchmark]: RCFGBuilder took 488.86ms. Allocated memory is still 192.9MB. Free memory was 125.2MB in the beginning and 111.6MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-11 19:08:25,149 INFO L158 Benchmark]: TraceAbstraction took 5216.97ms. Allocated memory was 192.9MB in the beginning and 318.8MB in the end (delta: 125.8MB). Free memory was 110.0MB in the beginning and 148.1MB in the end (delta: -38.1MB). Peak memory consumption was 88.3MB. Max. memory is 8.0GB. [2022-12-11 19:08:25,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 192.9MB. Free memory was 169.9MB in the beginning and 169.8MB in the end (delta: 69.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 503.69ms. Allocated memory is still 192.9MB. Free memory was 152.0MB in the beginning and 128.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.12ms. Allocated memory is still 192.9MB. Free memory was 128.9MB in the beginning and 126.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.62ms. Allocated memory is still 192.9MB. Free memory was 126.8MB in the beginning and 125.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 488.86ms. Allocated memory is still 192.9MB. Free memory was 125.2MB in the beginning and 111.6MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 5216.97ms. Allocated memory was 192.9MB in the beginning and 318.8MB in the end (delta: 125.8MB). Free memory was 110.0MB in the beginning and 148.1MB in the end (delta: -38.1MB). Peak memory consumption was 88.3MB. 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, 107 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 534 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 534 mSDsluCounter, 706 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 541 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 558 IncrementalHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 165 mSDtfsCounter, 558 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=827occurred in iteration=5, InterpolantAutomatonStates: 118, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 488 NumberOfCodeBlocks, 488 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 479 ConstructedInterpolants, 0 QuantifiedInterpolants, 1923 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 19:08:25,171 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...