/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/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 19:08:05,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 19:08:05,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 19:08:05,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 19:08:05,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 19:08:05,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 19:08:05,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 19:08:05,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 19:08:05,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 19:08:05,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 19:08:05,282 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 19:08:05,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 19:08:05,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 19:08:05,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 19:08:05,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 19:08:05,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 19:08:05,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 19:08:05,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 19:08:05,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 19:08:05,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 19:08:05,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 19:08:05,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 19:08:05,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 19:08:05,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 19:08:05,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 19:08:05,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 19:08:05,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 19:08:05,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 19:08:05,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 19:08:05,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 19:08:05,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 19:08:05,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 19:08:05,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 19:08:05,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 19:08:05,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 19:08:05,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 19:08:05,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 19:08:05,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 19:08:05,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 19:08:05,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 19:08:05,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 19:08:05,312 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 19:08:05,329 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 19:08:05,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 19:08:05,330 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 19:08:05,330 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 19:08:05,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 19:08:05,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 19:08:05,331 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 19:08:05,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 19:08:05,333 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 19:08:05,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 19:08:05,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 19:08:05,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 19:08:05,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 19:08:05,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 19:08:05,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 19:08:05,335 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 19:08:05,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 19:08:05,335 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 19:08:05,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 19:08:05,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 19:08:05,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 19:08:05,335 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 19:08:05,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 19:08:05,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:08:05,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 19:08:05,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 19:08:05,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 19:08:05,336 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 19:08:05,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 19:08:05,336 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 19:08:05,336 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 19:08:05,336 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-11 19:08:05,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 19:08:05,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 19:08:05,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 19:08:05,601 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 19:08:05,602 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 19:08:05,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-11 19:08:06,590 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 19:08:06,844 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 19:08:06,845 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-11 19:08:06,868 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34d0e0c1d/957c6ddd8cd14dbeaa546cd0152d9aac/FLAGd58ce1aaa [2022-12-11 19:08:06,879 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34d0e0c1d/957c6ddd8cd14dbeaa546cd0152d9aac [2022-12-11 19:08:06,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 19:08:06,882 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 19:08:06,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 19:08:06,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 19:08:06,887 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 19:08:06,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:08:06" (1/1) ... [2022-12-11 19:08:06,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d9e7d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:06, skipping insertion in model container [2022-12-11 19:08:06,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:08:06" (1/1) ... [2022-12-11 19:08:06,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 19:08:06,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 19:08:07,063 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/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2022-12-11 19:08:07,173 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,174 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,174 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,174 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,174 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,175 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,175 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,192 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,192 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,192 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,194 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,194 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,194 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,194 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,194 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,194 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:08:07,207 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 19:08:07,217 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/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2022-12-11 19:08:07,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,234 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,234 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,234 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,234 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,234 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,235 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,235 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,235 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,235 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,237 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,237 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,238 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,238 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,238 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:08:07,238 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:08:07,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:08:07,262 INFO L208 MainTranslator]: Completed translation [2022-12-11 19:08:07,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:07 WrapperNode [2022-12-11 19:08:07,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 19:08:07,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 19:08:07,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 19:08:07,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 19:08:07,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:07" (1/1) ... [2022-12-11 19:08:07,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:07" (1/1) ... [2022-12-11 19:08:07,302 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2022-12-11 19:08:07,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 19:08:07,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 19:08:07,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 19:08:07,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 19:08:07,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:07" (1/1) ... [2022-12-11 19:08:07,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:07" (1/1) ... [2022-12-11 19:08:07,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:07" (1/1) ... [2022-12-11 19:08:07,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:07" (1/1) ... [2022-12-11 19:08:07,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:07" (1/1) ... [2022-12-11 19:08:07,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:07" (1/1) ... [2022-12-11 19:08:07,331 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:07" (1/1) ... [2022-12-11 19:08:07,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:07" (1/1) ... [2022-12-11 19:08:07,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 19:08:07,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 19:08:07,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 19:08:07,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 19:08:07,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:07" (1/1) ... [2022-12-11 19:08:07,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:08:07,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:08:07,371 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 19:08:07,390 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 19:08:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 19:08:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 19:08:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 19:08:07,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 19:08:07,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 19:08:07,404 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-11 19:08:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-11 19:08:07,404 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-11 19:08:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-11 19:08:07,404 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-11 19:08:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-11 19:08:07,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 19:08:07,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 19:08:07,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 19:08:07,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 19:08:07,406 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 19:08:07,543 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 19:08:07,546 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 19:08:07,734 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 19:08:07,738 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 19:08:07,738 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 19:08:07,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:08:07 BoogieIcfgContainer [2022-12-11 19:08:07,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 19:08:07,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 19:08:07,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 19:08:07,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 19:08:07,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 07:08:06" (1/3) ... [2022-12-11 19:08:07,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6192dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:08:07, skipping insertion in model container [2022-12-11 19:08:07,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:08:07" (2/3) ... [2022-12-11 19:08:07,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6192dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:08:07, skipping insertion in model container [2022-12-11 19:08:07,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:08:07" (3/3) ... [2022-12-11 19:08:07,746 INFO L112 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-11 19:08:07,758 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 19:08:07,758 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 19:08:07,759 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 19:08:07,795 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 19:08:07,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 86 transitions, 187 flow [2022-12-11 19:08:07,880 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-12-11 19:08:07,880 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:08:07,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-11 19:08:07,884 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 86 transitions, 187 flow [2022-12-11 19:08:07,889 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 71 transitions, 151 flow [2022-12-11 19:08:07,904 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 19:08:07,909 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;@4e8ba78b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 19:08:07,909 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 19:08:07,937 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2022-12-11 19:08:07,937 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:08:07,937 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:08:07,938 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 19:08:07,938 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 19:08:07,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:08:07,943 INFO L85 PathProgramCache]: Analyzing trace with hash -2039717973, now seen corresponding path program 1 times [2022-12-11 19:08:07,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:08:07,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986944328] [2022-12-11 19:08:07,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:08:07,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:08:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:08:08,577 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 19:08:08,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:08:08,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986944328] [2022-12-11 19:08:08,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986944328] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:08:08,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:08:08,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:08:08,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032366862] [2022-12-11 19:08:08,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:08:08,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:08:08,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:08:08,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:08:08,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:08:08,620 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 86 [2022-12-11 19:08:08,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 71 transitions, 151 flow. Second operand has 7 states, 7 states have (on average 68.71428571428571) internal successors, (481), 7 states have internal predecessors, (481), 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 19:08:08,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:08:08,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 86 [2022-12-11 19:08:08,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:08:08,793 INFO L130 PetriNetUnfolder]: 74/250 cut-off events. [2022-12-11 19:08:08,793 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-11 19:08:08,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 250 events. 74/250 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 950 event pairs, 2 based on Foata normal form. 10/251 useless extension candidates. Maximal degree in co-relation 378. Up to 56 conditions per place. [2022-12-11 19:08:08,795 INFO L137 encePairwiseOnDemand]: 79/86 looper letters, 17 selfloop transitions, 2 changer transitions 22/96 dead transitions. [2022-12-11 19:08:08,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 96 transitions, 289 flow [2022-12-11 19:08:08,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 19:08:08,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 19:08:08,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 648 transitions. [2022-12-11 19:08:08,812 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8372093023255814 [2022-12-11 19:08:08,814 INFO L175 Difference]: Start difference. First operand has 80 places, 71 transitions, 151 flow. Second operand 9 states and 648 transitions. [2022-12-11 19:08:08,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 96 transitions, 289 flow [2022-12-11 19:08:08,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 96 transitions, 284 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-11 19:08:08,822 INFO L231 Difference]: Finished difference. Result has 92 places, 70 transitions, 166 flow [2022-12-11 19:08:08,824 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=166, PETRI_PLACES=92, PETRI_TRANSITIONS=70} [2022-12-11 19:08:08,827 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 12 predicate places. [2022-12-11 19:08:08,827 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 70 transitions, 166 flow [2022-12-11 19:08:08,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.71428571428571) internal successors, (481), 7 states have internal predecessors, (481), 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 19:08:08,828 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:08:08,828 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 19:08:08,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 19:08:08,829 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 19:08:08,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:08:08,830 INFO L85 PathProgramCache]: Analyzing trace with hash 10184164, now seen corresponding path program 1 times [2022-12-11 19:08:08,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:08:08,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896861672] [2022-12-11 19:08:08,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:08:08,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:08:08,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:08:09,018 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 19:08:09,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:08:09,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896861672] [2022-12-11 19:08:09,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896861672] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:08:09,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:08:09,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:08:09,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106289964] [2022-12-11 19:08:09,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:08:09,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:08:09,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:08:09,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:08:09,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:08:09,024 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 86 [2022-12-11 19:08:09,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 70 transitions, 166 flow. Second operand has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 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 19:08:09,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:08:09,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 86 [2022-12-11 19:08:09,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:08:09,293 INFO L130 PetriNetUnfolder]: 82/358 cut-off events. [2022-12-11 19:08:09,293 INFO L131 PetriNetUnfolder]: For 105/125 co-relation queries the response was YES. [2022-12-11 19:08:09,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 668 conditions, 358 events. 82/358 cut-off events. For 105/125 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1736 event pairs, 7 based on Foata normal form. 13/361 useless extension candidates. Maximal degree in co-relation 626. Up to 40 conditions per place. [2022-12-11 19:08:09,296 INFO L137 encePairwiseOnDemand]: 76/86 looper letters, 22 selfloop transitions, 8 changer transitions 38/121 dead transitions. [2022-12-11 19:08:09,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 121 transitions, 462 flow [2022-12-11 19:08:09,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-11 19:08:09,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-11 19:08:09,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1177 transitions. [2022-12-11 19:08:09,299 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8050615595075239 [2022-12-11 19:08:09,299 INFO L175 Difference]: Start difference. First operand has 92 places, 70 transitions, 166 flow. Second operand 17 states and 1177 transitions. [2022-12-11 19:08:09,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 121 transitions, 462 flow [2022-12-11 19:08:09,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 121 transitions, 398 flow, removed 28 selfloop flow, removed 8 redundant places. [2022-12-11 19:08:09,303 INFO L231 Difference]: Finished difference. Result has 109 places, 75 transitions, 244 flow [2022-12-11 19:08:09,303 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=244, PETRI_PLACES=109, PETRI_TRANSITIONS=75} [2022-12-11 19:08:09,304 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 29 predicate places. [2022-12-11 19:08:09,304 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 75 transitions, 244 flow [2022-12-11 19:08:09,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 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 19:08:09,304 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:08:09,305 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 19:08:09,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 19:08:09,305 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 19:08:09,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:08:09,305 INFO L85 PathProgramCache]: Analyzing trace with hash -529011187, now seen corresponding path program 1 times [2022-12-11 19:08:09,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:08:09,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544553033] [2022-12-11 19:08:09,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:08:09,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:08:09,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:08:09,473 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 19:08:09,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:08:09,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544553033] [2022-12-11 19:08:09,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544553033] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:08:09,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:08:09,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:08:09,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065426784] [2022-12-11 19:08:09,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:08:09,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:08:09,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:08:09,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:08:09,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:08:09,477 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 86 [2022-12-11 19:08:09,478 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 75 transitions, 244 flow. Second operand has 7 states, 7 states have (on average 69.0) internal successors, (483), 7 states have internal predecessors, (483), 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 19:08:09,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:08:09,478 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 86 [2022-12-11 19:08:09,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:08:09,567 INFO L130 PetriNetUnfolder]: 20/176 cut-off events. [2022-12-11 19:08:09,567 INFO L131 PetriNetUnfolder]: For 345/454 co-relation queries the response was YES. [2022-12-11 19:08:09,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 176 events. 20/176 cut-off events. For 345/454 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 619 event pairs, 5 based on Foata normal form. 2/171 useless extension candidates. Maximal degree in co-relation 414. Up to 29 conditions per place. [2022-12-11 19:08:09,585 INFO L137 encePairwiseOnDemand]: 79/86 looper letters, 18 selfloop transitions, 4 changer transitions 10/88 dead transitions. [2022-12-11 19:08:09,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 88 transitions, 408 flow [2022-12-11 19:08:09,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 19:08:09,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 19:08:09,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 699 transitions. [2022-12-11 19:08:09,586 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8127906976744186 [2022-12-11 19:08:09,586 INFO L175 Difference]: Start difference. First operand has 109 places, 75 transitions, 244 flow. Second operand 10 states and 699 transitions. [2022-12-11 19:08:09,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 88 transitions, 408 flow [2022-12-11 19:08:09,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 88 transitions, 349 flow, removed 28 selfloop flow, removed 10 redundant places. [2022-12-11 19:08:09,590 INFO L231 Difference]: Finished difference. Result has 103 places, 75 transitions, 240 flow [2022-12-11 19:08:09,590 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=240, PETRI_PLACES=103, PETRI_TRANSITIONS=75} [2022-12-11 19:08:09,591 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 23 predicate places. [2022-12-11 19:08:09,591 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 75 transitions, 240 flow [2022-12-11 19:08:09,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.0) internal successors, (483), 7 states have internal predecessors, (483), 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 19:08:09,591 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:08:09,591 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 19:08:09,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 19:08:09,592 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 19:08:09,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:08:09,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1836437813, now seen corresponding path program 1 times [2022-12-11 19:08:09,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:08:09,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046350929] [2022-12-11 19:08:09,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:08:09,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:08:09,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:08:09,772 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 19:08:09,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:08:09,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046350929] [2022-12-11 19:08:09,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046350929] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:08:09,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:08:09,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:08:09,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430327027] [2022-12-11 19:08:09,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:08:09,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:08:09,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:08:09,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:08:09,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:08:09,781 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 86 [2022-12-11 19:08:09,781 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 75 transitions, 240 flow. Second operand has 7 states, 7 states have (on average 67.14285714285714) internal successors, (470), 7 states have internal predecessors, (470), 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 19:08:09,781 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:08:09,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 86 [2022-12-11 19:08:09,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:08:10,001 INFO L130 PetriNetUnfolder]: 48/319 cut-off events. [2022-12-11 19:08:10,001 INFO L131 PetriNetUnfolder]: For 443/566 co-relation queries the response was YES. [2022-12-11 19:08:10,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 759 conditions, 319 events. 48/319 cut-off events. For 443/566 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1585 event pairs, 2 based on Foata normal form. 9/321 useless extension candidates. Maximal degree in co-relation 706. Up to 45 conditions per place. [2022-12-11 19:08:10,003 INFO L137 encePairwiseOnDemand]: 76/86 looper letters, 29 selfloop transitions, 11 changer transitions 24/118 dead transitions. [2022-12-11 19:08:10,003 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 118 transitions, 641 flow [2022-12-11 19:08:10,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-11 19:08:10,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-11 19:08:10,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1164 transitions. [2022-12-11 19:08:10,006 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7961696306429549 [2022-12-11 19:08:10,006 INFO L175 Difference]: Start difference. First operand has 103 places, 75 transitions, 240 flow. Second operand 17 states and 1164 transitions. [2022-12-11 19:08:10,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 118 transitions, 641 flow [2022-12-11 19:08:10,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 118 transitions, 563 flow, removed 32 selfloop flow, removed 9 redundant places. [2022-12-11 19:08:10,011 INFO L231 Difference]: Finished difference. Result has 119 places, 83 transitions, 356 flow [2022-12-11 19:08:10,011 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=356, PETRI_PLACES=119, PETRI_TRANSITIONS=83} [2022-12-11 19:08:10,012 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 39 predicate places. [2022-12-11 19:08:10,012 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 83 transitions, 356 flow [2022-12-11 19:08:10,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.14285714285714) internal successors, (470), 7 states have internal predecessors, (470), 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 19:08:10,012 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:08:10,012 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 19:08:10,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 19:08:10,013 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 19:08:10,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:08:10,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1286969761, now seen corresponding path program 1 times [2022-12-11 19:08:10,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:08:10,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707661751] [2022-12-11 19:08:10,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:08:10,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:08:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:08:10,128 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 19:08:10,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:08:10,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707661751] [2022-12-11 19:08:10,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707661751] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:08:10,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:08:10,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 19:08:10,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113760526] [2022-12-11 19:08:10,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:08:10,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 19:08:10,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:08:10,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 19:08:10,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-11 19:08:10,131 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 86 [2022-12-11 19:08:10,131 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 83 transitions, 356 flow. Second operand has 8 states, 8 states have (on average 66.875) internal successors, (535), 8 states have internal predecessors, (535), 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 19:08:10,131 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:08:10,132 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 86 [2022-12-11 19:08:10,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:08:10,256 INFO L130 PetriNetUnfolder]: 33/275 cut-off events. [2022-12-11 19:08:10,256 INFO L131 PetriNetUnfolder]: For 767/1203 co-relation queries the response was YES. [2022-12-11 19:08:10,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 772 conditions, 275 events. 33/275 cut-off events. For 767/1203 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1443 event pairs, 5 based on Foata normal form. 8/269 useless extension candidates. Maximal degree in co-relation 738. Up to 38 conditions per place. [2022-12-11 19:08:10,258 INFO L137 encePairwiseOnDemand]: 77/86 looper letters, 17 selfloop transitions, 6 changer transitions 27/103 dead transitions. [2022-12-11 19:08:10,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 103 transitions, 662 flow [2022-12-11 19:08:10,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-11 19:08:10,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-11 19:08:10,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 752 transitions. [2022-12-11 19:08:10,260 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7949260042283298 [2022-12-11 19:08:10,260 INFO L175 Difference]: Start difference. First operand has 119 places, 83 transitions, 356 flow. Second operand 11 states and 752 transitions. [2022-12-11 19:08:10,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 103 transitions, 662 flow [2022-12-11 19:08:10,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 103 transitions, 562 flow, removed 47 selfloop flow, removed 13 redundant places. [2022-12-11 19:08:10,264 INFO L231 Difference]: Finished difference. Result has 112 places, 74 transitions, 274 flow [2022-12-11 19:08:10,264 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=274, PETRI_PLACES=112, PETRI_TRANSITIONS=74} [2022-12-11 19:08:10,265 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 32 predicate places. [2022-12-11 19:08:10,265 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 74 transitions, 274 flow [2022-12-11 19:08:10,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 66.875) internal successors, (535), 8 states have internal predecessors, (535), 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 19:08:10,266 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:08:10,266 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:08:10,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 19:08:10,266 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 19:08:10,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:08:10,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1651650938, now seen corresponding path program 1 times [2022-12-11 19:08:10,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:08:10,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593956000] [2022-12-11 19:08:10,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:08:10,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:08:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:08:10,374 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 19:08:10,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:08:10,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593956000] [2022-12-11 19:08:10,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593956000] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:08:10,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:08:10,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 19:08:10,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671486662] [2022-12-11 19:08:10,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:08:10,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 19:08:10,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:08:10,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 19:08:10,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-11 19:08:10,376 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 86 [2022-12-11 19:08:10,377 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 74 transitions, 274 flow. Second operand has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:08:10,377 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:08:10,377 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 86 [2022-12-11 19:08:10,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:08:10,498 INFO L130 PetriNetUnfolder]: 10/138 cut-off events. [2022-12-11 19:08:10,499 INFO L131 PetriNetUnfolder]: For 269/381 co-relation queries the response was YES. [2022-12-11 19:08:10,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 138 events. 10/138 cut-off events. For 269/381 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 376 event pairs, 5 based on Foata normal form. 2/134 useless extension candidates. Maximal degree in co-relation 328. Up to 22 conditions per place. [2022-12-11 19:08:10,499 INFO L137 encePairwiseOnDemand]: 78/86 looper letters, 13 selfloop transitions, 4 changer transitions 16/85 dead transitions. [2022-12-11 19:08:10,499 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 85 transitions, 422 flow [2022-12-11 19:08:10,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 19:08:10,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 19:08:10,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 681 transitions. [2022-12-11 19:08:10,501 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.791860465116279 [2022-12-11 19:08:10,501 INFO L175 Difference]: Start difference. First operand has 112 places, 74 transitions, 274 flow. Second operand 10 states and 681 transitions. [2022-12-11 19:08:10,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 85 transitions, 422 flow [2022-12-11 19:08:10,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 85 transitions, 318 flow, removed 38 selfloop flow, removed 20 redundant places. [2022-12-11 19:08:10,503 INFO L231 Difference]: Finished difference. Result has 103 places, 69 transitions, 208 flow [2022-12-11 19:08:10,504 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=208, PETRI_PLACES=103, PETRI_TRANSITIONS=69} [2022-12-11 19:08:10,504 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 23 predicate places. [2022-12-11 19:08:10,504 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 69 transitions, 208 flow [2022-12-11 19:08:10,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:08:10,505 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:08:10,505 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 19:08:10,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 19:08:10,505 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 19:08:10,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:08:10,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1994842834, now seen corresponding path program 1 times [2022-12-11 19:08:10,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:08:10,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859575629] [2022-12-11 19:08:10,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:08:10,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:08:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:08:10,613 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 19:08:10,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:08:10,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859575629] [2022-12-11 19:08:10,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859575629] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:08:10,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:08:10,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:08:10,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632806663] [2022-12-11 19:08:10,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:08:10,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:08:10,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:08:10,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:08:10,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:08:10,616 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 86 [2022-12-11 19:08:10,616 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 69 transitions, 208 flow. Second operand has 7 states, 7 states have (on average 70.71428571428571) internal successors, (495), 7 states have internal predecessors, (495), 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 19:08:10,616 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:08:10,616 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 86 [2022-12-11 19:08:10,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:08:10,699 INFO L130 PetriNetUnfolder]: 5/81 cut-off events. [2022-12-11 19:08:10,700 INFO L131 PetriNetUnfolder]: For 89/95 co-relation queries the response was YES. [2022-12-11 19:08:10,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 81 events. 5/81 cut-off events. For 89/95 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 1 based on Foata normal form. 2/82 useless extension candidates. Maximal degree in co-relation 155. Up to 7 conditions per place. [2022-12-11 19:08:10,700 INFO L137 encePairwiseOnDemand]: 79/86 looper letters, 0 selfloop transitions, 0 changer transitions 74/74 dead transitions. [2022-12-11 19:08:10,700 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 74 transitions, 272 flow [2022-12-11 19:08:10,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 19:08:10,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 19:08:10,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 711 transitions. [2022-12-11 19:08:10,702 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8267441860465117 [2022-12-11 19:08:10,702 INFO L175 Difference]: Start difference. First operand has 103 places, 69 transitions, 208 flow. Second operand 10 states and 711 transitions. [2022-12-11 19:08:10,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 74 transitions, 272 flow [2022-12-11 19:08:10,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 74 transitions, 210 flow, removed 20 selfloop flow, removed 14 redundant places. [2022-12-11 19:08:10,703 INFO L231 Difference]: Finished difference. Result has 89 places, 0 transitions, 0 flow [2022-12-11 19:08:10,703 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=89, PETRI_TRANSITIONS=0} [2022-12-11 19:08:10,704 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 9 predicate places. [2022-12-11 19:08:10,704 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 0 transitions, 0 flow [2022-12-11 19:08:10,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.71428571428571) internal successors, (495), 7 states have internal predecessors, (495), 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 19:08:10,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 19:08:10,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-11 19:08:10,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-11 19:08:10,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-11 19:08:10,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 19:08:10,707 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:08:10,709 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 19:08:10,709 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 19:08:10,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 07:08:10 BasicIcfg [2022-12-11 19:08:10,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 19:08:10,713 INFO L158 Benchmark]: Toolchain (without parser) took 3830.71ms. Allocated memory was 190.8MB in the beginning and 229.6MB in the end (delta: 38.8MB). Free memory was 164.7MB in the beginning and 134.1MB in the end (delta: 30.5MB). Peak memory consumption was 69.9MB. Max. memory is 8.0GB. [2022-12-11 19:08:10,713 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 190.8MB. Free memory was 167.0MB in the beginning and 166.9MB in the end (delta: 80.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 19:08:10,713 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.94ms. Allocated memory is still 190.8MB. Free memory was 164.7MB in the beginning and 141.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-11 19:08:10,713 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.83ms. Allocated memory is still 190.8MB. Free memory was 141.6MB in the beginning and 139.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 19:08:10,713 INFO L158 Benchmark]: Boogie Preprocessor took 29.04ms. Allocated memory is still 190.8MB. Free memory was 139.5MB in the beginning and 137.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-11 19:08:10,714 INFO L158 Benchmark]: RCFGBuilder took 406.62ms. Allocated memory is still 190.8MB. Free memory was 137.9MB in the beginning and 123.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-11 19:08:10,714 INFO L158 Benchmark]: TraceAbstraction took 2970.46ms. Allocated memory was 190.8MB in the beginning and 229.6MB in the end (delta: 38.8MB). Free memory was 122.7MB in the beginning and 134.1MB in the end (delta: -11.4MB). Peak memory consumption was 27.9MB. Max. memory is 8.0GB. [2022-12-11 19:08:10,715 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 190.8MB. Free memory was 167.0MB in the beginning and 166.9MB in the end (delta: 80.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 377.94ms. Allocated memory is still 190.8MB. Free memory was 164.7MB in the beginning and 141.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.83ms. Allocated memory is still 190.8MB. Free memory was 141.6MB in the beginning and 139.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.04ms. Allocated memory is still 190.8MB. Free memory was 139.5MB in the beginning and 137.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 406.62ms. Allocated memory is still 190.8MB. Free memory was 137.9MB in the beginning and 123.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 2970.46ms. Allocated memory was 190.8MB in the beginning and 229.6MB in the end (delta: 38.8MB). Free memory was 122.7MB in the beginning and 134.1MB in the end (delta: -11.4MB). Peak memory consumption was 27.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 109 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: 2.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 286 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 286 mSDsluCounter, 441 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 332 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 335 IncrementalHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 109 mSDtfsCounter, 335 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=356occurred in iteration=4, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 387 NumberOfCodeBlocks, 387 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 380 ConstructedInterpolants, 0 QuantifiedInterpolants, 1826 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 19:08:10,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...