/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe037.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 21:04:56,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 21:04:56,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 21:04:56,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 21:04:56,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 21:04:56,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 21:04:56,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 21:04:56,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 21:04:56,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 21:04:56,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 21:04:56,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 21:04:56,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 21:04:56,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 21:04:56,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 21:04:56,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 21:04:56,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 21:04:56,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 21:04:56,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 21:04:56,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 21:04:56,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 21:04:56,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 21:04:56,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 21:04:56,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 21:04:56,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 21:04:57,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 21:04:57,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 21:04:57,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 21:04:57,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 21:04:57,005 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 21:04:57,006 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 21:04:57,006 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 21:04:57,007 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 21:04:57,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 21:04:57,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 21:04:57,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 21:04:57,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 21:04:57,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 21:04:57,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 21:04:57,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 21:04:57,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 21:04:57,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 21:04:57,013 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 21:04:57,048 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 21:04:57,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 21:04:57,050 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 21:04:57,050 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 21:04:57,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 21:04:57,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 21:04:57,051 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 21:04:57,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 21:04:57,052 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 21:04:57,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 21:04:57,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 21:04:57,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 21:04:57,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 21:04:57,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 21:04:57,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 21:04:57,053 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 21:04:57,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 21:04:57,053 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 21:04:57,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 21:04:57,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 21:04:57,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 21:04:57,054 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 21:04:57,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 21:04:57,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:04:57,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 21:04:57,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 21:04:57,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 21:04:57,055 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 21:04:57,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 21:04:57,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 21:04:57,055 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 21:04:57,055 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-11 21:04:57,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 21:04:57,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 21:04:57,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 21:04:57,407 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 21:04:57,408 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 21:04:57,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037.i [2022-12-11 21:04:58,487 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 21:04:58,733 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 21:04:58,733 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037.i [2022-12-11 21:04:58,755 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46eb2106a/24250e51a4df4e65a332bc871de24be2/FLAG3d1f9e6e7 [2022-12-11 21:04:58,771 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46eb2106a/24250e51a4df4e65a332bc871de24be2 [2022-12-11 21:04:58,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 21:04:58,774 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 21:04:58,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 21:04:58,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 21:04:58,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 21:04:58,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:04:58" (1/1) ... [2022-12-11 21:04:58,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18dbafcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:58, skipping insertion in model container [2022-12-11 21:04:58,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:04:58" (1/1) ... [2022-12-11 21:04:58,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 21:04:58,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 21:04:59,015 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/safe037.i[941,954] [2022-12-11 21:04:59,185 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,188 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,188 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,188 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,192 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,192 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,192 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,194 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,196 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,204 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,205 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,207 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,207 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,208 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:04:59,219 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 21:04:59,231 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/safe037.i[941,954] [2022-12-11 21:04:59,264 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,264 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,266 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,266 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,266 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,266 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,267 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,267 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,272 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,272 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,272 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,272 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:59,280 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:59,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:04:59,325 INFO L208 MainTranslator]: Completed translation [2022-12-11 21:04:59,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:59 WrapperNode [2022-12-11 21:04:59,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 21:04:59,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 21:04:59,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 21:04:59,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 21:04:59,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:59" (1/1) ... [2022-12-11 21:04:59,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:59" (1/1) ... [2022-12-11 21:04:59,384 INFO L138 Inliner]: procedures = 176, calls = 59, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2022-12-11 21:04:59,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 21:04:59,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 21:04:59,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 21:04:59,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 21:04:59,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:59" (1/1) ... [2022-12-11 21:04:59,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:59" (1/1) ... [2022-12-11 21:04:59,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:59" (1/1) ... [2022-12-11 21:04:59,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:59" (1/1) ... [2022-12-11 21:04:59,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:59" (1/1) ... [2022-12-11 21:04:59,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:59" (1/1) ... [2022-12-11 21:04:59,419 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:59" (1/1) ... [2022-12-11 21:04:59,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:59" (1/1) ... [2022-12-11 21:04:59,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 21:04:59,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 21:04:59,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 21:04:59,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 21:04:59,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:59" (1/1) ... [2022-12-11 21:04:59,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:04:59,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 21:04:59,460 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 21:04:59,494 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 21:04:59,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 21:04:59,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 21:04:59,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 21:04:59,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 21:04:59,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 21:04:59,512 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-11 21:04:59,512 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-11 21:04:59,512 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-11 21:04:59,512 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-11 21:04:59,512 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-11 21:04:59,512 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-11 21:04:59,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 21:04:59,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 21:04:59,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 21:04:59,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 21:04:59,514 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 21:04:59,649 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 21:04:59,651 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 21:04:59,784 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 21:04:59,790 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 21:04:59,790 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 21:04:59,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:04:59 BoogieIcfgContainer [2022-12-11 21:04:59,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 21:04:59,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 21:04:59,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 21:04:59,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 21:04:59,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 09:04:58" (1/3) ... [2022-12-11 21:04:59,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd7a863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:04:59, skipping insertion in model container [2022-12-11 21:04:59,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:59" (2/3) ... [2022-12-11 21:04:59,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd7a863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:04:59, skipping insertion in model container [2022-12-11 21:04:59,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:04:59" (3/3) ... [2022-12-11 21:04:59,799 INFO L112 eAbstractionObserver]: Analyzing ICFG safe037.i [2022-12-11 21:04:59,815 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 21:04:59,815 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 21:04:59,815 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 21:04:59,859 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 21:04:59,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 86 transitions, 187 flow [2022-12-11 21:04:59,925 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-12-11 21:04:59,925 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 21:04:59,929 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 48 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 21:04:59,929 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 86 transitions, 187 flow [2022-12-11 21:04:59,932 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 71 transitions, 151 flow [2022-12-11 21:04:59,943 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 21:04:59,948 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;@4539867a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 21:04:59,949 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 21:04:59,988 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2022-12-11 21:04:59,988 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 21:04:59,988 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:04:59,989 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 21:04:59,990 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 21:04:59,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:04:59,994 INFO L85 PathProgramCache]: Analyzing trace with hash -205839651, now seen corresponding path program 1 times [2022-12-11 21:05:00,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:05:00,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104252917] [2022-12-11 21:05:00,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:05:00,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:05:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:05:00,798 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 21:05:00,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:05:00,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104252917] [2022-12-11 21:05:00,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104252917] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:05:00,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:05:00,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 21:05:00,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547336987] [2022-12-11 21:05:00,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:05:00,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 21:05:00,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:05:00,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 21:05:00,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 21:05:00,843 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 86 [2022-12-11 21:05:00,849 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 71 transitions, 151 flow. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 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 21:05:00,849 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:05:00,849 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 86 [2022-12-11 21:05:00,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:05:01,061 INFO L130 PetriNetUnfolder]: 117/343 cut-off events. [2022-12-11 21:05:01,062 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-11 21:05:01,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 343 events. 117/343 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1594 event pairs, 2 based on Foata normal form. 15/350 useless extension candidates. Maximal degree in co-relation 544. Up to 81 conditions per place. [2022-12-11 21:05:01,066 INFO L137 encePairwiseOnDemand]: 75/86 looper letters, 15 selfloop transitions, 6 changer transitions 25/102 dead transitions. [2022-12-11 21:05:01,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 102 transitions, 311 flow [2022-12-11 21:05:01,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 21:05:01,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 21:05:01,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 741 transitions. [2022-12-11 21:05:01,090 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8616279069767442 [2022-12-11 21:05:01,098 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 9 predicate places. [2022-12-11 21:05:01,099 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 102 transitions, 311 flow [2022-12-11 21:05:01,113 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 77 transitions, 211 flow [2022-12-11 21:05:01,114 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 77 transitions, 211 flow [2022-12-11 21:05:01,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 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 21:05:01,115 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:05:01,115 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 21:05:01,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 21:05:01,119 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 21:05:01,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:05:01,120 INFO L85 PathProgramCache]: Analyzing trace with hash 136105951, now seen corresponding path program 1 times [2022-12-11 21:05:01,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:05:01,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807228315] [2022-12-11 21:05:01,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:05:01,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:05:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:05:01,427 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 21:05:01,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:05:01,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807228315] [2022-12-11 21:05:01,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807228315] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:05:01,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:05:01,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:05:01,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855905807] [2022-12-11 21:05:01,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:05:01,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:05:01,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:05:01,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:05:01,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:05:01,432 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 86 [2022-12-11 21:05:01,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 77 transitions, 211 flow. Second operand has 7 states, 7 states have (on average 70.57142857142857) internal successors, (494), 7 states have internal predecessors, (494), 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 21:05:01,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:05:01,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 86 [2022-12-11 21:05:01,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:05:01,655 INFO L130 PetriNetUnfolder]: 57/251 cut-off events. [2022-12-11 21:05:01,655 INFO L131 PetriNetUnfolder]: For 31/37 co-relation queries the response was YES. [2022-12-11 21:05:01,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 513 conditions, 251 events. 57/251 cut-off events. For 31/37 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 971 event pairs, 0 based on Foata normal form. 11/262 useless extension candidates. Maximal degree in co-relation 476. Up to 96 conditions per place. [2022-12-11 21:05:01,662 INFO L137 encePairwiseOnDemand]: 77/86 looper letters, 16 selfloop transitions, 9 changer transitions 25/106 dead transitions. [2022-12-11 21:05:01,662 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 106 transitions, 430 flow [2022-12-11 21:05:01,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 21:05:01,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 21:05:01,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 736 transitions. [2022-12-11 21:05:01,671 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8558139534883721 [2022-12-11 21:05:01,672 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 12 predicate places. [2022-12-11 21:05:01,672 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 106 transitions, 430 flow [2022-12-11 21:05:01,676 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 81 transitions, 280 flow [2022-12-11 21:05:01,676 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 81 transitions, 280 flow [2022-12-11 21:05:01,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.57142857142857) internal successors, (494), 7 states have internal predecessors, (494), 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 21:05:01,676 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:05:01,677 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 21:05:01,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 21:05:01,677 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 21:05:01,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:05:01,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1919761505, now seen corresponding path program 1 times [2022-12-11 21:05:01,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:05:01,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654723940] [2022-12-11 21:05:01,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:05:01,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:05:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:05:01,948 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 21:05:01,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:05:01,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654723940] [2022-12-11 21:05:01,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654723940] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:05:01,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:05:01,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 21:05:01,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856831727] [2022-12-11 21:05:01,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:05:01,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 21:05:01,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:05:01,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 21:05:01,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-11 21:05:01,951 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 86 [2022-12-11 21:05:01,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 81 transitions, 280 flow. Second operand has 8 states, 8 states have (on average 70.5) internal successors, (564), 8 states have internal predecessors, (564), 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 21:05:01,952 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:05:01,952 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 86 [2022-12-11 21:05:01,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:05:02,110 INFO L130 PetriNetUnfolder]: 21/142 cut-off events. [2022-12-11 21:05:02,110 INFO L131 PetriNetUnfolder]: For 63/71 co-relation queries the response was YES. [2022-12-11 21:05:02,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 142 events. 21/142 cut-off events. For 63/71 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 332 event pairs, 0 based on Foata normal form. 10/152 useless extension candidates. Maximal degree in co-relation 296. Up to 33 conditions per place. [2022-12-11 21:05:02,112 INFO L137 encePairwiseOnDemand]: 77/86 looper letters, 10 selfloop transitions, 12 changer transitions 16/94 dead transitions. [2022-12-11 21:05:02,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 94 transitions, 434 flow [2022-12-11 21:05:02,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-11 21:05:02,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-11 21:05:02,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 796 transitions. [2022-12-11 21:05:02,114 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8414376321353065 [2022-12-11 21:05:02,116 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 18 predicate places. [2022-12-11 21:05:02,116 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 94 transitions, 434 flow [2022-12-11 21:05:02,118 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 78 transitions, 306 flow [2022-12-11 21:05:02,118 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 78 transitions, 306 flow [2022-12-11 21:05:02,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 70.5) internal successors, (564), 8 states have internal predecessors, (564), 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 21:05:02,119 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:05:02,119 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:05:02,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 21:05:02,120 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 21:05:02,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:05:02,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1100706081, now seen corresponding path program 1 times [2022-12-11 21:05:02,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:05:02,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552665661] [2022-12-11 21:05:02,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:05:02,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:05:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:05:02,317 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 21:05:02,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:05:02,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552665661] [2022-12-11 21:05:02,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552665661] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:05:02,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:05:02,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:05:02,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286973646] [2022-12-11 21:05:02,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:05:02,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:05:02,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:05:02,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:05:02,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:05:02,320 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 86 [2022-12-11 21:05:02,321 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 78 transitions, 306 flow. Second operand has 7 states, 7 states have (on average 70.85714285714286) internal successors, (496), 7 states have internal predecessors, (496), 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 21:05:02,321 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:05:02,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 86 [2022-12-11 21:05:02,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:05:02,422 INFO L130 PetriNetUnfolder]: 19/153 cut-off events. [2022-12-11 21:05:02,422 INFO L131 PetriNetUnfolder]: For 139/155 co-relation queries the response was YES. [2022-12-11 21:05:02,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 153 events. 19/153 cut-off events. For 139/155 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 435 event pairs, 0 based on Foata normal form. 2/152 useless extension candidates. Maximal degree in co-relation 320. Up to 35 conditions per place. [2022-12-11 21:05:02,423 INFO L137 encePairwiseOnDemand]: 80/86 looper letters, 13 selfloop transitions, 1 changer transitions 10/86 dead transitions. [2022-12-11 21:05:02,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 86 transitions, 397 flow [2022-12-11 21:05:02,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 21:05:02,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 21:05:02,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 504 transitions. [2022-12-11 21:05:02,425 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8372093023255814 [2022-12-11 21:05:02,426 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 20 predicate places. [2022-12-11 21:05:02,426 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 86 transitions, 397 flow [2022-12-11 21:05:02,427 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 76 transitions, 312 flow [2022-12-11 21:05:02,427 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 76 transitions, 312 flow [2022-12-11 21:05:02,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.85714285714286) internal successors, (496), 7 states have internal predecessors, (496), 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 21:05:02,428 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:05:02,428 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:05:02,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 21:05:02,428 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 21:05:02,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:05:02,429 INFO L85 PathProgramCache]: Analyzing trace with hash 891372349, now seen corresponding path program 2 times [2022-12-11 21:05:02,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:05:02,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85117687] [2022-12-11 21:05:02,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:05:02,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:05:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:05:02,590 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 21:05:02,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:05:02,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85117687] [2022-12-11 21:05:02,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85117687] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:05:02,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:05:02,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:05:02,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316000618] [2022-12-11 21:05:02,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:05:02,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:05:02,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:05:02,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:05:02,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:05:02,593 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 86 [2022-12-11 21:05:02,594 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 76 transitions, 312 flow. Second operand has 7 states, 7 states have (on average 67.42857142857143) internal successors, (472), 7 states have internal predecessors, (472), 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 21:05:02,594 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:05:02,594 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 86 [2022-12-11 21:05:02,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:05:02,696 INFO L130 PetriNetUnfolder]: 23/214 cut-off events. [2022-12-11 21:05:02,696 INFO L131 PetriNetUnfolder]: For 194/233 co-relation queries the response was YES. [2022-12-11 21:05:02,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 214 events. 23/214 cut-off events. For 194/233 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 797 event pairs, 2 based on Foata normal form. 4/212 useless extension candidates. Maximal degree in co-relation 449. Up to 47 conditions per place. [2022-12-11 21:05:02,698 INFO L137 encePairwiseOnDemand]: 79/86 looper letters, 18 selfloop transitions, 3 changer transitions 5/84 dead transitions. [2022-12-11 21:05:02,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 84 transitions, 401 flow [2022-12-11 21:05:02,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 21:05:02,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 21:05:02,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 481 transitions. [2022-12-11 21:05:02,700 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7990033222591362 [2022-12-11 21:05:02,700 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 22 predicate places. [2022-12-11 21:05:02,700 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 84 transitions, 401 flow [2022-12-11 21:05:02,701 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 79 transitions, 362 flow [2022-12-11 21:05:02,702 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 79 transitions, 362 flow [2022-12-11 21:05:02,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.42857142857143) internal successors, (472), 7 states have internal predecessors, (472), 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 21:05:02,702 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:05:02,702 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:05:02,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 21:05:02,703 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 21:05:02,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:05:02,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1943428157, now seen corresponding path program 3 times [2022-12-11 21:05:02,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:05:02,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203046581] [2022-12-11 21:05:02,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:05:02,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:05:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:05:02,853 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 21:05:02,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:05:02,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203046581] [2022-12-11 21:05:02,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203046581] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:05:02,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:05:02,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:05:02,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336077807] [2022-12-11 21:05:02,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:05:02,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:05:02,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:05:02,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:05:02,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:05:02,855 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 86 [2022-12-11 21:05:02,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 79 transitions, 362 flow. Second operand has 7 states, 7 states have (on average 67.42857142857143) internal successors, (472), 7 states have internal predecessors, (472), 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 21:05:02,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:05:02,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 86 [2022-12-11 21:05:02,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:05:02,962 INFO L130 PetriNetUnfolder]: 30/239 cut-off events. [2022-12-11 21:05:02,962 INFO L131 PetriNetUnfolder]: For 247/299 co-relation queries the response was YES. [2022-12-11 21:05:02,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 595 conditions, 239 events. 30/239 cut-off events. For 247/299 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1040 event pairs, 1 based on Foata normal form. 1/235 useless extension candidates. Maximal degree in co-relation 535. Up to 53 conditions per place. [2022-12-11 21:05:02,963 INFO L137 encePairwiseOnDemand]: 78/86 looper letters, 0 selfloop transitions, 0 changer transitions 83/83 dead transitions. [2022-12-11 21:05:02,963 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 83 transitions, 432 flow [2022-12-11 21:05:02,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 21:05:02,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 21:05:02,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 476 transitions. [2022-12-11 21:05:02,965 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7906976744186046 [2022-12-11 21:05:02,965 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 23 predicate places. [2022-12-11 21:05:02,966 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 83 transitions, 432 flow [2022-12-11 21:05:02,966 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-11 21:05:02,966 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-11 21:05:02,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.42857142857143) internal successors, (472), 7 states have internal predecessors, (472), 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 21:05:02,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 21:05:02,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-11 21:05:02,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-11 21:05:02,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-11 21:05:02,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 21:05:02,970 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2022-12-11 21:05:02,973 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 21:05:02,973 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 21:05:02,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 09:05:02 BasicIcfg [2022-12-11 21:05:02,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 21:05:02,978 INFO L158 Benchmark]: Toolchain (without parser) took 4204.12ms. Allocated memory was 172.0MB in the beginning and 206.6MB in the end (delta: 34.6MB). Free memory was 147.4MB in the beginning and 177.1MB in the end (delta: -29.7MB). Peak memory consumption was 5.9MB. Max. memory is 8.0GB. [2022-12-11 21:05:02,978 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 21:05:02,979 INFO L158 Benchmark]: CACSL2BoogieTranslator took 551.38ms. Allocated memory is still 172.0MB. Free memory was 147.4MB in the beginning and 123.3MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-11 21:05:02,979 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.81ms. Allocated memory is still 172.0MB. Free memory was 123.3MB in the beginning and 121.6MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-11 21:05:02,979 INFO L158 Benchmark]: Boogie Preprocessor took 36.50ms. Allocated memory is still 172.0MB. Free memory was 121.6MB in the beginning and 120.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 21:05:02,980 INFO L158 Benchmark]: RCFGBuilder took 369.46ms. Allocated memory is still 172.0MB. Free memory was 119.8MB in the beginning and 140.0MB in the end (delta: -20.2MB). Peak memory consumption was 6.8MB. Max. memory is 8.0GB. [2022-12-11 21:05:02,980 INFO L158 Benchmark]: TraceAbstraction took 3183.62ms. Allocated memory was 172.0MB in the beginning and 206.6MB in the end (delta: 34.6MB). Free memory was 138.9MB in the beginning and 177.1MB in the end (delta: -38.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 21:05:02,982 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 551.38ms. Allocated memory is still 172.0MB. Free memory was 147.4MB in the beginning and 123.3MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.81ms. Allocated memory is still 172.0MB. Free memory was 123.3MB in the beginning and 121.6MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.50ms. Allocated memory is still 172.0MB. Free memory was 121.6MB in the beginning and 120.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 369.46ms. Allocated memory is still 172.0MB. Free memory was 119.8MB in the beginning and 140.0MB in the end (delta: -20.2MB). Peak memory consumption was 6.8MB. Max. memory is 8.0GB. * TraceAbstraction took 3183.62ms. Allocated memory was 172.0MB in the beginning and 206.6MB in the end (delta: 34.6MB). Free memory was 138.9MB in the beginning and 177.1MB in the end (delta: -38.2MB). There was no memory consumed. 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: 3.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 171 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 171 mSDsluCounter, 238 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 185 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 337 IncrementalHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 53 mSDtfsCounter, 337 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=5, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 934 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 354 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 348 ConstructedInterpolants, 0 QuantifiedInterpolants, 1108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 21:05:02,997 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...