/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 21:21:54,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 21:21:54,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 21:21:54,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 21:21:54,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 21:21:54,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 21:21:54,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 21:21:54,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 21:21:54,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 21:21:54,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 21:21:54,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 21:21:54,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 21:21:54,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 21:21:54,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 21:21:54,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 21:21:54,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 21:21:54,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 21:21:54,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 21:21:54,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 21:21:54,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 21:21:54,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 21:21:54,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 21:21:54,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 21:21:54,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 21:21:54,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 21:21:54,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 21:21:54,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 21:21:54,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 21:21:54,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 21:21:54,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-05 21:21:54,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 21:21:54,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 21:21:54,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 21:21:54,581 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-SemanticLbe.epf [2022-12-05 21:21:54,606 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 21:21:54,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 21:21:54,607 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 21:21:54,607 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 21:21:54,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 21:21:54,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 21:21:54,609 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 21:21:54,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 21:21:54,609 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 21:21:54,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 21:21:54,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 21:21:54,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 21:21:54,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 21:21:54,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 21:21:54,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 21:21:54,610 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 21:21:54,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 21:21:54,610 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 21:21:54,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 21:21:54,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 21:21:54,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 21:21:54,611 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 21:21:54,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 21:21:54,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 21:21:54,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 21:21:54,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 21:21:54,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 21:21:54,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 21:21:54,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 21:21:54,612 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 21:21:54,612 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 21:21:54,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 21:21:54,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 21:21:54,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 21:21:54,916 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 21:21:54,916 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 21:21:54,917 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c [2022-12-05 21:21:55,884 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 21:21:56,069 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 21:21:56,069 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c [2022-12-05 21:21:56,075 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1a18c122/01ef0789c0f0405e848003a4fc75e504/FLAG9f1bfb22e [2022-12-05 21:21:56,097 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1a18c122/01ef0789c0f0405e848003a4fc75e504 [2022-12-05 21:21:56,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 21:21:56,100 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 21:21:56,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 21:21:56,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 21:21:56,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 21:21:56,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:21:56" (1/1) ... [2022-12-05 21:21:56,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4d6485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:56, skipping insertion in model container [2022-12-05 21:21:56,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:21:56" (1/1) ... [2022-12-05 21:21:56,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 21:21:56,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 21:21:56,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,234 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,234 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,235 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,235 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,236 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,236 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,236 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,236 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,237 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,237 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,237 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,238 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,238 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,238 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,238 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,238 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,242 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,242 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,242 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,247 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,247 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,248 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,254 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,254 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,254 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,256 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,256 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,256 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,257 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,257 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,257 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,257 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,257 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,266 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c[5274,5287] [2022-12-05 21:21:56,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 21:21:56,284 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 21:21:56,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,294 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,294 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,294 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,294 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,307 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,307 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 21:21:56,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 21:21:56,328 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c[5274,5287] [2022-12-05 21:21:56,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 21:21:56,340 INFO L208 MainTranslator]: Completed translation [2022-12-05 21:21:56,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:56 WrapperNode [2022-12-05 21:21:56,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 21:21:56,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 21:21:56,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 21:21:56,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 21:21:56,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:56" (1/1) ... [2022-12-05 21:21:56,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:56" (1/1) ... [2022-12-05 21:21:56,377 INFO L138 Inliner]: procedures = 27, calls = 130, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 358 [2022-12-05 21:21:56,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 21:21:56,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 21:21:56,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 21:21:56,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 21:21:56,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:56" (1/1) ... [2022-12-05 21:21:56,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:56" (1/1) ... [2022-12-05 21:21:56,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:56" (1/1) ... [2022-12-05 21:21:56,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:56" (1/1) ... [2022-12-05 21:21:56,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:56" (1/1) ... [2022-12-05 21:21:56,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:56" (1/1) ... [2022-12-05 21:21:56,400 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:56" (1/1) ... [2022-12-05 21:21:56,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:56" (1/1) ... [2022-12-05 21:21:56,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 21:21:56,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 21:21:56,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 21:21:56,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 21:21:56,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:56" (1/1) ... [2022-12-05 21:21:56,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 21:21:56,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 21:21:56,438 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) [2022-12-05 21:21:56,445 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 [2022-12-05 21:21:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 21:21:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 21:21:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 21:21:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 21:21:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-05 21:21:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-05 21:21:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-05 21:21:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-05 21:21:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-05 21:21:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-05 21:21:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-05 21:21:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-05 21:21:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 21:21:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-12-05 21:21:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-12-05 21:21:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-12-05 21:21:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-12-05 21:21:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2022-12-05 21:21:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2022-12-05 21:21:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2022-12-05 21:21:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2022-12-05 21:21:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 21:21:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 21:21:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 21:21:56,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 21:21:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 21:21:56,471 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 21:21:56,559 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 21:21:56,561 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 21:21:56,901 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 21:21:57,002 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 21:21:57,002 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 21:21:57,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:21:57 BoogieIcfgContainer [2022-12-05 21:21:57,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 21:21:57,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 21:21:57,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 21:21:57,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 21:21:57,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 09:21:56" (1/3) ... [2022-12-05 21:21:57,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac643bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:21:57, skipping insertion in model container [2022-12-05 21:21:57,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:21:56" (2/3) ... [2022-12-05 21:21:57,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac643bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:21:57, skipping insertion in model container [2022-12-05 21:21:57,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:21:57" (3/3) ... [2022-12-05 21:21:57,010 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-8.wvr.c [2022-12-05 21:21:57,023 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 21:21:57,024 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 21:21:57,024 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 21:21:57,129 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-12-05 21:21:57,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 250 places, 227 transitions, 518 flow [2022-12-05 21:21:57,256 INFO L130 PetriNetUnfolder]: 2/219 cut-off events. [2022-12-05 21:21:57,256 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-05 21:21:57,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 219 events. 2/219 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 103 event pairs, 0 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 172. Up to 2 conditions per place. [2022-12-05 21:21:57,260 INFO L82 GeneralOperation]: Start removeDead. Operand has 250 places, 227 transitions, 518 flow [2022-12-05 21:21:57,263 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 199 transitions, 446 flow [2022-12-05 21:21:57,264 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 21:21:57,276 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 222 places, 199 transitions, 446 flow [2022-12-05 21:21:57,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 222 places, 199 transitions, 446 flow [2022-12-05 21:21:57,314 INFO L130 PetriNetUnfolder]: 2/199 cut-off events. [2022-12-05 21:21:57,314 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-05 21:21:57,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 199 events. 2/199 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 102 event pairs, 0 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 172. Up to 2 conditions per place. [2022-12-05 21:21:57,320 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 222 places, 199 transitions, 446 flow [2022-12-05 21:21:57,320 INFO L188 LiptonReduction]: Number of co-enabled transitions 5502 [2022-12-05 21:22:13,362 INFO L203 LiptonReduction]: Total number of compositions: 149 [2022-12-05 21:22:13,373 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 21:22:13,377 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;@724d9ae7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 21:22:13,377 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-12-05 21:22:13,386 INFO L130 PetriNetUnfolder]: 0/49 cut-off events. [2022-12-05 21:22:13,386 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-05 21:22:13,386 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 21:22:13,387 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 21:22:13,387 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 6 more)] === [2022-12-05 21:22:13,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 21:22:13,391 INFO L85 PathProgramCache]: Analyzing trace with hash 137922621, now seen corresponding path program 1 times [2022-12-05 21:22:13,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 21:22:13,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671226958] [2022-12-05 21:22:13,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 21:22:13,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 21:22:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 21:22:15,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 21:22:15,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 21:22:15,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671226958] [2022-12-05 21:22:15,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671226958] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 21:22:15,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 21:22:15,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 21:22:15,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17979708] [2022-12-05 21:22:15,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 21:22:15,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 21:22:15,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 21:22:15,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 21:22:15,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-12-05 21:22:15,406 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 50 [2022-12-05 21:22:15,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 50 transitions, 148 flow. Second operand has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2022-12-05 21:22:15,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 21:22:15,408 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 50 [2022-12-05 21:22:15,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 21:22:32,409 INFO L130 PetriNetUnfolder]: 232377/283581 cut-off events. [2022-12-05 21:22:32,409 INFO L131 PetriNetUnfolder]: For 19884/19884 co-relation queries the response was YES. [2022-12-05 21:22:33,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 586214 conditions, 283581 events. 232377/283581 cut-off events. For 19884/19884 co-relation queries the response was YES. Maximal size of possible extension queue 5667. Compared 1404325 event pairs, 65501 based on Foata normal form. 1/283582 useless extension candidates. Maximal degree in co-relation 462248. Up to 136160 conditions per place. [2022-12-05 21:22:33,732 INFO L137 encePairwiseOnDemand]: 39/50 looper letters, 118 selfloop transitions, 17 changer transitions 16/151 dead transitions. [2022-12-05 21:22:33,732 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 151 transitions, 733 flow [2022-12-05 21:22:33,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 21:22:33,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 21:22:33,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 152 transitions. [2022-12-05 21:22:33,741 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.608 [2022-12-05 21:22:33,742 INFO L175 Difference]: Start difference. First operand has 75 places, 50 transitions, 148 flow. Second operand 5 states and 152 transitions. [2022-12-05 21:22:33,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 151 transitions, 733 flow [2022-12-05 21:22:34,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 151 transitions, 647 flow, removed 0 selfloop flow, removed 16 redundant places. [2022-12-05 21:22:34,350 INFO L231 Difference]: Finished difference. Result has 66 places, 65 transitions, 237 flow [2022-12-05 21:22:34,351 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=237, PETRI_PLACES=66, PETRI_TRANSITIONS=65} [2022-12-05 21:22:34,353 INFO L294 CegarLoopForPetriNet]: 75 programPoint places, -9 predicate places. [2022-12-05 21:22:34,353 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 65 transitions, 237 flow [2022-12-05 21:22:34,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2022-12-05 21:22:34,354 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 21:22:34,354 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 21:22:34,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 21:22:34,354 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 6 more)] === [2022-12-05 21:22:34,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 21:22:34,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1276697227, now seen corresponding path program 2 times [2022-12-05 21:22:34,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 21:22:34,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082183392] [2022-12-05 21:22:34,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 21:22:34,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 21:22:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 21:22:35,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 21:22:35,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 21:22:35,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082183392] [2022-12-05 21:22:35,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082183392] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 21:22:35,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 21:22:35,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 21:22:35,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435867965] [2022-12-05 21:22:35,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 21:22:35,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 21:22:35,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 21:22:35,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 21:22:35,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-05 21:22:35,484 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 50 [2022-12-05 21:22:35,485 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 65 transitions, 237 flow. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2022-12-05 21:22:35,485 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 21:22:35,485 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 50 [2022-12-05 21:22:35,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 21:22:49,967 INFO L130 PetriNetUnfolder]: 226327/277531 cut-off events. [2022-12-05 21:22:49,967 INFO L131 PetriNetUnfolder]: For 92280/92280 co-relation queries the response was YES. [2022-12-05 21:22:50,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 800567 conditions, 277531 events. 226327/277531 cut-off events. For 92280/92280 co-relation queries the response was YES. Maximal size of possible extension queue 5830. Compared 1409316 event pairs, 45903 based on Foata normal form. 1/277532 useless extension candidates. Maximal degree in co-relation 496906. Up to 132544 conditions per place. [2022-12-05 21:22:51,242 INFO L137 encePairwiseOnDemand]: 39/50 looper letters, 138 selfloop transitions, 24 changer transitions 25/187 dead transitions. [2022-12-05 21:22:51,242 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 187 transitions, 975 flow [2022-12-05 21:22:51,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 21:22:51,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 21:22:51,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 181 transitions. [2022-12-05 21:22:51,244 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6033333333333334 [2022-12-05 21:22:51,244 INFO L175 Difference]: Start difference. First operand has 66 places, 65 transitions, 237 flow. Second operand 6 states and 181 transitions. [2022-12-05 21:22:51,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 187 transitions, 975 flow [2022-12-05 21:22:51,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 187 transitions, 956 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-05 21:22:51,320 INFO L231 Difference]: Finished difference. Result has 72 places, 72 transitions, 365 flow [2022-12-05 21:22:51,320 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=365, PETRI_PLACES=72, PETRI_TRANSITIONS=72} [2022-12-05 21:22:51,321 INFO L294 CegarLoopForPetriNet]: 75 programPoint places, -3 predicate places. [2022-12-05 21:22:51,321 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 72 transitions, 365 flow [2022-12-05 21:22:51,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2022-12-05 21:22:51,321 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 21:22:51,321 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 21:22:51,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 21:22:51,321 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 6 more)] === [2022-12-05 21:22:51,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 21:22:51,322 INFO L85 PathProgramCache]: Analyzing trace with hash 860348505, now seen corresponding path program 3 times [2022-12-05 21:22:51,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 21:22:51,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357358768] [2022-12-05 21:22:51,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 21:22:51,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 21:22:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 21:22:51,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 21:22:51,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 21:22:51,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357358768] [2022-12-05 21:22:51,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357358768] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 21:22:51,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 21:22:51,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 21:22:51,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351720781] [2022-12-05 21:22:51,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 21:22:51,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 21:22:51,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 21:22:51,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 21:22:51,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-05 21:22:51,645 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 50 [2022-12-05 21:22:51,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 72 transitions, 365 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 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) [2022-12-05 21:22:51,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 21:22:51,646 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 50 [2022-12-05 21:22:51,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand