/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/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 21:15:07,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 21:15:07,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 21:15:07,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 21:15:07,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 21:15:07,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 21:15:07,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 21:15:07,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 21:15:07,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 21:15:07,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 21:15:07,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 21:15:07,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 21:15:07,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 21:15:07,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 21:15:07,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 21:15:07,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 21:15:07,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 21:15:07,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 21:15:07,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 21:15:07,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 21:15:07,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 21:15:07,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 21:15:07,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 21:15:07,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 21:15:07,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 21:15:07,293 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 21:15:07,293 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 21:15:07,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 21:15:07,295 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 21:15:07,295 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 21:15:07,296 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 21:15:07,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 21:15:07,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 21:15:07,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 21:15:07,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 21:15:07,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 21:15:07,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 21:15:07,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 21:15:07,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 21:15:07,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 21:15:07,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 21:15:07,301 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 21:15:07,329 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 21:15:07,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 21:15:07,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 21:15:07,331 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 21:15:07,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 21:15:07,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 21:15:07,332 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 21:15:07,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 21:15:07,332 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 21:15:07,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 21:15:07,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 21:15:07,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 21:15:07,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 21:15:07,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 21:15:07,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 21:15:07,333 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 21:15:07,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 21:15:07,333 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 21:15:07,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 21:15:07,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 21:15:07,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 21:15:07,334 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 21:15:07,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 21:15:07,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:15:07,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 21:15:07,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 21:15:07,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 21:15:07,335 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 21:15:07,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 21:15:07,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 21:15:07,335 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 21:15:07,335 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-11 21:15:07,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 21:15:07,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 21:15:07,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 21:15:07,636 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 21:15:07,636 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 21:15:07,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2022-12-11 21:15:08,572 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 21:15:08,792 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 21:15:08,792 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2022-12-11 21:15:08,799 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85a109845/4888d21f448e41819d5aa614428f22f7/FLAG132300c3e [2022-12-11 21:15:08,810 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85a109845/4888d21f448e41819d5aa614428f22f7 [2022-12-11 21:15:08,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 21:15:08,812 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 21:15:08,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 21:15:08,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 21:15:08,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 21:15:08,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:15:08" (1/1) ... [2022-12-11 21:15:08,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41848f30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:08, skipping insertion in model container [2022-12-11 21:15:08,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:15:08" (1/1) ... [2022-12-11 21:15:08,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 21:15:08,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 21:15:09,013 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-12-11 21:15:09,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:15:09,031 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 21:15:09,052 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-12-11 21:15:09,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:15:09,080 INFO L208 MainTranslator]: Completed translation [2022-12-11 21:15:09,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:09 WrapperNode [2022-12-11 21:15:09,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 21:15:09,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 21:15:09,082 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 21:15:09,082 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 21:15:09,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:09" (1/1) ... [2022-12-11 21:15:09,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:09" (1/1) ... [2022-12-11 21:15:09,127 INFO L138 Inliner]: procedures = 170, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-12-11 21:15:09,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 21:15:09,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 21:15:09,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 21:15:09,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 21:15:09,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:09" (1/1) ... [2022-12-11 21:15:09,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:09" (1/1) ... [2022-12-11 21:15:09,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:09" (1/1) ... [2022-12-11 21:15:09,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:09" (1/1) ... [2022-12-11 21:15:09,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:09" (1/1) ... [2022-12-11 21:15:09,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:09" (1/1) ... [2022-12-11 21:15:09,155 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:09" (1/1) ... [2022-12-11 21:15:09,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:09" (1/1) ... [2022-12-11 21:15:09,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 21:15:09,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 21:15:09,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 21:15:09,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 21:15:09,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:09" (1/1) ... [2022-12-11 21:15:09,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:15:09,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 21:15:09,182 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 21:15:09,216 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 21:15:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 21:15:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 21:15:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-11 21:15:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 21:15:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 21:15:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-11 21:15:09,241 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-11 21:15:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 21:15:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 21:15:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 21:15:09,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 21:15:09,242 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 21:15:09,357 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 21:15:09,358 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 21:15:09,507 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 21:15:09,512 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 21:15:09,512 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-11 21:15:09,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:15:09 BoogieIcfgContainer [2022-12-11 21:15:09,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 21:15:09,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 21:15:09,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 21:15:09,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 21:15:09,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 09:15:08" (1/3) ... [2022-12-11 21:15:09,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696747cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:15:09, skipping insertion in model container [2022-12-11 21:15:09,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:09" (2/3) ... [2022-12-11 21:15:09,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696747cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:15:09, skipping insertion in model container [2022-12-11 21:15:09,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:15:09" (3/3) ... [2022-12-11 21:15:09,519 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2022-12-11 21:15:09,531 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 21:15:09,532 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 21:15:09,532 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 21:15:09,568 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-11 21:15:09,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 104 transitions, 216 flow [2022-12-11 21:15:09,637 INFO L130 PetriNetUnfolder]: 9/103 cut-off events. [2022-12-11 21:15:09,637 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-11 21:15:09,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 103 events. 9/103 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 156 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2022-12-11 21:15:09,641 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 104 transitions, 216 flow [2022-12-11 21:15:09,644 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 94 transitions, 191 flow [2022-12-11 21:15:09,651 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 21:15:09,655 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;@11fde988, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 21:15:09,655 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-11 21:15:09,672 INFO L130 PetriNetUnfolder]: 2/80 cut-off events. [2022-12-11 21:15:09,672 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 21:15:09,672 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:15:09,673 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 21:15:09,673 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-11 21:15:09,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:15:09,677 INFO L85 PathProgramCache]: Analyzing trace with hash 2011379282, now seen corresponding path program 1 times [2022-12-11 21:15:09,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:15:09,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453671735] [2022-12-11 21:15:09,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:15:09,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:15:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:15:10,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:15:10,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:15:10,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453671735] [2022-12-11 21:15:10,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453671735] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:15:10,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:15:10,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-11 21:15:10,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698875423] [2022-12-11 21:15:10,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:15:10,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-11 21:15:10,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:15:10,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-11 21:15:10,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-11 21:15:10,301 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 104 [2022-12-11 21:15:10,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 94 transitions, 191 flow. Second operand has 9 states, 9 states have (on average 57.111111111111114) internal successors, (514), 9 states have internal predecessors, (514), 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 21:15:10,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:15:10,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 104 [2022-12-11 21:15:10,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:15:10,625 INFO L130 PetriNetUnfolder]: 41/296 cut-off events. [2022-12-11 21:15:10,626 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 21:15:10,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 296 events. 41/296 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1349 event pairs, 10 based on Foata normal form. 96/389 useless extension candidates. Maximal degree in co-relation 361. Up to 29 conditions per place. [2022-12-11 21:15:10,628 INFO L137 encePairwiseOnDemand]: 85/104 looper letters, 28 selfloop transitions, 4 changer transitions 37/115 dead transitions. [2022-12-11 21:15:10,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 115 transitions, 365 flow [2022-12-11 21:15:10,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-11 21:15:10,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-11 21:15:10,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 864 transitions. [2022-12-11 21:15:10,640 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5934065934065934 [2022-12-11 21:15:10,643 INFO L295 CegarLoopForPetriNet]: 89 programPoint places, 12 predicate places. [2022-12-11 21:15:10,643 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 115 transitions, 365 flow [2022-12-11 21:15:10,647 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 78 transitions, 223 flow [2022-12-11 21:15:10,648 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 78 transitions, 223 flow [2022-12-11 21:15:10,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.111111111111114) internal successors, (514), 9 states have internal predecessors, (514), 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 21:15:10,649 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:15:10,649 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] [2022-12-11 21:15:10,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 21:15:10,650 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-11 21:15:10,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:15:10,651 INFO L85 PathProgramCache]: Analyzing trace with hash 391210782, now seen corresponding path program 1 times [2022-12-11 21:15:10,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:15:10,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381343490] [2022-12-11 21:15:10,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:15:10,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:15:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:15:10,881 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 21:15:10,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:15:10,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381343490] [2022-12-11 21:15:10,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381343490] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:15:10,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:15:10,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 21:15:10,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678528051] [2022-12-11 21:15:10,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:15:10,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 21:15:10,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:15:10,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 21:15:10,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-11 21:15:10,885 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 104 [2022-12-11 21:15:10,885 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 78 transitions, 223 flow. Second operand has 6 states, 6 states have (on average 72.83333333333333) internal successors, (437), 6 states have internal predecessors, (437), 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 21:15:10,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:15:10,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 104 [2022-12-11 21:15:10,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:15:10,945 INFO L130 PetriNetUnfolder]: 0/82 cut-off events. [2022-12-11 21:15:10,946 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-11 21:15:10,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 82 events. 0/82 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 7/89 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2022-12-11 21:15:10,947 INFO L137 encePairwiseOnDemand]: 99/104 looper letters, 16 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2022-12-11 21:15:10,947 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 78 transitions, 265 flow [2022-12-11 21:15:10,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-11 21:15:10,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-11 21:15:10,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 373 transitions. [2022-12-11 21:15:10,949 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7173076923076923 [2022-12-11 21:15:10,950 INFO L295 CegarLoopForPetriNet]: 89 programPoint places, 1 predicate places. [2022-12-11 21:15:10,950 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 78 transitions, 265 flow [2022-12-11 21:15:10,953 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 78 transitions, 265 flow [2022-12-11 21:15:10,954 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 78 transitions, 265 flow [2022-12-11 21:15:10,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.83333333333333) internal successors, (437), 6 states have internal predecessors, (437), 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 21:15:10,956 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:15:10,960 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:15:10,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 21:15:10,961 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-11 21:15:10,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:15:10,961 INFO L85 PathProgramCache]: Analyzing trace with hash 719484434, now seen corresponding path program 1 times [2022-12-11 21:15:10,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:15:10,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692442945] [2022-12-11 21:15:10,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:15:10,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:15:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:15:11,470 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 21:15:11,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:15:11,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692442945] [2022-12-11 21:15:11,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692442945] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:15:11,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:15:11,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-11 21:15:11,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141518099] [2022-12-11 21:15:11,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:15:11,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-11 21:15:11,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:15:11,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-11 21:15:11,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2022-12-11 21:15:11,475 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 104 [2022-12-11 21:15:11,475 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 78 transitions, 265 flow. Second operand has 17 states, 17 states have (on average 48.35294117647059) internal successors, (822), 17 states have internal predecessors, (822), 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 21:15:11,475 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:15:11,475 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 104 [2022-12-11 21:15:11,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:15:11,897 INFO L130 PetriNetUnfolder]: 0/80 cut-off events. [2022-12-11 21:15:11,898 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-11 21:15:11,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 80 events. 0/80 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 1/81 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2022-12-11 21:15:11,898 INFO L137 encePairwiseOnDemand]: 84/104 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2022-12-11 21:15:11,898 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 76 transitions, 337 flow [2022-12-11 21:15:11,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-11 21:15:11,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-11 21:15:11,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1006 transitions. [2022-12-11 21:15:11,900 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4606227106227106 [2022-12-11 21:15:11,901 INFO L295 CegarLoopForPetriNet]: 89 programPoint places, 19 predicate places. [2022-12-11 21:15:11,901 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 76 transitions, 337 flow [2022-12-11 21:15:11,901 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-11 21:15:11,901 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-11 21:15:11,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 48.35294117647059) internal successors, (822), 17 states have internal predecessors, (822), 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 21:15:11,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-11 21:15:11,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-11 21:15:11,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 21:15:11,904 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-11 21:15:11,906 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 21:15:11,906 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 21:15:11,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 09:15:11 BasicIcfg [2022-12-11 21:15:11,910 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 21:15:11,910 INFO L158 Benchmark]: Toolchain (without parser) took 3098.14ms. Allocated memory was 185.6MB in the beginning and 225.4MB in the end (delta: 39.8MB). Free memory was 160.1MB in the beginning and 120.7MB in the end (delta: 39.4MB). Peak memory consumption was 78.7MB. Max. memory is 8.0GB. [2022-12-11 21:15:11,910 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 185.6MB. Free memory is still 162.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 21:15:11,911 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.35ms. Allocated memory is still 185.6MB. Free memory was 160.1MB in the beginning and 140.1MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-11 21:15:11,911 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.91ms. Allocated memory is still 185.6MB. Free memory was 140.1MB in the beginning and 138.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 21:15:11,911 INFO L158 Benchmark]: Boogie Preprocessor took 29.36ms. Allocated memory is still 185.6MB. Free memory was 138.0MB in the beginning and 136.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 21:15:11,912 INFO L158 Benchmark]: RCFGBuilder took 355.26ms. Allocated memory is still 185.6MB. Free memory was 136.5MB in the beginning and 121.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-11 21:15:11,912 INFO L158 Benchmark]: TraceAbstraction took 2394.92ms. Allocated memory was 185.6MB in the beginning and 225.4MB in the end (delta: 39.8MB). Free memory was 120.2MB in the beginning and 120.7MB in the end (delta: -450.9kB). Peak memory consumption was 39.9MB. Max. memory is 8.0GB. [2022-12-11 21:15:11,913 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 185.6MB. Free memory is still 162.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 268.35ms. Allocated memory is still 185.6MB. Free memory was 160.1MB in the beginning and 140.1MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.91ms. Allocated memory is still 185.6MB. Free memory was 140.1MB in the beginning and 138.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.36ms. Allocated memory is still 185.6MB. Free memory was 138.0MB in the beginning and 136.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 355.26ms. Allocated memory is still 185.6MB. Free memory was 136.5MB in the beginning and 121.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 2394.92ms. Allocated memory was 185.6MB in the beginning and 225.4MB in the end (delta: 39.8MB). Free memory was 120.2MB in the beginning and 120.7MB in the end (delta: -450.9kB). Peak memory consumption was 39.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 691]: 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 3 procedures, 125 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 210 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 210 mSDsluCounter, 392 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 335 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 354 IncrementalHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 57 mSDtfsCounter, 354 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=265occurred in iteration=2, InterpolantAutomatonStates: 40, 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, 3 MinimizatonAttempts, 479 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 185 ConstructedInterpolants, 0 QuantifiedInterpolants, 817 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 21:15:11,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...