/usr/bin/java -Xmx16000000000 -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-After.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 11:57:19,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 11:57:19,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 11:57:19,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 11:57:19,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 11:57:19,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 11:57:19,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 11:57:19,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 11:57:19,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 11:57:19,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 11:57:19,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 11:57:19,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 11:57:19,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 11:57:19,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 11:57:19,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 11:57:19,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 11:57:19,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 11:57:19,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 11:57:19,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 11:57:19,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 11:57:19,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 11:57:19,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 11:57:19,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 11:57:19,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 11:57:19,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 11:57:19,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 11:57:19,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 11:57:19,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 11:57:19,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 11:57:19,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 11:57:19,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 11:57:19,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 11:57:19,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 11:57:19,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 11:57:19,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 11:57:19,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 11:57:19,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 11:57:19,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 11:57:19,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 11:57:19,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 11:57:19,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 11:57:19,735 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-After.epf [2022-01-19 11:57:19,751 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 11:57:19,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 11:57:19,752 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 11:57:19,753 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 11:57:19,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 11:57:19,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 11:57:19,753 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 11:57:19,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 11:57:19,753 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 11:57:19,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 11:57:19,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 11:57:19,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 11:57:19,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 11:57:19,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 11:57:19,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 11:57:19,754 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 11:57:19,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 11:57:19,755 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 11:57:19,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 11:57:19,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 11:57:19,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 11:57:19,755 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 11:57:19,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 11:57:19,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 11:57:19,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 11:57:19,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 11:57:19,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 11:57:19,756 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 11:57:19,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 11:57:19,757 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 11:57:19,757 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 11:57:19,757 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=AFTER [2022-01-19 11:57:19,757 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 11:57:19,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 11:57:19,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 11:57:19,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 11:57:19,937 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 11:57:19,939 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 11:57:19,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2022-01-19 11:57:20,008 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c52936ff5/3cf927f2ab5f48e4b457d5f68292ba36/FLAG1d11b0656 [2022-01-19 11:57:20,362 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 11:57:20,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2022-01-19 11:57:20,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c52936ff5/3cf927f2ab5f48e4b457d5f68292ba36/FLAG1d11b0656 [2022-01-19 11:57:20,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c52936ff5/3cf927f2ab5f48e4b457d5f68292ba36 [2022-01-19 11:57:20,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 11:57:20,773 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 11:57:20,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 11:57:20,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 11:57:20,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 11:57:20,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 11:57:20" (1/1) ... [2022-01-19 11:57:20,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7141d7fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:20, skipping insertion in model container [2022-01-19 11:57:20,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 11:57:20" (1/1) ... [2022-01-19 11:57:20,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 11:57:20,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 11:57:20,948 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i[1129,1142] [2022-01-19 11:57:21,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 11:57:21,035 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 11:57:21,042 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i[1129,1142] [2022-01-19 11:57:21,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 11:57:21,099 INFO L208 MainTranslator]: Completed translation [2022-01-19 11:57:21,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:21 WrapperNode [2022-01-19 11:57:21,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 11:57:21,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 11:57:21,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 11:57:21,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 11:57:21,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:21" (1/1) ... [2022-01-19 11:57:21,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:21" (1/1) ... [2022-01-19 11:57:21,130 INFO L137 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 53 [2022-01-19 11:57:21,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 11:57:21,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 11:57:21,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 11:57:21,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 11:57:21,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:21" (1/1) ... [2022-01-19 11:57:21,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:21" (1/1) ... [2022-01-19 11:57:21,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:21" (1/1) ... [2022-01-19 11:57:21,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:21" (1/1) ... [2022-01-19 11:57:21,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:21" (1/1) ... [2022-01-19 11:57:21,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:21" (1/1) ... [2022-01-19 11:57:21,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:21" (1/1) ... [2022-01-19 11:57:21,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 11:57:21,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 11:57:21,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 11:57:21,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 11:57:21,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:21" (1/1) ... [2022-01-19 11:57:21,153 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 11:57:21,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 11:57:21,187 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) [2022-01-19 11:57:21,207 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 [2022-01-19 11:57:21,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 11:57:21,222 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-19 11:57:21,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 11:57:21,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 11:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-01-19 11:57:21,223 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-01-19 11:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 11:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 11:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 11:57:21,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 11:57:21,225 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 11:57:21,300 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 11:57:21,301 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 11:57:21,445 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 11:57:21,449 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 11:57:21,449 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 11:57:21,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 11:57:21 BoogieIcfgContainer [2022-01-19 11:57:21,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 11:57:21,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 11:57:21,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 11:57:21,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 11:57:21,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 11:57:20" (1/3) ... [2022-01-19 11:57:21,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638dc191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 11:57:21, skipping insertion in model container [2022-01-19 11:57:21,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:21" (2/3) ... [2022-01-19 11:57:21,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638dc191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 11:57:21, skipping insertion in model container [2022-01-19 11:57:21,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 11:57:21" (3/3) ... [2022-01-19 11:57:21,455 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2022-01-19 11:57:21,458 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 11:57:21,458 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 11:57:21,458 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 11:57:21,474 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,475 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,475 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,475 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,475 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,475 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,475 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,475 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,476 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,476 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,476 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,476 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,476 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,476 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,476 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,477 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,477 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,477 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,477 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,477 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,479 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,479 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,479 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,480 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,480 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,480 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:21,481 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 11:57:21,509 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 11:57:21,514 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 11:57:21,515 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 11:57:21,522 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 147 flow [2022-01-19 11:57:21,546 INFO L129 PetriNetUnfolder]: 1/70 cut-off events. [2022-01-19 11:57:21,547 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 11:57:21,549 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 70 events. 1/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2022-01-19 11:57:21,549 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 71 transitions, 147 flow [2022-01-19 11:57:21,551 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 58 transitions, 119 flow [2022-01-19 11:57:21,562 INFO L129 PetriNetUnfolder]: 0/57 cut-off events. [2022-01-19 11:57:21,562 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 11:57:21,562 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:57:21,563 INFO L254 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] [2022-01-19 11:57:21,563 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 11:57:21,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:57:21,566 INFO L85 PathProgramCache]: Analyzing trace with hash 534822066, now seen corresponding path program 1 times [2022-01-19 11:57:21,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:57:21,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442854379] [2022-01-19 11:57:21,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:57:21,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:57:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:57:21,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:57:21,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:57:21,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442854379] [2022-01-19 11:57:21,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442854379] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:57:21,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:57:21,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 11:57:21,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636205132] [2022-01-19 11:57:21,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:57:21,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 11:57:21,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:57:21,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 11:57:21,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 11:57:21,809 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 71 [2022-01-19 11:57:21,811 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 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) [2022-01-19 11:57:21,811 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:57:21,811 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 71 [2022-01-19 11:57:21,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:57:21,857 INFO L129 PetriNetUnfolder]: 2/87 cut-off events. [2022-01-19 11:57:21,858 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 11:57:21,858 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 87 events. 2/87 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 148 event pairs, 0 based on Foata normal form. 3/89 useless extension candidates. Maximal degree in co-relation 74. Up to 9 conditions per place. [2022-01-19 11:57:21,859 INFO L132 encePairwiseOnDemand]: 66/71 looper letters, 6 selfloop transitions, 2 changer transitions 8/66 dead transitions. [2022-01-19 11:57:21,859 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 66 transitions, 167 flow [2022-01-19 11:57:21,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 11:57:21,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 11:57:21,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 438 transitions. [2022-01-19 11:57:21,871 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8812877263581489 [2022-01-19 11:57:21,871 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 438 transitions. [2022-01-19 11:57:21,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 438 transitions. [2022-01-19 11:57:21,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:57:21,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 438 transitions. [2022-01-19 11:57:21,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 62.57142857142857) internal successors, (438), 7 states have internal predecessors, (438), 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) [2022-01-19 11:57:21,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 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) [2022-01-19 11:57:21,881 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 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) [2022-01-19 11:57:21,882 INFO L186 Difference]: Start difference. First operand has 62 places, 58 transitions, 119 flow. Second operand 7 states and 438 transitions. [2022-01-19 11:57:21,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 66 transitions, 167 flow [2022-01-19 11:57:21,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 66 transitions, 166 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 11:57:21,886 INFO L242 Difference]: Finished difference. Result has 72 places, 58 transitions, 134 flow [2022-01-19 11:57:21,887 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=134, PETRI_PLACES=72, PETRI_TRANSITIONS=58} [2022-01-19 11:57:21,889 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, 10 predicate places. [2022-01-19 11:57:21,889 INFO L470 AbstractCegarLoop]: Abstraction has has 72 places, 58 transitions, 134 flow [2022-01-19 11:57:21,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 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) [2022-01-19 11:57:21,889 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:57:21,889 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 11:57:21,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 11:57:21,890 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 11:57:21,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:57:21,890 INFO L85 PathProgramCache]: Analyzing trace with hash -381449297, now seen corresponding path program 1 times [2022-01-19 11:57:21,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:57:21,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051666430] [2022-01-19 11:57:21,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:57:21,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:57:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:57:21,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:57:21,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:57:21,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051666430] [2022-01-19 11:57:21,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051666430] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:57:21,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:57:21,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 11:57:21,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488904409] [2022-01-19 11:57:21,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:57:21,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 11:57:21,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:57:21,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 11:57:21,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 11:57:21,959 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 71 [2022-01-19 11:57:21,960 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 58 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) [2022-01-19 11:57:21,960 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:57:21,960 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 71 [2022-01-19 11:57:21,960 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:57:22,014 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2022-01-19 11:57:22,014 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-01-19 11:57:22,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 82 events. 2/82 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 1 based on Foata normal form. 6/88 useless extension candidates. Maximal degree in co-relation 113. Up to 13 conditions per place. [2022-01-19 11:57:22,015 INFO L132 encePairwiseOnDemand]: 65/71 looper letters, 10 selfloop transitions, 6 changer transitions 1/60 dead transitions. [2022-01-19 11:57:22,015 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 60 transitions, 172 flow [2022-01-19 11:57:22,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 11:57:22,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 11:57:22,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2022-01-19 11:57:22,022 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8262910798122066 [2022-01-19 11:57:22,022 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 176 transitions. [2022-01-19 11:57:22,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 176 transitions. [2022-01-19 11:57:22,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:57:22,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 176 transitions. [2022-01-19 11:57:22,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) [2022-01-19 11:57:22,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2022-01-19 11:57:22,025 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2022-01-19 11:57:22,025 INFO L186 Difference]: Start difference. First operand has 72 places, 58 transitions, 134 flow. Second operand 3 states and 176 transitions. [2022-01-19 11:57:22,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 60 transitions, 172 flow [2022-01-19 11:57:22,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 60 transitions, 162 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-01-19 11:57:22,028 INFO L242 Difference]: Finished difference. Result has 66 places, 59 transitions, 146 flow [2022-01-19 11:57:22,028 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=66, PETRI_TRANSITIONS=59} [2022-01-19 11:57:22,028 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, 4 predicate places. [2022-01-19 11:57:22,028 INFO L470 AbstractCegarLoop]: Abstraction has has 66 places, 59 transitions, 146 flow [2022-01-19 11:57:22,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) [2022-01-19 11:57:22,029 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:57:22,029 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 11:57:22,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 11:57:22,029 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 11:57:22,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:57:22,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1689205470, now seen corresponding path program 1 times [2022-01-19 11:57:22,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:57:22,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208919839] [2022-01-19 11:57:22,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:57:22,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:57:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:57:22,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:57:22,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:57:22,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208919839] [2022-01-19 11:57:22,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208919839] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:57:22,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:57:22,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 11:57:22,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873663093] [2022-01-19 11:57:22,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:57:22,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 11:57:22,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:57:22,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 11:57:22,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 11:57:22,191 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 71 [2022-01-19 11:57:22,191 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 59 transitions, 146 flow. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 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) [2022-01-19 11:57:22,191 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:57:22,192 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 71 [2022-01-19 11:57:22,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:57:22,246 INFO L129 PetriNetUnfolder]: 1/53 cut-off events. [2022-01-19 11:57:22,246 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-01-19 11:57:22,259 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 53 events. 1/53 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 3/55 useless extension candidates. Maximal degree in co-relation 70. Up to 8 conditions per place. [2022-01-19 11:57:22,259 INFO L132 encePairwiseOnDemand]: 67/71 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2022-01-19 11:57:22,259 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 49 transitions, 157 flow [2022-01-19 11:57:22,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 11:57:22,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 11:57:22,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 252 transitions. [2022-01-19 11:57:22,261 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7098591549295775 [2022-01-19 11:57:22,261 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 252 transitions. [2022-01-19 11:57:22,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 252 transitions. [2022-01-19 11:57:22,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:57:22,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 252 transitions. [2022-01-19 11:57:22,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 50.4) internal successors, (252), 5 states have internal predecessors, (252), 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) [2022-01-19 11:57:22,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 71.0) internal successors, (426), 6 states have internal predecessors, (426), 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) [2022-01-19 11:57:22,263 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 71.0) internal successors, (426), 6 states have internal predecessors, (426), 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) [2022-01-19 11:57:22,263 INFO L186 Difference]: Start difference. First operand has 66 places, 59 transitions, 146 flow. Second operand 5 states and 252 transitions. [2022-01-19 11:57:22,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 49 transitions, 157 flow [2022-01-19 11:57:22,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 49 transitions, 146 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-19 11:57:22,264 INFO L242 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2022-01-19 11:57:22,264 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2022-01-19 11:57:22,265 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, -5 predicate places. [2022-01-19 11:57:22,265 INFO L470 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2022-01-19 11:57:22,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 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) [2022-01-19 11:57:22,267 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-19 11:57:22,267 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-19 11:57:22,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 11:57:22,270 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-19 11:57:22,271 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 11:57:22,271 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 11:57:22,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 11:57:22 BasicIcfg [2022-01-19 11:57:22,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 11:57:22,281 INFO L158 Benchmark]: Toolchain (without parser) took 1507.63ms. Allocated memory is still 394.3MB. Free memory was 339.7MB in the beginning and 268.6MB in the end (delta: 71.1MB). Peak memory consumption was 70.8MB. Max. memory is 16.0GB. [2022-01-19 11:57:22,282 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 394.3MB. Free memory is still 358.5MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 11:57:22,284 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.22ms. Allocated memory is still 394.3MB. Free memory was 339.5MB in the beginning and 358.8MB in the end (delta: -19.3MB). Peak memory consumption was 18.4MB. Max. memory is 16.0GB. [2022-01-19 11:57:22,286 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.63ms. Allocated memory is still 394.3MB. Free memory was 358.8MB in the beginning and 356.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 11:57:22,287 INFO L158 Benchmark]: Boogie Preprocessor took 12.83ms. Allocated memory is still 394.3MB. Free memory was 356.7MB in the beginning and 354.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 11:57:22,287 INFO L158 Benchmark]: RCFGBuilder took 306.70ms. Allocated memory is still 394.3MB. Free memory was 354.6MB in the beginning and 343.1MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-19 11:57:22,287 INFO L158 Benchmark]: TraceAbstraction took 822.51ms. Allocated memory is still 394.3MB. Free memory was 342.0MB in the beginning and 268.6MB in the end (delta: 73.4MB). Peak memory consumption was 73.4MB. Max. memory is 16.0GB. [2022-01-19 11:57:22,295 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 394.3MB. Free memory is still 358.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 325.22ms. Allocated memory is still 394.3MB. Free memory was 339.5MB in the beginning and 358.8MB in the end (delta: -19.3MB). Peak memory consumption was 18.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 29.63ms. Allocated memory is still 394.3MB. Free memory was 358.8MB in the beginning and 356.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 12.83ms. Allocated memory is still 394.3MB. Free memory was 356.7MB in the beginning and 354.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 306.70ms. Allocated memory is still 394.3MB. Free memory was 354.6MB in the beginning and 343.1MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 822.51ms. Allocated memory is still 394.3MB. Free memory was 342.0MB in the beginning and 268.6MB in the end (delta: 73.4MB). Peak memory consumption was 73.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: 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, 83 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: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 20 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred in iteration=2, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 157 NumberOfCodeBlocks, 157 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 346 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! [2022-01-19 11:57:22,322 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...