/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_67-pthread_cond_wait_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 11:57:31,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 11:57:31,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 11:57:31,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 11:57:31,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 11:57:31,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 11:57:31,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 11:57:31,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 11:57:31,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 11:57:31,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 11:57:31,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 11:57:31,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 11:57:31,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 11:57:31,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 11:57:31,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 11:57:31,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 11:57:31,517 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 11:57:31,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 11:57:31,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 11:57:31,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 11:57:31,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 11:57:31,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 11:57:31,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 11:57:31,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 11:57:31,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 11:57:31,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 11:57:31,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 11:57:31,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 11:57:31,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 11:57:31,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 11:57:31,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 11:57:31,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 11:57:31,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 11:57:31,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 11:57:31,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 11:57:31,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 11:57:31,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 11:57:31,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 11:57:31,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 11:57:31,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 11:57:31,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 11:57:31,534 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 11:57:31,552 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 11:57:31,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 11:57:31,553 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 11:57:31,553 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 11:57:31,554 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 11:57:31,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 11:57:31,554 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 11:57:31,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 11:57:31,554 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 11:57:31,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 11:57:31,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 11:57:31,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 11:57:31,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 11:57:31,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 11:57:31,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 11:57:31,556 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 11:57:31,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 11:57:31,556 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 11:57:31,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 11:57:31,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 11:57:31,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 11:57:31,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 11:57:31,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 11:57:31,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 11:57:31,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 11:57:31,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 11:57:31,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 11:57:31,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 11:57:31,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 11:57:31,558 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 11:57:31,558 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 11:57:31,558 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=AFTER [2022-01-19 11:57:31,559 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 11:57:31,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 11:57:31,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 11:57:31,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 11:57:31,752 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 11:57:31,755 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 11:57:31,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2022-01-19 11:57:31,826 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/285739707/31d356527d9047d7bf9924b4d99adf17/FLAG6a8a50cdd [2022-01-19 11:57:32,303 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 11:57:32,304 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2022-01-19 11:57:32,330 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/285739707/31d356527d9047d7bf9924b4d99adf17/FLAG6a8a50cdd [2022-01-19 11:57:32,616 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/285739707/31d356527d9047d7bf9924b4d99adf17 [2022-01-19 11:57:32,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 11:57:32,619 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 11:57:32,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 11:57:32,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 11:57:32,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 11:57:32,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 11:57:32" (1/1) ... [2022-01-19 11:57:32,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d311eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:32, skipping insertion in model container [2022-01-19 11:57:32,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 11:57:32" (1/1) ... [2022-01-19 11:57:32,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 11:57:32,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 11:57:32,830 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_67-pthread_cond_wait_true.i[1094,1107] [2022-01-19 11:57:33,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 11:57:33,082 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 11:57:33,089 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_67-pthread_cond_wait_true.i[1094,1107] [2022-01-19 11:57:33,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 11:57:33,178 INFO L208 MainTranslator]: Completed translation [2022-01-19 11:57:33,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:33 WrapperNode [2022-01-19 11:57:33,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 11:57:33,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 11:57:33,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 11:57:33,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 11:57:33,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:33" (1/1) ... [2022-01-19 11:57:33,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:33" (1/1) ... [2022-01-19 11:57:33,243 INFO L137 Inliner]: procedures = 354, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2022-01-19 11:57:33,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 11:57:33,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 11:57:33,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 11:57:33,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 11:57:33,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:33" (1/1) ... [2022-01-19 11:57:33,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:33" (1/1) ... [2022-01-19 11:57:33,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:33" (1/1) ... [2022-01-19 11:57:33,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:33" (1/1) ... [2022-01-19 11:57:33,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:33" (1/1) ... [2022-01-19 11:57:33,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:33" (1/1) ... [2022-01-19 11:57:33,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:33" (1/1) ... [2022-01-19 11:57:33,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 11:57:33,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 11:57:33,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 11:57:33,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 11:57:33,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:33" (1/1) ... [2022-01-19 11:57:33,308 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 11:57:33,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 11:57:33,331 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 11:57:33,333 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 11:57:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-01-19 11:57:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-01-19 11:57:33,356 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-01-19 11:57:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-01-19 11:57:33,356 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-01-19 11:57:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 11:57:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 11:57:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 11:57:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 11:57:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-19 11:57:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 11:57:33,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 11:57:33,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 11:57:33,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 11:57:33,358 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 11:57:33,618 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 11:57:33,620 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 11:57:33,750 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 11:57:33,756 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 11:57:33,757 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 11:57:33,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 11:57:33 BoogieIcfgContainer [2022-01-19 11:57:33,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 11:57:33,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 11:57:33,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 11:57:33,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 11:57:33,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 11:57:32" (1/3) ... [2022-01-19 11:57:33,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391a0c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 11:57:33, skipping insertion in model container [2022-01-19 11:57:33,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:33" (2/3) ... [2022-01-19 11:57:33,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391a0c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 11:57:33, skipping insertion in model container [2022-01-19 11:57:33,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 11:57:33" (3/3) ... [2022-01-19 11:57:33,766 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_true.i [2022-01-19 11:57:33,770 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 11:57:33,771 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 11:57:33,771 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 11:57:33,809 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#in~ptr#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,809 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#in~ptr#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,809 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_~ptr#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,809 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_~ptr#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,809 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#in~ptr#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,809 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#in~ptr#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,810 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_~ptr#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,810 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_~ptr#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,810 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,810 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,810 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,811 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,811 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,811 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,811 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,812 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,812 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,812 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,812 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,812 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,812 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,813 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,813 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,813 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,813 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,813 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,813 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,814 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,814 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,814 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,814 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,814 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,815 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,815 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,815 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#in~ptr.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,815 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#in~ptr.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,815 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork0_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,815 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork0_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,816 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#in~ptr.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,816 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#in~ptr.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,816 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork0_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,816 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork0_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,816 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,816 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,817 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,817 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,817 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,817 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,817 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,817 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,820 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork0_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,820 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,820 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork0_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,820 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,821 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,822 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,822 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,823 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,823 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,823 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,823 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,823 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,823 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_~ptr#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,823 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_~ptr#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:33,826 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-19 11:57:33,860 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 11:57:33,866 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 11:57:33,866 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 11:57:33,875 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 95 transitions, 206 flow [2022-01-19 11:57:33,907 INFO L129 PetriNetUnfolder]: 1/93 cut-off events. [2022-01-19 11:57:33,907 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 11:57:33,910 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 93 events. 1/93 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2022-01-19 11:57:33,910 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 95 transitions, 206 flow [2022-01-19 11:57:33,914 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 71 transitions, 148 flow [2022-01-19 11:57:33,928 INFO L129 PetriNetUnfolder]: 0/68 cut-off events. [2022-01-19 11:57:33,928 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 11:57:33,928 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:57:33,929 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] [2022-01-19 11:57:33,929 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, f1Err0ASSERT_VIOLATIONERROR_FUNCTION, f1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 11:57:33,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:57:33,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1366006769, now seen corresponding path program 1 times [2022-01-19 11:57:33,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:57:33,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265582009] [2022-01-19 11:57:33,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:57:33,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:57:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:57:34,274 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 11:57:34,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:57:34,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265582009] [2022-01-19 11:57:34,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265582009] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:57:34,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:57:34,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 11:57:34,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592735860] [2022-01-19 11:57:34,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:57:34,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 11:57:34,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:57:34,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 11:57:34,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 11:57:34,320 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 95 [2022-01-19 11:57:34,332 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 71 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 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 11:57:34,332 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:57:34,332 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 95 [2022-01-19 11:57:34,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:57:34,438 INFO L129 PetriNetUnfolder]: 6/114 cut-off events. [2022-01-19 11:57:34,438 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-01-19 11:57:34,439 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 114 events. 6/114 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 222 event pairs, 0 based on Foata normal form. 4/118 useless extension candidates. Maximal degree in co-relation 112. Up to 10 conditions per place. [2022-01-19 11:57:34,440 INFO L132 encePairwiseOnDemand]: 90/95 looper letters, 8 selfloop transitions, 2 changer transitions 10/82 dead transitions. [2022-01-19 11:57:34,440 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 82 transitions, 219 flow [2022-01-19 11:57:34,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 11:57:34,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 11:57:34,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 582 transitions. [2022-01-19 11:57:34,459 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8751879699248121 [2022-01-19 11:57:34,460 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 582 transitions. [2022-01-19 11:57:34,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 582 transitions. [2022-01-19 11:57:34,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:57:34,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 582 transitions. [2022-01-19 11:57:34,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 83.14285714285714) internal successors, (582), 7 states have internal predecessors, (582), 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 11:57:34,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 95.0) internal successors, (760), 8 states have internal predecessors, (760), 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 11:57:34,474 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 95.0) internal successors, (760), 8 states have internal predecessors, (760), 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 11:57:34,476 INFO L186 Difference]: Start difference. First operand has 78 places, 71 transitions, 148 flow. Second operand 7 states and 582 transitions. [2022-01-19 11:57:34,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 82 transitions, 219 flow [2022-01-19 11:57:34,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 82 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 11:57:34,482 INFO L242 Difference]: Finished difference. Result has 87 places, 71 transitions, 162 flow [2022-01-19 11:57:34,483 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=162, PETRI_PLACES=87, PETRI_TRANSITIONS=71} [2022-01-19 11:57:34,486 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 9 predicate places. [2022-01-19 11:57:34,486 INFO L470 AbstractCegarLoop]: Abstraction has has 87 places, 71 transitions, 162 flow [2022-01-19 11:57:34,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 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 11:57:34,487 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:57:34,487 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 11:57:34,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 11:57:34,488 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, f1Err0ASSERT_VIOLATIONERROR_FUNCTION, f1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 11:57:34,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:57:34,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1416224719, now seen corresponding path program 1 times [2022-01-19 11:57:34,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:57:34,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011670987] [2022-01-19 11:57:34,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:57:34,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:57:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:57:34,594 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 11:57:34,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:57:34,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011670987] [2022-01-19 11:57:34,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011670987] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:57:34,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:57:34,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 11:57:34,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958657650] [2022-01-19 11:57:34,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:57:34,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 11:57:34,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:57:34,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 11:57:34,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 11:57:34,598 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 95 [2022-01-19 11:57:34,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 71 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 11:57:34,598 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:57:34,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 95 [2022-01-19 11:57:34,598 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:57:34,636 INFO L129 PetriNetUnfolder]: 3/88 cut-off events. [2022-01-19 11:57:34,637 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 11:57:34,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 88 events. 3/88 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 87 event pairs, 1 based on Foata normal form. 4/90 useless extension candidates. Maximal degree in co-relation 123. Up to 13 conditions per place. [2022-01-19 11:57:34,639 INFO L132 encePairwiseOnDemand]: 90/95 looper letters, 9 selfloop transitions, 5 changer transitions 0/72 dead transitions. [2022-01-19 11:57:34,640 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 72 transitions, 194 flow [2022-01-19 11:57:34,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 11:57:34,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 11:57:34,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2022-01-19 11:57:34,641 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8701754385964913 [2022-01-19 11:57:34,641 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2022-01-19 11:57:34,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2022-01-19 11:57:34,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:57:34,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2022-01-19 11:57:34,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 11:57:34,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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 11:57:34,645 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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 11:57:34,645 INFO L186 Difference]: Start difference. First operand has 87 places, 71 transitions, 162 flow. Second operand 3 states and 248 transitions. [2022-01-19 11:57:34,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 72 transitions, 194 flow [2022-01-19 11:57:34,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 72 transitions, 184 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-01-19 11:57:34,651 INFO L242 Difference]: Finished difference. Result has 80 places, 71 transitions, 162 flow [2022-01-19 11:57:34,652 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=80, PETRI_TRANSITIONS=71} [2022-01-19 11:57:34,652 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 2 predicate places. [2022-01-19 11:57:34,652 INFO L470 AbstractCegarLoop]: Abstraction has has 80 places, 71 transitions, 162 flow [2022-01-19 11:57:34,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 11:57:34,653 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:57:34,653 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 11:57:34,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 11:57:34,653 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, f1Err0ASSERT_VIOLATIONERROR_FUNCTION, f1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 11:57:34,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:57:34,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1264517384, now seen corresponding path program 1 times [2022-01-19 11:57:34,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:57:34,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991960987] [2022-01-19 11:57:34,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:57:34,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:57:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 11:57:34,713 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 11:57:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 11:57:34,792 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 11:57:34,792 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 11:57:34,793 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-19 11:57:34,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-19 11:57:34,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-19 11:57:34,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-01-19 11:57:34,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 11:57:34,801 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-19 11:57:34,805 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 11:57:34,805 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 11:57:34,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 11:57:34 BasicIcfg [2022-01-19 11:57:34,866 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 11:57:34,867 INFO L158 Benchmark]: Toolchain (without parser) took 2248.23ms. Allocated memory is still 394.3MB. Free memory was 338.4MB in the beginning and 208.6MB in the end (delta: 129.8MB). Peak memory consumption was 127.1MB. Max. memory is 16.0GB. [2022-01-19 11:57:34,867 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 394.3MB. Free memory is still 357.3MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 11:57:34,868 INFO L158 Benchmark]: CACSL2BoogieTranslator took 558.70ms. Allocated memory is still 394.3MB. Free memory was 338.3MB in the beginning and 339.7MB in the end (delta: -1.4MB). Peak memory consumption was 16.0MB. Max. memory is 16.0GB. [2022-01-19 11:57:34,868 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.57ms. Allocated memory is still 394.3MB. Free memory was 339.7MB in the beginning and 337.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 11:57:34,869 INFO L158 Benchmark]: Boogie Preprocessor took 51.67ms. Allocated memory is still 394.3MB. Free memory was 337.6MB in the beginning and 334.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2022-01-19 11:57:34,869 INFO L158 Benchmark]: RCFGBuilder took 461.36ms. Allocated memory is still 394.3MB. Free memory was 334.4MB in the beginning and 317.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2022-01-19 11:57:34,870 INFO L158 Benchmark]: TraceAbstraction took 1107.27ms. Allocated memory is still 394.3MB. Free memory was 316.6MB in the beginning and 208.6MB in the end (delta: 108.0MB). Peak memory consumption was 109.1MB. Max. memory is 16.0GB. [2022-01-19 11:57:34,872 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 394.3MB. Free memory is still 357.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 558.70ms. Allocated memory is still 394.3MB. Free memory was 338.3MB in the beginning and 339.7MB in the end (delta: -1.4MB). Peak memory consumption was 16.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 64.57ms. Allocated memory is still 394.3MB. Free memory was 339.7MB in the beginning and 337.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 51.67ms. Allocated memory is still 394.3MB. Free memory was 337.6MB in the beginning and 334.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 461.36ms. Allocated memory is still 394.3MB. Free memory was 334.4MB in the beginning and 317.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 1107.27ms. Allocated memory is still 394.3MB. Free memory was 316.6MB in the beginning and 208.6MB in the end (delta: 108.0MB). Peak memory consumption was 109.1MB. 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 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1351] 0 int g; VAL [g=0] [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [g=0, mut={4:0}] [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; VAL [cond={5:0}, g=0, mut={4:0}] [L1373] 0 pthread_t t1; VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={5:0}, g=0, mut={4:0}, t1={7:0}] [L1374] 0 pthread_t t2; VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={5:0}, g=0, mut={4:0}, t1={7:0}, t2={6:0}] [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={5:0}, g=0, mut={4:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=-1, t1={7:0}, t2={6:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={5:0}, g=0, mut={4:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=0, ptr={0:0}, t1={7:0}, t2={6:0}] [L1356] 1 g = 1 VAL [cond={5:0}, g=1, mut={4:0}, ptr={0:0}, ptr={0:0}, ptr={0:0}, ptr={0:0}] [L1366] 2 g = 0 VAL [cond={5:0}, g=0, mut={4:0}, ptr={0:0}, ptr={0:0}] [L1358] CALL 1 __VERIFIER_assert(g == 1) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond={5:0}, cond=0, g=0, mut={4:0}, ptr={0:0}, ptr={0:0}] [L19] 1 reach_error() VAL [\old(cond)=0, cond={5:0}, cond=0, g=0, mut={4:0}, ptr={0:0}, ptr={0:0}] - UnprovableResult [Line: 1377]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1375]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 127 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.9s, 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, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 17 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=1, InterpolantAutomatonStates: 10, 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, 0.2s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 207 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate proved your program to be incorrect! [2022-01-19 11:57:34,906 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...