/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 22:05:18,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 22:05:18,500 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 22:05:18,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 22:05:18,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 22:05:18,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 22:05:18,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 22:05:18,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 22:05:18,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 22:05:18,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 22:05:18,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 22:05:18,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 22:05:18,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 22:05:18,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 22:05:18,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 22:05:18,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 22:05:18,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 22:05:18,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 22:05:18,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 22:05:18,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 22:05:18,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 22:05:18,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 22:05:18,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 22:05:18,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 22:05:18,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-19 22:05:18,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-19 22:05:18,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-19 22:05:18,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-19 22:05:18,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-19 22:05:18,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-19 22:05:18,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-19 22:05:18,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-19 22:05:18,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-19 22:05:18,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 22:05:18,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 22:05:18,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 22:05:18,592 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-MCRwithDepranks-Lazy-wrwc.epf [2022-02-19 22:05:18,605 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 22:05:18,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 22:05:18,606 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 22:05:18,606 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 22:05:18,606 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 22:05:18,607 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 22:05:18,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 22:05:18,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 22:05:18,607 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 22:05:18,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 22:05:18,607 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 22:05:18,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 22:05:18,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 22:05:18,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 22:05:18,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 22:05:18,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 22:05:18,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 22:05:18,608 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 22:05:18,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 22:05:18,608 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 22:05:18,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 22:05:18,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 22:05:18,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 22:05:18,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 22:05:18,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 22:05:18,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 22:05:18,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 22:05:18,609 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 22:05:18,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 22:05:18,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 22:05:18,609 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 22:05:18,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 22:05:18,609 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 22:05:18,609 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 22:05:18,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 22:05:18,610 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 22:05:18,610 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-02-19 22:05:18,610 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 22:05:18,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 22:05:18,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 22:05:18,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 22:05:18,798 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-19 22:05:18,799 INFO L275 PluginConnector]: CDTParser initialized [2022-02-19 22:05:18,800 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c [2022-02-19 22:05:18,865 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9358d908/db55d8cebae04effb9fbd71122bf3ef2/FLAG4aed109cb [2022-02-19 22:05:19,205 INFO L306 CDTParser]: Found 1 translation units. [2022-02-19 22:05:19,205 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c [2022-02-19 22:05:19,205 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-19 22:05:19,206 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-19 22:05:19,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9358d908/db55d8cebae04effb9fbd71122bf3ef2/FLAG4aed109cb [2022-02-19 22:05:19,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9358d908/db55d8cebae04effb9fbd71122bf3ef2 [2022-02-19 22:05:19,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 22:05:19,241 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-19 22:05:19,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-19 22:05:19,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-19 22:05:19,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-19 22:05:19,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 10:05:19" (1/1) ... [2022-02-19 22:05:19,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e1b4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:05:19, skipping insertion in model container [2022-02-19 22:05:19,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 10:05:19" (1/1) ... [2022-02-19 22:05:19,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-19 22:05:19,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-19 22:05:19,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-19 22:05:19,416 INFO L203 MainTranslator]: Completed pre-run [2022-02-19 22:05:19,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-19 22:05:19,432 INFO L208 MainTranslator]: Completed translation [2022-02-19 22:05:19,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:05:19 WrapperNode [2022-02-19 22:05:19,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-19 22:05:19,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 22:05:19,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 22:05:19,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 22:05:19,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:05:19" (1/1) ... [2022-02-19 22:05:19,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:05:19" (1/1) ... [2022-02-19 22:05:19,453 INFO L137 Inliner]: procedures = 9, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2022-02-19 22:05:19,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 22:05:19,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 22:05:19,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 22:05:19,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 22:05:19,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:05:19" (1/1) ... [2022-02-19 22:05:19,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:05:19" (1/1) ... [2022-02-19 22:05:19,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:05:19" (1/1) ... [2022-02-19 22:05:19,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:05:19" (1/1) ... [2022-02-19 22:05:19,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:05:19" (1/1) ... [2022-02-19 22:05:19,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:05:19" (1/1) ... [2022-02-19 22:05:19,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:05:19" (1/1) ... [2022-02-19 22:05:19,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 22:05:19,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 22:05:19,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 22:05:19,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 22:05:19,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:05:19" (1/1) ... [2022-02-19 22:05:19,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 22:05:19,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:05:19,493 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) [2022-02-19 22:05:19,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-19 22:05:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-19 22:05:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2022-02-19 22:05:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2022-02-19 22:05:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 22:05:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 22:05:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-19 22:05:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-19 22:05:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-19 22:05:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure inc [2022-02-19 22:05:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure inc [2022-02-19 22:05:19,519 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 22:05:19,575 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 22:05:19,577 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 22:05:19,688 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 22:05:19,693 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 22:05:19,693 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 22:05:19,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:05:19 BoogieIcfgContainer [2022-02-19 22:05:19,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 22:05:19,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 22:05:19,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 22:05:19,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 22:05:19,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 10:05:19" (1/3) ... [2022-02-19 22:05:19,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d0fe9f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 10:05:19, skipping insertion in model container [2022-02-19 22:05:19,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:05:19" (2/3) ... [2022-02-19 22:05:19,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d0fe9f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 10:05:19, skipping insertion in model container [2022-02-19 22:05:19,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:05:19" (3/3) ... [2022-02-19 22:05:19,716 INFO L111 eAbstractionObserver]: Analyzing ICFG ThreadIdTest1.c [2022-02-19 22:05:19,720 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 22:05:19,720 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 22:05:19,720 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 22:05:19,720 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 22:05:19,763 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,763 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,764 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,764 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,764 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,764 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,764 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,764 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,765 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,765 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,765 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,765 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,765 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,766 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,766 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,766 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,766 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,766 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,766 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,767 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,767 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,767 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,767 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,767 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,767 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,767 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,768 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,768 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,768 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,768 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,768 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,769 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,769 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,769 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,769 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,769 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,772 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,772 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,772 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,772 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,772 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,774 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,774 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,775 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,775 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,779 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:05:19,800 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-19 22:05:19,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 22:05:19,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:05:19,848 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-19 22:05:19,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-19 22:05:19,869 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 22:05:19,873 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=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=false [2022-02-19 22:05:19,874 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-19 22:05:19,939 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 58 transitions and produced 59 states. [2022-02-19 22:05:19,941 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:05:19,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:05:19,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1461857850, now seen corresponding path program 1 times [2022-02-19 22:05:19,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:05:19,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650967667] [2022-02-19 22:05:19,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:05:19,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:05:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:05:20,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:05:20,151 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:05:20,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650967667] [2022-02-19 22:05:20,152 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650967667] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 22:05:20,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 22:05:20,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-19 22:05:20,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131634472] [2022-02-19 22:05:20,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 22:05:20,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 22:05:20,161 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:05:20,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 22:05:20,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 22:05:20,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:05:20,186 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:05:20,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 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) [2022-02-19 22:05:20,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:05:20,308 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 237 transitions and produced 166 states. [2022-02-19 22:05:20,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:05:20,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-19 22:05:20,310 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:05:20,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:05:20,311 INFO L85 PathProgramCache]: Analyzing trace with hash 791274224, now seen corresponding path program 1 times [2022-02-19 22:05:20,312 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:05:20,312 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218661622] [2022-02-19 22:05:20,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:05:20,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:05:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-19 22:05:20,362 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-19 22:05:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-19 22:05:20,412 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-19 22:05:20,412 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-19 22:05:20,413 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-02-19 22:05:20,415 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-19 22:05:20,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-19 22:05:20,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-19 22:05:20,425 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-19 22:05:20,429 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-19 22:05:20,429 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-19 22:05:20,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 10:05:20 BasicIcfg [2022-02-19 22:05:20,476 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-19 22:05:20,477 INFO L158 Benchmark]: Toolchain (without parser) took 1235.67ms. Allocated memory was 194.0MB in the beginning and 284.2MB in the end (delta: 90.2MB). Free memory was 135.1MB in the beginning and 184.7MB in the end (delta: -49.6MB). Peak memory consumption was 40.5MB. Max. memory is 8.0GB. [2022-02-19 22:05:20,477 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 194.0MB. Free memory is still 153.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 22:05:20,477 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.11ms. Allocated memory was 194.0MB in the beginning and 284.2MB in the end (delta: 90.2MB). Free memory was 134.9MB in the beginning and 254.5MB in the end (delta: -119.6MB). Peak memory consumption was 6.9MB. Max. memory is 8.0GB. [2022-02-19 22:05:20,478 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.63ms. Allocated memory is still 284.2MB. Free memory was 254.5MB in the beginning and 252.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-19 22:05:20,478 INFO L158 Benchmark]: Boogie Preprocessor took 10.71ms. Allocated memory is still 284.2MB. Free memory was 252.9MB in the beginning and 251.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 22:05:20,478 INFO L158 Benchmark]: RCFGBuilder took 229.41ms. Allocated memory is still 284.2MB. Free memory was 251.8MB in the beginning and 240.3MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-19 22:05:20,479 INFO L158 Benchmark]: TraceAbstraction took 765.16ms. Allocated memory is still 284.2MB. Free memory was 239.8MB in the beginning and 184.7MB in the end (delta: 55.1MB). Peak memory consumption was 55.6MB. Max. memory is 8.0GB. [2022-02-19 22:05:20,481 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 194.0MB. Free memory is still 153.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 191.11ms. Allocated memory was 194.0MB in the beginning and 284.2MB in the end (delta: 90.2MB). Free memory was 134.9MB in the beginning and 254.5MB in the end (delta: -119.6MB). Peak memory consumption was 6.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.63ms. Allocated memory is still 284.2MB. Free memory was 254.5MB in the beginning and 252.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.71ms. Allocated memory is still 284.2MB. Free memory was 252.9MB in the beginning and 251.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 229.41ms. Allocated memory is still 284.2MB. Free memory was 251.8MB in the beginning and 240.3MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 765.16ms. Allocated memory is still 284.2MB. Free memory was 239.8MB in the beginning and 184.7MB in the end (delta: 55.1MB). Peak memory consumption was 55.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - 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: 36]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 int x = 0; VAL [x=0] [L27] 0 pthread_t first_th_id; VAL [first_th_id={3:0}, x=0] [L28] 0 pthread_t second_th_id; VAL [first_th_id={3:0}, second_th_id={2:0}, x=0] [L30] FCALL, FORK 0 pthread_create(&first_th_id, NULL, inc, NULL) VAL [first_th_id={3:0}, n={0:0}, pthread_create(&first_th_id, NULL, inc, NULL)=-1, second_th_id={2:0}, x=0] [L31] FCALL, FORK 0 pthread_create(&second_th_id, NULL, dec, NULL) VAL [first_th_id={3:0}, n={0:0}, n={0:0}, pthread_create(&second_th_id, NULL, dec, NULL)=0, second_th_id={2:0}, x=0] [L33] 0 \read(first_th_id) VAL [\read(first_th_id)=-1, first_th_id={3:0}, n={0:0}, n={0:0}, second_th_id={2:0}, x=0] [L22] 2 x-- VAL [n={0:0}, n={0:0}, n={0:0}, x=0, x--=0] [L17] 1 x++ VAL [n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=1, x--=0] [L18] 1 return NULL; VAL [\result={0:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=1, x--=0] [L33] FCALL, JOIN 1 pthread_join(first_th_id, NULL) VAL [\read(first_th_id)=-1, \result={0:0}, first_th_id={3:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, second_th_id={2:0}, x=1, x--=0] [L34] 0 int y = x; VAL [\result={0:0}, first_th_id={3:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, second_th_id={2:0}, x=1, x--=0, y=1] [L22] 2 x-- VAL [\result={0:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=-1, x--=0] [L36] 0 CodeAnnotStmt[Assertion] VAL [\result={0:0}, first_th_id={3:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, second_th_id={2:0}, x=-1, x--=0, y=1] - UnprovableResult [Line: 31]: 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: 30]: 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, 68 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.1s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 41 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2022-02-19 22:05:20,511 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-02-19 22:05:20,726 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...