/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-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/09b-return-after-end.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 05:44:40,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 05:44:40,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 05:44:40,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 05:44:40,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 05:44:40,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 05:44:40,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 05:44:40,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 05:44:40,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 05:44:40,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 05:44:40,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 05:44:40,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 05:44:40,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 05:44:40,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 05:44:40,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 05:44:40,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 05:44:40,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 05:44:40,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 05:44:40,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 05:44:40,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 05:44:40,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 05:44:40,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 05:44:40,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 05:44:40,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 05:44:40,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 05:44:40,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-16 05:44:40,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-16 05:44:40,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-16 05:44:40,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-16 05:44:40,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-16 05:44:40,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-16 05:44:40,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-16 05:44:40,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-16 05:44:40,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 05:44:40,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 05:44:40,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 05:44:40,468 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-NoForkJoinOpt-wrwc.epf [2022-03-16 05:44:40,506 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 05:44:40,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 05:44:40,507 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 05:44:40,507 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 05:44:40,508 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 05:44:40,509 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 05:44:40,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 05:44:40,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 05:44:40,509 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 05:44:40,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 05:44:40,511 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 05:44:40,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 05:44:40,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 05:44:40,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 05:44:40,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 05:44:40,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 05:44:40,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 05:44:40,511 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 05:44:40,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 05:44:40,512 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 05:44:40,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 05:44:40,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 05:44:40,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 05:44:40,512 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 05:44:40,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 05:44:40,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 05:44:40,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 05:44:40,513 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 05:44:40,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 05:44:40,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 05:44:40,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 05:44:40,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 05:44:40,513 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 05:44:40,514 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 05:44:40,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 05:44:40,514 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 05:44:40,514 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-16 05:44:40,514 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 05:44:40,514 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 05:44:40,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 05:44:40,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 05:44:40,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 05:44:40,821 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-16 05:44:40,822 INFO L275 PluginConnector]: CDTParser initialized [2022-03-16 05:44:40,823 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/09b-return-after-end.c [2022-03-16 05:44:40,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9993b9989/7dd3751b483f4fbab6d7866838cd2f3f/FLAG181b586cc [2022-03-16 05:44:41,372 INFO L306 CDTParser]: Found 1 translation units. [2022-03-16 05:44:41,373 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/09b-return-after-end.c [2022-03-16 05:44:41,373 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-16 05:44:41,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9993b9989/7dd3751b483f4fbab6d7866838cd2f3f/FLAG181b586cc [2022-03-16 05:44:41,867 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9993b9989/7dd3751b483f4fbab6d7866838cd2f3f [2022-03-16 05:44:41,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 05:44:41,873 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-16 05:44:41,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-16 05:44:41,875 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-16 05:44:41,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-16 05:44:41,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 05:44:41" (1/1) ... [2022-03-16 05:44:41,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@852bdd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:44:41, skipping insertion in model container [2022-03-16 05:44:41,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 05:44:41" (1/1) ... [2022-03-16 05:44:41,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-16 05:44:41,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-16 05:44:42,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-16 05:44:42,063 INFO L203 MainTranslator]: Completed pre-run [2022-03-16 05:44:42,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-16 05:44:42,086 INFO L208 MainTranslator]: Completed translation [2022-03-16 05:44:42,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:44:42 WrapperNode [2022-03-16 05:44:42,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-16 05:44:42,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 05:44:42,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 05:44:42,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 05:44:42,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:44:42" (1/1) ... [2022-03-16 05:44:42,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:44:42" (1/1) ... [2022-03-16 05:44:42,118 INFO L137 Inliner]: procedures = 10, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-03-16 05:44:42,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 05:44:42,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 05:44:42,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 05:44:42,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 05:44:42,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:44:42" (1/1) ... [2022-03-16 05:44:42,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:44:42" (1/1) ... [2022-03-16 05:44:42,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:44:42" (1/1) ... [2022-03-16 05:44:42,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:44:42" (1/1) ... [2022-03-16 05:44:42,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:44:42" (1/1) ... [2022-03-16 05:44:42,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:44:42" (1/1) ... [2022-03-16 05:44:42,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:44:42" (1/1) ... [2022-03-16 05:44:42,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 05:44:42,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 05:44:42,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 05:44:42,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 05:44:42,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:44:42" (1/1) ... [2022-03-16 05:44:42,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 05:44:42,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 05:44:42,170 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) [2022-03-16 05:44:42,179 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 [2022-03-16 05:44:42,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-16 05:44:42,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-16 05:44:42,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-16 05:44:42,219 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-03-16 05:44:42,219 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-03-16 05:44:42,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 05:44:42,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 05:44:42,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-16 05:44:42,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-16 05:44:42,221 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 05:44:42,294 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 05:44:42,295 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 05:44:42,447 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 05:44:42,456 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 05:44:42,457 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 05:44:42,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 05:44:42 BoogieIcfgContainer [2022-03-16 05:44:42,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 05:44:42,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 05:44:42,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 05:44:42,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 05:44:42,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 05:44:41" (1/3) ... [2022-03-16 05:44:42,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43968b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 05:44:42, skipping insertion in model container [2022-03-16 05:44:42,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:44:42" (2/3) ... [2022-03-16 05:44:42,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43968b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 05:44:42, skipping insertion in model container [2022-03-16 05:44:42,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 05:44:42" (3/3) ... [2022-03-16 05:44:42,485 INFO L111 eAbstractionObserver]: Analyzing ICFG 09b-return-after-end.c [2022-03-16 05:44:42,498 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 05:44:42,499 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 05:44:42,499 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 05:44:42,499 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 05:44:42,544 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:44:42,544 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:44:42,544 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:44:42,544 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:44:42,545 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:44:42,545 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:44:42,545 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:44:42,545 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:44:42,546 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:44:42,546 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:44:42,547 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:44:42,547 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:44:42,547 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:44:42,547 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:44:42,547 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:44:42,547 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:44:42,551 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:44:42,551 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:44:42,551 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:44:42,551 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:44:42,552 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-16 05:44:42,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 05:44:42,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 05:44:42,606 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) [2022-03-16 05:44:42,616 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 [2022-03-16 05:44:42,649 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 05:44:42,655 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=false, mMcrOverapproximateWrwc=false [2022-03-16 05:44:42,656 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-16 05:44:42,745 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 23 transitions and produced 24 states. [2022-03-16 05:44:42,749 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-16 05:44:42,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 05:44:42,757 INFO L85 PathProgramCache]: Analyzing trace with hash -537340688, now seen corresponding path program 1 times [2022-03-16 05:44:42,765 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 05:44:42,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247068054] [2022-03-16 05:44:42,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 05:44:42,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 05:44:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 05:44:42,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:44:42,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 05:44:42,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247068054] [2022-03-16 05:44:42,965 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247068054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 05:44:42,966 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 05:44:42,966 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-16 05:44:42,968 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901951737] [2022-03-16 05:44:42,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 05:44:42,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-16 05:44:42,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 05:44:42,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-16 05:44:43,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-16 05:44:43,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:44:43,003 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 05:44:43,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-03-16 05:44:43,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:44:43,062 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 30 transitions and produced 29 states. [2022-03-16 05:44:43,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 05:44:43,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-16 05:44:43,063 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-16 05:44:43,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 05:44:43,068 INFO L85 PathProgramCache]: Analyzing trace with hash -572955552, now seen corresponding path program 1 times [2022-03-16 05:44:43,068 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 05:44:43,069 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821349466] [2022-03-16 05:44:43,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 05:44:43,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 05:44:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 05:44:43,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:44:43,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 05:44:43,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821349466] [2022-03-16 05:44:43,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821349466] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 05:44:43,113 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 05:44:43,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-16 05:44:43,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900789861] [2022-03-16 05:44:43,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 05:44:43,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-16 05:44:43,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 05:44:43,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-16 05:44:43,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-16 05:44:43,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:44:43,116 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 05:44:43,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-03-16 05:44:43,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 05:44:43,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:44:43,182 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 40 transitions and produced 37 states. [2022-03-16 05:44:43,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 05:44:43,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 05:44:43,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-16 05:44:43,184 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-16 05:44:43,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 05:44:43,184 INFO L85 PathProgramCache]: Analyzing trace with hash -568313922, now seen corresponding path program 2 times [2022-03-16 05:44:43,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 05:44:43,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850509384] [2022-03-16 05:44:43,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 05:44:43,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 05:44:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-16 05:44:43,203 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-16 05:44:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-16 05:44:43,228 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-16 05:44:43,228 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-16 05:44:43,229 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-03-16 05:44:43,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-03-16 05:44:43,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-16 05:44:43,237 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1] [2022-03-16 05:44:43,241 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 05:44:43,241 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 05:44:43,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 05:44:43 BasicIcfg [2022-03-16 05:44:43,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 05:44:43,262 INFO L158 Benchmark]: Toolchain (without parser) took 1389.37ms. Allocated memory was 187.7MB in the beginning and 228.6MB in the end (delta: 40.9MB). Free memory was 135.3MB in the beginning and 188.6MB in the end (delta: -53.3MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 05:44:43,263 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 187.7MB. Free memory was 153.6MB in the beginning and 153.5MB in the end (delta: 89.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 05:44:43,263 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.88ms. Allocated memory is still 187.7MB. Free memory was 135.0MB in the beginning and 161.3MB in the end (delta: -26.3MB). Peak memory consumption was 10.3MB. Max. memory is 8.0GB. [2022-03-16 05:44:43,264 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.58ms. Allocated memory is still 187.7MB. Free memory was 161.3MB in the beginning and 160.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 05:44:43,264 INFO L158 Benchmark]: Boogie Preprocessor took 19.95ms. Allocated memory is still 187.7MB. Free memory was 160.0MB in the beginning and 158.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 05:44:43,265 INFO L158 Benchmark]: RCFGBuilder took 323.21ms. Allocated memory is still 187.7MB. Free memory was 158.9MB in the beginning and 149.5MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-16 05:44:43,265 INFO L158 Benchmark]: TraceAbstraction took 795.99ms. Allocated memory was 187.7MB in the beginning and 228.6MB in the end (delta: 40.9MB). Free memory was 149.1MB in the beginning and 188.6MB in the end (delta: -39.5MB). Peak memory consumption was 1.8MB. Max. memory is 8.0GB. [2022-03-16 05:44:43,268 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 187.7MB. Free memory was 153.6MB in the beginning and 153.5MB in the end (delta: 89.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 211.88ms. Allocated memory is still 187.7MB. Free memory was 135.0MB in the beginning and 161.3MB in the end (delta: -26.3MB). Peak memory consumption was 10.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.58ms. Allocated memory is still 187.7MB. Free memory was 161.3MB in the beginning and 160.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.95ms. Allocated memory is still 187.7MB. Free memory was 160.0MB in the beginning and 158.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 323.21ms. Allocated memory is still 187.7MB. Free memory was 158.9MB in the beginning and 149.5MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 795.99ms. Allocated memory was 187.7MB in the beginning and 228.6MB in the end (delta: 40.9MB). Free memory was 149.1MB in the beginning and 188.6MB in the end (delta: -39.5MB). Peak memory consumption was 1.8MB. 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: [L15] 0 int x = 1; VAL [x=1] [L16] 0 int y = 1; VAL [x=1, y=1] [L31] 0 pthread_t threadId; VAL [threadId={2:0}, x=1, y=1] [L32] FCALL, FORK 0 pthread_create(&threadId, NULL, &foo, NULL) VAL [arg={0:0}, pthread_create(&threadId, NULL, &foo, NULL)=-1, threadId={2:0}, x=1, y=1] [L20] COND TRUE 1 \read(y) VAL [arg={0:0}, arg={0:0}, x=1, y=1] [L34] 0 y = 0 VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=1, y=0] [L22] 1 x = y VAL [arg={0:0}, arg={0:0}, x=0, y=0] [L36] 0 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=0, y=0] - UnprovableResult [Line: 32]: 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 3 procedures, 41 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 2, 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: 6, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 71 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! [2022-03-16 05:44:43,305 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 [2022-03-16 05:44:43,509 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...