/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/14b-subsequent-blocks.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 23:11:28,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 23:11:28,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 23:11:28,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-09 23:11:28,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-09 23:11:28,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-09 23:11:28,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-09 23:11:28,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-09 23:11:28,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-09 23:11:28,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-09 23:11:28,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-09 23:11:28,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-09 23:11:28,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-09 23:11:28,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-09 23:11:28,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-09 23:11:28,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-09 23:11:28,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-09 23:11:28,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-09 23:11:28,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-09 23:11:28,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-09 23:11:28,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-09 23:11:28,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-09 23:11:28,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-09 23:11:28,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-09 23:11:28,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-09 23:11:28,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-09 23:11:28,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-09 23:11:28,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-09 23:11:28,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-09 23:11:28,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-09 23:11:28,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-09 23:11:28,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-09 23:11:28,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-09 23:11:28,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 23:11:28,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 23:11:28,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 23:11:28,585 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.epf [2022-02-09 23:11:28,613 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 23:11:28,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 23:11:28,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 23:11:28,614 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 23:11:28,614 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 23:11:28,614 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 23:11:28,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 23:11:28,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 23:11:28,615 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 23:11:28,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 23:11:28,615 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 23:11:28,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 23:11:28,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 23:11:28,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 23:11:28,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 23:11:28,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 23:11:28,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 23:11:28,615 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 23:11:28,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 23:11:28,616 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 23:11:28,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 23:11:28,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 23:11:28,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 23:11:28,616 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 23:11:28,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 23:11:28,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 23:11:28,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 23:11:28,616 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-09 23:11:28,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 23:11:28,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 23:11:28,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 23:11:28,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 23:11:28,617 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 23:11:28,617 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 23:11:28,617 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 23:11:28,617 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-09 23:11:28,617 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 23:11:28,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 23:11:28,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 23:11:28,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 23:11:28,820 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-09 23:11:28,822 INFO L275 PluginConnector]: CDTParser initialized [2022-02-09 23:11:28,823 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/14b-subsequent-blocks.c [2022-02-09 23:11:28,876 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/998a33600/48594f75b9874ba4b9ae3d0b1930f16e/FLAG6fea90f9b [2022-02-09 23:11:29,225 INFO L306 CDTParser]: Found 1 translation units. [2022-02-09 23:11:29,225 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/14b-subsequent-blocks.c [2022-02-09 23:11:29,226 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-09 23:11:29,246 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/998a33600/48594f75b9874ba4b9ae3d0b1930f16e/FLAG6fea90f9b [2022-02-09 23:11:29,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/998a33600/48594f75b9874ba4b9ae3d0b1930f16e [2022-02-09 23:11:29,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 23:11:29,257 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-09 23:11:29,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-09 23:11:29,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-09 23:11:29,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-09 23:11:29,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 11:11:29" (1/1) ... [2022-02-09 23:11:29,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45d3bc8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:11:29, skipping insertion in model container [2022-02-09 23:11:29,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 11:11:29" (1/1) ... [2022-02-09 23:11:29,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-09 23:11:29,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-09 23:11:29,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 23:11:29,405 INFO L203 MainTranslator]: Completed pre-run [2022-02-09 23:11:29,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 23:11:29,420 INFO L208 MainTranslator]: Completed translation [2022-02-09 23:11:29,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:11:29 WrapperNode [2022-02-09 23:11:29,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-09 23:11:29,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 23:11:29,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 23:11:29,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 23:11:29,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:11:29" (1/1) ... [2022-02-09 23:11:29,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:11:29" (1/1) ... [2022-02-09 23:11:29,443 INFO L137 Inliner]: procedures = 10, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2022-02-09 23:11:29,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 23:11:29,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 23:11:29,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 23:11:29,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 23:11:29,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:11:29" (1/1) ... [2022-02-09 23:11:29,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:11:29" (1/1) ... [2022-02-09 23:11:29,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:11:29" (1/1) ... [2022-02-09 23:11:29,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:11:29" (1/1) ... [2022-02-09 23:11:29,458 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:11:29" (1/1) ... [2022-02-09 23:11:29,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:11:29" (1/1) ... [2022-02-09 23:11:29,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:11:29" (1/1) ... [2022-02-09 23:11:29,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 23:11:29,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 23:11:29,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 23:11:29,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 23:11:29,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:11:29" (1/1) ... [2022-02-09 23:11:29,473 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 23:11:29,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:11:29,488 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) [2022-02-09 23:11:29,500 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 [2022-02-09 23:11:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-09 23:11:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-09 23:11:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-09 23:11:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-02-09 23:11:29,528 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-02-09 23:11:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 23:11:29,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 23:11:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-09 23:11:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-09 23:11:29,529 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 23:11:29,574 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 23:11:29,575 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 23:11:29,634 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 23:11:29,647 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 23:11:29,647 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-09 23:11:29,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:11:29 BoogieIcfgContainer [2022-02-09 23:11:29,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 23:11:29,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 23:11:29,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 23:11:29,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 23:11:29,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 11:11:29" (1/3) ... [2022-02-09 23:11:29,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4369e7a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 11:11:29, skipping insertion in model container [2022-02-09 23:11:29,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:11:29" (2/3) ... [2022-02-09 23:11:29,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4369e7a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 11:11:29, skipping insertion in model container [2022-02-09 23:11:29,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:11:29" (3/3) ... [2022-02-09 23:11:29,654 INFO L111 eAbstractionObserver]: Analyzing ICFG 14b-subsequent-blocks.c [2022-02-09 23:11:29,657 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 23:11:29,657 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 23:11:29,657 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 23:11:29,657 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 23:11:29,687 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 23:11:29,687 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 23:11:29,687 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 23:11:29,687 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 23:11:29,688 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 23:11:29,688 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 23:11:29,688 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 23:11:29,688 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 23:11:29,688 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 23:11:29,688 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 23:11:29,689 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 23:11:29,691 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 23:11:29,699 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 23:11:29,699 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 23:11:29,699 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 23:11:29,699 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 23:11:29,700 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-09 23:11:29,744 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 23:11:29,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:11:29,746 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) [2022-02-09 23:11:29,747 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 [2022-02-09 23:11:29,765 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 23:11:29,770 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 [2022-02-09 23:11:29,770 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-09 23:11:29,798 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 24 transitions and produced 25 states. [2022-02-09 23:11:29,799 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-09 23:11:29,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:11:29,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1133540566, now seen corresponding path program 1 times [2022-02-09 23:11:29,811 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:11:29,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616254077] [2022-02-09 23:11:29,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:11:29,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:11:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:11:30,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 23:11:30,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:11:30,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616254077] [2022-02-09 23:11:30,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616254077] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 23:11:30,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 23:11:30,002 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 23:11:30,003 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291249341] [2022-02-09 23:11:30,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 23:11:30,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 23:11:30,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:11:30,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 23:11:30,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-09 23:11:30,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:11:30,031 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:11:30,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 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) [2022-02-09 23:11:30,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:11:30,069 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 28 transitions and produced 28 states. [2022-02-09 23:11:30,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 23:11:30,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 23:11:30,071 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-09 23:11:30,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:11:30,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1589196619, now seen corresponding path program 1 times [2022-02-09 23:11:30,074 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:11:30,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067617964] [2022-02-09 23:11:30,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:11:30,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:11:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:11:30,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 23:11:30,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:11:30,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067617964] [2022-02-09 23:11:30,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067617964] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 23:11:30,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 23:11:30,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 23:11:30,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181798209] [2022-02-09 23:11:30,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 23:11:30,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 23:11:30,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:11:30,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 23:11:30,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 23:11:30,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:11:30,134 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:11:30,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-02-09 23:11:30,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 23:11:30,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:11:30,167 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 37 transitions and produced 34 states. [2022-02-09 23:11:30,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 23:11:30,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 23:11:30,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 23:11:30,169 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-09 23:11:30,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:11:30,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1588838569, now seen corresponding path program 2 times [2022-02-09 23:11:30,169 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:11:30,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060682186] [2022-02-09 23:11:30,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:11:30,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:11:30,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 23:11:30,192 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-09 23:11:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 23:11:30,229 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-09 23:11:30,230 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-09 23:11:30,233 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-02-09 23:11:30,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-09 23:11:30,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-09 23:11:30,241 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1] [2022-02-09 23:11:30,244 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-09 23:11:30,244 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 23:11:30,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 11:11:30 BasicIcfg [2022-02-09 23:11:30,259 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 23:11:30,260 INFO L158 Benchmark]: Toolchain (without parser) took 1002.29ms. Allocated memory is still 187.7MB. Free memory was 138.7MB in the beginning and 119.5MB in the end (delta: 19.3MB). Peak memory consumption was 19.6MB. Max. memory is 8.0GB. [2022-02-09 23:11:30,260 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 187.7MB. Free memory is still 156.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 23:11:30,260 INFO L158 Benchmark]: CACSL2BoogieTranslator took 160.48ms. Allocated memory is still 187.7MB. Free memory was 138.5MB in the beginning and 163.0MB in the end (delta: -24.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-09 23:11:30,261 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.53ms. Allocated memory is still 187.7MB. Free memory was 163.0MB in the beginning and 161.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 23:11:30,261 INFO L158 Benchmark]: Boogie Preprocessor took 18.66ms. Allocated memory is still 187.7MB. Free memory was 161.9MB in the beginning and 160.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 23:11:30,261 INFO L158 Benchmark]: RCFGBuilder took 183.50ms. Allocated memory is still 187.7MB. Free memory was 160.9MB in the beginning and 150.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-09 23:11:30,262 INFO L158 Benchmark]: TraceAbstraction took 609.89ms. Allocated memory is still 187.7MB. Free memory was 150.4MB in the beginning and 119.5MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2022-02-09 23:11:30,264 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 187.7MB. Free memory is still 156.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 160.48ms. Allocated memory is still 187.7MB. Free memory was 138.5MB in the beginning and 163.0MB in the end (delta: -24.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.53ms. Allocated memory is still 187.7MB. Free memory was 163.0MB in the beginning and 161.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.66ms. Allocated memory is still 187.7MB. Free memory was 161.9MB in the beginning and 160.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 183.50ms. Allocated memory is still 187.7MB. Free memory was 160.9MB in the beginning and 150.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 609.89ms. Allocated memory is still 187.7MB. Free memory was 150.4MB in the beginning and 119.5MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. 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: 35]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int x = -1; VAL [x=-1] [L23] 0 pthread_t threadId; VAL [threadId={2:0}, x=-1] [L24] 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] [L27] 0 x = 1 [L28] 0 x = x + 1 VAL [arg={0:0}, threadId={2:0}, x=2] [L18] 1 x = 0 VAL [arg={0:0}, arg={0:0}, x=0] [L31] 0 x = x + 1 [L32] 0 x = x + 1 VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=2] [L35] 0 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=2] - UnprovableResult [Line: 24]: 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, 37 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 44 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! [2022-02-09 23:11:30,287 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 [2022-02-09 23:11:30,501 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...