/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/11b-double-end.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 04:57:06,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 04:57:06,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 04:57:06,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 04:57:06,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 04:57:06,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 04:57:06,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 04:57:06,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 04:57:06,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 04:57:06,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 04:57:06,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 04:57:06,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 04:57:06,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 04:57:06,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 04:57:06,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 04:57:06,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 04:57:06,421 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 04:57:06,422 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 04:57:06,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 04:57:06,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 04:57:06,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 04:57:06,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 04:57:06,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 04:57:06,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 04:57:06,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 04:57:06,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 04:57:06,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 04:57:06,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 04:57:06,449 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.epf [2022-03-04 04:57:06,476 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 04:57:06,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 04:57:06,477 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 04:57:06,477 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 04:57:06,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 04:57:06,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 04:57:06,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 04:57:06,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 04:57:06,478 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 04:57:06,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 04:57:06,479 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 04:57:06,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 04:57:06,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 04:57:06,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 04:57:06,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 04:57:06,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 04:57:06,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 04:57:06,479 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 04:57:06,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 04:57:06,480 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 04:57:06,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 04:57:06,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 04:57:06,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 04:57:06,480 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 04:57:06,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 04:57:06,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 04:57:06,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 04:57:06,481 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 04:57:06,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 04:57:06,481 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 04:57:06,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 04:57:06,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 04:57:06,482 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 04:57:06,482 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 04:57:06,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 04:57:06,482 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 04:57:06,482 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 04:57:06,482 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 04:57:06,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 04:57:06,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 04:57:06,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 04:57:06,677 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-04 04:57:06,679 INFO L275 PluginConnector]: CDTParser initialized [2022-03-04 04:57:06,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/11b-double-end.c [2022-03-04 04:57:06,734 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c6ce4a60/1c8cca858a8244beaec38ecea85c88c0/FLAG119ccc4ae [2022-03-04 04:57:07,060 INFO L306 CDTParser]: Found 1 translation units. [2022-03-04 04:57:07,060 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/11b-double-end.c [2022-03-04 04:57:07,060 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-04 04:57:07,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c6ce4a60/1c8cca858a8244beaec38ecea85c88c0/FLAG119ccc4ae [2022-03-04 04:57:07,492 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c6ce4a60/1c8cca858a8244beaec38ecea85c88c0 [2022-03-04 04:57:07,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 04:57:07,494 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-04 04:57:07,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-04 04:57:07,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-04 04:57:07,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-04 04:57:07,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:57:07" (1/1) ... [2022-03-04 04:57:07,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388e090f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:57:07, skipping insertion in model container [2022-03-04 04:57:07,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:57:07" (1/1) ... [2022-03-04 04:57:07,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-04 04:57:07,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-04 04:57:07,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-04 04:57:07,645 INFO L203 MainTranslator]: Completed pre-run [2022-03-04 04:57:07,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-04 04:57:07,662 INFO L208 MainTranslator]: Completed translation [2022-03-04 04:57:07,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:57:07 WrapperNode [2022-03-04 04:57:07,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-04 04:57:07,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 04:57:07,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 04:57:07,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 04:57:07,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:57:07" (1/1) ... [2022-03-04 04:57:07,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:57:07" (1/1) ... [2022-03-04 04:57:07,683 INFO L137 Inliner]: procedures = 10, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-03-04 04:57:07,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 04:57:07,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 04:57:07,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 04:57:07,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 04:57:07,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:57:07" (1/1) ... [2022-03-04 04:57:07,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:57:07" (1/1) ... [2022-03-04 04:57:07,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:57:07" (1/1) ... [2022-03-04 04:57:07,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:57:07" (1/1) ... [2022-03-04 04:57:07,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:57:07" (1/1) ... [2022-03-04 04:57:07,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:57:07" (1/1) ... [2022-03-04 04:57:07,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:57:07" (1/1) ... [2022-03-04 04:57:07,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 04:57:07,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 04:57:07,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 04:57:07,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 04:57:07,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:57:07" (1/1) ... [2022-03-04 04:57:07,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 04:57:07,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 04:57:07,715 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) [2022-03-04 04:57:07,719 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 [2022-03-04 04:57:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-04 04:57:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-04 04:57:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-04 04:57:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-03-04 04:57:07,741 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-03-04 04:57:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 04:57:07,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 04:57:07,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-04 04:57:07,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-04 04:57:07,743 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 04:57:07,793 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 04:57:07,794 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 04:57:07,885 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 04:57:07,890 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 04:57:07,890 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 04:57:07,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 04:57:07 BoogieIcfgContainer [2022-03-04 04:57:07,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 04:57:07,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 04:57:07,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 04:57:07,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 04:57:07,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 04:57:07" (1/3) ... [2022-03-04 04:57:07,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7a8271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 04:57:07, skipping insertion in model container [2022-03-04 04:57:07,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:57:07" (2/3) ... [2022-03-04 04:57:07,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7a8271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 04:57:07, skipping insertion in model container [2022-03-04 04:57:07,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 04:57:07" (3/3) ... [2022-03-04 04:57:07,898 INFO L111 eAbstractionObserver]: Analyzing ICFG 11b-double-end.c [2022-03-04 04:57:07,902 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 04:57:07,902 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 04:57:07,902 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 04:57:07,902 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 04:57:07,939 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:07,940 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:07,940 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:07,940 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:07,940 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:07,940 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:07,940 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:07,940 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:07,941 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:07,941 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:07,941 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:07,941 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:07,943 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:07,944 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:07,944 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:07,944 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:07,945 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-04 04:57:08,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 04:57:08,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 04:57:08,021 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) [2022-03-04 04:57:08,022 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 [2022-03-04 04:57:08,043 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 04:57:08,049 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=true [2022-03-04 04:57:08,050 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-04 04:57:08,093 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 24 transitions and produced 25 states. [2022-03-04 04:57:08,094 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 04:57:08,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 04:57:08,101 INFO L85 PathProgramCache]: Analyzing trace with hash -498706984, now seen corresponding path program 1 times [2022-03-04 04:57:08,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 04:57:08,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432199378] [2022-03-04 04:57:08,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 04:57:08,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 04:57:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 04:57:08,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 04:57:08,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 04:57:08,257 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432199378] [2022-03-04 04:57:08,257 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432199378] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 04:57:08,258 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 04:57:08,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 04:57:08,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740638105] [2022-03-04 04:57:08,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 04:57:08,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-04 04:57:08,266 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 04:57:08,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-04 04:57:08,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-04 04:57:08,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 04:57:08,298 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 04:57:08,298 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) [2022-03-04 04:57:08,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 04:57:08,330 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 28 transitions and produced 28 states. [2022-03-04 04:57:08,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-04 04:57:08,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 04:57:08,331 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 04:57:08,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 04:57:08,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1778955319, now seen corresponding path program 1 times [2022-03-04 04:57:08,334 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 04:57:08,334 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279375580] [2022-03-04 04:57:08,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 04:57:08,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 04:57:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 04:57:08,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 04:57:08,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 04:57:08,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279375580] [2022-03-04 04:57:08,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279375580] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 04:57:08,395 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 04:57:08,395 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-04 04:57:08,395 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736061510] [2022-03-04 04:57:08,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 04:57:08,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 04:57:08,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 04:57:08,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 04:57:08,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 04:57:08,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 04:57:08,397 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 04:57:08,398 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) [2022-03-04 04:57:08,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-04 04:57:08,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 04:57:08,423 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 37 transitions and produced 34 states. [2022-03-04 04:57:08,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-04 04:57:08,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 04:57:08,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-04 04:57:08,424 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 04:57:08,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 04:57:08,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1779045529, now seen corresponding path program 2 times [2022-03-04 04:57:08,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 04:57:08,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816804770] [2022-03-04 04:57:08,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 04:57:08,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 04:57:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-04 04:57:08,452 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-04 04:57:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-04 04:57:08,479 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-04 04:57:08,481 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-04 04:57:08,486 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-03-04 04:57:08,488 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-03-04 04:57:08,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-04 04:57:08,496 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1] [2022-03-04 04:57:08,499 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 04:57:08,499 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 04:57:08,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 04:57:08 BasicIcfg [2022-03-04 04:57:08,523 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 04:57:08,524 INFO L158 Benchmark]: Toolchain (without parser) took 1029.32ms. Allocated memory was 176.2MB in the beginning and 275.8MB in the end (delta: 99.6MB). Free memory was 117.2MB in the beginning and 202.4MB in the end (delta: -85.1MB). Peak memory consumption was 14.3MB. Max. memory is 8.0GB. [2022-03-04 04:57:08,524 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 176.2MB. Free memory is still 135.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 04:57:08,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 166.54ms. Allocated memory was 176.2MB in the beginning and 275.8MB in the end (delta: 99.6MB). Free memory was 117.0MB in the beginning and 248.5MB in the end (delta: -131.5MB). Peak memory consumption was 8.2MB. Max. memory is 8.0GB. [2022-03-04 04:57:08,527 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.19ms. Allocated memory is still 275.8MB. Free memory was 248.5MB in the beginning and 246.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-04 04:57:08,528 INFO L158 Benchmark]: Boogie Preprocessor took 9.47ms. Allocated memory is still 275.8MB. Free memory was 246.9MB in the beginning and 245.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 04:57:08,530 INFO L158 Benchmark]: RCFGBuilder took 198.35ms. Allocated memory is still 275.8MB. Free memory was 245.9MB in the beginning and 235.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-04 04:57:08,530 INFO L158 Benchmark]: TraceAbstraction took 629.97ms. Allocated memory is still 275.8MB. Free memory was 234.9MB in the beginning and 202.4MB in the end (delta: 32.5MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2022-03-04 04:57:08,536 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 176.2MB. Free memory is still 135.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 166.54ms. Allocated memory was 176.2MB in the beginning and 275.8MB in the end (delta: 99.6MB). Free memory was 117.0MB in the beginning and 248.5MB in the end (delta: -131.5MB). Peak memory consumption was 8.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.19ms. Allocated memory is still 275.8MB. Free memory was 248.5MB in the beginning and 246.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 9.47ms. Allocated memory is still 275.8MB. Free memory was 246.9MB in the beginning and 245.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 198.35ms. Allocated memory is still 275.8MB. Free memory was 245.9MB in the beginning and 235.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 629.97ms. Allocated memory is still 275.8MB. Free memory was 234.9MB in the beginning and 202.4MB in the end (delta: 32.5MB). Peak memory consumption was 32.5MB. 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: 32]: 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 VAL [arg={0:0}, threadId={2:0}, x=1] [L18] 1 x = 0 VAL [arg={0:0}, arg={0:0}, x=0] [L29] 0 x = x + 1 VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=1] [L32] 0 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=1] - 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! [2022-03-04 04:57:08,560 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 [2022-03-04 04:57:08,775 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...