/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-POR-NewStatesSleepPersistentFixedOrder-NoLbe.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-44898dd [2022-02-09 13:51:21,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 13:51:21,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 13:51:21,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-09 13:51:21,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-09 13:51:21,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-09 13:51:21,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-09 13:51:21,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-09 13:51:21,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-09 13:51:21,190 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-09 13:51:21,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-09 13:51:21,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-09 13:51:21,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-09 13:51:21,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-09 13:51:21,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-09 13:51:21,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-09 13:51:21,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-09 13:51:21,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-09 13:51:21,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-09 13:51:21,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-09 13:51:21,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-09 13:51:21,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-09 13:51:21,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-09 13:51:21,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-09 13:51:21,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-09 13:51:21,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-09 13:51:21,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-09 13:51:21,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-09 13:51:21,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-09 13:51:21,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-09 13:51:21,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-09 13:51:21,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-09 13:51:21,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-09 13:51:21,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-09 13:51:21,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-09 13:51:21,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-09 13:51:21,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-09 13:51:21,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-09 13:51:21,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 13:51:21,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 13:51:21,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 13:51:21,229 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2022-02-09 13:51:21,245 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 13:51:21,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 13:51:21,245 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 13:51:21,245 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 13:51:21,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 13:51:21,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 13:51:21,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 13:51:21,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 13:51:21,246 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 13:51:21,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 13:51:21,246 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 13:51:21,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 13:51:21,246 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 13:51:21,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 13:51:21,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 13:51:21,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 13:51:21,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 13:51:21,257 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 13:51:21,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 13:51:21,257 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 13:51:21,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 13:51:21,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 13:51:21,257 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 13:51:21,258 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 13:51:21,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 13:51:21,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 13:51:21,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 13:51:21,258 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-09 13:51:21,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 13:51:21,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 13:51:21,259 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 13:51:21,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 13:51:21,259 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 13:51:21,259 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 13:51:21,259 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 13:51:21,259 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-09 13:51:21,260 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-02-09 13:51:21,260 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 13:51:21,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 13:51:21,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 13:51:21,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 13:51:21,469 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-09 13:51:21,470 INFO L275 PluginConnector]: CDTParser initialized [2022-02-09 13:51:21,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/11b-double-end.c [2022-02-09 13:51:21,520 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5992fc1e/4c29564763304429a6807d8d6cddc966/FLAG4305b169a [2022-02-09 13:51:21,861 INFO L306 CDTParser]: Found 1 translation units. [2022-02-09 13:51:21,861 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/11b-double-end.c [2022-02-09 13:51:21,861 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-09 13:51:21,899 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5992fc1e/4c29564763304429a6807d8d6cddc966/FLAG4305b169a [2022-02-09 13:51:22,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5992fc1e/4c29564763304429a6807d8d6cddc966 [2022-02-09 13:51:22,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 13:51:22,312 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-09 13:51:22,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-09 13:51:22,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-09 13:51:22,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-09 13:51:22,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 01:51:22" (1/1) ... [2022-02-09 13:51:22,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d446fa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:51:22, skipping insertion in model container [2022-02-09 13:51:22,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 01:51:22" (1/1) ... [2022-02-09 13:51:22,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-09 13:51:22,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-09 13:51:22,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 13:51:22,448 INFO L203 MainTranslator]: Completed pre-run [2022-02-09 13:51:22,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 13:51:22,463 INFO L208 MainTranslator]: Completed translation [2022-02-09 13:51:22,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:51:22 WrapperNode [2022-02-09 13:51:22,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-09 13:51:22,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 13:51:22,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 13:51:22,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 13:51:22,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:51:22" (1/1) ... [2022-02-09 13:51:22,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:51:22" (1/1) ... [2022-02-09 13:51:22,484 INFO L137 Inliner]: procedures = 10, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-02-09 13:51:22,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 13:51:22,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 13:51:22,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 13:51:22,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 13:51:22,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:51:22" (1/1) ... [2022-02-09 13:51:22,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:51:22" (1/1) ... [2022-02-09 13:51:22,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:51:22" (1/1) ... [2022-02-09 13:51:22,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:51:22" (1/1) ... [2022-02-09 13:51:22,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:51:22" (1/1) ... [2022-02-09 13:51:22,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:51:22" (1/1) ... [2022-02-09 13:51:22,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:51:22" (1/1) ... [2022-02-09 13:51:22,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 13:51:22,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 13:51:22,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 13:51:22,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 13:51:22,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:51:22" (1/1) ... [2022-02-09 13:51:22,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 13:51:22,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:51:22,534 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 13:51:22,540 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 13:51:22,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-09 13:51:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-09 13:51:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-09 13:51:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-02-09 13:51:22,564 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-02-09 13:51:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 13:51:22,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 13:51:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-09 13:51:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-09 13:51:22,565 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 13:51:22,608 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 13:51:22,610 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 13:51:22,691 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 13:51:22,695 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 13:51:22,696 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-09 13:51:22,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 01:51:22 BoogieIcfgContainer [2022-02-09 13:51:22,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 13:51:22,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 13:51:22,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 13:51:22,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 13:51:22,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 01:51:22" (1/3) ... [2022-02-09 13:51:22,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d39e78b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 01:51:22, skipping insertion in model container [2022-02-09 13:51:22,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:51:22" (2/3) ... [2022-02-09 13:51:22,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d39e78b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 01:51:22, skipping insertion in model container [2022-02-09 13:51:22,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 01:51:22" (3/3) ... [2022-02-09 13:51:22,703 INFO L111 eAbstractionObserver]: Analyzing ICFG 11b-double-end.c [2022-02-09 13:51:22,707 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 13:51:22,707 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 13:51:22,707 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 13:51:22,707 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 13:51:22,750 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:51:22,750 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:51:22,750 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:51:22,750 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:51:22,750 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:51:22,751 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:51:22,751 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:51:22,751 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:51:22,751 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:51:22,751 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:51:22,752 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:51:22,752 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:51:22,754 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:51:22,754 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:51:22,767 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:51:22,767 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:51:22,769 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-09 13:51:22,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 13:51:22,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:51:22,860 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 13:51:22,861 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 13:51:22,908 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-09 13:51:22,916 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 13:51:22,917 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-09 13:51:23,025 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-09 13:51:23,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:51:23,031 INFO L85 PathProgramCache]: Analyzing trace with hash -498706984, now seen corresponding path program 1 times [2022-02-09 13:51:23,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:51:23,037 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76933260] [2022-02-09 13:51:23,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:51:23,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:51:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:51:23,189 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 13:51:23,190 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:51:23,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76933260] [2022-02-09 13:51:23,190 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76933260] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:51:23,190 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:51:23,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 13:51:23,191 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936271895] [2022-02-09 13:51:23,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:51:23,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 13:51:23,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:51:23,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 13:51:23,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-09 13:51:23,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:23,210 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:51:23,210 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 13:51:23,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:51:23,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 13:51:23,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 13:51:23,234 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-09 13:51:23,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:51:23,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1779045529, now seen corresponding path program 1 times [2022-02-09 13:51:23,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:51:23,235 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569514585] [2022-02-09 13:51:23,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:51:23,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:51:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 13:51:23,246 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-09 13:51:23,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 13:51:23,263 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-09 13:51:23,264 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-09 13:51:23,265 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-02-09 13:51:23,266 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-09 13:51:23,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 13:51:23,271 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-09 13:51:23,274 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-09 13:51:23,274 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 13:51:23,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 01:51:23 BasicIcfg [2022-02-09 13:51:23,290 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 13:51:23,290 INFO L158 Benchmark]: Toolchain (without parser) took 977.75ms. Allocated memory is still 202.4MB. Free memory was 153.6MB in the beginning and 134.6MB in the end (delta: 19.0MB). Peak memory consumption was 20.6MB. Max. memory is 8.0GB. [2022-02-09 13:51:23,290 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 202.4MB. Free memory is still 171.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 13:51:23,291 INFO L158 Benchmark]: CACSL2BoogieTranslator took 150.73ms. Allocated memory is still 202.4MB. Free memory was 153.3MB in the beginning and 175.5MB in the end (delta: -22.2MB). Peak memory consumption was 9.0MB. Max. memory is 8.0GB. [2022-02-09 13:51:23,291 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.96ms. Allocated memory is still 202.4MB. Free memory was 175.5MB in the beginning and 174.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 13:51:23,291 INFO L158 Benchmark]: Boogie Preprocessor took 15.08ms. Allocated memory is still 202.4MB. Free memory was 174.5MB in the beginning and 173.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 13:51:23,292 INFO L158 Benchmark]: RCFGBuilder took 196.22ms. Allocated memory is still 202.4MB. Free memory was 173.4MB in the beginning and 164.0MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-09 13:51:23,292 INFO L158 Benchmark]: TraceAbstraction took 591.37ms. Allocated memory is still 202.4MB. Free memory was 163.5MB in the beginning and 134.6MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-02-09 13:51:23,294 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 202.4MB. Free memory is still 171.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 150.73ms. Allocated memory is still 202.4MB. Free memory was 153.3MB in the beginning and 175.5MB in the end (delta: -22.2MB). Peak memory consumption was 9.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.96ms. Allocated memory is still 202.4MB. Free memory was 175.5MB in the beginning and 174.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.08ms. Allocated memory is still 202.4MB. Free memory was 174.5MB in the beginning and 173.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 196.22ms. Allocated memory is still 202.4MB. Free memory was 173.4MB in the beginning and 164.0MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 591.37ms. Allocated memory is still 202.4MB. Free memory was 163.5MB in the beginning and 134.6MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 62, positive: 56, positive conditional: 18, positive unconditional: 38, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 62, positive: 56, positive conditional: 18, positive unconditional: 38, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 62, positive: 56, positive conditional: 18, positive unconditional: 38, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 63, positive: 56, positive conditional: 4, positive unconditional: 52, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 63, positive: 56, positive conditional: 4, positive unconditional: 52, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 63, positive: 56, positive conditional: 4, positive unconditional: 52, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 45, positive: 39, positive conditional: 1, positive unconditional: 38, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 45, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, positive: 4, positive conditional: 2, positive unconditional: 3, negative: 47, negative conditional: 1, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 63, positive: 17, positive conditional: 3, positive unconditional: 14, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 45, unknown conditional: 2, unknown unconditional: 43] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 39, Positive conditional cache size: 1, Positive unconditional cache size: 38, Negative cache size: 6, Negative conditional cache size: 1, Negative unconditional cache size: 5, Eliminated conditions: 0, Maximal queried relation: 1, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 23, Number of trivial persistent sets: 19, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 43, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 62, positive: 56, positive conditional: 18, positive unconditional: 38, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 62, positive: 56, positive conditional: 18, positive unconditional: 38, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 62, positive: 56, positive conditional: 18, positive unconditional: 38, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 63, positive: 56, positive conditional: 4, positive unconditional: 52, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 63, positive: 56, positive conditional: 4, positive unconditional: 52, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 63, positive: 56, positive conditional: 4, positive unconditional: 52, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 45, positive: 39, positive conditional: 1, positive unconditional: 38, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 45, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, positive: 4, positive conditional: 2, positive unconditional: 3, negative: 47, negative conditional: 1, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 63, positive: 17, positive conditional: 3, positive unconditional: 14, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 45, unknown conditional: 2, unknown unconditional: 43] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 39, Positive conditional cache size: 1, Positive unconditional cache size: 38, Negative cache size: 6, Negative conditional cache size: 1, Negative unconditional cache size: 5, 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 37 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, 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: 4, 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, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-02-09 13:51:23,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-09 13:51:23,532 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...