/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 08:33:59,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 08:33:59,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 08:33:59,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-16 08:33:59,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 08:33:59,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 08:33:59,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 08:33:59,929 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf [2022-02-16 08:33:59,956 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 08:33:59,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 08:33:59,957 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 08:33:59,957 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 08:33:59,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 08:33:59,958 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 08:33:59,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 08:33:59,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 08:33:59,959 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 08:33:59,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 08:33:59,960 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 08:33:59,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 08:33:59,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 08:33:59,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 08:33:59,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 08:33:59,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 08:33:59,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 08:33:59,960 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 08:33:59,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 08:33:59,960 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 08:33:59,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 08:33:59,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 08:33:59,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 08:33:59,961 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 08:33:59,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 08:33:59,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 08:33:59,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 08:33:59,961 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-16 08:33:59,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 08:33:59,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 08:33:59,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 08:33:59,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 08:33:59,962 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 08:33:59,962 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-16 08:33:59,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 08:33:59,962 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-16 08:33:59,962 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 08:34:00,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 08:34:00,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 08:34:00,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 08:34:00,165 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-16 08:34:00,165 INFO L275 PluginConnector]: CDTParser initialized [2022-02-16 08:34:00,166 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-02-16 08:34:00,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/539e3f85b/0fdb6c045da44388a64202d18cfb814d/FLAG5fa3558b9 [2022-02-16 08:34:00,624 INFO L306 CDTParser]: Found 1 translation units. [2022-02-16 08:34:00,625 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-02-16 08:34:00,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/539e3f85b/0fdb6c045da44388a64202d18cfb814d/FLAG5fa3558b9 [2022-02-16 08:34:00,652 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/539e3f85b/0fdb6c045da44388a64202d18cfb814d [2022-02-16 08:34:00,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 08:34:00,655 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-16 08:34:00,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-16 08:34:00,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-16 08:34:00,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-16 08:34:00,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 08:34:00" (1/1) ... [2022-02-16 08:34:00,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5981f73a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 08:34:00, skipping insertion in model container [2022-02-16 08:34:00,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 08:34:00" (1/1) ... [2022-02-16 08:34:00,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-16 08:34:00,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-16 08:34:00,838 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-02-16 08:34:00,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 08:34:00,947 INFO L203 MainTranslator]: Completed pre-run [2022-02-16 08:34:00,956 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-02-16 08:34:00,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 08:34:01,006 INFO L208 MainTranslator]: Completed translation [2022-02-16 08:34:01,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 08:34:01 WrapperNode [2022-02-16 08:34:01,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-16 08:34:01,007 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 08:34:01,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 08:34:01,008 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 08:34:01,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 08:34:01" (1/1) ... [2022-02-16 08:34:01,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 08:34:01" (1/1) ... [2022-02-16 08:34:01,054 INFO L137 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-02-16 08:34:01,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 08:34:01,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 08:34:01,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 08:34:01,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 08:34:01,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 08:34:01" (1/1) ... [2022-02-16 08:34:01,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 08:34:01" (1/1) ... [2022-02-16 08:34:01,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 08:34:01" (1/1) ... [2022-02-16 08:34:01,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 08:34:01" (1/1) ... [2022-02-16 08:34:01,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 08:34:01" (1/1) ... [2022-02-16 08:34:01,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 08:34:01" (1/1) ... [2022-02-16 08:34:01,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 08:34:01" (1/1) ... [2022-02-16 08:34:01,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 08:34:01,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 08:34:01,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 08:34:01,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 08:34:01,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 08:34:01" (1/1) ... [2022-02-16 08:34:01,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 08:34:01,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 08:34:01,118 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) [2022-02-16 08:34:01,123 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 [2022-02-16 08:34:01,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-16 08:34:01,148 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-16 08:34:01,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-16 08:34:01,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-16 08:34:01,149 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-02-16 08:34:01,149 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-02-16 08:34:01,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-16 08:34:01,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-16 08:34:01,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 08:34:01,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 08:34:01,151 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 08:34:01,245 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 08:34:01,246 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 08:34:01,384 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 08:34:01,413 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 08:34:01,413 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-16 08:34:01,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 08:34:01 BoogieIcfgContainer [2022-02-16 08:34:01,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 08:34:01,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 08:34:01,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 08:34:01,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 08:34:01,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 08:34:00" (1/3) ... [2022-02-16 08:34:01,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90cf69a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 08:34:01, skipping insertion in model container [2022-02-16 08:34:01,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 08:34:01" (2/3) ... [2022-02-16 08:34:01,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90cf69a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 08:34:01, skipping insertion in model container [2022-02-16 08:34:01,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 08:34:01" (3/3) ... [2022-02-16 08:34:01,421 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-02-16 08:34:01,424 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 08:34:01,424 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 08:34:01,424 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 08:34:01,425 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 08:34:01,465 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,466 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,466 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,466 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,466 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,466 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,466 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,466 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,467 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,467 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,467 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,467 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,467 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,467 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,467 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,468 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,468 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,468 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,468 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,468 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,470 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,471 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,471 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,471 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,471 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,471 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 08:34:01,472 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-16 08:34:01,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 08:34:01,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 08:34:01,512 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) [2022-02-16 08:34:01,513 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 [2022-02-16 08:34:01,535 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 08:34:01,539 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 [2022-02-16 08:34:01,539 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-16 08:34:01,590 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 73 transitions and produced 74 states. [2022-02-16 08:34:01,592 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 08:34:01,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 08:34:01,595 INFO L85 PathProgramCache]: Analyzing trace with hash 687613271, now seen corresponding path program 1 times [2022-02-16 08:34:01,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 08:34:01,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261243699] [2022-02-16 08:34:01,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 08:34:01,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 08:34:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 08:34:01,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 08:34:01,907 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 08:34:01,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261243699] [2022-02-16 08:34:01,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261243699] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 08:34:01,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 08:34:01,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-16 08:34:01,910 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57573993] [2022-02-16 08:34:01,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 08:34:01,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-16 08:34:01,916 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 08:34:01,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-16 08:34:01,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-16 08:34:01,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 08:34:01,941 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 08:34:01,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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) [2022-02-16 08:34:01,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 08:34:02,075 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 190 transitions and produced 136 states. [2022-02-16 08:34:02,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 08:34:02,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-16 08:34:02,076 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 08:34:02,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 08:34:02,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1794058796, now seen corresponding path program 1 times [2022-02-16 08:34:02,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 08:34:02,077 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077034147] [2022-02-16 08:34:02,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 08:34:02,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 08:34:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 08:34:02,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 08:34:02,240 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 08:34:02,240 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077034147] [2022-02-16 08:34:02,240 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077034147] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 08:34:02,241 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 08:34:02,241 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-16 08:34:02,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809195410] [2022-02-16 08:34:02,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 08:34:02,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-16 08:34:02,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 08:34:02,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-16 08:34:02,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-16 08:34:02,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 08:34:02,242 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 08:34:02,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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) [2022-02-16 08:34:02,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-16 08:34:02,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 08:34:02,309 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 105 transitions and produced 96 states. [2022-02-16 08:34:02,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 08:34:02,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-16 08:34:02,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-16 08:34:02,312 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 08:34:02,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 08:34:02,316 INFO L85 PathProgramCache]: Analyzing trace with hash -280445477, now seen corresponding path program 1 times [2022-02-16 08:34:02,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 08:34:02,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887489869] [2022-02-16 08:34:02,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 08:34:02,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 08:34:02,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-16 08:34:02,338 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-16 08:34:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-16 08:34:02,362 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-16 08:34:02,362 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-16 08:34:02,366 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-02-16 08:34:02,367 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-16 08:34:02,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-16 08:34:02,374 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-16 08:34:02,377 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-16 08:34:02,377 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-16 08:34:02,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 08:34:02 BasicIcfg [2022-02-16 08:34:02,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-16 08:34:02,410 INFO L158 Benchmark]: Toolchain (without parser) took 1755.10ms. Allocated memory is still 199.2MB. Free memory was 147.9MB in the beginning and 86.6MB in the end (delta: 61.3MB). Peak memory consumption was 61.6MB. Max. memory is 8.0GB. [2022-02-16 08:34:02,411 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 199.2MB. Free memory is still 165.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 08:34:02,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.55ms. Allocated memory is still 199.2MB. Free memory was 147.8MB in the beginning and 166.3MB in the end (delta: -18.5MB). Peak memory consumption was 10.2MB. Max. memory is 8.0GB. [2022-02-16 08:34:02,411 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.74ms. Allocated memory is still 199.2MB. Free memory was 166.3MB in the beginning and 164.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-16 08:34:02,412 INFO L158 Benchmark]: Boogie Preprocessor took 26.29ms. Allocated memory is still 199.2MB. Free memory was 164.2MB in the beginning and 162.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-16 08:34:02,412 INFO L158 Benchmark]: RCFGBuilder took 332.92ms. Allocated memory is still 199.2MB. Free memory was 162.6MB in the beginning and 150.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-16 08:34:02,412 INFO L158 Benchmark]: TraceAbstraction took 994.11ms. Allocated memory is still 199.2MB. Free memory was 149.5MB in the beginning and 86.6MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2022-02-16 08:34:02,414 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 199.2MB. Free memory is still 165.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 349.55ms. Allocated memory is still 199.2MB. Free memory was 147.8MB in the beginning and 166.3MB in the end (delta: -18.5MB). Peak memory consumption was 10.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.74ms. Allocated memory is still 199.2MB. Free memory was 166.3MB in the beginning and 164.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.29ms. Allocated memory is still 199.2MB. Free memory was 164.2MB in the beginning and 162.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 332.92ms. Allocated memory is still 199.2MB. Free memory was 162.6MB in the beginning and 150.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 994.11ms. Allocated memory is still 199.2MB. Free memory was 149.5MB in the beginning and 86.6MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. 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: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int g = 42; VAL [g=42] [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, g=42] [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, B={4:0}, g=42] [L694] 0 int r = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, A={3:0}, B={4:0}, g=42, r=0] [L695] 0 int t; VAL [A={3:0}, B={4:0}, g=42, r=0] [L696] 0 pthread_t id; VAL [A={3:0}, B={4:0}, g=42, id={5:0}, r=0] [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=0] [L700] COND FALSE 0 !(\read(r)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, r=0] [L705] 0 t = g VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, r=0, t=42] [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=42] [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=42] - UnprovableResult [Line: 697]: 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, 89 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 332 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-02-16 08:34:02,440 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 [2022-02-16 08:34:02,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...