/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 17:02:33,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 17:02:33,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 17:02:33,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 17:02:33,899 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.epf [2022-02-09 17:02:33,920 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 17:02:33,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 17:02:33,921 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 17:02:33,921 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 17:02:33,921 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 17:02:33,921 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 17:02:33,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 17:02:33,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 17:02:33,922 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 17:02:33,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 17:02:33,923 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 17:02:33,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 17:02:33,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 17:02:33,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 17:02:33,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 17:02:33,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 17:02:33,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 17:02:33,923 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 17:02:33,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 17:02:33,923 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 17:02:33,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 17:02:33,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 17:02:33,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 17:02:33,924 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 17:02:33,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 17:02:33,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 17:02:33,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 17:02:33,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 17:02:33,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 17:02:33,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 17:02:33,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 17:02:33,925 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 17:02:33,925 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 17:02:33,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 17:02:33,925 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-09 17:02:33,925 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 17:02:34,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 17:02:34,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 17:02:34,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 17:02:34,123 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-09 17:02:34,124 INFO L275 PluginConnector]: CDTParser initialized [2022-02-09 17:02:34,125 INFO L432 ainManager$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_neg.i [2022-02-09 17:02:34,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd74a491f/50b94d19ce60410db73839f0fb1b320f/FLAG7128527e0 [2022-02-09 17:02:34,524 INFO L306 CDTParser]: Found 1 translation units. [2022-02-09 17:02:34,524 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-02-09 17:02:34,532 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd74a491f/50b94d19ce60410db73839f0fb1b320f/FLAG7128527e0 [2022-02-09 17:02:34,896 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd74a491f/50b94d19ce60410db73839f0fb1b320f [2022-02-09 17:02:34,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 17:02:34,899 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-09 17:02:34,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-09 17:02:34,902 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-09 17:02:34,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-09 17:02:34,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 05:02:34" (1/1) ... [2022-02-09 17:02:34,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@792d018f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:34, skipping insertion in model container [2022-02-09 17:02:34,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 05:02:34" (1/1) ... [2022-02-09 17:02:34,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-09 17:02:34,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-09 17:02:35,097 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_neg.i[1098,1111] [2022-02-09 17:02:35,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 17:02:35,202 INFO L203 MainTranslator]: Completed pre-run [2022-02-09 17:02:35,212 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_neg.i[1098,1111] [2022-02-09 17:02:35,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 17:02:35,270 INFO L208 MainTranslator]: Completed translation [2022-02-09 17:02:35,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:35 WrapperNode [2022-02-09 17:02:35,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-09 17:02:35,272 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 17:02:35,272 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 17:02:35,272 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 17:02:35,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:35" (1/1) ... [2022-02-09 17:02:35,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:35" (1/1) ... [2022-02-09 17:02:35,316 INFO L137 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-02-09 17:02:35,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 17:02:35,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 17:02:35,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 17:02:35,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 17:02:35,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:35" (1/1) ... [2022-02-09 17:02:35,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:35" (1/1) ... [2022-02-09 17:02:35,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:35" (1/1) ... [2022-02-09 17:02:35,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:35" (1/1) ... [2022-02-09 17:02:35,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:35" (1/1) ... [2022-02-09 17:02:35,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:35" (1/1) ... [2022-02-09 17:02:35,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:35" (1/1) ... [2022-02-09 17:02:35,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 17:02:35,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 17:02:35,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 17:02:35,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 17:02:35,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:35" (1/1) ... [2022-02-09 17:02:35,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 17:02:35,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 17:02:35,373 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 17:02:35,375 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 17:02:35,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-09 17:02:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-09 17:02:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-09 17:02:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-09 17:02:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-02-09 17:02:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-02-09 17:02:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-09 17:02:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-09 17:02:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 17:02:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 17:02:35,403 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 17:02:35,468 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 17:02:35,470 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 17:02:35,591 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 17:02:35,596 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 17:02:35,596 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-09 17:02:35,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 05:02:35 BoogieIcfgContainer [2022-02-09 17:02:35,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 17:02:35,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 17:02:35,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 17:02:35,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 17:02:35,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 05:02:34" (1/3) ... [2022-02-09 17:02:35,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca736c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 05:02:35, skipping insertion in model container [2022-02-09 17:02:35,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:35" (2/3) ... [2022-02-09 17:02:35,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca736c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 05:02:35, skipping insertion in model container [2022-02-09 17:02:35,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 05:02:35" (3/3) ... [2022-02-09 17:02:35,609 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-02-09 17:02:35,617 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 17:02:35,617 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 17:02:35,617 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 17:02:35,617 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 17:02:35,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,666 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,666 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,667 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,667 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,672 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,672 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,672 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,673 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,673 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,673 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:35,674 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-09 17:02:35,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 17:02:35,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 17:02:35,724 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 17:02:35,728 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 17:02:35,750 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 17:02:35,754 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=false, 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 17:02:35,754 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-09 17:02:35,761 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 80 places, 78 transitions, 161 flow [2022-02-09 17:02:35,787 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 245 states, 244 states have (on average 1.7827868852459017) internal successors, (435), 244 states have internal predecessors, (435), 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 17:02:35,802 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 73 transitions and produced 74 states. [2022-02-09 17:02:35,804 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-09 17:02:35,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 17:02:35,807 INFO L85 PathProgramCache]: Analyzing trace with hash 687613271, now seen corresponding path program 1 times [2022-02-09 17:02:35,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 17:02:35,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982817382] [2022-02-09 17:02:35,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 17:02:35,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 17:02:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 17:02:35,902 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-09 17:02:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 17:02:35,975 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-09 17:02:35,977 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-09 17:02:35,977 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-02-09 17:02:35,978 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-09 17:02:35,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 17:02:35,984 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-09 17:02:35,989 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-09 17:02:35,989 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 17:02:36,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 05:02:36 BasicIcfg [2022-02-09 17:02:36,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 17:02:36,013 INFO L158 Benchmark]: Toolchain (without parser) took 1114.07ms. Allocated memory was 180.4MB in the beginning and 275.8MB in the end (delta: 95.4MB). Free memory was 121.0MB in the beginning and 192.6MB in the end (delta: -71.5MB). Peak memory consumption was 23.7MB. Max. memory is 8.0GB. [2022-02-09 17:02:36,014 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 180.4MB. Free memory is still 138.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 17:02:36,014 INFO L158 Benchmark]: CACSL2BoogieTranslator took 369.09ms. Allocated memory was 180.4MB in the beginning and 275.8MB in the end (delta: 95.4MB). Free memory was 120.8MB in the beginning and 238.7MB in the end (delta: -117.9MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. [2022-02-09 17:02:36,014 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.00ms. Allocated memory is still 275.8MB. Free memory was 238.7MB in the beginning and 236.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-09 17:02:36,015 INFO L158 Benchmark]: Boogie Preprocessor took 28.16ms. Allocated memory is still 275.8MB. Free memory was 236.6MB in the beginning and 235.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 17:02:36,015 INFO L158 Benchmark]: RCFGBuilder took 251.61ms. Allocated memory is still 275.8MB. Free memory was 235.6MB in the beginning and 222.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-09 17:02:36,016 INFO L158 Benchmark]: TraceAbstraction took 414.07ms. Allocated memory is still 275.8MB. Free memory was 221.9MB in the beginning and 192.6MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-02-09 17:02:36,018 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 180.4MB. Free memory is still 138.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 369.09ms. Allocated memory was 180.4MB in the beginning and 275.8MB in the end (delta: 95.4MB). Free memory was 120.8MB in the beginning and 238.7MB in the end (delta: -117.9MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.00ms. Allocated memory is still 275.8MB. Free memory was 238.7MB in the beginning and 236.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.16ms. Allocated memory is still 275.8MB. Free memory was 236.6MB in the beginning and 235.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 251.61ms. Allocated memory is still 275.8MB. Free memory was 235.6MB in the beginning and 222.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 414.07ms. Allocated memory is still 275.8MB. Free memory was 221.9MB in the beginning and 192.6MB in the end (delta: 29.4MB). 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: 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()=1, A={3:0}, B={4:0}, g=42, r=1] [L695] 0 int t; VAL [A={3:0}, B={4:0}, g=42, r=1] [L696] 0 pthread_t id; VAL [A={3:0}, B={4:0}, g=42, id={5:0}, r=1] [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=1] [L700] COND TRUE 0 \read(r) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, r=1] [L701] 0 g = 17 VAL [A={3:0}, arg={0:0}, B={4:0}, g=17, id={5:0}, r=1] [L705] 0 t = g VAL [A={3:0}, arg={0:0}, B={4:0}, g=17, id={5:0}, r=1, t=17] [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=17] [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=17] - 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: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=245occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 17:02:36,055 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 17:02:36,246 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...