./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36105814f7d14243ca8b55776979fcada1717aa30ae4c259b302358b1f244a48 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 16:45:35,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 16:45:35,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 16:45:35,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 16:45:35,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 16:45:35,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 16:45:35,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 16:45:35,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 16:45:35,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 16:45:35,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 16:45:35,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 16:45:35,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 16:45:35,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 16:45:35,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 16:45:35,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 16:45:35,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 16:45:35,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 16:45:35,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 16:45:35,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 16:45:35,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 16:45:35,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 16:45:35,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 16:45:35,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 16:45:35,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 16:45:35,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 16:45:35,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 16:45:35,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 16:45:35,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 16:45:35,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 16:45:35,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 16:45:35,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 16:45:35,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 16:45:35,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 16:45:35,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 16:45:35,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 16:45:35,832 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 16:45:35,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 16:45:35,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 16:45:35,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 16:45:35,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 16:45:35,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 16:45:35,835 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 16:45:35,854 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 16:45:35,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 16:45:35,855 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 16:45:35,856 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 16:45:35,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 16:45:35,857 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 16:45:35,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 16:45:35,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 16:45:35,857 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 16:45:35,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 16:45:35,858 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 16:45:35,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 16:45:35,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 16:45:35,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 16:45:35,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 16:45:35,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 16:45:35,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 16:45:35,859 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 16:45:35,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 16:45:35,860 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 16:45:35,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 16:45:35,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 16:45:35,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 16:45:35,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 16:45:35,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 16:45:35,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 16:45:35,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 16:45:35,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 16:45:35,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 16:45:35,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 16:45:35,861 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 16:45:35,861 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 16:45:35,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 16:45:35,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 16:45:35,862 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36105814f7d14243ca8b55776979fcada1717aa30ae4c259b302358b1f244a48 [2021-12-14 16:45:36,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 16:45:36,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 16:45:36,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 16:45:36,053 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 16:45:36,053 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 16:45:36,054 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2021-12-14 16:45:36,102 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22ea62dfc/fde42835d7714203b766689bab8ba1f6/FLAG1fb4c5390 [2021-12-14 16:45:36,513 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 16:45:36,514 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2021-12-14 16:45:36,525 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22ea62dfc/fde42835d7714203b766689bab8ba1f6/FLAG1fb4c5390 [2021-12-14 16:45:36,534 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22ea62dfc/fde42835d7714203b766689bab8ba1f6 [2021-12-14 16:45:36,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 16:45:36,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 16:45:36,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 16:45:36,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 16:45:36,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 16:45:36,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:45:36" (1/1) ... [2021-12-14 16:45:36,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fe8e7a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:36, skipping insertion in model container [2021-12-14 16:45:36,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:45:36" (1/1) ... [2021-12-14 16:45:36,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 16:45:36,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 16:45:36,705 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2021-12-14 16:45:36,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 16:45:36,789 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 16:45:36,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2021-12-14 16:45:36,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 16:45:36,878 INFO L208 MainTranslator]: Completed translation [2021-12-14 16:45:36,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:36 WrapperNode [2021-12-14 16:45:36,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 16:45:36,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 16:45:36,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 16:45:36,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 16:45:36,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:36" (1/1) ... [2021-12-14 16:45:36,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:36" (1/1) ... [2021-12-14 16:45:36,926 INFO L137 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2021-12-14 16:45:36,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 16:45:36,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 16:45:36,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 16:45:36,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 16:45:36,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:36" (1/1) ... [2021-12-14 16:45:36,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:36" (1/1) ... [2021-12-14 16:45:36,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:36" (1/1) ... [2021-12-14 16:45:36,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:36" (1/1) ... [2021-12-14 16:45:36,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:36" (1/1) ... [2021-12-14 16:45:36,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:36" (1/1) ... [2021-12-14 16:45:36,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:36" (1/1) ... [2021-12-14 16:45:36,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 16:45:36,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 16:45:36,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 16:45:36,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 16:45:36,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:36" (1/1) ... [2021-12-14 16:45:36,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 16:45:36,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:45:36,979 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) [2021-12-14 16:45:36,987 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 [2021-12-14 16:45:37,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 16:45:37,011 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-14 16:45:37,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 16:45:37,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 16:45:37,012 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-14 16:45:37,012 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-14 16:45:37,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 16:45:37,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 16:45:37,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 16:45:37,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 16:45:37,013 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-14 16:45:37,100 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 16:45:37,101 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 16:45:37,241 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 16:45:37,246 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 16:45:37,246 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 16:45:37,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:45:37 BoogieIcfgContainer [2021-12-14 16:45:37,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 16:45:37,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 16:45:37,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 16:45:37,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 16:45:37,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:45:36" (1/3) ... [2021-12-14 16:45:37,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f41d846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:45:37, skipping insertion in model container [2021-12-14 16:45:37,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:36" (2/3) ... [2021-12-14 16:45:37,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f41d846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:45:37, skipping insertion in model container [2021-12-14 16:45:37,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:45:37" (3/3) ... [2021-12-14 16:45:37,256 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2021-12-14 16:45:37,259 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-14 16:45:37,259 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 16:45:37,259 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 16:45:37,259 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-14 16:45:37,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,290 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,290 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,291 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,291 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,300 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,300 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,300 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,301 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:37,304 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-14 16:45:37,347 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 16:45:37,356 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=PETRI_NET, 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 [2021-12-14 16:45:37,356 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-14 16:45:37,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 161 flow [2021-12-14 16:45:37,401 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2021-12-14 16:45:37,401 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-14 16:45:37,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2021-12-14 16:45:37,403 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 78 transitions, 161 flow [2021-12-14 16:45:37,407 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 65 transitions, 133 flow [2021-12-14 16:45:37,418 INFO L129 PetriNetUnfolder]: 1/64 cut-off events. [2021-12-14 16:45:37,418 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-14 16:45:37,418 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:45:37,419 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:45:37,419 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-14 16:45:37,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:45:37,422 INFO L85 PathProgramCache]: Analyzing trace with hash -280445477, now seen corresponding path program 1 times [2021-12-14 16:45:37,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:45:37,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278326957] [2021-12-14 16:45:37,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:45:37,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:45:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:45:37,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:45:37,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:45:37,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278326957] [2021-12-14 16:45:37,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278326957] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:45:37,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:45:37,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:45:37,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648034116] [2021-12-14 16:45:37,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:45:37,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:45:37,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:45:37,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:45:37,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:45:37,723 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 78 [2021-12-14 16:45:37,726 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 65 transitions, 133 flow. Second operand has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 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) [2021-12-14 16:45:37,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:45:37,727 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 78 [2021-12-14 16:45:37,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:45:37,829 INFO L129 PetriNetUnfolder]: 9/125 cut-off events. [2021-12-14 16:45:37,830 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-14 16:45:37,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 125 events. 9/125 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 298 event pairs, 0 based on Foata normal form. 2/124 useless extension candidates. Maximal degree in co-relation 125. Up to 15 conditions per place. [2021-12-14 16:45:37,832 INFO L132 encePairwiseOnDemand]: 71/78 looper letters, 13 selfloop transitions, 3 changer transitions 8/77 dead transitions. [2021-12-14 16:45:37,832 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 77 transitions, 203 flow [2021-12-14 16:45:37,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 16:45:37,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-14 16:45:37,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 408 transitions. [2021-12-14 16:45:37,844 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8717948717948718 [2021-12-14 16:45:37,845 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 408 transitions. [2021-12-14 16:45:37,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 408 transitions. [2021-12-14 16:45:37,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:45:37,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 408 transitions. [2021-12-14 16:45:37,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 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) [2021-12-14 16:45:37,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 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) [2021-12-14 16:45:37,866 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 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) [2021-12-14 16:45:37,867 INFO L186 Difference]: Start difference. First operand has 68 places, 65 transitions, 133 flow. Second operand 6 states and 408 transitions. [2021-12-14 16:45:37,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 77 transitions, 203 flow [2021-12-14 16:45:37,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 77 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-14 16:45:37,874 INFO L242 Difference]: Finished difference. Result has 77 places, 65 transitions, 154 flow [2021-12-14 16:45:37,876 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=154, PETRI_PLACES=77, PETRI_TRANSITIONS=65} [2021-12-14 16:45:37,880 INFO L334 CegarLoopForPetriNet]: 68 programPoint places, 9 predicate places. [2021-12-14 16:45:37,881 INFO L470 AbstractCegarLoop]: Abstraction has has 77 places, 65 transitions, 154 flow [2021-12-14 16:45:37,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 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) [2021-12-14 16:45:37,881 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:45:37,881 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:45:37,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 16:45:37,882 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-14 16:45:37,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:45:37,882 INFO L85 PathProgramCache]: Analyzing trace with hash 687613271, now seen corresponding path program 1 times [2021-12-14 16:45:37,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:45:37,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996220043] [2021-12-14 16:45:37,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:45:37,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:45:37,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 16:45:37,906 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 16:45:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 16:45:37,940 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 16:45:37,940 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-14 16:45:37,942 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-14 16:45:37,943 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-12-14 16:45:37,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 16:45:37,946 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-14 16:45:37,949 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-14 16:45:37,949 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-14 16:45:37,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 04:45:37 BasicIcfg [2021-12-14 16:45:37,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-14 16:45:37,991 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 16:45:37,991 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 16:45:37,992 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 16:45:37,992 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:45:37" (3/4) ... [2021-12-14 16:45:37,993 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-14 16:45:38,028 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 16:45:38,028 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 16:45:38,029 INFO L158 Benchmark]: Toolchain (without parser) took 1491.93ms. Allocated memory was 102.8MB in the beginning and 138.4MB in the end (delta: 35.7MB). Free memory was 74.1MB in the beginning and 92.1MB in the end (delta: -18.0MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2021-12-14 16:45:38,029 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory was 60.3MB in the beginning and 60.3MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 16:45:38,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.12ms. Allocated memory was 102.8MB in the beginning and 138.4MB in the end (delta: 35.7MB). Free memory was 73.7MB in the beginning and 104.1MB in the end (delta: -30.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 16:45:38,030 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.20ms. Allocated memory is still 138.4MB. Free memory was 104.1MB in the beginning and 102.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 16:45:38,030 INFO L158 Benchmark]: Boogie Preprocessor took 25.30ms. Allocated memory is still 138.4MB. Free memory was 102.4MB in the beginning and 101.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 16:45:38,030 INFO L158 Benchmark]: RCFGBuilder took 294.71ms. Allocated memory is still 138.4MB. Free memory was 101.2MB in the beginning and 88.8MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-14 16:45:38,030 INFO L158 Benchmark]: TraceAbstraction took 742.22ms. Allocated memory is still 138.4MB. Free memory was 88.4MB in the beginning and 96.3MB in the end (delta: -7.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 16:45:38,031 INFO L158 Benchmark]: Witness Printer took 36.63ms. Allocated memory is still 138.4MB. Free memory was 96.3MB in the beginning and 92.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-14 16:45:38,033 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory was 60.3MB in the beginning and 60.3MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.12ms. Allocated memory was 102.8MB in the beginning and 138.4MB in the end (delta: 35.7MB). Free memory was 73.7MB in the beginning and 104.1MB in the end (delta: -30.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.20ms. Allocated memory is still 138.4MB. Free memory was 104.1MB in the beginning and 102.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.30ms. Allocated memory is still 138.4MB. Free memory was 102.4MB in the beginning and 101.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 294.71ms. Allocated memory is still 138.4MB. Free memory was 101.2MB in the beginning and 88.8MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 742.22ms. Allocated memory is still 138.4MB. Free memory was 88.4MB in the beginning and 96.3MB in the end (delta: -7.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 36.63ms. Allocated memory is still 138.4MB. Free memory was 96.3MB in the beginning and 92.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 11 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=154occurred in iteration=1, InterpolantAutomatonStates: 6, 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, 0.1s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 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! [2021-12-14 16:45:38,062 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE