./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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/28-race_reach_94-alloc_region_racing.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 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 21:59:18,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 21:59:18,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 21:59:18,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 21:59:18,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 21:59:18,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 21:59:18,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 21:59:18,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 21:59:18,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 21:59:18,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 21:59:18,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 21:59:18,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 21:59:18,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 21:59:18,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 21:59:18,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 21:59:18,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 21:59:18,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 21:59:18,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 21:59:18,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 21:59:18,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 21:59:18,941 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 21:59:18,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 21:59:18,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 21:59:18,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 21:59:18,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 21:59:18,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 21:59:18,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 21:59:18,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 21:59:18,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 21:59:18,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 21:59:18,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 21:59:18,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 21:59:18,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 21:59:18,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 21:59:18,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 21:59:18,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 21:59:18,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 21:59:18,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 21:59:18,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 21:59:18,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 21:59:18,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 21:59:18,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 21:59:18,963 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 21:59:18,989 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 21:59:18,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 21:59:18,990 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 21:59:18,990 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 21:59:18,991 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 21:59:18,991 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 21:59:18,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 21:59:18,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 21:59:18,992 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 21:59:18,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 21:59:18,993 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 21:59:18,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 21:59:18,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 21:59:18,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 21:59:18,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 21:59:18,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 21:59:18,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 21:59:18,994 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 21:59:18,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 21:59:18,994 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 21:59:18,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 21:59:18,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 21:59:18,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 21:59:18,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 21:59:18,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:59:18,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 21:59:18,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 21:59:18,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 21:59:18,996 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 21:59:18,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 21:59:18,996 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 21:59:18,997 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 21:59:18,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 21:59:18,997 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 [2022-07-13 21:59:19,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 21:59:19,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 21:59:19,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 21:59:19,233 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 21:59:19,233 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 21:59:19,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2022-07-13 21:59:19,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25a04c5db/d5f33f5bd1f74374b3993177277eb585/FLAG459b14fb0 [2022-07-13 21:59:19,750 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 21:59:19,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2022-07-13 21:59:19,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25a04c5db/d5f33f5bd1f74374b3993177277eb585/FLAG459b14fb0 [2022-07-13 21:59:20,070 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25a04c5db/d5f33f5bd1f74374b3993177277eb585 [2022-07-13 21:59:20,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 21:59:20,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 21:59:20,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 21:59:20,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 21:59:20,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 21:59:20,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:59:20" (1/1) ... [2022-07-13 21:59:20,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c5a864c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:59:20, skipping insertion in model container [2022-07-13 21:59:20,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:59:20" (1/1) ... [2022-07-13 21:59:20,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 21:59:20,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 21:59:20,662 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/28-race_reach_94-alloc_region_racing.i[58135,58148] [2022-07-13 21:59:20,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:59:20,707 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 21:59:20,750 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/28-race_reach_94-alloc_region_racing.i[58135,58148] [2022-07-13 21:59:20,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:59:20,851 INFO L208 MainTranslator]: Completed translation [2022-07-13 21:59:20,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:59:20 WrapperNode [2022-07-13 21:59:20,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 21:59:20,852 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 21:59:20,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 21:59:20,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 21:59:20,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:59:20" (1/1) ... [2022-07-13 21:59:20,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:59:20" (1/1) ... [2022-07-13 21:59:20,924 INFO L137 Inliner]: procedures = 377, calls = 72, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 236 [2022-07-13 21:59:20,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 21:59:20,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 21:59:20,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 21:59:20,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 21:59:20,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:59:20" (1/1) ... [2022-07-13 21:59:20,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:59:20" (1/1) ... [2022-07-13 21:59:20,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:59:20" (1/1) ... [2022-07-13 21:59:20,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:59:20" (1/1) ... [2022-07-13 21:59:20,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:59:20" (1/1) ... [2022-07-13 21:59:20,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:59:20" (1/1) ... [2022-07-13 21:59:20,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:59:20" (1/1) ... [2022-07-13 21:59:20,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 21:59:20,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 21:59:20,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 21:59:20,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 21:59:20,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:59:20" (1/1) ... [2022-07-13 21:59:20,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:59:20,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 21:59:21,002 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) [2022-07-13 21:59:21,006 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 [2022-07-13 21:59:21,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 21:59:21,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 21:59:21,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 21:59:21,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-13 21:59:21,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 21:59:21,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 21:59:21,052 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-13 21:59:21,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 21:59:21,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 21:59:21,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 21:59:21,052 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-13 21:59:21,052 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-13 21:59:21,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 21:59:21,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 21:59:21,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 21:59:21,054 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 21:59:21,180 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 21:59:21,181 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 21:59:21,559 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 21:59:21,567 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 21:59:21,567 INFO L299 CfgBuilder]: Removed 23 assume(true) statements. [2022-07-13 21:59:21,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:59:21 BoogieIcfgContainer [2022-07-13 21:59:21,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 21:59:21,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 21:59:21,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 21:59:21,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 21:59:21,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 09:59:20" (1/3) ... [2022-07-13 21:59:21,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@356c5b27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:59:21, skipping insertion in model container [2022-07-13 21:59:21,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:59:20" (2/3) ... [2022-07-13 21:59:21,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@356c5b27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:59:21, skipping insertion in model container [2022-07-13 21:59:21,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:59:21" (3/3) ... [2022-07-13 21:59:21,577 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2022-07-13 21:59:21,581 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 21:59:21,589 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 21:59:21,590 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-13 21:59:21,590 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 21:59:21,641 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-07-13 21:59:21,670 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 228 places, 254 transitions, 516 flow [2022-07-13 21:59:21,798 INFO L129 PetriNetUnfolder]: 45/362 cut-off events. [2022-07-13 21:59:21,799 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-13 21:59:21,806 INFO L84 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 362 events. 45/362 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1083 event pairs, 0 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 195. Up to 8 conditions per place. [2022-07-13 21:59:21,806 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 254 transitions, 516 flow [2022-07-13 21:59:21,814 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 224 places, 249 transitions, 503 flow [2022-07-13 21:59:21,822 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 21:59:21,827 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6258bb46, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6359419e [2022-07-13 21:59:21,828 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-13 21:59:21,839 INFO L129 PetriNetUnfolder]: 2/98 cut-off events. [2022-07-13 21:59:21,839 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-13 21:59:21,840 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:59:21,840 INFO L200 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2022-07-13 21:59:21,841 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-13 21:59:21,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:59:21,845 INFO L85 PathProgramCache]: Analyzing trace with hash -2053050589, now seen corresponding path program 1 times [2022-07-13 21:59:21,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:59:21,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929361713] [2022-07-13 21:59:21,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:59:21,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:59:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:59:22,055 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 21:59:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:59:22,178 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 21:59:22,180 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 21:59:22,181 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2022-07-13 21:59:22,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-07-13 21:59:22,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-07-13 21:59:22,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-07-13 21:59:22,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 21:59:22,184 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-13 21:59:22,190 WARN L231 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-13 21:59:22,190 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-07-13 21:59:22,245 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-13 21:59:22,249 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 301 places, 338 transitions, 694 flow [2022-07-13 21:59:22,339 INFO L129 PetriNetUnfolder]: 76/579 cut-off events. [2022-07-13 21:59:22,339 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-07-13 21:59:22,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 593 conditions, 579 events. 76/579 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2320 event pairs, 0 based on Foata normal form. 0/494 useless extension candidates. Maximal degree in co-relation 364. Up to 12 conditions per place. [2022-07-13 21:59:22,350 INFO L82 GeneralOperation]: Start removeDead. Operand has 301 places, 338 transitions, 694 flow [2022-07-13 21:59:22,359 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 301 places, 338 transitions, 694 flow [2022-07-13 21:59:22,363 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 21:59:22,365 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6258bb46, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6359419e [2022-07-13 21:59:22,365 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-07-13 21:59:22,385 INFO L129 PetriNetUnfolder]: 3/153 cut-off events. [2022-07-13 21:59:22,386 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-13 21:59:22,386 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:59:22,386 INFO L200 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1] [2022-07-13 21:59:22,387 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-13 21:59:22,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:59:22,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1836237953, now seen corresponding path program 1 times [2022-07-13 21:59:22,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:59:22,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935569703] [2022-07-13 21:59:22,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:59:22,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:59:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:59:22,493 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 21:59:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:59:22,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 21:59:22,548 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 21:59:22,548 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2022-07-13 21:59:22,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-07-13 21:59:22,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-07-13 21:59:22,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-07-13 21:59:22,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-07-13 21:59:22,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 21:59:22,550 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-13 21:59:22,551 WARN L231 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-13 21:59:22,551 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-07-13 21:59:22,600 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-13 21:59:22,607 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 374 places, 422 transitions, 874 flow [2022-07-13 21:59:22,770 INFO L129 PetriNetUnfolder]: 112/829 cut-off events. [2022-07-13 21:59:22,770 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-07-13 21:59:22,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 857 conditions, 829 events. 112/829 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3820 event pairs, 1 based on Foata normal form. 0/706 useless extension candidates. Maximal degree in co-relation 587. Up to 16 conditions per place. [2022-07-13 21:59:22,785 INFO L82 GeneralOperation]: Start removeDead. Operand has 374 places, 422 transitions, 874 flow [2022-07-13 21:59:22,796 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 374 places, 422 transitions, 874 flow [2022-07-13 21:59:22,797 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 21:59:22,802 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6258bb46, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6359419e [2022-07-13 21:59:22,802 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-13 21:59:22,825 INFO L129 PetriNetUnfolder]: 7/249 cut-off events. [2022-07-13 21:59:22,827 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-07-13 21:59:22,827 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:59:22,828 INFO L200 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1] [2022-07-13 21:59:22,828 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 21:59:22,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:59:22,829 INFO L85 PathProgramCache]: Analyzing trace with hash 2036541720, now seen corresponding path program 1 times [2022-07-13 21:59:22,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:59:22,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565438951] [2022-07-13 21:59:22,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:59:22,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:59:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:59:22,907 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 21:59:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:59:22,988 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 21:59:22,989 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 21:59:22,990 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2022-07-13 21:59:22,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-07-13 21:59:22,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2022-07-13 21:59:22,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-07-13 21:59:22,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-07-13 21:59:22,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-07-13 21:59:22,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 21:59:22,992 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-13 21:59:22,993 WARN L231 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-13 21:59:22,993 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-07-13 21:59:23,065 INFO L135 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-07-13 21:59:23,070 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 447 places, 506 transitions, 1056 flow [2022-07-13 21:59:23,323 INFO L129 PetriNetUnfolder]: 160/1147 cut-off events. [2022-07-13 21:59:23,323 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-07-13 21:59:23,353 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 1147 events. 160/1147 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5780 event pairs, 6 based on Foata normal form. 0/978 useless extension candidates. Maximal degree in co-relation 849. Up to 32 conditions per place. [2022-07-13 21:59:23,353 INFO L82 GeneralOperation]: Start removeDead. Operand has 447 places, 506 transitions, 1056 flow [2022-07-13 21:59:23,372 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 447 places, 506 transitions, 1056 flow [2022-07-13 21:59:23,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 21:59:23,379 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6258bb46, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6359419e [2022-07-13 21:59:23,379 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-07-13 21:59:23,441 INFO L129 PetriNetUnfolder]: 21/387 cut-off events. [2022-07-13 21:59:23,441 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-07-13 21:59:23,441 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:59:23,441 INFO L200 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, 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] [2022-07-13 21:59:23,442 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 21:59:23,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:59:23,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1884326887, now seen corresponding path program 1 times [2022-07-13 21:59:23,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:59:23,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976975397] [2022-07-13 21:59:23,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:59:23,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:59:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:59:23,511 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 21:59:23,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:59:23,567 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 21:59:23,567 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 21:59:23,567 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-07-13 21:59:23,568 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-07-13 21:59:23,568 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-07-13 21:59:23,568 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2022-07-13 21:59:23,568 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2022-07-13 21:59:23,569 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-07-13 21:59:23,569 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-07-13 21:59:23,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 21:59:23,569 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-13 21:59:23,574 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2022-07-13 21:59:23,574 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 21:59:23,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 09:59:23 BasicIcfg [2022-07-13 21:59:23,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 21:59:23,742 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 21:59:23,742 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 21:59:23,742 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 21:59:23,742 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:59:21" (3/4) ... [2022-07-13 21:59:23,744 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-13 21:59:23,892 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 21:59:23,892 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 21:59:23,893 INFO L158 Benchmark]: Toolchain (without parser) took 3819.66ms. Allocated memory was 115.3MB in the beginning and 220.2MB in the end (delta: 104.9MB). Free memory was 87.1MB in the beginning and 114.9MB in the end (delta: -27.8MB). Peak memory consumption was 96.4MB. Max. memory is 16.1GB. [2022-07-13 21:59:23,893 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory was 45.0MB in the beginning and 45.0MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 21:59:23,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 777.50ms. Allocated memory is still 115.3MB. Free memory was 87.1MB in the beginning and 59.4MB in the end (delta: 27.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-07-13 21:59:23,894 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.82ms. Allocated memory is still 115.3MB. Free memory was 59.4MB in the beginning and 56.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 21:59:23,894 INFO L158 Benchmark]: Boogie Preprocessor took 41.18ms. Allocated memory is still 115.3MB. Free memory was 56.3MB in the beginning and 54.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 21:59:23,895 INFO L158 Benchmark]: RCFGBuilder took 601.01ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 53.8MB in the beginning and 97.7MB in the end (delta: -43.9MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-07-13 21:59:23,895 INFO L158 Benchmark]: TraceAbstraction took 2168.15ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 96.9MB in the beginning and 77.1MB in the end (delta: 19.8MB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB. [2022-07-13 21:59:23,895 INFO L158 Benchmark]: Witness Printer took 150.74ms. Allocated memory was 167.8MB in the beginning and 220.2MB in the end (delta: 52.4MB). Free memory was 77.1MB in the beginning and 114.9MB in the end (delta: -37.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-07-13 21:59:23,897 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory was 45.0MB in the beginning and 45.0MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 777.50ms. Allocated memory is still 115.3MB. Free memory was 87.1MB in the beginning and 59.4MB in the end (delta: 27.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.82ms. Allocated memory is still 115.3MB. Free memory was 59.4MB in the beginning and 56.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.18ms. Allocated memory is still 115.3MB. Free memory was 56.3MB in the beginning and 54.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 601.01ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 53.8MB in the beginning and 97.7MB in the end (delta: -43.9MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2168.15ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 96.9MB in the beginning and 77.1MB in the end (delta: 19.8MB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB. * Witness Printer took 150.74ms. Allocated memory was 167.8MB in the beginning and 220.2MB in the end (delta: 52.4MB). Free memory was 77.1MB in the beginning and 114.9MB in the end (delta: -37.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1235]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1240] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={3:0}] [L1241-L1244] 0 struct s { int datum; struct s *next; } *A; VAL [__global_lock={3:0}, A={4:0}] [L1253] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}] [L1254] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}] [L1267] 0 struct s *p; VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}] [L1268] 0 A = malloc(sizeof(struct s)) VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, malloc(sizeof(struct s))={9:0}] [L1269] EXPR 0 \read(*A) VAL [\read(*A)={9:0}, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}] [L1269] CALL 0 init(A,3) [L1246] 0 p -> datum = x VAL [\old(x)=3, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, p={9:0}, p={9:0}, x=3] [L1247] 0 p -> next = ((void *)0) VAL [\old(x)=3, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, p={9:0}, p={9:0}, x=3] [L1269] RET 0 init(A,3) [L1270] 0 pthread_t t_ids[10000]; VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, t_ids={14:0}] [L1270] 0 int i=0; VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, i=0, t_ids={14:0}] [L1270] COND TRUE 0 i<10000 VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, i=0, t_ids={14:0}] [L1270] FCALL, FORK 0 pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0)) VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, i=0, pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0))=-1, t_ids={14:0}] [L1256] 1 struct s *p = malloc(sizeof(struct s)); VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, arg={0:0}, arg={0:0}, B_mutex={6:0}, malloc(sizeof(struct s))={-2:0}, p={-2:0}] [L1257] CALL 1 init(p,7) [L1246] 1 p -> datum = x VAL [\old(x)=7, \old(x)=3, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, p={-2:0}, p={9:0}, p={-2:0}, p={9:0}, x=3, x=7] [L1247] 1 p -> next = ((void *)0) VAL [\old(x)=3, \old(x)=7, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, p={9:0}, p={9:0}, p={-2:0}, p={-2:0}, x=7, x=3] [L1257] RET 1 init(p,7) [L1259] CALL 1 insert(p, &A) [L1250] EXPR 1 \read(**list) VAL [\read(**list)={9:0}, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, list={4:0}, list={4:0}, p={-2:0}, p={-2:0}] [L1250] 1 p->next = *list VAL [\read(**list)={9:0}, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, list={4:0}, list={4:0}, p={-2:0}, p={-2:0}] [L1251] 1 *list = p VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, list={4:0}, list={4:0}, p={-2:0}, p={-2:0}] [L1259] RET 1 insert(p, &A) [L1262] COND FALSE 1 !(__VERIFIER_nondet_int()) VAL [__global_lock={3:0}, __VERIFIER_nondet_int()=0, A={4:0}, A_mutex={5:0}, arg={0:0}, arg={0:0}, B_mutex={6:0}, p={-2:0}] [L1262] EXPR 1 p->datum VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, arg={0:0}, arg={0:0}, B_mutex={6:0}, p={-2:0}, p->datum=7] [L1262] CALL 1 __VERIFIER_assert((p->datum) == 0) [L1235] COND TRUE 1 !(cond) VAL [\old(cond)=0, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, cond=0] [L1235] 1 reach_error() VAL [\old(cond)=0, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, cond=0] - UnprovableResult [Line: 1235]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1270]: 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, 297 locations, 4 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: 0.5s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=503occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 368 locations, 5 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: 0.3s, OverallIterations: 1, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=694occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 439 locations, 6 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: 0.4s, OverallIterations: 1, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=874occurred 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, 87 NumberOfCodeBlocks, 87 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 - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 510 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1056occurred 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, 96 NumberOfCodeBlocks, 96 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! [2022-07-13 21:59:23,936 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... --- 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