./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/bin/utaipan-SDwSMHVbGG --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f63cf71edcde02dd3b46dcca5535f3ea4a873c298064fe307da2067f0af71187 ....................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 06:00:50,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 06:00:50,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 06:00:50,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 06:00:50,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 06:00:50,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 06:00:50,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 06:00:50,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 06:00:50,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 06:00:50,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 06:00:50,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 06:00:50,998 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 06:00:50,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 06:00:51,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 06:00:51,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 06:00:51,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 06:00:51,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 06:00:51,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 06:00:51,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 06:00:51,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 06:00:51,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 06:00:51,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 06:00:51,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 06:00:51,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 06:00:51,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 06:00:51,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 06:00:51,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 06:00:51,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 06:00:51,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 06:00:51,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 06:00:51,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 06:00:51,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 06:00:51,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 06:00:51,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 06:00:51,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 06:00:51,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 06:00:51,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 06:00:51,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 06:00:51,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 06:00:51,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 06:00:51,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 06:00:51,039 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 06:00:51,074 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 06:00:51,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 06:00:51,075 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 06:00:51,075 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 06:00:51,075 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 06:00:51,076 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 06:00:51,076 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 06:00:51,076 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 06:00:51,076 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 06:00:51,076 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 06:00:51,077 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 06:00:51,083 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 06:00:51,084 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 06:00:51,084 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 06:00:51,084 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 06:00:51,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 06:00:51,085 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 06:00:51,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 06:00:51,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 06:00:51,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 06:00:51,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 06:00:51,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 06:00:51,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 06:00:51,087 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 06:00:51,087 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 06:00:51,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 06:00:51,087 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 06:00:51,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 06:00:51,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 06:00:51,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 06:00:51,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 06:00:51,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 06:00:51,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 06:00:51,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 06:00:51,090 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 06:00:51,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 06:00:51,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 06:00:51,092 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 06:00:51,092 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 06:00:51,092 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f63cf71edcde02dd3b46dcca5535f3ea4a873c298064fe307da2067f0af71187 [2021-10-29 06:00:51,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 06:00:51,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 06:00:51,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 06:00:51,407 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 06:00:51,408 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 06:00:51,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2021-10-29 06:00:51,495 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/bin/utaipan-SDwSMHVbGG/data/83bad8cc2/11b019b422944499aa915966026fa2ff/FLAG80f093304 [2021-10-29 06:00:52,015 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 06:00:52,016 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2021-10-29 06:00:52,044 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/bin/utaipan-SDwSMHVbGG/data/83bad8cc2/11b019b422944499aa915966026fa2ff/FLAG80f093304 [2021-10-29 06:00:52,316 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/bin/utaipan-SDwSMHVbGG/data/83bad8cc2/11b019b422944499aa915966026fa2ff [2021-10-29 06:00:52,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 06:00:52,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 06:00:52,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 06:00:52,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 06:00:52,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 06:00:52,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:00:52" (1/1) ... [2021-10-29 06:00:52,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@771de685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:52, skipping insertion in model container [2021-10-29 06:00:52,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:00:52" (1/1) ... [2021-10-29 06:00:52,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 06:00:52,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 06:00:52,578 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i[840,853] [2021-10-29 06:00:52,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 06:00:52,806 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 06:00:52,823 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i[840,853] [2021-10-29 06:00:52,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 06:00:52,915 INFO L208 MainTranslator]: Completed translation [2021-10-29 06:00:52,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:52 WrapperNode [2021-10-29 06:00:52,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 06:00:52,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 06:00:52,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 06:00:52,917 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 06:00:52,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:52" (1/1) ... [2021-10-29 06:00:52,955 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:52" (1/1) ... [2021-10-29 06:00:52,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 06:00:52,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 06:00:52,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 06:00:52,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 06:00:52,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:52" (1/1) ... [2021-10-29 06:00:52,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:52" (1/1) ... [2021-10-29 06:00:53,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:52" (1/1) ... [2021-10-29 06:00:53,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:52" (1/1) ... [2021-10-29 06:00:53,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:52" (1/1) ... [2021-10-29 06:00:53,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:52" (1/1) ... [2021-10-29 06:00:53,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:52" (1/1) ... [2021-10-29 06:00:53,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 06:00:53,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 06:00:53,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 06:00:53,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 06:00:53,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:52" (1/1) ... [2021-10-29 06:00:53,045 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 06:00:53,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 06:00:53,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 06:00:53,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 06:00:53,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 06:00:53,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 06:00:53,134 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-29 06:00:53,134 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-29 06:00:53,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 06:00:53,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 06:00:53,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 06:00:53,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 06:00:53,137 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-29 06:00:53,482 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 06:00:53,483 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-29 06:00:53,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:00:53 BoogieIcfgContainer [2021-10-29 06:00:53,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 06:00:53,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 06:00:53,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 06:00:53,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 06:00:53,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 06:00:52" (1/3) ... [2021-10-29 06:00:53,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b38711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:00:53, skipping insertion in model container [2021-10-29 06:00:53,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:52" (2/3) ... [2021-10-29 06:00:53,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b38711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:00:53, skipping insertion in model container [2021-10-29 06:00:53,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:00:53" (3/3) ... [2021-10-29 06:00:53,494 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_neg.i [2021-10-29 06:00:53,500 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-29 06:00:53,500 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 06:00:53,500 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 06:00:53,501 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-29 06:00:53,537 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,538 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,538 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,538 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,538 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,539 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,539 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,539 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,540 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,540 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,542 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,542 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,543 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,543 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,544 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,546 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,546 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,547 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,548 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,548 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,548 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,549 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,549 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,549 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,550 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,551 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,552 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,552 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,553 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,553 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,554 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,555 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,555 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,555 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,560 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,563 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,563 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,564 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,564 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,564 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,564 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,565 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 06:00:53,571 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-29 06:00:53,631 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 06:00:53,641 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=FINITE_AUTOMATA, 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 [2021-10-29 06:00:53,641 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-29 06:00:53,659 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-29 06:00:53,683 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 37 transitions, 79 flow [2021-10-29 06:00:53,686 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 37 transitions, 79 flow [2021-10-29 06:00:53,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 37 transitions, 79 flow [2021-10-29 06:00:53,735 INFO L129 PetriNetUnfolder]: 1/36 cut-off events. [2021-10-29 06:00:53,736 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-29 06:00:53,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 1/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2021-10-29 06:00:53,744 INFO L116 LiptonReduction]: Number of co-enabled transitions 196 [2021-10-29 06:00:55,676 INFO L131 LiptonReduction]: Checked pairs total: 141 [2021-10-29 06:00:55,676 INFO L133 LiptonReduction]: Total number of compositions: 38 [2021-10-29 06:00:55,685 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 10 places, 6 transitions, 17 flow [2021-10-29 06:00:55,694 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2021-10-29 06:00:55,696 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2021-10-29 06:00:55,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 06:00:55,701 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 06:00:55,702 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-29 06:00:55,703 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 06:00:55,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 06:00:55,708 INFO L85 PathProgramCache]: Analyzing trace with hash 157763, now seen corresponding path program 1 times [2021-10-29 06:00:55,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 06:00:55,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779400235] [2021-10-29 06:00:55,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 06:00:55,719 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 06:00:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 06:00:55,837 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 06:00:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 06:00:55,878 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 06:00:55,880 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 06:00:55,881 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 06:00:55,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-29 06:00:55,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 06:00:55,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 06:00:55,886 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-29 06:00:55,891 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-29 06:00:55,891 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 06:00:55,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 06:00:55 BasicIcfg [2021-10-29 06:00:55,910 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 06:00:55,912 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 06:00:55,913 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 06:00:55,913 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 06:00:55,916 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:00:53" (3/4) ... [2021-10-29 06:00:55,919 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 06:00:55,973 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 06:00:55,973 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 06:00:55,977 INFO L168 Benchmark]: Toolchain (without parser) took 3653.72 ms. Allocated memory was 130.0 MB in the beginning and 161.5 MB in the end (delta: 31.5 MB). Free memory was 87.7 MB in the beginning and 70.0 MB in the end (delta: 17.8 MB). Peak memory consumption was 47.3 MB. Max. memory is 16.1 GB. [2021-10-29 06:00:55,978 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 130.0 MB. Free memory is still 105.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 06:00:55,982 INFO L168 Benchmark]: CACSL2BoogieTranslator took 580.49 ms. Allocated memory is still 130.0 MB. Free memory was 87.6 MB in the beginning and 95.3 MB in the end (delta: -7.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 06:00:55,984 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.14 ms. Allocated memory is still 130.0 MB. Free memory was 95.3 MB in the beginning and 93.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 06:00:55,985 INFO L168 Benchmark]: Boogie Preprocessor took 51.85 ms. Allocated memory is still 130.0 MB. Free memory was 93.7 MB in the beginning and 92.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 06:00:55,985 INFO L168 Benchmark]: RCFGBuilder took 451.58 ms. Allocated memory is still 130.0 MB. Free memory was 92.6 MB in the beginning and 82.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 06:00:55,986 INFO L168 Benchmark]: TraceAbstraction took 2424.06 ms. Allocated memory was 130.0 MB in the beginning and 161.5 MB in the end (delta: 31.5 MB). Free memory was 82.2 MB in the beginning and 72.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 16.1 GB. [2021-10-29 06:00:55,986 INFO L168 Benchmark]: Witness Printer took 61.08 ms. Allocated memory is still 161.5 MB. Free memory was 72.1 MB in the beginning and 70.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 06:00:55,989 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 130.0 MB. Free memory is still 105.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 580.49 ms. Allocated memory is still 130.0 MB. Free memory was 87.6 MB in the beginning and 95.3 MB in the end (delta: -7.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.14 ms. Allocated memory is still 130.0 MB. Free memory was 95.3 MB in the beginning and 93.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.85 ms. Allocated memory is still 130.0 MB. Free memory was 93.7 MB in the beginning and 92.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 451.58 ms. Allocated memory is still 130.0 MB. Free memory was 92.6 MB in the beginning and 82.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2424.06 ms. Allocated memory was 130.0 MB in the beginning and 161.5 MB in the end (delta: 31.5 MB). Free memory was 82.2 MB in the beginning and 72.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 16.1 GB. * Witness Printer took 61.08 ms. Allocated memory is still 161.5 MB. Free memory was 72.1 MB in the beginning and 70.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 40 PlacesBefore, 10 PlacesAfterwards, 37 TransitionsBefore, 6 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 38 TotalNumberOfCompositions, 141 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 141, positive: 141, positive conditional: 0, positive unconditional: 141, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 129, positive: 129, positive conditional: 0, positive unconditional: 129, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 129, positive: 129, positive conditional: 0, positive unconditional: 129, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 141, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 129, unknown conditional: 0, unknown unconditional: 129] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - 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: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int x = 3; [L683] 0 pthread_t id; [L684] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) [L677] 1 int x = __VERIFIER_nondet_int(); [L13] COND TRUE 1 !(cond) [L13] 1 reach_error() - UnprovableResult [Line: 684]: 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, 52 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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, 3 NumberOfCodeBlocks, 3 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! [2021-10-29 06:00:56,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab52e93c-d690-4fa5-be05-d9accceed742/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...