./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 06:09:48,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:09:48,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:09:48,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:09:48,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:09:48,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:09:48,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:09:48,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:09:48,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:09:48,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:09:48,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:09:48,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:09:48,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:09:48,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:09:48,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:09:48,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:09:48,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:09:48,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:09:48,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:09:48,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:09:48,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:09:48,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:09:48,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:09:48,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:09:48,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:09:48,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:09:48,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:09:48,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:09:48,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:09:48,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:09:48,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:09:48,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:09:48,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:09:48,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:09:48,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:09:48,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:09:48,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:09:48,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:09:48,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:09:48,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:09:48,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:09:48,111 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 06:09:48,132 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:09:48,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:09:48,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:09:48,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:09:48,134 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:09:48,134 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:09:48,134 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:09:48,142 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:09:48,142 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:09:48,142 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:09:48,143 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:09:48,143 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:09:48,143 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:09:48,143 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:09:48,143 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:09:48,143 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:09:48,144 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:09:48,144 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:09:48,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:09:48,145 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:09:48,145 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:09:48,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:09:48,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:09:48,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:09:48,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:09:48,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:09:48,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:09:48,146 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 06:09:48,146 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:09:48,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:09:48,146 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:09:48,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:09:48,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:09:48,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:09:48,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:09:48,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:09:48,147 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:09:48,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:09:48,147 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:09:48,148 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:09:48,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:09:48,148 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:09:48,148 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:09:48,148 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 [2022-12-14 06:09:48,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:09:48,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:09:48,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:09:48,349 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:09:48,349 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:09:48,350 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2022-12-14 06:09:50,915 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:09:51,108 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:09:51,108 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2022-12-14 06:09:51,120 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/data/a799eb71a/3415f25b868742b9a24f255ba0311c69/FLAGbab4a4bcc [2022-12-14 06:09:51,474 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/data/a799eb71a/3415f25b868742b9a24f255ba0311c69 [2022-12-14 06:09:51,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:09:51,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:09:51,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:09:51,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:09:51,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:09:51,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:09:51" (1/1) ... [2022-12-14 06:09:51,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4795b864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:51, skipping insertion in model container [2022-12-14 06:09:51,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:09:51" (1/1) ... [2022-12-14 06:09:51,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:09:51,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:09:51,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:09:51,765 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:09:51,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:09:51,814 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:09:51,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:51 WrapperNode [2022-12-14 06:09:51,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:09:51,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:09:51,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:09:51,816 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:09:51,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:51" (1/1) ... [2022-12-14 06:09:51,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:51" (1/1) ... [2022-12-14 06:09:51,861 INFO L138 Inliner]: procedures = 161, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-12-14 06:09:51,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:09:51,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:09:51,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:09:51,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:09:51,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:51" (1/1) ... [2022-12-14 06:09:51,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:51" (1/1) ... [2022-12-14 06:09:51,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:51" (1/1) ... [2022-12-14 06:09:51,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:51" (1/1) ... [2022-12-14 06:09:51,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:51" (1/1) ... [2022-12-14 06:09:51,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:51" (1/1) ... [2022-12-14 06:09:51,888 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:51" (1/1) ... [2022-12-14 06:09:51,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:51" (1/1) ... [2022-12-14 06:09:51,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:09:51,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:09:51,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:09:51,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:09:51,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:51" (1/1) ... [2022-12-14 06:09:51,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:09:51,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:09:51,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:09:51,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:09:51,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 06:09:51,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 06:09:51,950 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 06:09:51,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:09:51,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:09:51,950 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 06:09:51,950 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 06:09:51,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:09:51,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:09:51,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:09:51,951 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 06:09:52,055 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:09:52,057 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:09:52,253 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:09:52,260 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:09:52,260 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:09:52,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:09:52 BoogieIcfgContainer [2022-12-14 06:09:52,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:09:52,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:09:52,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:09:52,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:09:52,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:09:51" (1/3) ... [2022-12-14 06:09:52,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5431af23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:09:52, skipping insertion in model container [2022-12-14 06:09:52,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:51" (2/3) ... [2022-12-14 06:09:52,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5431af23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:09:52, skipping insertion in model container [2022-12-14 06:09:52,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:09:52" (3/3) ... [2022-12-14 06:09:52,271 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2022-12-14 06:09:52,280 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 06:09:52,290 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:09:52,290 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 06:09:52,291 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 06:09:52,335 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 06:09:52,359 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 06:09:52,380 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 105 transitions, 215 flow [2022-12-14 06:09:52,382 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 105 transitions, 215 flow [2022-12-14 06:09:52,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 105 transitions, 215 flow [2022-12-14 06:09:52,425 INFO L130 PetriNetUnfolder]: 2/104 cut-off events. [2022-12-14 06:09:52,425 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 06:09:52,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 104 events. 2/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2022-12-14 06:09:52,429 INFO L119 LiptonReduction]: Number of co-enabled transitions 2600 [2022-12-14 06:09:55,179 INFO L134 LiptonReduction]: Checked pairs total: 10193 [2022-12-14 06:09:55,179 INFO L136 LiptonReduction]: Total number of compositions: 73 [2022-12-14 06:09:55,185 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 39 transitions, 83 flow [2022-12-14 06:09:55,206 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 322 states, 308 states have (on average 1.9675324675324675) internal successors, (606), 321 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:55,219 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:09:55,224 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=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6f29dc5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:09:55,224 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-12-14 06:09:55,226 INFO L276 IsEmpty]: Start isEmpty. Operand has 322 states, 308 states have (on average 1.9675324675324675) internal successors, (606), 321 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:55,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 06:09:55,229 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:09:55,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 06:09:55,230 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-12-14 06:09:55,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:09:55,233 INFO L85 PathProgramCache]: Analyzing trace with hash 10635605, now seen corresponding path program 1 times [2022-12-14 06:09:55,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:09:55,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468785692] [2022-12-14 06:09:55,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:09:55,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:09:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:09:55,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:09:55,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:09:55,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468785692] [2022-12-14 06:09:55,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468785692] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:09:55,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:09:55,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:09:55,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222014704] [2022-12-14 06:09:55,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:09:55,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:09:55,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:09:55,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:09:55,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:09:55,409 INFO L87 Difference]: Start difference. First operand has 322 states, 308 states have (on average 1.9675324675324675) internal successors, (606), 321 states have internal predecessors, (606), 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:55,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:09:55,458 INFO L93 Difference]: Finished difference Result 289 states and 541 transitions. [2022-12-14 06:09:55,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:09:55,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-12-14 06:09:55,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:09:55,467 INFO L225 Difference]: With dead ends: 289 [2022-12-14 06:09:55,467 INFO L226 Difference]: Without dead ends: 289 [2022-12-14 06:09:55,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:09:55,470 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:09:55,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:09:55,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-12-14 06:09:55,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2022-12-14 06:09:55,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 281 states have (on average 1.9252669039145907) internal successors, (541), 288 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:55,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 541 transitions. [2022-12-14 06:09:55,505 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 541 transitions. Word has length 4 [2022-12-14 06:09:55,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:09:55,505 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 541 transitions. [2022-12-14 06:09:55,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:55,506 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 541 transitions. [2022-12-14 06:09:55,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 06:09:55,506 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:09:55,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:09:55,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:09:55,506 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-12-14 06:09:55,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:09:55,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1868110484, now seen corresponding path program 1 times [2022-12-14 06:09:55,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:09:55,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617421214] [2022-12-14 06:09:55,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:09:55,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:09:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:09:55,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:09:55,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:09:55,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617421214] [2022-12-14 06:09:55,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617421214] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:09:55,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454227279] [2022-12-14 06:09:55,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:09:55,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:09:55,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:09:55,579 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:09:55,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:09:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:09:55,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:09:55,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:09:55,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:09:55,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:09:55,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:09:55,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454227279] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:09:55,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1747635974] [2022-12-14 06:09:55,701 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 06:09:55,702 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:09:55,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-14 06:09:55,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651760384] [2022-12-14 06:09:55,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:09:55,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 06:09:55,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:09:55,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 06:09:55,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-14 06:09:55,705 INFO L87 Difference]: Start difference. First operand 289 states and 541 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:55,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:09:55,767 INFO L93 Difference]: Finished difference Result 292 states and 544 transitions. [2022-12-14 06:09:55,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:09:55,768 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 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) Word has length 11 [2022-12-14 06:09:55,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:09:55,770 INFO L225 Difference]: With dead ends: 292 [2022-12-14 06:09:55,770 INFO L226 Difference]: Without dead ends: 292 [2022-12-14 06:09:55,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-14 06:09:55,771 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:09:55,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:09:55,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-12-14 06:09:55,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2022-12-14 06:09:55,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 284 states have (on average 1.9154929577464788) internal successors, (544), 291 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:55,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 544 transitions. [2022-12-14 06:09:55,788 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 544 transitions. Word has length 11 [2022-12-14 06:09:55,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:09:55,789 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 544 transitions. [2022-12-14 06:09:55,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:55,789 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 544 transitions. [2022-12-14 06:09:55,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 06:09:55,790 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:09:55,790 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:09:55,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:09:55,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:09:55,992 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-12-14 06:09:55,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:09:55,993 INFO L85 PathProgramCache]: Analyzing trace with hash 528544562, now seen corresponding path program 2 times [2022-12-14 06:09:55,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:09:55,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073924158] [2022-12-14 06:09:55,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:09:55,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:09:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:09:56,427 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 06:09:56,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:09:56,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073924158] [2022-12-14 06:09:56,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073924158] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:09:56,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:09:56,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:09:56,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570440553] [2022-12-14 06:09:56,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:09:56,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 06:09:56,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:09:56,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 06:09:56,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:09:56,429 INFO L87 Difference]: Start difference. First operand 292 states and 544 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:56,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:09:56,736 INFO L93 Difference]: Finished difference Result 467 states and 870 transitions. [2022-12-14 06:09:56,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:09:56,737 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) Word has length 14 [2022-12-14 06:09:56,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:09:56,740 INFO L225 Difference]: With dead ends: 467 [2022-12-14 06:09:56,740 INFO L226 Difference]: Without dead ends: 467 [2022-12-14 06:09:56,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:09:56,749 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 57 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:09:56,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 12 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 06:09:56,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-12-14 06:09:56,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 347. [2022-12-14 06:09:56,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 340 states have (on average 1.9352941176470588) internal successors, (658), 346 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:56,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 658 transitions. [2022-12-14 06:09:56,770 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 658 transitions. Word has length 14 [2022-12-14 06:09:56,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:09:56,770 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 658 transitions. [2022-12-14 06:09:56,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:56,771 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 658 transitions. [2022-12-14 06:09:56,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 06:09:56,772 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:09:56,772 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:09:56,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:09:56,772 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-12-14 06:09:56,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:09:56,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1452765870, now seen corresponding path program 1 times [2022-12-14 06:09:56,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:09:56,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443692184] [2022-12-14 06:09:56,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:09:56,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:09:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:09:56,862 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:09:56,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:09:56,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443692184] [2022-12-14 06:09:56,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443692184] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:09:56,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765833243] [2022-12-14 06:09:56,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:09:56,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:09:56,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:09:56,864 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:09:56,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 06:09:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:09:56,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 06:09:56,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:09:56,949 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:09:56,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:09:56,989 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:09:56,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765833243] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:09:56,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1719661479] [2022-12-14 06:09:56,990 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 06:09:56,991 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:09:56,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-12-14 06:09:56,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415664828] [2022-12-14 06:09:56,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:09:56,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 06:09:56,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:09:56,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 06:09:56,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-14 06:09:56,993 INFO L87 Difference]: Start difference. First operand 347 states and 658 transitions. Second operand has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:57,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:09:57,035 INFO L93 Difference]: Finished difference Result 353 states and 664 transitions. [2022-12-14 06:09:57,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 06:09:57,035 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 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) Word has length 20 [2022-12-14 06:09:57,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:09:57,037 INFO L225 Difference]: With dead ends: 353 [2022-12-14 06:09:57,037 INFO L226 Difference]: Without dead ends: 353 [2022-12-14 06:09:57,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-14 06:09:57,038 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:09:57,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:09:57,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-12-14 06:09:57,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2022-12-14 06:09:57,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 346 states have (on average 1.9190751445086704) internal successors, (664), 352 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:57,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 664 transitions. [2022-12-14 06:09:57,046 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 664 transitions. Word has length 20 [2022-12-14 06:09:57,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:09:57,046 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 664 transitions. [2022-12-14 06:09:57,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:57,047 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 664 transitions. [2022-12-14 06:09:57,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 06:09:57,047 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:09:57,047 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:09:57,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 06:09:57,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:09:57,249 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-12-14 06:09:57,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:09:57,250 INFO L85 PathProgramCache]: Analyzing trace with hash 253249390, now seen corresponding path program 2 times [2022-12-14 06:09:57,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:09:57,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537251351] [2022-12-14 06:09:57,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:09:57,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:09:57,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:09:57,581 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 06:09:57,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:09:57,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537251351] [2022-12-14 06:09:57,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537251351] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:09:57,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:09:57,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:09:57,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066419748] [2022-12-14 06:09:57,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:09:57,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 06:09:57,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:09:57,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 06:09:57,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:09:57,584 INFO L87 Difference]: Start difference. First operand 353 states and 664 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:57,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:09:57,873 INFO L93 Difference]: Finished difference Result 462 states and 862 transitions. [2022-12-14 06:09:57,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:09:57,874 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) Word has length 26 [2022-12-14 06:09:57,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:09:57,876 INFO L225 Difference]: With dead ends: 462 [2022-12-14 06:09:57,876 INFO L226 Difference]: Without dead ends: 430 [2022-12-14 06:09:57,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:09:57,877 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:09:57,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 16 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 06:09:57,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-12-14 06:09:57,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 380. [2022-12-14 06:09:57,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 373 states have (on average 1.9088471849865951) internal successors, (712), 379 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:57,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 712 transitions. [2022-12-14 06:09:57,890 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 712 transitions. Word has length 26 [2022-12-14 06:09:57,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:09:57,891 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 712 transitions. [2022-12-14 06:09:57,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:57,891 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 712 transitions. [2022-12-14 06:09:57,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 06:09:57,892 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:09:57,892 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:09:57,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 06:09:57,893 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-12-14 06:09:57,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:09:57,893 INFO L85 PathProgramCache]: Analyzing trace with hash -325884252, now seen corresponding path program 1 times [2022-12-14 06:09:57,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:09:57,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620355260] [2022-12-14 06:09:57,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:09:57,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:09:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:09:58,150 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 06:09:58,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:09:58,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620355260] [2022-12-14 06:09:58,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620355260] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:09:58,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:09:58,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:09:58,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121472037] [2022-12-14 06:09:58,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:09:58,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 06:09:58,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:09:58,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 06:09:58,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:09:58,152 INFO L87 Difference]: Start difference. First operand 380 states and 712 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:58,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:09:58,340 INFO L93 Difference]: Finished difference Result 489 states and 896 transitions. [2022-12-14 06:09:58,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:09:58,341 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) Word has length 26 [2022-12-14 06:09:58,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:09:58,343 INFO L225 Difference]: With dead ends: 489 [2022-12-14 06:09:58,343 INFO L226 Difference]: Without dead ends: 457 [2022-12-14 06:09:58,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:09:58,344 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:09:58,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 16 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:09:58,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-12-14 06:09:58,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 389. [2022-12-14 06:09:58,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 382 states have (on average 1.869109947643979) internal successors, (714), 388 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:58,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 714 transitions. [2022-12-14 06:09:58,357 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 714 transitions. Word has length 26 [2022-12-14 06:09:58,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:09:58,358 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 714 transitions. [2022-12-14 06:09:58,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:58,358 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 714 transitions. [2022-12-14 06:09:58,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 06:09:58,359 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:09:58,359 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:09:58,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 06:09:58,359 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-12-14 06:09:58,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:09:58,360 INFO L85 PathProgramCache]: Analyzing trace with hash -961378280, now seen corresponding path program 1 times [2022-12-14 06:09:58,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:09:58,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149423628] [2022-12-14 06:09:58,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:09:58,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:09:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:09:58,455 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 06:09:58,455 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:09:58,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149423628] [2022-12-14 06:09:58,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149423628] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:09:58,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:09:58,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:09:58,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573133582] [2022-12-14 06:09:58,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:09:58,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:09:58,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:09:58,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:09:58,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:09:58,457 INFO L87 Difference]: Start difference. First operand 389 states and 714 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:58,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:09:58,476 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2022-12-14 06:09:58,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:09:58,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) Word has length 29 [2022-12-14 06:09:58,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:09:58,477 INFO L225 Difference]: With dead ends: 38 [2022-12-14 06:09:58,477 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 06:09:58,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:09:58,478 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:09:58,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 16 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:09:58,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 06:09:58,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 06:09:58,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:58,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 06:09:58,479 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2022-12-14 06:09:58,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:09:58,480 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 06:09:58,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:58,480 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 06:09:58,480 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 06:09:58,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2022-12-14 06:09:58,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2022-12-14 06:09:58,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2022-12-14 06:09:58,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2022-12-14 06:09:58,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2022-12-14 06:09:58,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2022-12-14 06:09:58,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2022-12-14 06:09:58,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2022-12-14 06:09:58,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2022-12-14 06:09:58,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 06:09:58,486 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2022-12-14 06:09:58,490 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 06:09:58,490 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:09:58,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:09:58 BasicIcfg [2022-12-14 06:09:58,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:09:58,493 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:09:58,493 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:09:58,493 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:09:58,494 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:09:52" (3/4) ... [2022-12-14 06:09:58,496 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 06:09:58,502 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-14 06:09:58,505 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-12-14 06:09:58,505 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 06:09:58,506 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 06:09:58,535 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 06:09:58,535 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:09:58,536 INFO L158 Benchmark]: Toolchain (without parser) took 7059.12ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 94.7MB in the beginning and 101.0MB in the end (delta: -6.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-14 06:09:58,536 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 132.1MB. Free memory is still 98.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:09:58,536 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.18ms. Allocated memory is still 132.1MB. Free memory was 94.3MB in the beginning and 75.2MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 06:09:58,537 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.05ms. Allocated memory is still 132.1MB. Free memory was 75.2MB in the beginning and 73.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:09:58,537 INFO L158 Benchmark]: Boogie Preprocessor took 29.46ms. Allocated memory is still 132.1MB. Free memory was 73.1MB in the beginning and 71.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:09:58,537 INFO L158 Benchmark]: RCFGBuilder took 369.75ms. Allocated memory is still 132.1MB. Free memory was 71.1MB in the beginning and 54.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 06:09:58,537 INFO L158 Benchmark]: TraceAbstraction took 6228.05ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 53.9MB in the beginning and 104.2MB in the end (delta: -50.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:09:58,538 INFO L158 Benchmark]: Witness Printer took 42.19ms. Allocated memory is still 165.7MB. Free memory was 104.2MB in the beginning and 101.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 06:09:58,539 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 132.1MB. Free memory is still 98.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.18ms. Allocated memory is still 132.1MB. Free memory was 94.3MB in the beginning and 75.2MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.05ms. Allocated memory is still 132.1MB. Free memory was 75.2MB in the beginning and 73.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.46ms. Allocated memory is still 132.1MB. Free memory was 73.1MB in the beginning and 71.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 369.75ms. Allocated memory is still 132.1MB. Free memory was 71.1MB in the beginning and 54.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6228.05ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 53.9MB in the beginning and 104.2MB in the end (delta: -50.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 42.19ms. Allocated memory is still 165.7MB. Free memory was 104.2MB in the beginning and 101.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 107 PlacesBefore, 42 PlacesAfterwards, 105 TransitionsBefore, 39 TransitionsAfterwards, 2600 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 73 TotalNumberOfCompositions, 10193 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3385, independent: 2983, independent conditional: 0, independent unconditional: 2983, dependent: 402, dependent conditional: 0, dependent unconditional: 402, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1596, independent: 1508, independent conditional: 0, independent unconditional: 1508, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1596, independent: 1259, independent conditional: 0, independent unconditional: 1259, dependent: 337, dependent conditional: 0, dependent unconditional: 337, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 337, independent: 249, independent conditional: 0, independent unconditional: 249, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 608, independent: 432, independent conditional: 0, independent unconditional: 432, dependent: 176, dependent conditional: 0, dependent unconditional: 176, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3385, independent: 1475, independent conditional: 0, independent unconditional: 1475, dependent: 314, dependent conditional: 0, dependent unconditional: 314, unknown: 1596, unknown conditional: 0, unknown unconditional: 1596] , Statistics on independence cache: Total cache size (in pairs): 261, Positive cache size: 208, Positive conditional cache size: 0, Positive unconditional cache size: 208, Negative cache size: 53, Negative conditional cache size: 0, Negative unconditional cache size: 53, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown 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 - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 131 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 7, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 134 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 134 mSDsluCounter, 240 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 120 mSDsCounter, 108 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 922 IncrementalHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 108 mSolverCounterUnsat, 120 mSDtfsCounter, 922 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=389occurred in iteration=6, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 238 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 181 ConstructedInterpolants, 0 QuantifiedInterpolants, 508 SizeOfPredicates, 0 NumberOfNonLiveVariables, 245 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 175/208 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 06:09:58,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf3f0ca-03cb-442a-912b-874ba9664bb3/bin/utaipan-gh47qXpMRh/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 Result: TRUE