./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI --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 0e635f0fe47aceede1c472bdc8d824736c973da1578eefbb4d4eeab774d2111f --- 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-5e519f3 [2022-11-03 03:28:35,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:28:35,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:28:35,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:28:35,957 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:28:35,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:28:35,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:28:35,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:28:35,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:28:35,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:28:35,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:28:35,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:28:35,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:28:35,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:28:35,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:28:35,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:28:35,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:28:35,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:28:35,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:28:36,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:28:36,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:28:36,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:28:36,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:28:36,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:28:36,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:28:36,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:28:36,019 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:28:36,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:28:36,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:28:36,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:28:36,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:28:36,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:28:36,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:28:36,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:28:36,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:28:36,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:28:36,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:28:36,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:28:36,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:28:36,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:28:36,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:28:36,036 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 03:28:36,076 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:28:36,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:28:36,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:28:36,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:28:36,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:28:36,079 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:28:36,079 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:28:36,079 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:28:36,079 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:28:36,079 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:28:36,081 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:28:36,081 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:28:36,081 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:28:36,081 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:28:36,081 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:28:36,082 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:28:36,082 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:28:36,082 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:28:36,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:28:36,083 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:28:36,083 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 03:28:36,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:28:36,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:28:36,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:28:36,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:28:36,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:28:36,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:28:36,086 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 03:28:36,086 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:28:36,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:28:36,087 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:28:36,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:28:36,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:28:36,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:28:36,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:28:36,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:28:36,088 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:28:36,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:28:36,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:28:36,089 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:28:36,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:28:36,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:28:36,089 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:28:36,090 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_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e635f0fe47aceede1c472bdc8d824736c973da1578eefbb4d4eeab774d2111f [2022-11-03 03:28:36,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:28:36,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:28:36,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:28:36,410 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:28:36,411 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:28:36,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i [2022-11-03 03:28:36,511 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/data/2e2d31a3e/b36f3fda89ca4cc8bef05a52c9e4bcf7/FLAG5cda39c78 [2022-11-03 03:28:37,062 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:28:37,063 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i [2022-11-03 03:28:37,076 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/data/2e2d31a3e/b36f3fda89ca4cc8bef05a52c9e4bcf7/FLAG5cda39c78 [2022-11-03 03:28:37,361 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/data/2e2d31a3e/b36f3fda89ca4cc8bef05a52c9e4bcf7 [2022-11-03 03:28:37,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:28:37,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:28:37,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:28:37,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:28:37,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:28:37,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:28:37" (1/1) ... [2022-11-03 03:28:37,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77f07537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:37, skipping insertion in model container [2022-11-03 03:28:37,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:28:37" (1/1) ... [2022-11-03 03:28:37,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:28:37,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:28:37,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:28:37,816 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:28:37,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:28:37,893 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:28:37,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:37 WrapperNode [2022-11-03 03:28:37,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:28:37,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:28:37,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:28:37,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:28:37,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:37" (1/1) ... [2022-11-03 03:28:37,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:37" (1/1) ... [2022-11-03 03:28:37,971 INFO L138 Inliner]: procedures = 161, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-11-03 03:28:37,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:28:37,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:28:37,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:28:37,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:28:37,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:37" (1/1) ... [2022-11-03 03:28:37,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:37" (1/1) ... [2022-11-03 03:28:37,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:37" (1/1) ... [2022-11-03 03:28:38,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:37" (1/1) ... [2022-11-03 03:28:38,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:37" (1/1) ... [2022-11-03 03:28:38,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:37" (1/1) ... [2022-11-03 03:28:38,025 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:37" (1/1) ... [2022-11-03 03:28:38,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:37" (1/1) ... [2022-11-03 03:28:38,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:28:38,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:28:38,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:28:38,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:28:38,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:37" (1/1) ... [2022-11-03 03:28:38,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:28:38,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:28:38,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:28:38,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:28:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:28:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:28:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-03 03:28:38,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:28:38,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:28:38,130 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-03 03:28:38,130 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-03 03:28:38,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:28:38,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:28:38,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:28:38,132 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 03:28:38,298 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:28:38,313 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:28:38,673 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:28:38,680 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:28:38,693 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:28:38,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:28:38 BoogieIcfgContainer [2022-11-03 03:28:38,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:28:38,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:28:38,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:28:38,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:28:38,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:28:37" (1/3) ... [2022-11-03 03:28:38,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad6be00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:28:38, skipping insertion in model container [2022-11-03 03:28:38,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:37" (2/3) ... [2022-11-03 03:28:38,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad6be00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:28:38, skipping insertion in model container [2022-11-03 03:28:38,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:28:38" (3/3) ... [2022-11-03 03:28:38,713 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_09-idxsense_rc.i [2022-11-03 03:28:38,726 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 03:28:38,736 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:28:38,737 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-03 03:28:38,737 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 03:28:38,840 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 03:28:38,918 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 03:28:38,935 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 83 transitions, 171 flow [2022-11-03 03:28:38,941 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 83 transitions, 171 flow [2022-11-03 03:28:38,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 83 transitions, 171 flow [2022-11-03 03:28:39,036 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-11-03 03:28:39,037 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-03 03:28:39,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2022-11-03 03:28:39,044 INFO L118 LiptonReduction]: Number of co-enabled transitions 1500 [2022-11-03 03:28:41,305 INFO L133 LiptonReduction]: Checked pairs total: 5796 [2022-11-03 03:28:41,305 INFO L135 LiptonReduction]: Total number of compositions: 51 [2022-11-03 03:28:41,313 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 33 transitions, 71 flow [2022-11-03 03:28:41,341 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 227 states, 219 states have (on average 1.9269406392694064) internal successors, (422), 226 states have internal predecessors, (422), 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) [2022-11-03 03:28:41,365 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:28:41,373 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;@7c48afee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:28:41,373 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-03 03:28:41,379 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 219 states have (on average 1.9269406392694064) internal successors, (422), 226 states have internal predecessors, (422), 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) [2022-11-03 03:28:41,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 03:28:41,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:41,386 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:28:41,387 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-03 03:28:41,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:41,395 INFO L85 PathProgramCache]: Analyzing trace with hash 2078718358, now seen corresponding path program 1 times [2022-11-03 03:28:41,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:41,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018520901] [2022-11-03 03:28:41,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:41,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:41,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:41,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:28:41,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:41,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018520901] [2022-11-03 03:28:41,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018520901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:41,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:28:41,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:28:41,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126954075] [2022-11-03 03:28:41,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:41,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:28:41,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:41,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:28:41,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:28:41,685 INFO L87 Difference]: Start difference. First operand has 227 states, 219 states have (on average 1.9269406392694064) internal successors, (422), 226 states have internal predecessors, (422), 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 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-03 03:28:41,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:41,747 INFO L93 Difference]: Finished difference Result 228 states and 423 transitions. [2022-11-03 03:28:41,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:28:41,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2022-11-03 03:28:41,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:41,768 INFO L225 Difference]: With dead ends: 228 [2022-11-03 03:28:41,768 INFO L226 Difference]: Without dead ends: 228 [2022-11-03 03:28:41,769 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 [2022-11-03 03:28:41,772 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:41,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:28:41,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-03 03:28:41,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2022-11-03 03:28:41,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 220 states have (on average 1.9227272727272726) internal successors, (423), 227 states have internal predecessors, (423), 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) [2022-11-03 03:28:41,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 423 transitions. [2022-11-03 03:28:41,822 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 423 transitions. Word has length 9 [2022-11-03 03:28:41,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:41,823 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 423 transitions. [2022-11-03 03:28:41,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-03 03:28:41,823 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 423 transitions. [2022-11-03 03:28:41,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 03:28:41,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:41,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:28:41,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:28:41,825 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-03 03:28:41,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:41,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1136368056, now seen corresponding path program 1 times [2022-11-03 03:28:41,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:41,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080184952] [2022-11-03 03:28:41,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:41,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:41,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:28:41,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:41,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080184952] [2022-11-03 03:28:41,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080184952] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:28:41,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367268630] [2022-11-03 03:28:41,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:41,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:28:41,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:28:41,958 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:28:41,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:28:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:42,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:28:42,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:28:42,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:28:42,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:28:42,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:28:42,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367268630] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:28:42,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1451283480] [2022-11-03 03:28:42,099 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:336) 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) [2022-11-03 03:28:42,102 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:28:42,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-03 03:28:42,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526724343] [2022-11-03 03:28:42,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 03:28:42,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:28:42,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:42,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:28:42,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:28:42,105 INFO L87 Difference]: Start difference. First operand 228 states and 423 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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) [2022-11-03 03:28:42,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:42,169 INFO L93 Difference]: Finished difference Result 231 states and 426 transitions. [2022-11-03 03:28:42,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:28:42,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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 10 [2022-11-03 03:28:42,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:42,172 INFO L225 Difference]: With dead ends: 231 [2022-11-03 03:28:42,172 INFO L226 Difference]: Without dead ends: 231 [2022-11-03 03:28:42,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:28:42,174 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:42,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:28:42,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-11-03 03:28:42,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2022-11-03 03:28:42,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 223 states have (on average 1.9103139013452914) internal successors, (426), 230 states have internal predecessors, (426), 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) [2022-11-03 03:28:42,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 426 transitions. [2022-11-03 03:28:42,204 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 426 transitions. Word has length 10 [2022-11-03 03:28:42,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:42,204 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 426 transitions. [2022-11-03 03:28:42,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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) [2022-11-03 03:28:42,205 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 426 transitions. [2022-11-03 03:28:42,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 03:28:42,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:42,206 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:28:42,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 03:28:42,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:28:42,419 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-03 03:28:42,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:42,420 INFO L85 PathProgramCache]: Analyzing trace with hash 976138774, now seen corresponding path program 2 times [2022-11-03 03:28:42,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:42,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200744653] [2022-11-03 03:28:42,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:42,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:42,594 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:28:42,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:42,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200744653] [2022-11-03 03:28:42,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200744653] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:28:42,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164144602] [2022-11-03 03:28:42,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 03:28:42,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:28:42,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:28:42,600 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:28:42,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:28:42,692 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-03 03:28:42,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:28:42,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 03:28:42,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:28:42,729 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 03:28:42,747 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 03:28:42,784 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 03:28:42,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 03:28:42,837 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 03:28:42,838 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-11-03 03:28:42,872 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 03:28:42,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:28:42,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164144602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:42,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:28:42,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11 [2022-11-03 03:28:42,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498589509] [2022-11-03 03:28:42,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:42,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:28:42,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:42,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:28:42,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-03 03:28:42,879 INFO L87 Difference]: Start difference. First operand 231 states and 426 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-11-03 03:28:43,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:43,277 INFO L93 Difference]: Finished difference Result 388 states and 718 transitions. [2022-11-03 03:28:43,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:28:43,278 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 13 [2022-11-03 03:28:43,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:43,282 INFO L225 Difference]: With dead ends: 388 [2022-11-03 03:28:43,282 INFO L226 Difference]: Without dead ends: 388 [2022-11-03 03:28:43,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-03 03:28:43,284 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 36 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:43,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 12 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 03:28:43,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-11-03 03:28:43,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 280. [2022-11-03 03:28:43,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 273 states have (on average 1.934065934065934) internal successors, (528), 279 states have internal predecessors, (528), 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) [2022-11-03 03:28:43,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 528 transitions. [2022-11-03 03:28:43,332 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 528 transitions. Word has length 13 [2022-11-03 03:28:43,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:43,333 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 528 transitions. [2022-11-03 03:28:43,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-11-03 03:28:43,334 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 528 transitions. [2022-11-03 03:28:43,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 03:28:43,336 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:43,336 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:28:43,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:28:43,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:28:43,550 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-03 03:28:43,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:43,550 INFO L85 PathProgramCache]: Analyzing trace with hash -519800207, now seen corresponding path program 1 times [2022-11-03 03:28:43,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:43,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029476378] [2022-11-03 03:28:43,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:43,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:43,766 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:28:43,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:43,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029476378] [2022-11-03 03:28:43,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029476378] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:28:43,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484960211] [2022-11-03 03:28:43,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:43,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:28:43,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:28:43,768 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:28:43,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:28:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:43,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:28:43,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:28:43,884 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:28:43,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:28:43,956 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:28:43,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484960211] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:28:43,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1106801494] [2022-11-03 03:28:43,957 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:336) 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) [2022-11-03 03:28:43,958 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:28:43,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-03 03:28:43,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785712879] [2022-11-03 03:28:43,959 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 03:28:43,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 03:28:43,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:43,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 03:28:43,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-03 03:28:43,960 INFO L87 Difference]: Start difference. First operand 280 states and 528 transitions. Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 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) [2022-11-03 03:28:44,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:44,006 INFO L93 Difference]: Finished difference Result 286 states and 534 transitions. [2022-11-03 03:28:44,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:28:44,007 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 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 19 [2022-11-03 03:28:44,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:44,008 INFO L225 Difference]: With dead ends: 286 [2022-11-03 03:28:44,008 INFO L226 Difference]: Without dead ends: 286 [2022-11-03 03:28:44,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-03 03:28:44,010 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:44,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:28:44,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-11-03 03:28:44,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2022-11-03 03:28:44,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 279 states have (on average 1.913978494623656) internal successors, (534), 285 states have internal predecessors, (534), 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) [2022-11-03 03:28:44,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 534 transitions. [2022-11-03 03:28:44,034 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 534 transitions. Word has length 19 [2022-11-03 03:28:44,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:44,035 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 534 transitions. [2022-11-03 03:28:44,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 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) [2022-11-03 03:28:44,035 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 534 transitions. [2022-11-03 03:28:44,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-03 03:28:44,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:44,043 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:28:44,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 03:28:44,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:28:44,269 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-03 03:28:44,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:44,269 INFO L85 PathProgramCache]: Analyzing trace with hash -802199759, now seen corresponding path program 2 times [2022-11-03 03:28:44,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:44,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626534077] [2022-11-03 03:28:44,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:44,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:44,687 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 03:28:44,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:44,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626534077] [2022-11-03 03:28:44,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626534077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:44,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:28:44,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:28:44,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760347474] [2022-11-03 03:28:44,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:44,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:28:44,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:44,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:28:44,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:28:44,690 INFO L87 Difference]: Start difference. First operand 286 states and 534 transitions. Second operand has 6 states, 5 states have (on average 3.2) 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) [2022-11-03 03:28:44,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:44,894 INFO L93 Difference]: Finished difference Result 388 states and 720 transitions. [2022-11-03 03:28:44,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:28:44,895 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) 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 25 [2022-11-03 03:28:44,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:44,897 INFO L225 Difference]: With dead ends: 388 [2022-11-03 03:28:44,897 INFO L226 Difference]: Without dead ends: 373 [2022-11-03 03:28:44,898 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 [2022-11-03 03:28:44,898 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 23 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:44,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 16 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:28:44,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-11-03 03:28:44,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 324. [2022-11-03 03:28:44,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 317 states have (on average 1.9085173501577286) internal successors, (605), 323 states have internal predecessors, (605), 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) [2022-11-03 03:28:44,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 605 transitions. [2022-11-03 03:28:44,911 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 605 transitions. Word has length 25 [2022-11-03 03:28:44,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:44,912 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 605 transitions. [2022-11-03 03:28:44,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) 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) [2022-11-03 03:28:44,912 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 605 transitions. [2022-11-03 03:28:44,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-03 03:28:44,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:44,914 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:28:44,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:28:44,915 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-03 03:28:44,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:44,915 INFO L85 PathProgramCache]: Analyzing trace with hash 884772174, now seen corresponding path program 1 times [2022-11-03 03:28:44,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:44,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928808039] [2022-11-03 03:28:44,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:44,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:45,338 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 03:28:45,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:45,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928808039] [2022-11-03 03:28:45,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928808039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:45,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:28:45,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:28:45,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633415119] [2022-11-03 03:28:45,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:45,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:28:45,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:45,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:28:45,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:28:45,341 INFO L87 Difference]: Start difference. First operand 324 states and 605 transitions. Second operand has 6 states, 5 states have (on average 3.2) 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) [2022-11-03 03:28:45,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:45,572 INFO L93 Difference]: Finished difference Result 408 states and 747 transitions. [2022-11-03 03:28:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:28:45,572 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) 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 25 [2022-11-03 03:28:45,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:45,574 INFO L225 Difference]: With dead ends: 408 [2022-11-03 03:28:45,574 INFO L226 Difference]: Without dead ends: 393 [2022-11-03 03:28:45,575 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 [2022-11-03 03:28:45,575 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 21 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:45,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 16 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:28:45,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-11-03 03:28:45,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 344. [2022-11-03 03:28:45,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 337 states have (on average 1.8694362017804154) internal successors, (630), 343 states have internal predecessors, (630), 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) [2022-11-03 03:28:45,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 630 transitions. [2022-11-03 03:28:45,595 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 630 transitions. Word has length 25 [2022-11-03 03:28:45,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:45,596 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 630 transitions. [2022-11-03 03:28:45,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) 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) [2022-11-03 03:28:45,597 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 630 transitions. [2022-11-03 03:28:45,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 03:28:45,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:45,599 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:28:45,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:28:45,600 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-03 03:28:45,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:45,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1834428239, now seen corresponding path program 1 times [2022-11-03 03:28:45,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:45,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732917511] [2022-11-03 03:28:45,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:45,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:28:45,653 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 03:28:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:28:45,705 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 03:28:45,705 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 03:28:45,706 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2022-11-03 03:28:45,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2022-11-03 03:28:45,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-11-03 03:28:45,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2022-11-03 03:28:45,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2022-11-03 03:28:45,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2022-11-03 03:28:45,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2022-11-03 03:28:45,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 03:28:45,717 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2022-11-03 03:28:45,724 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 03:28:45,724 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:28:45,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:28:45 BasicIcfg [2022-11-03 03:28:45,788 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:28:45,789 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:28:45,789 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:28:45,789 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:28:45,790 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:28:38" (3/4) ... [2022-11-03 03:28:45,792 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 03:28:45,792 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:28:45,795 INFO L158 Benchmark]: Toolchain (without parser) took 8427.79ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 74.7MB in the beginning and 92.2MB in the end (delta: -17.5MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2022-11-03 03:28:45,795 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 79.7MB. Free memory is still 37.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:28:45,796 INFO L158 Benchmark]: CACSL2BoogieTranslator took 528.00ms. Allocated memory is still 109.1MB. Free memory was 74.5MB in the beginning and 75.1MB in the end (delta: -591.5kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 03:28:45,796 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.34ms. Allocated memory is still 109.1MB. Free memory was 75.1MB in the beginning and 73.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:28:45,797 INFO L158 Benchmark]: Boogie Preprocessor took 66.15ms. Allocated memory is still 109.1MB. Free memory was 73.0MB in the beginning and 71.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:28:45,797 INFO L158 Benchmark]: RCFGBuilder took 656.13ms. Allocated memory is still 109.1MB. Free memory was 71.0MB in the beginning and 56.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-03 03:28:45,797 INFO L158 Benchmark]: TraceAbstraction took 7090.41ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 56.2MB in the beginning and 92.2MB in the end (delta: -36.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:28:45,798 INFO L158 Benchmark]: Witness Printer took 4.02ms. Allocated memory is still 136.3MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:28:45,802 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 79.7MB. Free memory is still 37.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 528.00ms. Allocated memory is still 109.1MB. Free memory was 74.5MB in the beginning and 75.1MB in the end (delta: -591.5kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.34ms. Allocated memory is still 109.1MB. Free memory was 75.1MB in the beginning and 73.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.15ms. Allocated memory is still 109.1MB. Free memory was 73.0MB in the beginning and 71.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 656.13ms. Allocated memory is still 109.1MB. Free memory was 71.0MB in the beginning and 56.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7090.41ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 56.2MB in the beginning and 92.2MB in the end (delta: -36.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.02ms. Allocated memory is still 136.3MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 85 PlacesBefore, 36 PlacesAfterwards, 83 TransitionsBefore, 33 TransitionsAfterwards, 1500 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 51 TotalNumberOfCompositions, 5796 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1674, positive: 1381, positive conditional: 0, positive unconditional: 1381, negative: 293, negative conditional: 0, negative unconditional: 293, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 894, positive: 824, positive conditional: 0, positive unconditional: 824, negative: 70, negative conditional: 0, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 894, positive: 750, positive conditional: 0, positive unconditional: 750, negative: 144, negative conditional: 0, negative unconditional: 144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 144, positive: 74, positive conditional: 0, positive unconditional: 74, negative: 70, negative conditional: 0, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 447, positive: 224, positive conditional: 0, positive unconditional: 224, negative: 223, negative conditional: 0, negative unconditional: 223, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1674, positive: 557, positive conditional: 0, positive unconditional: 557, negative: 223, negative conditional: 0, negative unconditional: 223, unknown: 894, unknown conditional: 0, unknown unconditional: 894] , Statistics on independence cache: Total cache size (in pairs): 155, Positive cache size: 106, Positive conditional cache size: 0, Positive unconditional cache size: 106, Negative cache size: 49, Negative conditional cache size: 0, Negative unconditional cache size: 49 - 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 - DataRaceFoundResult [Line: 693]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int data[10]; [L680] 0 pthread_mutex_t m[10]; [L688] 0 int i = 0; VAL [data={1:0}, i=0, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=1, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=2, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=3, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=4, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=5, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=6, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=7, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=8, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=9, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=10, m={2:0}] [L688] COND FALSE 0 !(i < 10) [L690] 0 pthread_t id; [L691] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, i=10, id={3:0}, m={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L693] EXPR 0 data[4] VAL [arg={0:0}, data={1:0}, data[4]=0, i=10, id={3:0}, m={2:0}] [L693] 0 data[4]++ VAL [arg={0:0}, data={1:0}, data[4]=0, i=10, id={3:0}, m={2:0}] [L683] EXPR 1 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L683] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]++=0, m={2:0}] [L693] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, data[4]++=0, i=10, id={3:0}, m={2:0}] [L693] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, data[4]++=241, data[4]++=0, i=10, id={3:0}, m={2:0}] Now there is a data race (on the heap) between C: data[4]++ [683] and C: data[4]++ [693] - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 109 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 6.8s, OverallIterations: 7, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 80 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 204 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 158 mSDsCounter, 120 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 695 IncrementalHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 120 mSolverCounterUnsat, 104 mSDtfsCounter, 695 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred in iteration=6, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 206 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 170 NumberOfCodeBlocks, 166 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 161 ConstructedInterpolants, 0 QuantifiedInterpolants, 482 SizeOfPredicates, 0 NumberOfNonLiveVariables, 317 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 120/163 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-03 03:28:45,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f74016-6bb6-4d99-b480-52775642657f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE