./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_44-malloc_sound.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_44-malloc_sound.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d85985769788fe03edac99b0e2515850ec4c864737a042b27bc3e336515bcde --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 15:08:03,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:08:03,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:08:03,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:08:03,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:08:03,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:08:03,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:08:03,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:08:03,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:08:03,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:08:03,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:08:03,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:08:03,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:08:03,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:08:03,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:08:03,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:08:03,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:08:03,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:08:03,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:08:03,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:08:03,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:08:03,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:08:03,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:08:03,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:08:03,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:08:03,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:08:03,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:08:03,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:08:03,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:08:03,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:08:03,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:08:03,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:08:03,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:08:03,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:08:03,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:08:03,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:08:03,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:08:03,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:08:03,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:08:03,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:08:03,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:08:03,172 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 15:08:03,187 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:08:03,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:08:03,187 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:08:03,187 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:08:03,188 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:08:03,188 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:08:03,188 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:08:03,188 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:08:03,189 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:08:03,189 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:08:03,189 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:08:03,189 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:08:03,189 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:08:03,189 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:08:03,190 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:08:03,190 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:08:03,190 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:08:03,190 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:08:03,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:08:03,191 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:08:03,191 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:08:03,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:08:03,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:08:03,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:08:03,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:08:03,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:08:03,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:08:03,192 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 15:08:03,192 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:08:03,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:08:03,193 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:08:03,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:08:03,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:08:03,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:08:03,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:08:03,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:08:03,194 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:08:03,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:08:03,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:08:03,194 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:08:03,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:08:03,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:08:03,195 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:08:03,195 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_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d85985769788fe03edac99b0e2515850ec4c864737a042b27bc3e336515bcde [2022-12-14 15:08:03,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:08:03,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:08:03,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:08:03,381 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:08:03,382 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:08:03,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/04-mutex_44-malloc_sound.i [2022-12-14 15:08:05,869 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:08:06,092 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:08:06,093 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/sv-benchmarks/c/goblint-regression/04-mutex_44-malloc_sound.i [2022-12-14 15:08:06,105 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/data/fc0fb2dfb/1b8d5328819d42e8af05b45bf32e4ccd/FLAGc1675307f [2022-12-14 15:08:06,458 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/data/fc0fb2dfb/1b8d5328819d42e8af05b45bf32e4ccd [2022-12-14 15:08:06,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:08:06,468 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:08:06,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:08:06,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:08:06,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:08:06,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:08:06" (1/1) ... [2022-12-14 15:08:06,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@723c5f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:06, skipping insertion in model container [2022-12-14 15:08:06,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:08:06" (1/1) ... [2022-12-14 15:08:06,491 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:08:06,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:08:06,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:08:06,803 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:08:06,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:08:06,868 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:08:06,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:06 WrapperNode [2022-12-14 15:08:06,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:08:06,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:08:06,869 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:08:06,869 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:08:06,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:06" (1/1) ... [2022-12-14 15:08:06,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:06" (1/1) ... [2022-12-14 15:08:06,899 INFO L138 Inliner]: procedures = 263, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 62 [2022-12-14 15:08:06,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:08:06,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:08:06,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:08:06,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:08:06,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:06" (1/1) ... [2022-12-14 15:08:06,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:06" (1/1) ... [2022-12-14 15:08:06,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:06" (1/1) ... [2022-12-14 15:08:06,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:06" (1/1) ... [2022-12-14 15:08:06,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:06" (1/1) ... [2022-12-14 15:08:06,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:06" (1/1) ... [2022-12-14 15:08:06,914 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:06" (1/1) ... [2022-12-14 15:08:06,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:06" (1/1) ... [2022-12-14 15:08:06,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:08:06,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:08:06,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:08:06,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:08:06,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:06" (1/1) ... [2022-12-14 15:08:06,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:08:06,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:08:06,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:08:06,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:08:06,970 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-12-14 15:08:06,970 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-12-14 15:08:06,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:08:06,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:08:06,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:08:06,971 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 15:08:06,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:08:06,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:08:06,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:08:06,972 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 15:08:07,068 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:08:07,070 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:08:07,204 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:08:07,212 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:08:07,213 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 15:08:07,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:08:07 BoogieIcfgContainer [2022-12-14 15:08:07,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:08:07,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:08:07,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:08:07,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:08:07,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:08:06" (1/3) ... [2022-12-14 15:08:07,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424c016b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:08:07, skipping insertion in model container [2022-12-14 15:08:07,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:06" (2/3) ... [2022-12-14 15:08:07,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424c016b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:08:07, skipping insertion in model container [2022-12-14 15:08:07,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:08:07" (3/3) ... [2022-12-14 15:08:07,221 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_44-malloc_sound.i [2022-12-14 15:08:07,227 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 15:08:07,234 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:08:07,235 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 15:08:07,235 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 15:08:07,269 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 15:08:07,292 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 15:08:07,303 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 92 transitions, 189 flow [2022-12-14 15:08:07,305 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 92 transitions, 189 flow [2022-12-14 15:08:07,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 92 transitions, 189 flow [2022-12-14 15:08:07,336 INFO L130 PetriNetUnfolder]: 4/91 cut-off events. [2022-12-14 15:08:07,336 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 15:08:07,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 91 events. 4/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 159 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2022-12-14 15:08:07,340 INFO L119 LiptonReduction]: Number of co-enabled transitions 1000 [2022-12-14 15:08:08,972 INFO L134 LiptonReduction]: Checked pairs total: 4855 [2022-12-14 15:08:08,973 INFO L136 LiptonReduction]: Total number of compositions: 92 [2022-12-14 15:08:08,979 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 29 transitions, 63 flow [2022-12-14 15:08:08,998 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 145 states, 128 states have (on average 2.046875) internal successors, (262), 144 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:09,011 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:08:09,015 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;@75d1b5af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:08:09,015 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-12-14 15:08:09,017 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 128 states have (on average 2.046875) internal successors, (262), 144 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:09,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 15:08:09,020 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:08:09,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 15:08:09,021 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-12-14 15:08:09,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:08:09,025 INFO L85 PathProgramCache]: Analyzing trace with hash 10629, now seen corresponding path program 1 times [2022-12-14 15:08:09,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:08:09,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257843061] [2022-12-14 15:08:09,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:08:09,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:08:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:08:09,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:08:09,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:08:09,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257843061] [2022-12-14 15:08:09,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257843061] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:08:09,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:08:09,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 15:08:09,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500932878] [2022-12-14 15:08:09,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:08:09,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 15:08:09,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:08:09,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 15:08:09,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:08:09,153 INFO L87 Difference]: Start difference. First operand has 145 states, 128 states have (on average 2.046875) internal successors, (262), 144 states have internal predecessors, (262), 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 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:09,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:08:09,184 INFO L93 Difference]: Finished difference Result 120 states and 216 transitions. [2022-12-14 15:08:09,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 15:08:09,186 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-12-14 15:08:09,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:08:09,192 INFO L225 Difference]: With dead ends: 120 [2022-12-14 15:08:09,192 INFO L226 Difference]: Without dead ends: 120 [2022-12-14 15:08:09,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:08:09,195 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:08:09,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:08:09,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-12-14 15:08:09,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2022-12-14 15:08:09,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 112 states have (on average 1.9285714285714286) internal successors, (216), 119 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:09,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 216 transitions. [2022-12-14 15:08:09,231 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 216 transitions. Word has length 2 [2022-12-14 15:08:09,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:08:09,231 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 216 transitions. [2022-12-14 15:08:09,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:09,231 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 216 transitions. [2022-12-14 15:08:09,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 15:08:09,232 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:08:09,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 15:08:09,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:08:09,233 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-12-14 15:08:09,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:08:09,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1207165322, now seen corresponding path program 1 times [2022-12-14 15:08:09,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:08:09,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454485092] [2022-12-14 15:08:09,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:08:09,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:08:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:08:09,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:08:09,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:08:09,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454485092] [2022-12-14 15:08:09,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454485092] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:08:09,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:08:09,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:08:09,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000703762] [2022-12-14 15:08:09,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:08:09,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:08:09,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:08:09,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:08:09,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:08:09,309 INFO L87 Difference]: Start difference. First operand 120 states and 216 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:09,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:08:09,333 INFO L93 Difference]: Finished difference Result 121 states and 217 transitions. [2022-12-14 15:08:09,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:08:09,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 15:08:09,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:08:09,335 INFO L225 Difference]: With dead ends: 121 [2022-12-14 15:08:09,335 INFO L226 Difference]: Without dead ends: 121 [2022-12-14 15:08:09,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:08:09,336 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:08:09,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:08:09,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-12-14 15:08:09,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-12-14 15:08:09,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 113 states have (on average 1.920353982300885) internal successors, (217), 120 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:09,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 217 transitions. [2022-12-14 15:08:09,347 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 217 transitions. Word has length 6 [2022-12-14 15:08:09,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:08:09,347 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 217 transitions. [2022-12-14 15:08:09,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:09,348 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 217 transitions. [2022-12-14 15:08:09,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 15:08:09,348 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:08:09,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:08:09,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:08:09,348 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-12-14 15:08:09,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:08:09,349 INFO L85 PathProgramCache]: Analyzing trace with hash -351210255, now seen corresponding path program 1 times [2022-12-14 15:08:09,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:08:09,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174917811] [2022-12-14 15:08:09,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:08:09,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:08:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:08:09,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:08:09,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:08:09,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174917811] [2022-12-14 15:08:09,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174917811] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:08:09,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151575187] [2022-12-14 15:08:09,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:08:09,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:08:09,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:08:09,447 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:08:09,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:08:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:08:09,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:08:09,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:08:09,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:08:09,512 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:08:09,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151575187] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:08:09,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:08:09,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-12-14 15:08:09,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082313111] [2022-12-14 15:08:09,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:08:09,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:08:09,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:08:09,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:08:09,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:08:09,514 INFO L87 Difference]: Start difference. First operand 121 states and 217 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:09,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:08:09,551 INFO L93 Difference]: Finished difference Result 140 states and 247 transitions. [2022-12-14 15:08:09,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:08:09,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-12-14 15:08:09,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:08:09,554 INFO L225 Difference]: With dead ends: 140 [2022-12-14 15:08:09,554 INFO L226 Difference]: Without dead ends: 140 [2022-12-14 15:08:09,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:08:09,555 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 14 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:08:09,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 13 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:08:09,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-12-14 15:08:09,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 116. [2022-12-14 15:08:09,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 109 states have (on average 1.8807339449541285) internal successors, (205), 115 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:09,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 205 transitions. [2022-12-14 15:08:09,565 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 205 transitions. Word has length 7 [2022-12-14 15:08:09,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:08:09,565 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 205 transitions. [2022-12-14 15:08:09,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:09,565 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 205 transitions. [2022-12-14 15:08:09,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 15:08:09,566 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:08:09,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:08:09,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:08:09,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:08:09,767 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-12-14 15:08:09,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:08:09,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1594691621, now seen corresponding path program 1 times [2022-12-14 15:08:09,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:08:09,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886446173] [2022-12-14 15:08:09,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:08:09,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:08:09,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:08:09,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:08:09,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:08:09,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886446173] [2022-12-14 15:08:09,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886446173] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:08:09,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157681624] [2022-12-14 15:08:09,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:08:09,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:08:09,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:08:09,951 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:08:09,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:08:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:08:10,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:08:10,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:08:10,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:08:10,010 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:08:10,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157681624] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:08:10,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:08:10,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-12-14 15:08:10,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222102500] [2022-12-14 15:08:10,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:08:10,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:08:10,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:08:10,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:08:10,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:08:10,012 INFO L87 Difference]: Start difference. First operand 116 states and 205 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:10,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:08:10,050 INFO L93 Difference]: Finished difference Result 119 states and 208 transitions. [2022-12-14 15:08:10,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:08:10,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 15:08:10,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:08:10,051 INFO L225 Difference]: With dead ends: 119 [2022-12-14 15:08:10,051 INFO L226 Difference]: Without dead ends: 105 [2022-12-14 15:08:10,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:08:10,053 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:08:10,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 15 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:08:10,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-12-14 15:08:10,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2022-12-14 15:08:10,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 99 states have (on average 1.8181818181818181) internal successors, (180), 104 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:10,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 180 transitions. [2022-12-14 15:08:10,059 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 180 transitions. Word has length 11 [2022-12-14 15:08:10,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:08:10,059 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 180 transitions. [2022-12-14 15:08:10,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:10,059 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 180 transitions. [2022-12-14 15:08:10,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 15:08:10,060 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:08:10,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:08:10,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:08:10,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:08:10,262 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-12-14 15:08:10,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:08:10,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1047909521, now seen corresponding path program 1 times [2022-12-14 15:08:10,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:08:10,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310744723] [2022-12-14 15:08:10,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:08:10,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:08:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:08:10,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:08:10,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:08:10,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310744723] [2022-12-14 15:08:10,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310744723] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:08:10,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890302073] [2022-12-14 15:08:10,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:08:10,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:08:10,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:08:10,413 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:08:10,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 15:08:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:08:10,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:08:10,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:08:10,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:08:10,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:08:10,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890302073] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:08:10,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:08:10,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-12-14 15:08:10,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012131252] [2022-12-14 15:08:10,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:08:10,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:08:10,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:08:10,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:08:10,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:08:10,476 INFO L87 Difference]: Start difference. First operand 105 states and 180 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:10,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:08:10,503 INFO L93 Difference]: Finished difference Result 104 states and 172 transitions. [2022-12-14 15:08:10,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:08:10,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 15:08:10,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:08:10,504 INFO L225 Difference]: With dead ends: 104 [2022-12-14 15:08:10,504 INFO L226 Difference]: Without dead ends: 90 [2022-12-14 15:08:10,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:08:10,505 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:08:10,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 16 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:08:10,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-12-14 15:08:10,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-12-14 15:08:10,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 86 states have (on average 1.6395348837209303) internal successors, (141), 89 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:10,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 141 transitions. [2022-12-14 15:08:10,508 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 141 transitions. Word has length 11 [2022-12-14 15:08:10,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:08:10,509 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 141 transitions. [2022-12-14 15:08:10,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:10,509 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 141 transitions. [2022-12-14 15:08:10,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 15:08:10,509 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:08:10,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:08:10,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 15:08:10,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:08:10,712 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-12-14 15:08:10,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:08:10,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1719001211, now seen corresponding path program 1 times [2022-12-14 15:08:10,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:08:10,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394944534] [2022-12-14 15:08:10,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:08:10,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:08:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:08:10,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:08:10,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:08:10,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394944534] [2022-12-14 15:08:10,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394944534] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:08:10,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475415810] [2022-12-14 15:08:10,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:08:10,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:08:10,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:08:10,864 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:08:10,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 15:08:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:08:10,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:08:10,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:08:10,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:08:10,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:08:11,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:08:11,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475415810] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:08:11,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2122461585] [2022-12-14 15:08:11,030 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 15:08:11,032 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:08:11,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-14 15:08:11,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097644876] [2022-12-14 15:08:11,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:08:11,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 15:08:11,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:08:11,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 15:08:11,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-14 15:08:11,033 INFO L87 Difference]: Start difference. First operand 90 states and 141 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:11,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:08:11,070 INFO L93 Difference]: Finished difference Result 93 states and 144 transitions. [2022-12-14 15:08:11,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:08:11,070 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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 [2022-12-14 15:08:11,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:08:11,071 INFO L225 Difference]: With dead ends: 93 [2022-12-14 15:08:11,071 INFO L226 Difference]: Without dead ends: 93 [2022-12-14 15:08:11,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-14 15:08:11,073 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:08:11,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:08:11,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-12-14 15:08:11,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-12-14 15:08:11,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 89 states have (on average 1.6179775280898876) internal successors, (144), 92 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:11,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 144 transitions. [2022-12-14 15:08:11,079 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 144 transitions. Word has length 13 [2022-12-14 15:08:11,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:08:11,080 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 144 transitions. [2022-12-14 15:08:11,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:11,080 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 144 transitions. [2022-12-14 15:08:11,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 15:08:11,081 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:08:11,081 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:08:11,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 15:08:11,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:08:11,282 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-12-14 15:08:11,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:08:11,282 INFO L85 PathProgramCache]: Analyzing trace with hash 922617876, now seen corresponding path program 2 times [2022-12-14 15:08:11,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:08:11,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29676777] [2022-12-14 15:08:11,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:08:11,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:08:11,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:08:11,421 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:08:11,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:08:11,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29676777] [2022-12-14 15:08:11,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29676777] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:08:11,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134118011] [2022-12-14 15:08:11,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 15:08:11,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:08:11,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:08:11,423 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:08:11,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 15:08:11,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 15:08:11,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:08:11,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 15:08:11,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:08:11,524 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:08:11,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:08:11,651 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:08:11,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134118011] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:08:11,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1762955766] [2022-12-14 15:08:11,652 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 15:08:11,652 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:08:11,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-12-14 15:08:11,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207564901] [2022-12-14 15:08:11,652 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:08:11,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 15:08:11,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:08:11,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 15:08:11,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-14 15:08:11,654 INFO L87 Difference]: Start difference. First operand 93 states and 144 transitions. Second operand has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:11,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:08:11,694 INFO L93 Difference]: Finished difference Result 99 states and 150 transitions. [2022-12-14 15:08:11,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 15:08:11,694 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 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 16 [2022-12-14 15:08:11,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:08:11,695 INFO L225 Difference]: With dead ends: 99 [2022-12-14 15:08:11,695 INFO L226 Difference]: Without dead ends: 99 [2022-12-14 15:08:11,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-14 15:08:11,696 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:08:11,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:08:11,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-12-14 15:08:11,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2022-12-14 15:08:11,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 95 states have (on average 1.5789473684210527) internal successors, (150), 98 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:11,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 150 transitions. [2022-12-14 15:08:11,699 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 150 transitions. Word has length 16 [2022-12-14 15:08:11,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:08:11,699 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 150 transitions. [2022-12-14 15:08:11,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:08:11,699 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 150 transitions. [2022-12-14 15:08:11,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 15:08:11,700 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:08:11,700 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:08:11,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-14 15:08:11,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:08:11,901 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-12-14 15:08:11,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:08:11,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1184784052, now seen corresponding path program 3 times [2022-12-14 15:08:11,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:08:11,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580383095] [2022-12-14 15:08:11,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:08:11,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:08:12,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:08:12,067 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 15:08:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:08:12,107 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 15:08:12,107 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 15:08:12,108 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2022-12-14 15:08:12,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2022-12-14 15:08:12,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2022-12-14 15:08:12,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2022-12-14 15:08:12,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2022-12-14 15:08:12,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2022-12-14 15:08:12,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2022-12-14 15:08:12,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2022-12-14 15:08:12,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2022-12-14 15:08:12,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2022-12-14 15:08:12,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2022-12-14 15:08:12,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr2ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2022-12-14 15:08:12,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 15:08:12,112 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2022-12-14 15:08:12,117 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 15:08:12,117 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:08:12,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:08:12 BasicIcfg [2022-12-14 15:08:12,140 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:08:12,141 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:08:12,141 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:08:12,141 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:08:12,141 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:08:07" (3/4) ... [2022-12-14 15:08:12,143 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 15:08:12,143 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:08:12,144 INFO L158 Benchmark]: Toolchain (without parser) took 5677.14ms. Allocated memory is still 155.2MB. Free memory was 118.3MB in the beginning and 98.8MB in the end (delta: 19.4MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2022-12-14 15:08:12,144 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 111.1MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:08:12,144 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.55ms. Allocated memory is still 155.2MB. Free memory was 117.8MB in the beginning and 91.0MB in the end (delta: 26.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-14 15:08:12,144 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.05ms. Allocated memory is still 155.2MB. Free memory was 91.0MB in the beginning and 88.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:08:12,144 INFO L158 Benchmark]: Boogie Preprocessor took 17.45ms. Allocated memory is still 155.2MB. Free memory was 88.9MB in the beginning and 87.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:08:12,145 INFO L158 Benchmark]: RCFGBuilder took 297.40ms. Allocated memory is still 155.2MB. Free memory was 87.3MB in the beginning and 124.8MB in the end (delta: -37.5MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-12-14 15:08:12,145 INFO L158 Benchmark]: TraceAbstraction took 4924.09ms. Allocated memory is still 155.2MB. Free memory was 124.1MB in the beginning and 98.8MB in the end (delta: 25.2MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2022-12-14 15:08:12,145 INFO L158 Benchmark]: Witness Printer took 2.81ms. Allocated memory is still 155.2MB. Free memory is still 98.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:08:12,146 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 111.1MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 397.55ms. Allocated memory is still 155.2MB. Free memory was 117.8MB in the beginning and 91.0MB in the end (delta: 26.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.05ms. Allocated memory is still 155.2MB. Free memory was 91.0MB in the beginning and 88.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.45ms. Allocated memory is still 155.2MB. Free memory was 88.9MB in the beginning and 87.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 297.40ms. Allocated memory is still 155.2MB. Free memory was 87.3MB in the beginning and 124.8MB in the end (delta: -37.5MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4924.09ms. Allocated memory is still 155.2MB. Free memory was 124.1MB in the beginning and 98.8MB in the end (delta: 25.2MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. * Witness Printer took 2.81ms. Allocated memory is still 155.2MB. Free memory is still 98.8MB. 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: 1.7s, 92 PlacesBefore, 32 PlacesAfterwards, 92 TransitionsBefore, 29 TransitionsAfterwards, 1000 CoEnabledTransitionPairs, 9 FixpointIterations, 43 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 0 ConcurrentYvCompositions, 3 ChoiceCompositions, 92 TotalNumberOfCompositions, 4855 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2268, independent: 1929, independent conditional: 0, independent unconditional: 1929, dependent: 339, dependent conditional: 0, dependent unconditional: 339, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 807, independent: 759, independent conditional: 0, independent unconditional: 759, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 807, independent: 692, independent conditional: 0, independent unconditional: 692, dependent: 115, dependent conditional: 0, dependent unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 115, independent: 67, independent conditional: 0, independent unconditional: 67, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 121, independent: 49, independent conditional: 0, independent unconditional: 49, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2268, independent: 1170, independent conditional: 0, independent unconditional: 1170, dependent: 291, dependent conditional: 0, dependent unconditional: 291, unknown: 807, unknown conditional: 0, unknown unconditional: 807] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 113, Positive conditional cache size: 0, Positive unconditional cache size: 113, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 1009]: Data race detected Data race detected The following path leads to a data race: [L987] 0 int glob; [L988] 0 pthread_mutex_t *p, *q; [L996] 0 pthread_t t1, t2; [L997] 0 int i; [L998] 0 pthread_mutex_t *a; [L999] 0 i=0 VAL [glob=0, i=0, p={0:0}, q={0:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) [L1002] COND FALSE 0 !(i==3) [L1004] COND FALSE 0 !(i==7) [L999] 0 i++ VAL [a={-2:0}, glob=0, i=1, p={0:0}, p = a=25, q={0:0}, q = a=29, t1={2:0}] [L999] COND TRUE 0 i < 10 [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) [L1002] COND FALSE 0 !(i==3) [L1004] COND FALSE 0 !(i==7) [L999] 0 i++ VAL [a={-3:0}, glob=0, i=2, p={0:0}, p = a=25, q={0:0}, q = a=29, t1={2:0}] [L999] COND TRUE 0 i < 10 [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) [L1002] COND FALSE 0 !(i==3) [L1004] COND FALSE 0 !(i==7) [L999] 0 i++ VAL [a={-4:0}, glob=0, i=3, p={0:0}, p = a=25, q={0:0}, q = a=29, t1={2:0}] [L999] COND TRUE 0 i < 10 [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) [L1002] COND TRUE 0 i==3 [L1003] 0 p = a [L1004] COND FALSE 0 !(i==7) [L999] 0 i++ VAL [a={-5:0}, glob=0, i=4, p={-5:0}, p = a=25, q={0:0}, q = a=29, t1={2:0}] [L999] COND TRUE 0 i < 10 [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) [L1002] COND FALSE 0 !(i==3) [L1004] COND FALSE 0 !(i==7) [L999] 0 i++ VAL [a={-6:0}, glob=0, i=5, p={-5:0}, p = a=25, q={0:0}, q = a=29, t1={2:0}] [L999] COND TRUE 0 i < 10 [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) [L1002] COND FALSE 0 !(i==3) [L1004] COND FALSE 0 !(i==7) [L999] 0 i++ VAL [a={-7:0}, glob=0, i=6, p={-5:0}, p = a=25, q={0:0}, q = a=29, t1={2:0}] [L999] COND TRUE 0 i < 10 [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) [L1002] COND FALSE 0 !(i==3) [L1004] COND FALSE 0 !(i==7) [L999] 0 i++ VAL [a={-8:0}, glob=0, i=7, p={-5:0}, p = a=25, q={0:0}, q = a=29, t1={2:0}] [L999] COND TRUE 0 i < 10 [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) [L1002] COND FALSE 0 !(i==3) [L1004] COND TRUE 0 i==7 [L1005] 0 q = a [L999] 0 i++ VAL [a={-9:0}, glob=0, i=8, p={-5:0}, p = a=25, q={-9:0}, q = a=29, t1={2:0}] [L999] COND TRUE 0 i < 10 [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) [L1002] COND FALSE 0 !(i==3) [L1004] COND FALSE 0 !(i==7) [L999] 0 i++ VAL [a={-10:0}, glob=0, i=9, p={-5:0}, p = a=25, q={-9:0}, q = a=29, t1={2:0}] [L999] COND TRUE 0 i < 10 [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) [L1002] COND FALSE 0 !(i==3) [L1004] COND FALSE 0 !(i==7) [L999] 0 i++ VAL [a={-11:0}, glob=0, i=10, p={-5:0}, p = a=25, q={-9:0}, q = a=29, t1={2:0}] [L999] COND FALSE 0 !(i < 10) [L1007] FCALL, FORK 0 pthread_create(&t1, 0, f, 0) VAL [a={-11:0}, glob=0, i=10, p={-5:0}, p = a=25, pthread_create(&t1, 0, f, 0)=-1, q={-9:0}, q = a=29, t1={2:0}, x={0:0}] [L1009] 0 glob++ VAL [a={-11:0}, glob=0, i=10, p={-5:0}, p = a=25, q={-9:0}, q = a=29, t1={2:0}, x={0:0}] [L991] 1 glob++ VAL [glob=1, glob++=0, glob++=27, p={-5:0}, q={-9:0}, x={0:0}, x={0:0}] [L1009] 0 glob++ VAL [a={-11:0}, glob=1, glob++=0, glob++=27, i=10, p={-5:0}, p = a=25, q={-9:0}, q = a=29, t1={2:0}, x={0:0}, x={0:0}] Now there is a data race on ~glob~0 between C: glob++ [991] and C: glob++ [1009] - UnprovableResult [Line: 991]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 991]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 992]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1003]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1005]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1009]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1010]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1007]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 111 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 198 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 119 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 304 IncrementalHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 79 mSDtfsCounter, 304 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=145occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 24 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 201 SizeOfPredicates, 8 NumberOfNonLiveVariables, 428 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 14 InterpolantComputations, 5 PerfectInterpolantSequences, 3/39 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 15:08:12,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc7702-c7c8-42f6-ab5f-652ef7d5ed05/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE