./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta --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 4d853145e48ada6aa212af657ef21b1dd6bc82cb156511f71c23f87b45f2510e --- 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-dbf71c6-m [2022-10-17 17:40:56,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:40:56,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:40:56,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:40:56,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:40:56,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:40:56,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:40:56,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:40:56,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:40:56,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:40:56,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:40:56,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:40:56,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:40:56,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:40:56,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:40:56,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:40:56,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:40:56,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:40:56,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:40:56,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:40:56,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:40:56,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:40:56,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:40:56,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:40:56,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:40:56,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:40:56,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:40:56,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:40:56,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:40:56,847 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:40:56,848 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:40:56,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:40:56,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:40:56,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:40:56,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:40:56,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:40:56,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:40:56,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:40:56,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:40:56,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:40:56,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:40:56,861 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-10-17 17:40:56,912 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:40:56,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:40:56,913 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:40:56,913 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:40:56,914 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:40:56,914 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:40:56,915 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:40:56,915 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:40:56,915 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:40:56,915 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:40:56,916 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:40:56,917 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:40:56,917 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:40:56,917 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:40:56,917 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:40:56,917 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:40:56,918 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:40:56,918 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:40:56,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:40:56,919 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:40:56,919 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 17:40:56,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:40:56,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:40:56,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:40:56,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:40:56,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:40:56,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:40:56,920 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-10-17 17:40:56,921 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:40:56,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:40:56,921 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:40:56,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:40:56,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:40:56,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:40:56,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:40:56,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:40:56,923 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:40:56,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:40:56,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:40:56,923 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:40:56,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:40:56,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:40:56,924 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:40:56,924 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_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d853145e48ada6aa212af657ef21b1dd6bc82cb156511f71c23f87b45f2510e [2022-10-17 17:40:57,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:40:57,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:40:57,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:40:57,234 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:40:57,235 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:40:57,236 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i [2022-10-17 17:40:57,293 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/data/c77d925a1/d94df23828ac4249bc6c30daab8a9abb/FLAG0bd370e94 [2022-10-17 17:40:57,837 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:40:57,837 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i [2022-10-17 17:40:57,858 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/data/c77d925a1/d94df23828ac4249bc6c30daab8a9abb/FLAG0bd370e94 [2022-10-17 17:40:58,273 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/data/c77d925a1/d94df23828ac4249bc6c30daab8a9abb [2022-10-17 17:40:58,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:40:58,278 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:40:58,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:40:58,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:40:58,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:40:58,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:40:58" (1/1) ... [2022-10-17 17:40:58,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23b82f8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:58, skipping insertion in model container [2022-10-17 17:40:58,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:40:58" (1/1) ... [2022-10-17 17:40:58,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:40:58,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:40:58,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:40:58,875 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:40:58,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:40:58,999 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:40:59,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:59 WrapperNode [2022-10-17 17:40:59,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:40:59,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:40:59,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:40:59,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:40:59,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:59" (1/1) ... [2022-10-17 17:40:59,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:59" (1/1) ... [2022-10-17 17:40:59,096 INFO L138 Inliner]: procedures = 262, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 115 [2022-10-17 17:40:59,098 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:40:59,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:40:59,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:40:59,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:40:59,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:59" (1/1) ... [2022-10-17 17:40:59,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:59" (1/1) ... [2022-10-17 17:40:59,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:59" (1/1) ... [2022-10-17 17:40:59,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:59" (1/1) ... [2022-10-17 17:40:59,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:59" (1/1) ... [2022-10-17 17:40:59,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:59" (1/1) ... [2022-10-17 17:40:59,170 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:59" (1/1) ... [2022-10-17 17:40:59,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:59" (1/1) ... [2022-10-17 17:40:59,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:40:59,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:40:59,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:40:59,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:40:59,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:59" (1/1) ... [2022-10-17 17:40:59,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:40:59,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:40:59,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:40:59,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:40:59,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:40:59,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:40:59,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:40:59,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:40:59,284 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-10-17 17:40:59,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:40:59,284 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-10-17 17:40:59,284 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-10-17 17:40:59,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:40:59,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:40:59,286 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 17:40:59,490 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:40:59,492 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:40:59,888 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:40:59,900 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:40:59,912 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-17 17:40:59,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:40:59 BoogieIcfgContainer [2022-10-17 17:40:59,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:40:59,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:40:59,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:40:59,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:40:59,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:40:58" (1/3) ... [2022-10-17 17:40:59,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a3a900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:40:59, skipping insertion in model container [2022-10-17 17:40:59,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:59" (2/3) ... [2022-10-17 17:40:59,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a3a900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:40:59, skipping insertion in model container [2022-10-17 17:40:59,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:40:59" (3/3) ... [2022-10-17 17:40:59,925 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_04-funloop_hard1.i [2022-10-17 17:40:59,954 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 17:40:59,972 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:40:59,972 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-17 17:40:59,973 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 17:41:00,111 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-17 17:41:00,162 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-10-17 17:41:00,176 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 128 transitions, 261 flow [2022-10-17 17:41:00,180 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 128 transitions, 261 flow [2022-10-17 17:41:00,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 128 transitions, 261 flow [2022-10-17 17:41:00,294 INFO L130 PetriNetUnfolder]: 6/127 cut-off events. [2022-10-17 17:41:00,299 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 17:41:00,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 127 events. 6/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 233 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2022-10-17 17:41:00,311 INFO L118 LiptonReduction]: Number of co-enabled transitions 4864 [2022-10-17 17:41:02,740 INFO L133 LiptonReduction]: Checked pairs total: 14681 [2022-10-17 17:41:02,741 INFO L135 LiptonReduction]: Total number of compositions: 75 [2022-10-17 17:41:02,753 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 56 transitions, 117 flow [2022-10-17 17:41:02,837 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 595 states, 581 states have (on average 2.044750430292599) internal successors, (1188), 594 states have internal predecessors, (1188), 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) [2022-10-17 17:41:02,868 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:41:02,876 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;@631035b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:41:02,877 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-10-17 17:41:02,881 INFO L276 IsEmpty]: Start isEmpty. Operand has 595 states, 581 states have (on average 2.044750430292599) internal successors, (1188), 594 states have internal predecessors, (1188), 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) [2022-10-17 17:41:02,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 17:41:02,890 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:02,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:41:02,892 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-10-17 17:41:02,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:02,900 INFO L85 PathProgramCache]: Analyzing trace with hash 552578495, now seen corresponding path program 1 times [2022-10-17 17:41:02,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:02,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504781820] [2022-10-17 17:41:02,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:02,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:03,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:41:03,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:03,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504781820] [2022-10-17 17:41:03,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504781820] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:41:03,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:41:03,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 17:41:03,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286922319] [2022-10-17 17:41:03,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:41:03,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:41:03,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:41:03,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:41:03,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:41:03,209 INFO L87 Difference]: Start difference. First operand has 595 states, 581 states have (on average 2.044750430292599) internal successors, (1188), 594 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 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) [2022-10-17 17:41:03,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:41:03,332 INFO L93 Difference]: Finished difference Result 596 states and 1189 transitions. [2022-10-17 17:41:03,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:41:03,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 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 [2022-10-17 17:41:03,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:41:03,359 INFO L225 Difference]: With dead ends: 596 [2022-10-17 17:41:03,359 INFO L226 Difference]: Without dead ends: 596 [2022-10-17 17:41:03,360 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 [2022-10-17 17:41:03,364 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:41:03,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:41:03,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2022-10-17 17:41:03,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2022-10-17 17:41:03,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 582 states have (on average 2.042955326460481) internal successors, (1189), 595 states have internal predecessors, (1189), 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) [2022-10-17 17:41:03,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 1189 transitions. [2022-10-17 17:41:03,471 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 1189 transitions. Word has length 11 [2022-10-17 17:41:03,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:41:03,471 INFO L495 AbstractCegarLoop]: Abstraction has 596 states and 1189 transitions. [2022-10-17 17:41:03,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 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) [2022-10-17 17:41:03,472 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 1189 transitions. [2022-10-17 17:41:03,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 17:41:03,474 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:03,474 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:41:03,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:41:03,476 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-10-17 17:41:03,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:03,478 INFO L85 PathProgramCache]: Analyzing trace with hash -211752277, now seen corresponding path program 1 times [2022-10-17 17:41:03,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:03,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082744704] [2022-10-17 17:41:03,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:03,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:03,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:41:03,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:03,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082744704] [2022-10-17 17:41:03,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082744704] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 17:41:03,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776143791] [2022-10-17 17:41:03,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:03,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:41:03,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:41:03,671 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:41:03,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 17:41:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:03,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 17:41:03,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:41:03,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 17:41:03,778 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:41:03,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776143791] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:41:03,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 17:41:03,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-10-17 17:41:03,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262675977] [2022-10-17 17:41:03,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:41:03,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:41:03,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:41:03,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:41:03,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:41:03,782 INFO L87 Difference]: Start difference. First operand 596 states and 1189 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-10-17 17:41:03,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:41:03,875 INFO L93 Difference]: Finished difference Result 884 states and 1765 transitions. [2022-10-17 17:41:03,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:41:03,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-10-17 17:41:03,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:41:03,882 INFO L225 Difference]: With dead ends: 884 [2022-10-17 17:41:03,882 INFO L226 Difference]: Without dead ends: 884 [2022-10-17 17:41:03,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:41:03,884 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 33 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:41:03,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 73 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:41:03,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2022-10-17 17:41:03,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 614. [2022-10-17 17:41:03,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 600 states have (on average 2.0416666666666665) internal successors, (1225), 613 states have internal predecessors, (1225), 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) [2022-10-17 17:41:03,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 1225 transitions. [2022-10-17 17:41:03,910 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 1225 transitions. Word has length 12 [2022-10-17 17:41:03,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:41:03,910 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 1225 transitions. [2022-10-17 17:41:03,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-10-17 17:41:03,911 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 1225 transitions. [2022-10-17 17:41:03,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 17:41:03,912 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:03,912 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:41:03,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 17:41:04,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:41:04,126 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-10-17 17:41:04,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:04,127 INFO L85 PathProgramCache]: Analyzing trace with hash 206915211, now seen corresponding path program 1 times [2022-10-17 17:41:04,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:04,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880559930] [2022-10-17 17:41:04,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:04,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:04,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:41:04,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:04,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880559930] [2022-10-17 17:41:04,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880559930] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 17:41:04,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860406697] [2022-10-17 17:41:04,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:04,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:41:04,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:41:04,232 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:41:04,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 17:41:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:04,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 17:41:04,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:41:04,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:41:04,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 17:41:04,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:41:04,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860406697] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 17:41:04,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1803742652] [2022-10-17 17:41:04,384 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-10-17 17:41:04,387 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 17:41:04,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-10-17 17:41:04,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009200433] [2022-10-17 17:41:04,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 17:41:04,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 17:41:04,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:41:04,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 17:41:04,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-17 17:41:04,394 INFO L87 Difference]: Start difference. First operand 614 states and 1225 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:41:04,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:41:04,512 INFO L93 Difference]: Finished difference Result 617 states and 1228 transitions. [2022-10-17 17:41:04,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 17:41:04,513 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-17 17:41:04,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:41:04,518 INFO L225 Difference]: With dead ends: 617 [2022-10-17 17:41:04,518 INFO L226 Difference]: Without dead ends: 617 [2022-10-17 17:41:04,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-17 17:41:04,530 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:41:04,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:41:04,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-10-17 17:41:04,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 617. [2022-10-17 17:41:04,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 603 states have (on average 2.0364842454394694) internal successors, (1228), 616 states have internal predecessors, (1228), 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) [2022-10-17 17:41:04,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 1228 transitions. [2022-10-17 17:41:04,557 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 1228 transitions. Word has length 12 [2022-10-17 17:41:04,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:41:04,557 INFO L495 AbstractCegarLoop]: Abstraction has 617 states and 1228 transitions. [2022-10-17 17:41:04,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:41:04,557 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 1228 transitions. [2022-10-17 17:41:04,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 17:41:04,565 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:04,565 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:41:04,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-17 17:41:04,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:41:04,783 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-10-17 17:41:04,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:04,784 INFO L85 PathProgramCache]: Analyzing trace with hash -356391777, now seen corresponding path program 2 times [2022-10-17 17:41:04,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:04,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76564052] [2022-10-17 17:41:04,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:04,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:04,941 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:41:04,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:04,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76564052] [2022-10-17 17:41:04,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76564052] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 17:41:04,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004270712] [2022-10-17 17:41:04,942 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-17 17:41:04,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:41:04,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:41:04,943 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:41:04,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 17:41:05,030 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-10-17 17:41:05,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 17:41:05,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-17 17:41:05,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:41:05,153 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-17 17:41:05,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:05,190 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-17 17:41:05,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:05,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:05,234 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-17 17:41:05,235 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-10-17 17:41:05,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:05,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:05,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:05,299 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-17 17:41:05,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-10-17 17:41:05,335 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-17 17:41:05,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:41:05,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004270712] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:41:05,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 17:41:05,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 13 [2022-10-17 17:41:05,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821490651] [2022-10-17 17:41:05,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:41:05,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 17:41:05,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:41:05,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 17:41:05,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-10-17 17:41:05,338 INFO L87 Difference]: Start difference. First operand 617 states and 1228 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2022-10-17 17:41:05,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:41:05,978 INFO L93 Difference]: Finished difference Result 1292 states and 2578 transitions. [2022-10-17 17:41:05,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-17 17:41:05,978 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 15 [2022-10-17 17:41:05,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:41:05,987 INFO L225 Difference]: With dead ends: 1292 [2022-10-17 17:41:05,987 INFO L226 Difference]: Without dead ends: 1292 [2022-10-17 17:41:05,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2022-10-17 17:41:05,990 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 208 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-17 17:41:05,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 102 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-17 17:41:05,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2022-10-17 17:41:06,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 725. [2022-10-17 17:41:06,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 711 states have (on average 2.030942334739803) internal successors, (1444), 724 states have internal predecessors, (1444), 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) [2022-10-17 17:41:06,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 1444 transitions. [2022-10-17 17:41:06,048 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 1444 transitions. Word has length 15 [2022-10-17 17:41:06,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:41:06,049 INFO L495 AbstractCegarLoop]: Abstraction has 725 states and 1444 transitions. [2022-10-17 17:41:06,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2022-10-17 17:41:06,049 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 1444 transitions. [2022-10-17 17:41:06,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 17:41:06,051 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:06,051 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:41:06,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-17 17:41:06,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:41:06,267 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-10-17 17:41:06,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:06,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1708804052, now seen corresponding path program 1 times [2022-10-17 17:41:06,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:06,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127681250] [2022-10-17 17:41:06,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:06,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:06,430 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:41:06,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:06,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127681250] [2022-10-17 17:41:06,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127681250] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 17:41:06,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666810184] [2022-10-17 17:41:06,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:06,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:41:06,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:41:06,432 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:41:06,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-17 17:41:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:06,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 17:41:06,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:41:06,540 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:41:06,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 17:41:06,596 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:41:06,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666810184] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 17:41:06,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [323775291] [2022-10-17 17:41:06,597 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-10-17 17:41:06,598 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 17:41:06,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-10-17 17:41:06,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862772380] [2022-10-17 17:41:06,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 17:41:06,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-17 17:41:06,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:41:06,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-17 17:41:06,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-10-17 17:41:06,602 INFO L87 Difference]: Start difference. First operand 725 states and 1444 transitions. Second operand has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 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) [2022-10-17 17:41:06,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:41:06,687 INFO L93 Difference]: Finished difference Result 731 states and 1450 transitions. [2022-10-17 17:41:06,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-17 17:41:06,688 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 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 15 [2022-10-17 17:41:06,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:41:06,693 INFO L225 Difference]: With dead ends: 731 [2022-10-17 17:41:06,693 INFO L226 Difference]: Without dead ends: 731 [2022-10-17 17:41:06,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-10-17 17:41:06,695 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:41:06,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:41:06,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-10-17 17:41:06,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 731. [2022-10-17 17:41:06,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 717 states have (on average 2.0223152022315203) internal successors, (1450), 730 states have internal predecessors, (1450), 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) [2022-10-17 17:41:06,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 1450 transitions. [2022-10-17 17:41:06,722 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 1450 transitions. Word has length 15 [2022-10-17 17:41:06,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:41:06,722 INFO L495 AbstractCegarLoop]: Abstraction has 731 states and 1450 transitions. [2022-10-17 17:41:06,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 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) [2022-10-17 17:41:06,723 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 1450 transitions. [2022-10-17 17:41:06,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-17 17:41:06,725 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:06,725 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:41:06,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-17 17:41:06,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:41:06,945 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-10-17 17:41:06,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:06,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1077624748, now seen corresponding path program 2 times [2022-10-17 17:41:06,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:06,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436655331] [2022-10-17 17:41:06,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:06,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:06,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:07,364 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-10-17 17:41:07,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:07,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436655331] [2022-10-17 17:41:07,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436655331] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:41:07,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:41:07,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 17:41:07,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951146549] [2022-10-17 17:41:07,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:41:07,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 17:41:07,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:41:07,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 17:41:07,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 17:41:07,367 INFO L87 Difference]: Start difference. First operand 731 states and 1450 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-10-17 17:41:07,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:41:07,752 INFO L93 Difference]: Finished difference Result 915 states and 1818 transitions. [2022-10-17 17:41:07,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 17:41:07,753 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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 21 [2022-10-17 17:41:07,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:41:07,759 INFO L225 Difference]: With dead ends: 915 [2022-10-17 17:41:07,759 INFO L226 Difference]: Without dead ends: 915 [2022-10-17 17:41:07,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 17:41:07,760 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 74 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 17:41:07,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 27 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 17:41:07,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-10-17 17:41:07,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 851. [2022-10-17 17:41:07,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 837 states have (on average 2.019115890083632) internal successors, (1690), 850 states have internal predecessors, (1690), 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) [2022-10-17 17:41:07,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1690 transitions. [2022-10-17 17:41:07,788 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1690 transitions. Word has length 21 [2022-10-17 17:41:07,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:41:07,788 INFO L495 AbstractCegarLoop]: Abstraction has 851 states and 1690 transitions. [2022-10-17 17:41:07,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-10-17 17:41:07,789 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1690 transitions. [2022-10-17 17:41:07,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-17 17:41:07,790 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:07,790 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:41:07,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 17:41:07,790 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-10-17 17:41:07,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:07,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1841235887, now seen corresponding path program 1 times [2022-10-17 17:41:07,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:07,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163492880] [2022-10-17 17:41:07,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:07,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:08,248 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-10-17 17:41:08,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:08,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163492880] [2022-10-17 17:41:08,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163492880] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:41:08,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:41:08,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 17:41:08,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528782663] [2022-10-17 17:41:08,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:41:08,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 17:41:08,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:41:08,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 17:41:08,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 17:41:08,250 INFO L87 Difference]: Start difference. First operand 851 states and 1690 transitions. Second operand has 6 states, 5 states have (on average 3.6) 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) [2022-10-17 17:41:08,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:41:08,628 INFO L93 Difference]: Finished difference Result 937 states and 1862 transitions. [2022-10-17 17:41:08,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 17:41:08,628 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) 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 27 [2022-10-17 17:41:08,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:41:08,635 INFO L225 Difference]: With dead ends: 937 [2022-10-17 17:41:08,636 INFO L226 Difference]: Without dead ends: 937 [2022-10-17 17:41:08,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 17:41:08,637 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 41 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 17:41:08,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 40 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 17:41:08,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2022-10-17 17:41:08,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 917. [2022-10-17 17:41:08,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 903 states have (on average 2.017718715393134) internal successors, (1822), 916 states have internal predecessors, (1822), 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) [2022-10-17 17:41:08,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1822 transitions. [2022-10-17 17:41:08,670 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1822 transitions. Word has length 27 [2022-10-17 17:41:08,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:41:08,671 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1822 transitions. [2022-10-17 17:41:08,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) 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) [2022-10-17 17:41:08,671 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1822 transitions. [2022-10-17 17:41:08,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-17 17:41:08,672 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:08,672 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:41:08,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 17:41:08,673 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-10-17 17:41:08,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:08,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1690315318, now seen corresponding path program 1 times [2022-10-17 17:41:08,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:08,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668407902] [2022-10-17 17:41:08,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:08,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:09,105 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-10-17 17:41:09,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:09,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668407902] [2022-10-17 17:41:09,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668407902] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:41:09,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:41:09,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 17:41:09,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049434109] [2022-10-17 17:41:09,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:41:09,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 17:41:09,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:41:09,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 17:41:09,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 17:41:09,108 INFO L87 Difference]: Start difference. First operand 917 states and 1822 transitions. Second operand has 6 states, 5 states have (on average 3.6) 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) [2022-10-17 17:41:09,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:41:09,577 INFO L93 Difference]: Finished difference Result 1079 states and 2146 transitions. [2022-10-17 17:41:09,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 17:41:09,577 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) 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 27 [2022-10-17 17:41:09,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:41:09,585 INFO L225 Difference]: With dead ends: 1079 [2022-10-17 17:41:09,585 INFO L226 Difference]: Without dead ends: 1047 [2022-10-17 17:41:09,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 17:41:09,586 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 70 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 17:41:09,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 27 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 17:41:09,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2022-10-17 17:41:09,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1010. [2022-10-17 17:41:09,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 996 states have (on average 2.0120481927710845) internal successors, (2004), 1009 states have internal predecessors, (2004), 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) [2022-10-17 17:41:09,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 2004 transitions. [2022-10-17 17:41:09,620 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 2004 transitions. Word has length 27 [2022-10-17 17:41:09,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:41:09,620 INFO L495 AbstractCegarLoop]: Abstraction has 1010 states and 2004 transitions. [2022-10-17 17:41:09,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) 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) [2022-10-17 17:41:09,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 2004 transitions. [2022-10-17 17:41:09,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-17 17:41:09,622 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:09,622 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:41:09,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-17 17:41:09,622 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-10-17 17:41:09,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:09,623 INFO L85 PathProgramCache]: Analyzing trace with hash -693190654, now seen corresponding path program 1 times [2022-10-17 17:41:09,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:09,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128112960] [2022-10-17 17:41:09,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:09,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:11,209 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-17 17:41:11,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:11,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128112960] [2022-10-17 17:41:11,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128112960] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 17:41:11,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788998194] [2022-10-17 17:41:11,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:11,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:41:11,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:41:11,211 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:41:11,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-17 17:41:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:11,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 28 conjunts are in the unsatisfiable core [2022-10-17 17:41:11,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:41:11,429 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-17 17:41:11,489 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-10-17 17:41:11,490 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:41:11,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788998194] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:41:11,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 17:41:11,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 16 [2022-10-17 17:41:11,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114211030] [2022-10-17 17:41:11,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:41:11,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 17:41:11,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:41:11,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 17:41:11,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-10-17 17:41:11,493 INFO L87 Difference]: Start difference. First operand 1010 states and 2004 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2022-10-17 17:41:11,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:41:11,643 INFO L93 Difference]: Finished difference Result 1765 states and 3488 transitions. [2022-10-17 17:41:11,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 17:41:11,643 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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 31 [2022-10-17 17:41:11,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:41:11,660 INFO L225 Difference]: With dead ends: 1765 [2022-10-17 17:41:11,660 INFO L226 Difference]: Without dead ends: 1765 [2022-10-17 17:41:11,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2022-10-17 17:41:11,662 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 166 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:41:11,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 118 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:41:11,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2022-10-17 17:41:11,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1057. [2022-10-17 17:41:11,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 1043 states have (on average 1.9865771812080537) internal successors, (2072), 1056 states have internal predecessors, (2072), 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) [2022-10-17 17:41:11,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 2072 transitions. [2022-10-17 17:41:11,739 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 2072 transitions. Word has length 31 [2022-10-17 17:41:11,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:41:11,740 INFO L495 AbstractCegarLoop]: Abstraction has 1057 states and 2072 transitions. [2022-10-17 17:41:11,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2022-10-17 17:41:11,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 2072 transitions. [2022-10-17 17:41:11,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-17 17:41:11,744 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:11,744 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:41:11,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-17 17:41:11,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-10-17 17:41:11,972 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-10-17 17:41:11,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:11,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1324895332, now seen corresponding path program 2 times [2022-10-17 17:41:11,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:11,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950288923] [2022-10-17 17:41:11,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:11,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:13,286 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-17 17:41:13,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:13,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950288923] [2022-10-17 17:41:13,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950288923] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 17:41:13,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090058303] [2022-10-17 17:41:13,287 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-17 17:41:13,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:41:13,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:41:13,288 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:41:13,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-17 17:41:13,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-10-17 17:41:13,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 17:41:13,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 28 conjunts are in the unsatisfiable core [2022-10-17 17:41:13,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:41:13,440 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-17 17:41:13,514 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-10-17 17:41:13,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:41:13,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090058303] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:41:13,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 17:41:13,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 16 [2022-10-17 17:41:13,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951506239] [2022-10-17 17:41:13,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:41:13,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 17:41:13,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:41:13,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 17:41:13,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-10-17 17:41:13,516 INFO L87 Difference]: Start difference. First operand 1057 states and 2072 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2022-10-17 17:41:13,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:41:13,699 INFO L93 Difference]: Finished difference Result 1791 states and 3527 transitions. [2022-10-17 17:41:13,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 17:41:13,700 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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 31 [2022-10-17 17:41:13,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:41:13,712 INFO L225 Difference]: With dead ends: 1791 [2022-10-17 17:41:13,713 INFO L226 Difference]: Without dead ends: 1791 [2022-10-17 17:41:13,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-10-17 17:41:13,714 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 140 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:41:13,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 148 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:41:13,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2022-10-17 17:41:13,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1044. [2022-10-17 17:41:13,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 1030 states have (on average 1.9864077669902913) internal successors, (2046), 1043 states have internal predecessors, (2046), 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) [2022-10-17 17:41:13,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 2046 transitions. [2022-10-17 17:41:13,756 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 2046 transitions. Word has length 31 [2022-10-17 17:41:13,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:41:13,756 INFO L495 AbstractCegarLoop]: Abstraction has 1044 states and 2046 transitions. [2022-10-17 17:41:13,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2022-10-17 17:41:13,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 2046 transitions. [2022-10-17 17:41:13,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-17 17:41:13,757 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:13,757 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:41:13,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-17 17:41:13,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:41:13,971 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-10-17 17:41:13,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:13,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1251394592, now seen corresponding path program 3 times [2022-10-17 17:41:13,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:13,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036618231] [2022-10-17 17:41:13,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:13,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:15,085 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-17 17:41:15,086 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:15,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036618231] [2022-10-17 17:41:15,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036618231] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 17:41:15,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151736603] [2022-10-17 17:41:15,086 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-17 17:41:15,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:41:15,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:41:15,087 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:41:15,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-17 17:41:15,233 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-17 17:41:15,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 17:41:15,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 28 conjunts are in the unsatisfiable core [2022-10-17 17:41:15,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:41:15,313 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-17 17:41:15,374 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-10-17 17:41:15,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:41:15,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151736603] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:41:15,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 17:41:15,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 16 [2022-10-17 17:41:15,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84751954] [2022-10-17 17:41:15,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:41:15,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 17:41:15,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:41:15,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 17:41:15,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2022-10-17 17:41:15,376 INFO L87 Difference]: Start difference. First operand 1044 states and 2046 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2022-10-17 17:41:15,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:41:15,572 INFO L93 Difference]: Finished difference Result 2510 states and 4934 transitions. [2022-10-17 17:41:15,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 17:41:15,573 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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 31 [2022-10-17 17:41:15,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:41:15,590 INFO L225 Difference]: With dead ends: 2510 [2022-10-17 17:41:15,590 INFO L226 Difference]: Without dead ends: 2510 [2022-10-17 17:41:15,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-10-17 17:41:15,592 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 203 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 17:41:15,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 120 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 17:41:15,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2510 states. [2022-10-17 17:41:15,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2510 to 1087. [2022-10-17 17:41:15,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 1073 states have (on average 1.9869524697110903) internal successors, (2132), 1086 states have internal predecessors, (2132), 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) [2022-10-17 17:41:15,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 2132 transitions. [2022-10-17 17:41:15,642 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 2132 transitions. Word has length 31 [2022-10-17 17:41:15,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:41:15,643 INFO L495 AbstractCegarLoop]: Abstraction has 1087 states and 2132 transitions. [2022-10-17 17:41:15,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2022-10-17 17:41:15,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 2132 transitions. [2022-10-17 17:41:15,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-17 17:41:15,644 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:15,644 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:41:15,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-17 17:41:15,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:41:15,861 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-10-17 17:41:15,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:15,861 INFO L85 PathProgramCache]: Analyzing trace with hash 729248132, now seen corresponding path program 1 times [2022-10-17 17:41:15,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:15,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339386005] [2022-10-17 17:41:15,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:15,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:15,956 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-10-17 17:41:15,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:15,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339386005] [2022-10-17 17:41:15,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339386005] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 17:41:15,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605212248] [2022-10-17 17:41:15,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:15,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:41:15,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:41:15,958 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:41:15,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-17 17:41:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:16,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 17:41:16,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:41:16,109 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-10-17 17:41:16,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 17:41:16,137 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-10-17 17:41:16,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605212248] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 17:41:16,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [130556733] [2022-10-17 17:41:16,139 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-10-17 17:41:16,139 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 17:41:16,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-17 17:41:16,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990225815] [2022-10-17 17:41:16,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 17:41:16,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 17:41:16,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:41:16,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 17:41:16,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-17 17:41:16,142 INFO L87 Difference]: Start difference. First operand 1087 states and 2132 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2022-10-17 17:41:16,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:41:16,269 INFO L93 Difference]: Finished difference Result 2461 states and 4880 transitions. [2022-10-17 17:41:16,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 17:41:16,269 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 35 [2022-10-17 17:41:16,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:41:16,288 INFO L225 Difference]: With dead ends: 2461 [2022-10-17 17:41:16,288 INFO L226 Difference]: Without dead ends: 2461 [2022-10-17 17:41:16,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-17 17:41:16,290 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 168 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:41:16,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 166 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:41:16,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2461 states. [2022-10-17 17:41:16,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2461 to 2312. [2022-10-17 17:41:16,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2312 states, 2298 states have (on average 2.058746736292428) internal successors, (4731), 2311 states have internal predecessors, (4731), 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) [2022-10-17 17:41:16,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 4731 transitions. [2022-10-17 17:41:16,402 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 4731 transitions. Word has length 35 [2022-10-17 17:41:16,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:41:16,402 INFO L495 AbstractCegarLoop]: Abstraction has 2312 states and 4731 transitions. [2022-10-17 17:41:16,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2022-10-17 17:41:16,402 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 4731 transitions. [2022-10-17 17:41:16,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-17 17:41:16,403 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:16,403 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:41:16,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-10-17 17:41:16,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:41:16,619 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-10-17 17:41:16,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:16,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1147915620, now seen corresponding path program 1 times [2022-10-17 17:41:16,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:16,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160212378] [2022-10-17 17:41:16,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:16,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:16,956 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-10-17 17:41:16,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:16,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160212378] [2022-10-17 17:41:16,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160212378] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:41:16,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:41:16,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 17:41:16,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239099876] [2022-10-17 17:41:16,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:41:16,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 17:41:16,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:41:16,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 17:41:16,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 17:41:16,959 INFO L87 Difference]: Start difference. First operand 2312 states and 4731 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 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) [2022-10-17 17:41:17,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:41:17,275 INFO L93 Difference]: Finished difference Result 2646 states and 5385 transitions. [2022-10-17 17:41:17,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 17:41:17,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 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 35 [2022-10-17 17:41:17,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:41:17,294 INFO L225 Difference]: With dead ends: 2646 [2022-10-17 17:41:17,294 INFO L226 Difference]: Without dead ends: 2646 [2022-10-17 17:41:17,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 17:41:17,295 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 42 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 17:41:17,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 38 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 17:41:17,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2022-10-17 17:41:17,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 2494. [2022-10-17 17:41:17,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2481 states have (on average 2.047964530431278) internal successors, (5081), 2493 states have internal predecessors, (5081), 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) [2022-10-17 17:41:17,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 5081 transitions. [2022-10-17 17:41:17,380 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 5081 transitions. Word has length 35 [2022-10-17 17:41:17,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:41:17,380 INFO L495 AbstractCegarLoop]: Abstraction has 2494 states and 5081 transitions. [2022-10-17 17:41:17,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 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) [2022-10-17 17:41:17,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 5081 transitions. [2022-10-17 17:41:17,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-17 17:41:17,382 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:17,382 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:41:17,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-17 17:41:17,383 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-10-17 17:41:17,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:17,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1640230685, now seen corresponding path program 1 times [2022-10-17 17:41:17,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:17,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714407970] [2022-10-17 17:41:17,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:17,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:18,097 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-10-17 17:41:18,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:18,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714407970] [2022-10-17 17:41:18,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714407970] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 17:41:18,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788381166] [2022-10-17 17:41:18,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:18,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:41:18,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:41:18,100 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:41:18,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-17 17:41:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:18,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 46 conjunts are in the unsatisfiable core [2022-10-17 17:41:18,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:41:18,607 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-17 17:41:18,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:18,656 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-17 17:41:18,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:18,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:18,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:18,746 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-10-17 17:41:18,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:18,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:18,787 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-10-17 17:41:18,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:18,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:18,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:18,833 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-10-17 17:41:18,876 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-10-17 17:41:18,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 17:41:19,399 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-10-17 17:41:19,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788381166] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 17:41:19,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [202373416] [2022-10-17 17:41:19,400 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-10-17 17:41:19,401 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 17:41:19,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 29 [2022-10-17 17:41:19,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147103026] [2022-10-17 17:41:19,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 17:41:19,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-10-17 17:41:19,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:41:19,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-10-17 17:41:19,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=744, Unknown=0, NotChecked=0, Total=870 [2022-10-17 17:41:19,405 INFO L87 Difference]: Start difference. First operand 2494 states and 5081 transitions. Second operand has 30 states, 29 states have (on average 3.4827586206896552) internal successors, (101), 30 states have internal predecessors, (101), 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) [2022-10-17 17:41:23,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:41:23,762 INFO L93 Difference]: Finished difference Result 10958 states and 22208 transitions. [2022-10-17 17:41:23,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-10-17 17:41:23,763 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.4827586206896552) internal successors, (101), 30 states have internal predecessors, (101), 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 45 [2022-10-17 17:41:23,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:41:23,826 INFO L225 Difference]: With dead ends: 10958 [2022-10-17 17:41:23,826 INFO L226 Difference]: Without dead ends: 10950 [2022-10-17 17:41:23,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1029 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=676, Invalid=2864, Unknown=0, NotChecked=0, Total=3540 [2022-10-17 17:41:23,828 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 1033 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 3510 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 4523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 3510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 726 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-10-17 17:41:23,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 273 Invalid, 4523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 3510 Invalid, 0 Unknown, 726 Unchecked, 2.9s Time] [2022-10-17 17:41:23,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10950 states. [2022-10-17 17:41:24,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10950 to 5234. [2022-10-17 17:41:24,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5234 states, 5221 states have (on average 2.1271787013981998) internal successors, (11106), 5233 states have internal predecessors, (11106), 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) [2022-10-17 17:41:24,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5234 states to 5234 states and 11106 transitions. [2022-10-17 17:41:24,130 INFO L78 Accepts]: Start accepts. Automaton has 5234 states and 11106 transitions. Word has length 45 [2022-10-17 17:41:24,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:41:24,131 INFO L495 AbstractCegarLoop]: Abstraction has 5234 states and 11106 transitions. [2022-10-17 17:41:24,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.4827586206896552) internal successors, (101), 30 states have internal predecessors, (101), 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) [2022-10-17 17:41:24,131 INFO L276 IsEmpty]: Start isEmpty. Operand 5234 states and 11106 transitions. [2022-10-17 17:41:24,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-17 17:41:24,134 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:41:24,134 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:41:24,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-17 17:41:24,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:41:24,356 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-10-17 17:41:24,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:41:24,357 INFO L85 PathProgramCache]: Analyzing trace with hash -813798765, now seen corresponding path program 1 times [2022-10-17 17:41:24,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:41:24,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888068448] [2022-10-17 17:41:24,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:24,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:41:24,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:25,857 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-10-17 17:41:25,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:41:25,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888068448] [2022-10-17 17:41:25,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888068448] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 17:41:25,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379966891] [2022-10-17 17:41:25,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:41:25,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:41:25,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:41:25,860 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:41:25,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316c9762-7583-4544-953c-338b653e8b49/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-17 17:41:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:41:26,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 56 conjunts are in the unsatisfiable core [2022-10-17 17:41:26,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:41:26,316 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-17 17:41:26,373 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-17 17:41:26,427 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-10-17 17:41:26,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-10-17 17:41:26,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:26,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:26,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:26,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:26,670 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-10-17 17:41:26,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:26,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:26,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:26,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:41:26,704 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56