./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029bfb9a-de93-43cc-a8ba-2330dc9b22aa/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029bfb9a-de93-43cc-a8ba-2330dc9b22aa/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029bfb9a-de93-43cc-a8ba-2330dc9b22aa/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029bfb9a-de93-43cc-a8ba-2330dc9b22aa/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029bfb9a-de93-43cc-a8ba-2330dc9b22aa/bin/utaipan-eEHZpOm5b7/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029bfb9a-de93-43cc-a8ba-2330dc9b22aa/bin/utaipan-eEHZpOm5b7 --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 1ae344c6ba282c956275e824e33ce3fb7903cfcf4f1d8d86b2dd8809a46e14d8 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:07:42,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:07:42,578 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:07:42,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:07:42,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:07:42,637 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:07:42,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:07:42,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:07:42,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:07:42,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:07:42,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:07:42,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:07:42,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:07:42,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:07:42,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:07:42,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:07:42,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:07:42,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:07:42,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:07:42,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:07:42,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:07:42,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:07:42,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:07:42,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:07:42,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:07:42,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:07:42,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:07:42,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:07:42,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:07:42,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:07:42,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:07:42,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:07:42,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:07:42,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:07:42,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:07:42,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:07:42,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:07:42,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:07:42,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:07:42,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:07:42,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:07:42,712 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029bfb9a-de93-43cc-a8ba-2330dc9b22aa/bin/utaipan-eEHZpOm5b7/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-25 18:07:42,754 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:07:42,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:07:42,755 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:07:42,756 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:07:42,763 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:07:42,763 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:07:42,764 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:07:42,764 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:07:42,764 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:07:42,765 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:07:42,766 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:07:42,766 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:07:42,766 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:07:42,767 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:07:42,767 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:07:42,767 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:07:42,768 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:07:42,768 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:07:42,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:07:42,769 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:07:42,769 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 18:07:42,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:07:42,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:07:42,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:07:42,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:07:42,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:07:42,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:07:42,773 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-25 18:07:42,773 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:07:42,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:07:42,773 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:07:42,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:07:42,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:07:42,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:07:42,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:07:42,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:07:42,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:07:42,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:07:42,776 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:07:42,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:07:42,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:07:42,776 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:07:42,777 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:07:42,777 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029bfb9a-de93-43cc-a8ba-2330dc9b22aa/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029bfb9a-de93-43cc-a8ba-2330dc9b22aa/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ae344c6ba282c956275e824e33ce3fb7903cfcf4f1d8d86b2dd8809a46e14d8 [2021-11-25 18:07:43,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:07:43,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:07:43,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:07:43,137 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:07:43,137 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:07:43,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029bfb9a-de93-43cc-a8ba-2330dc9b22aa/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2021-11-25 18:07:43,228 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029bfb9a-de93-43cc-a8ba-2330dc9b22aa/bin/utaipan-eEHZpOm5b7/data/b9d13a6e9/75d7e4024d474f5faa625d9b3c4bca95/FLAGb9dec197d [2021-11-25 18:07:43,814 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:07:43,814 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029bfb9a-de93-43cc-a8ba-2330dc9b22aa/sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2021-11-25 18:07:43,849 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029bfb9a-de93-43cc-a8ba-2330dc9b22aa/bin/utaipan-eEHZpOm5b7/data/b9d13a6e9/75d7e4024d474f5faa625d9b3c4bca95/FLAGb9dec197d [2021-11-25 18:07:44,087 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029bfb9a-de93-43cc-a8ba-2330dc9b22aa/bin/utaipan-eEHZpOm5b7/data/b9d13a6e9/75d7e4024d474f5faa625d9b3c4bca95 [2021-11-25 18:07:44,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:07:44,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:07:44,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:07:44,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:07:44,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:07:44,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:07:44" (1/1) ... [2021-11-25 18:07:44,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ba729f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:44, skipping insertion in model container [2021-11-25 18:07:44,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:07:44" (1/1) ... [2021-11-25 18:07:44,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:07:44,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:07:44,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:07:44,696 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:07:44,754 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:07:44,822 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:07:44,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:44 WrapperNode [2021-11-25 18:07:44,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:07:44,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:07:44,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:07:44,824 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:07:44,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:44" (1/1) ... [2021-11-25 18:07:44,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:44" (1/1) ... [2021-11-25 18:07:44,893 INFO L137 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 68 [2021-11-25 18:07:44,894 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:07:44,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:07:44,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:07:44,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:07:44,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:44" (1/1) ... [2021-11-25 18:07:44,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:44" (1/1) ... [2021-11-25 18:07:44,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:44" (1/1) ... [2021-11-25 18:07:44,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:44" (1/1) ... [2021-11-25 18:07:44,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:44" (1/1) ... [2021-11-25 18:07:44,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:44" (1/1) ... [2021-11-25 18:07:44,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:44" (1/1) ... [2021-11-25 18:07:44,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:07:44,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:07:44,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:07:44,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:07:44,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:44" (1/1) ... [2021-11-25 18:07:44,937 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:07:44,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029bfb9a-de93-43cc-a8ba-2330dc9b22aa/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:07:44,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029bfb9a-de93-43cc-a8ba-2330dc9b22aa/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:07:44,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029bfb9a-de93-43cc-a8ba-2330dc9b22aa/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:07:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:07:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:07:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:07:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-25 18:07:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:07:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-25 18:07:45,036 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-25 18:07:45,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:07:45,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:07:45,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:07:45,038 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-25 18:07:45,218 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:07:45,219 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:07:45,473 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:07:45,480 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:07:45,480 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 18:07:45,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:07:45 BoogieIcfgContainer [2021-11-25 18:07:45,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:07:45,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:07:45,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:07:45,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:07:45,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:07:44" (1/3) ... [2021-11-25 18:07:45,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a4d4f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:07:45, skipping insertion in model container [2021-11-25 18:07:45,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:44" (2/3) ... [2021-11-25 18:07:45,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a4d4f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:07:45, skipping insertion in model container [2021-11-25 18:07:45,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:07:45" (3/3) ... [2021-11-25 18:07:45,490 INFO L111 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11-equ_nr.i [2021-11-25 18:07:45,494 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-25 18:07:45,495 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:07:45,495 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 18:07:45,495 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-25 18:07:45,519 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,519 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,519 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,519 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,520 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,520 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,520 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,520 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,525 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,525 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,525 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,525 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,525 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,526 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,529 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,529 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,529 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,529 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,529 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,530 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:07:45,534 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-25 18:07:45,580 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:07:45,587 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:07:45,588 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-25 18:07:45,605 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 18:07:45,620 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 89 transitions, 183 flow [2021-11-25 18:07:45,623 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 89 transitions, 183 flow [2021-11-25 18:07:45,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 89 transitions, 183 flow [2021-11-25 18:07:45,677 INFO L129 PetriNetUnfolder]: 1/88 cut-off events. [2021-11-25 18:07:45,677 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-25 18:07:45,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 88 events. 1/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2021-11-25 18:07:45,682 INFO L116 LiptonReduction]: Number of co-enabled transitions 600 [2021-11-25 18:07:50,331 INFO L131 LiptonReduction]: Checked pairs total: 2731 [2021-11-25 18:07:50,332 INFO L133 LiptonReduction]: Total number of compositions: 74 [2021-11-25 18:07:50,353 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 21 transitions, 47 flow [2021-11-25 18:07:50,369 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 98 states, 95 states have (on average 1.831578947368421) internal successors, (174), 97 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:50,372 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 95 states have (on average 1.831578947368421) internal successors, (174), 97 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:50,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 18:07:50,379 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:50,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:50,380 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-11-25 18:07:50,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:50,386 INFO L85 PathProgramCache]: Analyzing trace with hash -815693284, now seen corresponding path program 1 times [2021-11-25 18:07:50,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:50,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143898800] [2021-11-25 18:07:50,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:50,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:50,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:07:50,776 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:50,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143898800] [2021-11-25 18:07:50,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143898800] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:50,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:50,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:07:50,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640834802] [2021-11-25 18:07:50,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:50,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:07:50,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:50,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:07:50,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:07:50,820 INFO L87 Difference]: Start difference. First operand has 98 states, 95 states have (on average 1.831578947368421) internal successors, (174), 97 states have internal predecessors, (174), 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 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:51,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:51,004 INFO L93 Difference]: Finished difference Result 123 states and 218 transitions. [2021-11-25 18:07:51,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:07:51,006 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-25 18:07:51,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:51,015 INFO L225 Difference]: With dead ends: 123 [2021-11-25 18:07:51,015 INFO L226 Difference]: Without dead ends: 109 [2021-11-25 18:07:51,016 INFO L932 BasicCegarLoop]: 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 [2021-11-25 18:07:51,019 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 20 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:51,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 6 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:07:51,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-11-25 18:07:51,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-11-25 18:07:51,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 106 states have (on average 1.8113207547169812) internal successors, (192), 108 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:51,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 192 transitions. [2021-11-25 18:07:51,061 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 192 transitions. Word has length 9 [2021-11-25 18:07:51,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:51,061 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 192 transitions. [2021-11-25 18:07:51,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:51,062 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 192 transitions. [2021-11-25 18:07:51,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 18:07:51,063 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:51,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:51,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:07:51,063 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-11-25 18:07:51,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:51,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1771868198, now seen corresponding path program 1 times [2021-11-25 18:07:51,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:51,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854429099] [2021-11-25 18:07:51,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:51,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:51,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:51,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:07:51,268 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:51,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854429099] [2021-11-25 18:07:51,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854429099] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:51,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:51,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:07:51,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463127869] [2021-11-25 18:07:51,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:51,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:07:51,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:51,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:07:51,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:07:51,276 INFO L87 Difference]: Start difference. First operand 109 states and 192 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:51,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:51,404 INFO L93 Difference]: Finished difference Result 137 states and 241 transitions. [2021-11-25 18:07:51,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:07:51,405 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-25 18:07:51,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:51,407 INFO L225 Difference]: With dead ends: 137 [2021-11-25 18:07:51,408 INFO L226 Difference]: Without dead ends: 123 [2021-11-25 18:07:51,408 INFO L932 BasicCegarLoop]: 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 [2021-11-25 18:07:51,410 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 20 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:51,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 5 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:07:51,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-11-25 18:07:51,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 119. [2021-11-25 18:07:51,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 116 states have (on average 1.793103448275862) internal successors, (208), 118 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:51,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 208 transitions. [2021-11-25 18:07:51,425 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 208 transitions. Word has length 9 [2021-11-25 18:07:51,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:51,425 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 208 transitions. [2021-11-25 18:07:51,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:51,426 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 208 transitions. [2021-11-25 18:07:51,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:07:51,427 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:51,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:51,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:07:51,428 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-11-25 18:07:51,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:51,428 INFO L85 PathProgramCache]: Analyzing trace with hash -103419356, now seen corresponding path program 1 times [2021-11-25 18:07:51,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:51,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775320915] [2021-11-25 18:07:51,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:51,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:51,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:07:51,756 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:51,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775320915] [2021-11-25 18:07:51,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775320915] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:51,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:51,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 18:07:51,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027785635] [2021-11-25 18:07:51,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:51,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 18:07:51,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:51,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 18:07:51,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:07:51,759 INFO L87 Difference]: Start difference. First operand 119 states and 208 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:52,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:52,335 INFO L93 Difference]: Finished difference Result 125 states and 219 transitions. [2021-11-25 18:07:52,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 18:07:52,336 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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 [2021-11-25 18:07:52,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:52,338 INFO L225 Difference]: With dead ends: 125 [2021-11-25 18:07:52,338 INFO L226 Difference]: Without dead ends: 125 [2021-11-25 18:07:52,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=114, Invalid=192, Unknown=0, NotChecked=0, Total=306 [2021-11-25 18:07:52,340 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 68 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:52,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 0 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 18:07:52,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-11-25 18:07:52,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 118. [2021-11-25 18:07:52,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 115 states have (on average 1.791304347826087) internal successors, (206), 117 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:52,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 206 transitions. [2021-11-25 18:07:52,354 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 206 transitions. Word has length 12 [2021-11-25 18:07:52,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:52,354 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 206 transitions. [2021-11-25 18:07:52,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:52,355 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 206 transitions. [2021-11-25 18:07:52,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:07:52,356 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:52,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:52,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:07:52,357 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-11-25 18:07:52,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:52,358 INFO L85 PathProgramCache]: Analyzing trace with hash -116825306, now seen corresponding path program 2 times [2021-11-25 18:07:52,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:52,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030362781] [2021-11-25 18:07:52,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:52,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:52,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:07:52,625 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:52,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030362781] [2021-11-25 18:07:52,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030362781] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:52,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:52,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 18:07:52,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787282168] [2021-11-25 18:07:52,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:52,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 18:07:52,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:52,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 18:07:52,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:07:52,628 INFO L87 Difference]: Start difference. First operand 118 states and 206 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:52,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:52,871 INFO L93 Difference]: Finished difference Result 167 states and 292 transitions. [2021-11-25 18:07:52,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:07:52,872 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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 [2021-11-25 18:07:52,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:52,874 INFO L225 Difference]: With dead ends: 167 [2021-11-25 18:07:52,874 INFO L226 Difference]: Without dead ends: 153 [2021-11-25 18:07:52,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2021-11-25 18:07:52,876 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 61 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:52,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 0 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 18:07:52,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-11-25 18:07:52,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 135. [2021-11-25 18:07:52,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 132 states have (on average 1.7803030303030303) internal successors, (235), 134 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:52,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 235 transitions. [2021-11-25 18:07:52,890 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 235 transitions. Word has length 12 [2021-11-25 18:07:52,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:52,891 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 235 transitions. [2021-11-25 18:07:52,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:52,891 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 235 transitions. [2021-11-25 18:07:52,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:07:52,893 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:52,893 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:52,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:07:52,894 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-11-25 18:07:52,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:52,894 INFO L85 PathProgramCache]: Analyzing trace with hash -595639853, now seen corresponding path program 1 times [2021-11-25 18:07:52,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:52,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024483784] [2021-11-25 18:07:52,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:52,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:53,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:07:53,289 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:53,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024483784] [2021-11-25 18:07:53,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024483784] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:53,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:53,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 18:07:53,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031237613] [2021-11-25 18:07:53,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:53,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 18:07:53,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:53,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 18:07:53,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:07:53,295 INFO L87 Difference]: Start difference. First operand 135 states and 235 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:53,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:53,499 INFO L93 Difference]: Finished difference Result 163 states and 279 transitions. [2021-11-25 18:07:53,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:07:53,499 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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 [2021-11-25 18:07:53,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:53,501 INFO L225 Difference]: With dead ends: 163 [2021-11-25 18:07:53,501 INFO L226 Difference]: Without dead ends: 109 [2021-11-25 18:07:53,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-11-25 18:07:53,502 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 58 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:53,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 0 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 18:07:53,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-11-25 18:07:53,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 94. [2021-11-25 18:07:53,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 92 states have (on average 1.6630434782608696) internal successors, (153), 93 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:53,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 153 transitions. [2021-11-25 18:07:53,511 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 153 transitions. Word has length 12 [2021-11-25 18:07:53,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:53,512 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 153 transitions. [2021-11-25 18:07:53,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:53,512 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 153 transitions. [2021-11-25 18:07:53,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:07:53,513 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:53,513 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:53,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:07:53,514 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-11-25 18:07:53,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:53,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1358181731, now seen corresponding path program 2 times [2021-11-25 18:07:53,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:53,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404879768] [2021-11-25 18:07:53,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:53,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:53,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:07:53,854 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:53,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404879768] [2021-11-25 18:07:53,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404879768] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:53,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:53,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 18:07:53,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484328671] [2021-11-25 18:07:53,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:53,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 18:07:53,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:53,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 18:07:53,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:07:53,857 INFO L87 Difference]: Start difference. First operand 94 states and 153 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:54,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:54,146 INFO L93 Difference]: Finished difference Result 118 states and 190 transitions. [2021-11-25 18:07:54,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:07:54,161 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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 [2021-11-25 18:07:54,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:54,162 INFO L225 Difference]: With dead ends: 118 [2021-11-25 18:07:54,162 INFO L226 Difference]: Without dead ends: 86 [2021-11-25 18:07:54,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2021-11-25 18:07:54,164 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 49 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:54,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 0 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 18:07:54,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-25 18:07:54,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-11-25 18:07:54,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 84 states have (on average 1.630952380952381) internal successors, (137), 85 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:54,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 137 transitions. [2021-11-25 18:07:54,171 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 137 transitions. Word has length 12 [2021-11-25 18:07:54,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:54,171 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 137 transitions. [2021-11-25 18:07:54,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:54,172 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 137 transitions. [2021-11-25 18:07:54,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:07:54,173 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:54,173 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:54,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 18:07:54,174 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-11-25 18:07:54,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:54,174 INFO L85 PathProgramCache]: Analyzing trace with hash 609105939, now seen corresponding path program 3 times [2021-11-25 18:07:54,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:54,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912495601] [2021-11-25 18:07:54,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:54,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:54,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:07:54,436 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:54,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912495601] [2021-11-25 18:07:54,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912495601] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:54,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:54,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 18:07:54,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098649542] [2021-11-25 18:07:54,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:54,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 18:07:54,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:54,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 18:07:54,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:07:54,439 INFO L87 Difference]: Start difference. First operand 86 states and 137 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:54,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:54,706 INFO L93 Difference]: Finished difference Result 94 states and 144 transitions. [2021-11-25 18:07:54,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:07:54,707 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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 [2021-11-25 18:07:54,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:54,707 INFO L225 Difference]: With dead ends: 94 [2021-11-25 18:07:54,707 INFO L226 Difference]: Without dead ends: 85 [2021-11-25 18:07:54,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2021-11-25 18:07:54,709 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 41 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:54,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 0 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 18:07:54,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-25 18:07:54,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-11-25 18:07:54,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 83 states have (on average 1.6265060240963856) internal successors, (135), 84 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:54,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 135 transitions. [2021-11-25 18:07:54,715 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 135 transitions. Word has length 12 [2021-11-25 18:07:54,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:54,716 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 135 transitions. [2021-11-25 18:07:54,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:54,716 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 135 transitions. [2021-11-25 18:07:54,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:07:54,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:54,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:54,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 18:07:54,717 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-11-25 18:07:54,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:54,718 INFO L85 PathProgramCache]: Analyzing trace with hash 713672349, now seen corresponding path program 4 times [2021-11-25 18:07:54,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:54,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097386377] [2021-11-25 18:07:54,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:54,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:55,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:07:55,039 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:55,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097386377] [2021-11-25 18:07:55,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097386377] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:55,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:55,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 18:07:55,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076533450] [2021-11-25 18:07:55,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:55,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 18:07:55,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:55,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 18:07:55,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:07:55,041 INFO L87 Difference]: Start difference. First operand 85 states and 135 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:55,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:55,397 INFO L93 Difference]: Finished difference Result 101 states and 157 transitions. [2021-11-25 18:07:55,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:07:55,397 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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 [2021-11-25 18:07:55,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:55,398 INFO L225 Difference]: With dead ends: 101 [2021-11-25 18:07:55,398 INFO L226 Difference]: Without dead ends: 84 [2021-11-25 18:07:55,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-11-25 18:07:55,400 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 48 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:55,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 0 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 18:07:55,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-11-25 18:07:55,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-11-25 18:07:55,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 82 states have (on average 1.6219512195121952) internal successors, (133), 83 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:55,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 133 transitions. [2021-11-25 18:07:55,405 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 133 transitions. Word has length 12 [2021-11-25 18:07:55,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:55,405 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 133 transitions. [2021-11-25 18:07:55,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:55,406 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 133 transitions. [2021-11-25 18:07:55,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:07:55,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:55,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:55,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 18:07:55,407 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-11-25 18:07:55,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:55,408 INFO L85 PathProgramCache]: Analyzing trace with hash -737359597, now seen corresponding path program 5 times [2021-11-25 18:07:55,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:55,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848760088] [2021-11-25 18:07:55,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:55,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:55,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:07:55,696 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:55,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848760088] [2021-11-25 18:07:55,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848760088] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:55,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:55,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 18:07:55,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191605226] [2021-11-25 18:07:55,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:55,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 18:07:55,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:55,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 18:07:55,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:07:55,698 INFO L87 Difference]: Start difference. First operand 84 states and 133 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:56,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:56,034 INFO L93 Difference]: Finished difference Result 78 states and 122 transitions. [2021-11-25 18:07:56,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:07:56,035 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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 [2021-11-25 18:07:56,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:56,036 INFO L225 Difference]: With dead ends: 78 [2021-11-25 18:07:56,036 INFO L226 Difference]: Without dead ends: 50 [2021-11-25 18:07:56,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-11-25 18:07:56,037 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 38 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:56,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 0 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 18:07:56,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-25 18:07:56,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-25 18:07:56,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.6326530612244898) internal successors, (80), 49 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:56,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 80 transitions. [2021-11-25 18:07:56,040 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 80 transitions. Word has length 12 [2021-11-25 18:07:56,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:56,041 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 80 transitions. [2021-11-25 18:07:56,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:56,041 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 80 transitions. [2021-11-25 18:07:56,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:07:56,042 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:56,042 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:56,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 18:07:56,042 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-11-25 18:07:56,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:56,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1330214296, now seen corresponding path program 3 times [2021-11-25 18:07:56,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:56,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386559547] [2021-11-25 18:07:56,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:56,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:56,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:56,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:07:56,461 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:56,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386559547] [2021-11-25 18:07:56,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386559547] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:56,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:56,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 18:07:56,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157009148] [2021-11-25 18:07:56,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:56,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 18:07:56,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:56,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 18:07:56,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:07:56,463 INFO L87 Difference]: Start difference. First operand 50 states and 80 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:56,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:56,632 INFO L93 Difference]: Finished difference Result 62 states and 100 transitions. [2021-11-25 18:07:56,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:07:56,632 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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 [2021-11-25 18:07:56,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:56,633 INFO L225 Difference]: With dead ends: 62 [2021-11-25 18:07:56,633 INFO L226 Difference]: Without dead ends: 62 [2021-11-25 18:07:56,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2021-11-25 18:07:56,634 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 30 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:56,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 0 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:07:56,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-25 18:07:56,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 52. [2021-11-25 18:07:56,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 51 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:56,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 84 transitions. [2021-11-25 18:07:56,638 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 84 transitions. Word has length 12 [2021-11-25 18:07:56,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:56,638 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 84 transitions. [2021-11-25 18:07:56,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:56,638 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 84 transitions. [2021-11-25 18:07:56,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:07:56,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:56,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:56,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 18:07:56,639 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-11-25 18:07:56,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:56,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1330617916, now seen corresponding path program 4 times [2021-11-25 18:07:56,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:56,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280955287] [2021-11-25 18:07:56,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:56,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:56,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:07:56,861 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:56,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280955287] [2021-11-25 18:07:56,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280955287] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:56,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:56,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 18:07:56,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539139746] [2021-11-25 18:07:56,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:56,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 18:07:56,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:56,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 18:07:56,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:07:56,862 INFO L87 Difference]: Start difference. First operand 52 states and 84 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:56,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:56,996 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2021-11-25 18:07:56,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:07:56,997 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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 [2021-11-25 18:07:56,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:56,997 INFO L225 Difference]: With dead ends: 73 [2021-11-25 18:07:56,997 INFO L226 Difference]: Without dead ends: 39 [2021-11-25 18:07:56,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2021-11-25 18:07:56,998 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 27 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:56,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 0 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:07:56,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-25 18:07:57,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-25 18:07:57,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.5526315789473684) internal successors, (59), 38 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:57,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 59 transitions. [2021-11-25 18:07:57,001 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 59 transitions. Word has length 12 [2021-11-25 18:07:57,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:57,001 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 59 transitions. [2021-11-25 18:07:57,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:57,002 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 59 transitions. [2021-11-25 18:07:57,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:07:57,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:57,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:57,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 18:07:57,002 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-11-25 18:07:57,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:57,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1031900006, now seen corresponding path program 5 times [2021-11-25 18:07:57,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:57,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259628111] [2021-11-25 18:07:57,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:57,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:57,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:07:57,419 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:57,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259628111] [2021-11-25 18:07:57,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259628111] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:57,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:57,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 18:07:57,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614559829] [2021-11-25 18:07:57,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:57,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 18:07:57,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:57,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 18:07:57,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:07:57,421 INFO L87 Difference]: Start difference. First operand 39 states and 59 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:57,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:57,572 INFO L93 Difference]: Finished difference Result 45 states and 68 transitions. [2021-11-25 18:07:57,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:07:57,573 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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 [2021-11-25 18:07:57,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:57,573 INFO L225 Difference]: With dead ends: 45 [2021-11-25 18:07:57,573 INFO L226 Difference]: Without dead ends: 45 [2021-11-25 18:07:57,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2021-11-25 18:07:57,574 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 21 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:57,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 0 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:07:57,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-25 18:07:57,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2021-11-25 18:07:57,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.55) internal successors, (62), 40 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:57,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 62 transitions. [2021-11-25 18:07:57,578 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 62 transitions. Word has length 12 [2021-11-25 18:07:57,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:57,578 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 62 transitions. [2021-11-25 18:07:57,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:57,579 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 62 transitions. [2021-11-25 18:07:57,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:07:57,579 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:57,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:57,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 18:07:57,580 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-11-25 18:07:57,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:57,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1031496386, now seen corresponding path program 6 times [2021-11-25 18:07:57,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:57,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595386489] [2021-11-25 18:07:57,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:57,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:57,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:07:57,872 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:57,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595386489] [2021-11-25 18:07:57,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595386489] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:57,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:57,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 18:07:57,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866467319] [2021-11-25 18:07:57,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:57,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 18:07:57,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:57,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 18:07:57,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:07:57,874 INFO L87 Difference]: Start difference. First operand 41 states and 62 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:57,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:57,975 INFO L93 Difference]: Finished difference Result 57 states and 84 transitions. [2021-11-25 18:07:57,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:07:57,975 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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 [2021-11-25 18:07:57,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:57,976 INFO L225 Difference]: With dead ends: 57 [2021-11-25 18:07:57,976 INFO L226 Difference]: Without dead ends: 31 [2021-11-25 18:07:57,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2021-11-25 18:07:57,977 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 28 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:57,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 0 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:07:57,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-25 18:07:57,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-11-25 18:07:57,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 30 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:57,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2021-11-25 18:07:57,979 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 12 [2021-11-25 18:07:57,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:57,979 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2021-11-25 18:07:57,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:57,979 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2021-11-25 18:07:57,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:07:57,980 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:57,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:57,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 18:07:57,980 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-11-25 18:07:57,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:57,981 INFO L85 PathProgramCache]: Analyzing trace with hash -526275004, now seen corresponding path program 7 times [2021-11-25 18:07:57,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:57,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952203876] [2021-11-25 18:07:57,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:57,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:58,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:07:58,342 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:58,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952203876] [2021-11-25 18:07:58,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952203876] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:58,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:58,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 18:07:58,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452330132] [2021-11-25 18:07:58,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:58,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 18:07:58,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:58,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 18:07:58,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:07:58,345 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:58,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:58,441 INFO L93 Difference]: Finished difference Result 39 states and 50 transitions. [2021-11-25 18:07:58,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:07:58,442 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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 [2021-11-25 18:07:58,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:58,443 INFO L225 Difference]: With dead ends: 39 [2021-11-25 18:07:58,443 INFO L226 Difference]: Without dead ends: 23 [2021-11-25 18:07:58,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2021-11-25 18:07:58,444 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 15 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:58,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 0 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:07:58,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-25 18:07:58,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-11-25 18:07:58,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:58,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-11-25 18:07:58,446 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2021-11-25 18:07:58,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:58,447 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-11-25 18:07:58,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:58,448 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-11-25 18:07:58,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:07:58,449 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:58,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:58,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 18:07:58,449 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-11-25 18:07:58,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:58,450 INFO L85 PathProgramCache]: Analyzing trace with hash -575615224, now seen corresponding path program 8 times [2021-11-25 18:07:58,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:58,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292338041] [2021-11-25 18:07:58,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:58,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:58,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:07:58,848 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:58,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292338041] [2021-11-25 18:07:58,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292338041] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:58,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:58,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 18:07:58,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612903297] [2021-11-25 18:07:58,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:58,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 18:07:58,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:58,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 18:07:58,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:07:58,849 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:59,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:59,179 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2021-11-25 18:07:59,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:07:59,179 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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 [2021-11-25 18:07:59,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:59,180 INFO L225 Difference]: With dead ends: 17 [2021-11-25 18:07:59,180 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 18:07:59,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2021-11-25 18:07:59,181 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 24 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:59,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 0 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:07:59,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 18:07:59,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 18:07:59,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:59,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 18:07:59,182 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-11-25 18:07:59,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:59,182 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 18:07:59,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-11-25 18:07:59,183 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 18:07:59,183 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 18:07:59,186 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2021-11-25 18:07:59,186 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2021-11-25 18:07:59,187 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2021-11-25 18:07:59,187 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2021-11-25 18:07:59,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 18:07:59,189 INFO L732 BasicCegarLoop]: Path program histogram: [8, 5, 1, 1] [2021-11-25 18:07:59,194 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-25 18:07:59,194 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 18:07:59,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:07:59 BasicIcfg [2021-11-25 18:07:59,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 18:07:59,198 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 18:07:59,198 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 18:07:59,198 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 18:07:59,198 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:07:45" (3/4) ... [2021-11-25 18:07:59,201 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 18:07:59,208 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-11-25 18:07:59,213 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-25 18:07:59,213 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-25 18:07:59,214 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-25 18:07:59,250 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029bfb9a-de93-43cc-a8ba-2330dc9b22aa/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 18:07:59,250 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 18:07:59,251 INFO L158 Benchmark]: Toolchain (without parser) took 15157.33ms. Allocated memory was 113.2MB in the beginning and 140.5MB in the end (delta: 27.3MB). Free memory was 76.3MB in the beginning and 48.3MB in the end (delta: 28.0MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2021-11-25 18:07:59,252 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 77.6MB. Free memory was 52.8MB in the beginning and 52.8MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:07:59,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 724.93ms. Allocated memory is still 113.2MB. Free memory was 76.1MB in the beginning and 71.0MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 18:07:59,253 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.82ms. Allocated memory is still 113.2MB. Free memory was 71.0MB in the beginning and 68.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:07:59,253 INFO L158 Benchmark]: Boogie Preprocessor took 32.53ms. Allocated memory is still 113.2MB. Free memory was 68.9MB in the beginning and 67.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:07:59,254 INFO L158 Benchmark]: RCFGBuilder took 554.43ms. Allocated memory is still 113.2MB. Free memory was 67.3MB in the beginning and 54.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-25 18:07:59,254 INFO L158 Benchmark]: TraceAbstraction took 13713.36ms. Allocated memory was 113.2MB in the beginning and 140.5MB in the end (delta: 27.3MB). Free memory was 53.7MB in the beginning and 51.5MB in the end (delta: 2.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-11-25 18:07:59,255 INFO L158 Benchmark]: Witness Printer took 53.10ms. Allocated memory is still 140.5MB. Free memory was 51.5MB in the beginning and 48.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-25 18:07:59,257 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 77.6MB. Free memory was 52.8MB in the beginning and 52.8MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 724.93ms. Allocated memory is still 113.2MB. Free memory was 76.1MB in the beginning and 71.0MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.82ms. Allocated memory is still 113.2MB. Free memory was 71.0MB in the beginning and 68.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.53ms. Allocated memory is still 113.2MB. Free memory was 68.9MB in the beginning and 67.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 554.43ms. Allocated memory is still 113.2MB. Free memory was 67.3MB in the beginning and 54.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 13713.36ms. Allocated memory was 113.2MB in the beginning and 140.5MB in the end (delta: 27.3MB). Free memory was 53.7MB in the beginning and 51.5MB in the end (delta: 2.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 53.10ms. Allocated memory is still 140.5MB. Free memory was 51.5MB in the beginning and 48.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.7s, 92 PlacesBefore, 25 PlacesAfterwards, 89 TransitionsBefore, 21 TransitionsAfterwards, 600 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 74 TotalNumberOfCompositions, 2731 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 878, positive: 633, positive conditional: 0, positive unconditional: 633, negative: 245, negative conditional: 0, negative unconditional: 245, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 360, positive: 325, positive conditional: 0, positive unconditional: 325, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 360, positive: 321, positive conditional: 0, positive unconditional: 321, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 39, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 170, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 159, negative conditional: 0, negative unconditional: 159, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 878, positive: 308, positive conditional: 0, positive unconditional: 308, negative: 210, negative conditional: 0, negative unconditional: 210, unknown: 360, unknown conditional: 0, unknown unconditional: 360] , Statistics on independence cache: Total cache size (in pairs): 65, Positive cache size: 41, Positive conditional cache size: 0, Positive unconditional cache size: 41, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1019]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 996]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 13.6s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 548 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 548 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 89 mSDsCounter, 476 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2088 IncrementalHoareTripleChecker+Invalid, 2564 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 476 mSolverCounterUnsat, 11 mSDtfsCounter, 2088 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=4, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 58 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 4304 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-25 18:07:59,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029bfb9a-de93-43cc-a8ba-2330dc9b22aa/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE