./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d24e1fe59577ae07a5b7a898c9dc79f871eafbb8fdf9529a0c24eed9c094f3d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:37:15,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:37:15,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:37:15,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:37:15,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:37:15,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:37:15,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:37:15,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:37:15,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:37:15,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:37:15,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:37:15,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:37:15,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:37:15,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:37:15,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:37:15,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:37:15,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:37:15,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:37:15,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:37:15,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:37:15,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:37:15,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:37:15,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:37:15,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:37:15,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:37:15,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:37:15,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:37:15,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:37:15,783 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:37:15,784 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:37:15,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:37:15,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:37:15,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:37:15,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:37:15,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:37:15,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:37:15,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:37:15,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:37:15,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:37:15,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:37:15,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:37:15,794 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:37:15,830 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:37:15,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:37:15,833 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:37:15,833 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:37:15,835 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:37:15,835 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:37:15,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:37:15,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:37:15,836 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:37:15,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:37:15,838 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:37:15,838 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:37:15,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:37:15,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:37:15,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:37:15,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:37:15,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:37:15,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:37:15,839 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:37:15,840 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:37:15,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:37:15,840 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:37:15,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:37:15,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:37:15,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:37:15,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:37:15,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:37:15,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:37:15,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:37:15,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:37:15,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:37:15,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:37:15,843 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:37:15,843 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:37:15,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:37:15,843 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d24e1fe59577ae07a5b7a898c9dc79f871eafbb8fdf9529a0c24eed9c094f3d [2022-11-16 12:37:16,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:37:16,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:37:16,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:37:16,213 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:37:16,214 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:37:16,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2022-11-16 12:37:16,297 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/data/f70664179/f5470c88c82d4696972148668e263299/FLAG88a3270b1 [2022-11-16 12:37:17,025 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:37:17,035 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2022-11-16 12:37:17,050 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/data/f70664179/f5470c88c82d4696972148668e263299/FLAG88a3270b1 [2022-11-16 12:37:17,292 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/data/f70664179/f5470c88c82d4696972148668e263299 [2022-11-16 12:37:17,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:37:17,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:37:17,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:37:17,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:37:17,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:37:17,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@202a81f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17, skipping insertion in model container [2022-11-16 12:37:17,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:37:17,385 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:37:17,930 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i[41323,41336] [2022-11-16 12:37:17,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:37:17,992 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:37:18,023 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i[41323,41336] [2022-11-16 12:37:18,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:37:18,087 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:37:18,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:18 WrapperNode [2022-11-16 12:37:18,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:37:18,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:37:18,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:37:18,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:37:18,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:18" (1/1) ... [2022-11-16 12:37:18,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:18" (1/1) ... [2022-11-16 12:37:18,142 INFO L138 Inliner]: procedures = 273, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 185 [2022-11-16 12:37:18,142 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:37:18,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:37:18,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:37:18,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:37:18,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:18" (1/1) ... [2022-11-16 12:37:18,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:18" (1/1) ... [2022-11-16 12:37:18,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:18" (1/1) ... [2022-11-16 12:37:18,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:18" (1/1) ... [2022-11-16 12:37:18,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:18" (1/1) ... [2022-11-16 12:37:18,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:18" (1/1) ... [2022-11-16 12:37:18,179 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:18" (1/1) ... [2022-11-16 12:37:18,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:18" (1/1) ... [2022-11-16 12:37:18,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:37:18,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:37:18,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:37:18,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:37:18,186 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:18" (1/1) ... [2022-11-16 12:37:18,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:37:18,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:37:18,231 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:37:18,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:37:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:37:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:37:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:37:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:37:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:37:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:37:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 12:37:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 12:37:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:37:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:37:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:37:18,275 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:37:18,417 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:37:18,419 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:37:18,823 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:37:18,831 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:37:18,832 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-16 12:37:18,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:37:18 BoogieIcfgContainer [2022-11-16 12:37:18,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:37:18,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:37:18,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:37:18,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:37:18,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:37:17" (1/3) ... [2022-11-16 12:37:18,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e10612b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:37:18, skipping insertion in model container [2022-11-16 12:37:18,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:18" (2/3) ... [2022-11-16 12:37:18,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e10612b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:37:18, skipping insertion in model container [2022-11-16 12:37:18,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:37:18" (3/3) ... [2022-11-16 12:37:18,843 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_27-funptr_racing.i [2022-11-16 12:37:18,851 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:37:18,861 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:37:18,862 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-16 12:37:18,862 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:37:18,953 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 12:37:18,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 187 places, 203 transitions, 414 flow [2022-11-16 12:37:19,148 INFO L130 PetriNetUnfolder]: 24/256 cut-off events. [2022-11-16 12:37:19,148 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:37:19,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 256 events. 24/256 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 871 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 159. Up to 4 conditions per place. [2022-11-16 12:37:19,157 INFO L82 GeneralOperation]: Start removeDead. Operand has 187 places, 203 transitions, 414 flow [2022-11-16 12:37:19,171 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 187 places, 203 transitions, 414 flow [2022-11-16 12:37:19,190 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:37:19,198 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1a64696c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:37:19,199 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-16 12:37:19,221 INFO L130 PetriNetUnfolder]: 1/53 cut-off events. [2022-11-16 12:37:19,222 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:37:19,222 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:19,223 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:19,223 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-16 12:37:19,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:19,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1057548445, now seen corresponding path program 1 times [2022-11-16 12:37:19,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:19,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847495167] [2022-11-16 12:37:19,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:19,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:19,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:19,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:19,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847495167] [2022-11-16 12:37:19,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847495167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:19,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:19,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:19,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620101221] [2022-11-16 12:37:19,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:19,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:37:19,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:19,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:37:19,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:37:19,541 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 203 [2022-11-16 12:37:19,544 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 203 transitions, 414 flow. Second operand has 2 states, 2 states have (on average 183.5) internal successors, (367), 2 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:19,545 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:19,545 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 203 [2022-11-16 12:37:19,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:19,626 INFO L130 PetriNetUnfolder]: 2/232 cut-off events. [2022-11-16 12:37:19,626 INFO L131 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-11-16 12:37:19,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 232 events. 2/232 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 562 event pairs, 0 based on Foata normal form. 22/232 useless extension candidates. Maximal degree in co-relation 143. Up to 3 conditions per place. [2022-11-16 12:37:19,629 INFO L137 encePairwiseOnDemand]: 186/203 looper letters, 2 selfloop transitions, 0 changer transitions 0/185 dead transitions. [2022-11-16 12:37:19,630 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 185 transitions, 382 flow [2022-11-16 12:37:19,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:37:19,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 12:37:19,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 385 transitions. [2022-11-16 12:37:19,644 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9482758620689655 [2022-11-16 12:37:19,645 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 385 transitions. [2022-11-16 12:37:19,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 385 transitions. [2022-11-16 12:37:19,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:19,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 385 transitions. [2022-11-16 12:37:19,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 192.5) internal successors, (385), 2 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:19,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:19,659 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:19,661 INFO L175 Difference]: Start difference. First operand has 187 places, 203 transitions, 414 flow. Second operand 2 states and 385 transitions. [2022-11-16 12:37:19,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 185 transitions, 382 flow [2022-11-16 12:37:19,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 185 transitions, 382 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:37:19,675 INFO L231 Difference]: Finished difference. Result has 187 places, 185 transitions, 378 flow [2022-11-16 12:37:19,677 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=378, PETRI_PLACES=187, PETRI_TRANSITIONS=185} [2022-11-16 12:37:19,681 INFO L288 CegarLoopForPetriNet]: 187 programPoint places, 0 predicate places. [2022-11-16 12:37:19,682 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 185 transitions, 378 flow [2022-11-16 12:37:19,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 183.5) internal successors, (367), 2 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:19,684 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:19,684 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:19,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:37:19,685 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-16 12:37:19,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:19,686 INFO L85 PathProgramCache]: Analyzing trace with hash -170044764, now seen corresponding path program 1 times [2022-11-16 12:37:19,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:19,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713136684] [2022-11-16 12:37:19,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:19,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:19,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:19,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:19,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713136684] [2022-11-16 12:37:19,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713136684] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:19,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:19,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:37:19,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304086033] [2022-11-16 12:37:19,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:19,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:19,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:19,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:19,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:19,934 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 203 [2022-11-16 12:37:19,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 185 transitions, 378 flow. Second operand has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:19,936 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:19,936 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 203 [2022-11-16 12:37:19,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:19,997 INFO L130 PetriNetUnfolder]: 1/204 cut-off events. [2022-11-16 12:37:19,997 INFO L131 PetriNetUnfolder]: For 3/9 co-relation queries the response was YES. [2022-11-16 12:37:19,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 204 events. 1/204 cut-off events. For 3/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 337 event pairs, 0 based on Foata normal form. 1/187 useless extension candidates. Maximal degree in co-relation 219. Up to 7 conditions per place. [2022-11-16 12:37:20,000 INFO L137 encePairwiseOnDemand]: 200/203 looper letters, 9 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2022-11-16 12:37:20,000 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 187 transitions, 404 flow [2022-11-16 12:37:20,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:20,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:20,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 540 transitions. [2022-11-16 12:37:20,004 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8866995073891626 [2022-11-16 12:37:20,004 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 540 transitions. [2022-11-16 12:37:20,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 540 transitions. [2022-11-16 12:37:20,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:20,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 540 transitions. [2022-11-16 12:37:20,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:20,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:20,010 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:20,010 INFO L175 Difference]: Start difference. First operand has 187 places, 185 transitions, 378 flow. Second operand 3 states and 540 transitions. [2022-11-16 12:37:20,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 187 transitions, 404 flow [2022-11-16 12:37:20,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 187 transitions, 404 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:37:20,015 INFO L231 Difference]: Finished difference. Result has 190 places, 185 transitions, 386 flow [2022-11-16 12:37:20,016 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=190, PETRI_TRANSITIONS=185} [2022-11-16 12:37:20,017 INFO L288 CegarLoopForPetriNet]: 187 programPoint places, 3 predicate places. [2022-11-16 12:37:20,017 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 185 transitions, 386 flow [2022-11-16 12:37:20,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:20,018 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:20,018 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:20,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:37:20,019 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-16 12:37:20,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:20,019 INFO L85 PathProgramCache]: Analyzing trace with hash 982951935, now seen corresponding path program 1 times [2022-11-16 12:37:20,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:20,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643016719] [2022-11-16 12:37:20,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:20,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:20,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:20,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:20,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643016719] [2022-11-16 12:37:20,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643016719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:20,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:20,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:20,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064814403] [2022-11-16 12:37:20,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:20,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:20,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:20,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:20,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:20,085 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 203 [2022-11-16 12:37:20,086 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 185 transitions, 386 flow. Second operand has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:20,086 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:20,086 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 203 [2022-11-16 12:37:20,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:20,219 INFO L130 PetriNetUnfolder]: 13/563 cut-off events. [2022-11-16 12:37:20,219 INFO L131 PetriNetUnfolder]: For 8/12 co-relation queries the response was YES. [2022-11-16 12:37:20,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 563 events. 13/563 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2841 event pairs, 2 based on Foata normal form. 1/502 useless extension candidates. Maximal degree in co-relation 604. Up to 17 conditions per place. [2022-11-16 12:37:20,225 INFO L137 encePairwiseOnDemand]: 199/203 looper letters, 10 selfloop transitions, 3 changer transitions 0/190 dead transitions. [2022-11-16 12:37:20,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 190 transitions, 425 flow [2022-11-16 12:37:20,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:20,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:20,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 545 transitions. [2022-11-16 12:37:20,229 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8949096880131363 [2022-11-16 12:37:20,229 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 545 transitions. [2022-11-16 12:37:20,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 545 transitions. [2022-11-16 12:37:20,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:20,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 545 transitions. [2022-11-16 12:37:20,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:20,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:20,238 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:20,238 INFO L175 Difference]: Start difference. First operand has 190 places, 185 transitions, 386 flow. Second operand 3 states and 545 transitions. [2022-11-16 12:37:20,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 190 transitions, 425 flow [2022-11-16 12:37:20,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 190 transitions, 421 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:37:20,245 INFO L231 Difference]: Finished difference. Result has 192 places, 187 transitions, 404 flow [2022-11-16 12:37:20,245 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=404, PETRI_PLACES=192, PETRI_TRANSITIONS=187} [2022-11-16 12:37:20,246 INFO L288 CegarLoopForPetriNet]: 187 programPoint places, 5 predicate places. [2022-11-16 12:37:20,247 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 187 transitions, 404 flow [2022-11-16 12:37:20,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:20,247 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:20,248 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:20,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:37:20,248 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-16 12:37:20,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:20,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1458308472, now seen corresponding path program 1 times [2022-11-16 12:37:20,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:20,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284731351] [2022-11-16 12:37:20,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:20,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:20,282 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:37:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:20,330 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:37:20,330 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:37:20,331 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2022-11-16 12:37:20,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2022-11-16 12:37:20,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2022-11-16 12:37:20,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2022-11-16 12:37:20,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2022-11-16 12:37:20,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2022-11-16 12:37:20,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2022-11-16 12:37:20,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2022-11-16 12:37:20,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2022-11-16 12:37:20,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2022-11-16 12:37:20,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2022-11-16 12:37:20,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2022-11-16 12:37:20,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2022-11-16 12:37:20,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2022-11-16 12:37:20,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2022-11-16 12:37:20,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2022-11-16 12:37:20,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2022-11-16 12:37:20,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2022-11-16 12:37:20,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2022-11-16 12:37:20,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2022-11-16 12:37:20,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2022-11-16 12:37:20,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2022-11-16 12:37:20,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:37:20,348 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-16 12:37:20,351 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-16 12:37:20,351 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-16 12:37:20,442 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 12:37:20,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 278 places, 306 transitions, 630 flow [2022-11-16 12:37:20,571 INFO L130 PetriNetUnfolder]: 45/443 cut-off events. [2022-11-16 12:37:20,572 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 12:37:20,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 443 events. 45/443 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1913 event pairs, 0 based on Foata normal form. 0/366 useless extension candidates. Maximal degree in co-relation 282. Up to 8 conditions per place. [2022-11-16 12:37:20,581 INFO L82 GeneralOperation]: Start removeDead. Operand has 278 places, 306 transitions, 630 flow [2022-11-16 12:37:20,590 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 278 places, 306 transitions, 630 flow [2022-11-16 12:37:20,601 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:37:20,602 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1a64696c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:37:20,605 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-16 12:37:20,610 INFO L130 PetriNetUnfolder]: 1/51 cut-off events. [2022-11-16 12:37:20,615 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:37:20,615 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:20,615 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:20,616 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 12:37:20,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:20,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1225232157, now seen corresponding path program 1 times [2022-11-16 12:37:20,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:20,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284701896] [2022-11-16 12:37:20,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:20,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:20,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:20,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:20,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:20,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284701896] [2022-11-16 12:37:20,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284701896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:20,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:20,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:20,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832636697] [2022-11-16 12:37:20,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:20,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:37:20,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:20,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:37:20,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:37:20,695 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 306 [2022-11-16 12:37:20,695 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 306 transitions, 630 flow. Second operand has 2 states, 2 states have (on average 272.5) internal successors, (545), 2 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:20,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:20,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 306 [2022-11-16 12:37:20,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:20,803 INFO L130 PetriNetUnfolder]: 5/400 cut-off events. [2022-11-16 12:37:20,804 INFO L131 PetriNetUnfolder]: For 18/22 co-relation queries the response was YES. [2022-11-16 12:37:20,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 400 events. 5/400 cut-off events. For 18/22 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1483 event pairs, 0 based on Foata normal form. 64/424 useless extension candidates. Maximal degree in co-relation 252. Up to 7 conditions per place. [2022-11-16 12:37:20,811 INFO L137 encePairwiseOnDemand]: 277/306 looper letters, 4 selfloop transitions, 0 changer transitions 0/276 dead transitions. [2022-11-16 12:37:20,812 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 276 transitions, 578 flow [2022-11-16 12:37:20,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:37:20,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 12:37:20,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 577 transitions. [2022-11-16 12:37:20,815 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9428104575163399 [2022-11-16 12:37:20,815 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 577 transitions. [2022-11-16 12:37:20,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 577 transitions. [2022-11-16 12:37:20,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:20,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 577 transitions. [2022-11-16 12:37:20,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 288.5) internal successors, (577), 2 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:20,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 306.0) internal successors, (918), 3 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:20,820 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 306.0) internal successors, (918), 3 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:20,820 INFO L175 Difference]: Start difference. First operand has 278 places, 306 transitions, 630 flow. Second operand 2 states and 577 transitions. [2022-11-16 12:37:20,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 276 transitions, 578 flow [2022-11-16 12:37:20,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 276 transitions, 578 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:37:20,826 INFO L231 Difference]: Finished difference. Result has 278 places, 276 transitions, 570 flow [2022-11-16 12:37:20,826 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=570, PETRI_PLACES=278, PETRI_TRANSITIONS=276} [2022-11-16 12:37:20,828 INFO L288 CegarLoopForPetriNet]: 278 programPoint places, 0 predicate places. [2022-11-16 12:37:20,828 INFO L495 AbstractCegarLoop]: Abstraction has has 278 places, 276 transitions, 570 flow [2022-11-16 12:37:20,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 272.5) internal successors, (545), 2 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:20,829 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:20,829 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:20,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:37:20,829 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 12:37:20,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:20,830 INFO L85 PathProgramCache]: Analyzing trace with hash -337728476, now seen corresponding path program 1 times [2022-11-16 12:37:20,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:20,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996192814] [2022-11-16 12:37:20,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:20,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:20,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:20,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:20,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996192814] [2022-11-16 12:37:20,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996192814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:20,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:20,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:37:20,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535519846] [2022-11-16 12:37:20,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:20,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:20,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:20,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:20,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:20,942 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 306 [2022-11-16 12:37:20,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 276 transitions, 570 flow. Second operand has 3 states, 3 states have (on average 266.0) internal successors, (798), 3 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:20,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:20,943 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 306 [2022-11-16 12:37:20,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:21,086 INFO L130 PetriNetUnfolder]: 4/372 cut-off events. [2022-11-16 12:37:21,086 INFO L131 PetriNetUnfolder]: For 14/33 co-relation queries the response was YES. [2022-11-16 12:37:21,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 408 conditions, 372 events. 4/372 cut-off events. For 14/33 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1299 event pairs, 0 based on Foata normal form. 1/337 useless extension candidates. Maximal degree in co-relation 403. Up to 16 conditions per place. [2022-11-16 12:37:21,094 INFO L137 encePairwiseOnDemand]: 303/306 looper letters, 13 selfloop transitions, 2 changer transitions 0/280 dead transitions. [2022-11-16 12:37:21,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 280 transitions, 608 flow [2022-11-16 12:37:21,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:21,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:21,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 811 transitions. [2022-11-16 12:37:21,097 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.883442265795207 [2022-11-16 12:37:21,097 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 811 transitions. [2022-11-16 12:37:21,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 811 transitions. [2022-11-16 12:37:21,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:21,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 811 transitions. [2022-11-16 12:37:21,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:21,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:21,103 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:21,104 INFO L175 Difference]: Start difference. First operand has 278 places, 276 transitions, 570 flow. Second operand 3 states and 811 transitions. [2022-11-16 12:37:21,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 280 transitions, 608 flow [2022-11-16 12:37:21,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 280 transitions, 608 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:37:21,110 INFO L231 Difference]: Finished difference. Result has 281 places, 277 transitions, 582 flow [2022-11-16 12:37:21,110 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=582, PETRI_PLACES=281, PETRI_TRANSITIONS=277} [2022-11-16 12:37:21,111 INFO L288 CegarLoopForPetriNet]: 278 programPoint places, 3 predicate places. [2022-11-16 12:37:21,111 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 277 transitions, 582 flow [2022-11-16 12:37:21,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 266.0) internal successors, (798), 3 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:21,112 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:21,113 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:21,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:37:21,113 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 12:37:21,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:21,114 INFO L85 PathProgramCache]: Analyzing trace with hash 347365028, now seen corresponding path program 1 times [2022-11-16 12:37:21,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:21,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537426483] [2022-11-16 12:37:21,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:21,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:21,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:21,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:21,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537426483] [2022-11-16 12:37:21,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537426483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:21,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:21,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:21,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117867629] [2022-11-16 12:37:21,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:21,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:21,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:21,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:21,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:21,184 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 306 [2022-11-16 12:37:21,185 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 277 transitions, 582 flow. Second operand has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:21,185 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:21,185 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 306 [2022-11-16 12:37:21,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:21,874 INFO L130 PetriNetUnfolder]: 148/3264 cut-off events. [2022-11-16 12:37:21,875 INFO L131 PetriNetUnfolder]: For 75/119 co-relation queries the response was YES. [2022-11-16 12:37:21,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3560 conditions, 3264 events. 148/3264 cut-off events. For 75/119 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 31751 event pairs, 32 based on Foata normal form. 6/2874 useless extension candidates. Maximal degree in co-relation 3553. Up to 156 conditions per place. [2022-11-16 12:37:21,915 INFO L137 encePairwiseOnDemand]: 299/306 looper letters, 18 selfloop transitions, 5 changer transitions 0/287 dead transitions. [2022-11-16 12:37:21,915 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 287 transitions, 659 flow [2022-11-16 12:37:21,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:21,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:21,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 814 transitions. [2022-11-16 12:37:21,919 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8867102396514162 [2022-11-16 12:37:21,919 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 814 transitions. [2022-11-16 12:37:21,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 814 transitions. [2022-11-16 12:37:21,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:21,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 814 transitions. [2022-11-16 12:37:21,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:21,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:21,927 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:21,927 INFO L175 Difference]: Start difference. First operand has 281 places, 277 transitions, 582 flow. Second operand 3 states and 814 transitions. [2022-11-16 12:37:21,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 287 transitions, 659 flow [2022-11-16 12:37:21,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 287 transitions, 657 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:37:21,936 INFO L231 Difference]: Finished difference. Result has 284 places, 282 transitions, 624 flow [2022-11-16 12:37:21,937 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=624, PETRI_PLACES=284, PETRI_TRANSITIONS=282} [2022-11-16 12:37:21,938 INFO L288 CegarLoopForPetriNet]: 278 programPoint places, 6 predicate places. [2022-11-16 12:37:21,939 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 282 transitions, 624 flow [2022-11-16 12:37:21,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:21,941 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:21,941 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:21,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:37:21,941 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 12:37:21,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:21,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1384295542, now seen corresponding path program 1 times [2022-11-16 12:37:21,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:21,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128972124] [2022-11-16 12:37:21,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:21,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:22,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:22,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:22,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128972124] [2022-11-16 12:37:22,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128972124] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:37:22,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049868458] [2022-11-16 12:37:22,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:22,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:37:22,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:37:22,106 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:37:22,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:37:22,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:22,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:37:22,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:37:22,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 12:37:22,239 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:37:22,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049868458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:22,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:37:22,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-16 12:37:22,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983457407] [2022-11-16 12:37:22,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:22,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:22,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:22,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:22,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:37:22,242 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 306 [2022-11-16 12:37:22,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 282 transitions, 624 flow. Second operand has 3 states, 3 states have (on average 261.6666666666667) internal successors, (785), 3 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:22,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:22,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 306 [2022-11-16 12:37:22,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:23,214 INFO L130 PetriNetUnfolder]: 212/5195 cut-off events. [2022-11-16 12:37:23,214 INFO L131 PetriNetUnfolder]: For 263/376 co-relation queries the response was YES. [2022-11-16 12:37:23,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5858 conditions, 5195 events. 212/5195 cut-off events. For 263/376 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 58547 event pairs, 50 based on Foata normal form. 5/4645 useless extension candidates. Maximal degree in co-relation 5850. Up to 242 conditions per place. [2022-11-16 12:37:23,273 INFO L137 encePairwiseOnDemand]: 300/306 looper letters, 25 selfloop transitions, 8 changer transitions 0/294 dead transitions. [2022-11-16 12:37:23,273 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 294 transitions, 742 flow [2022-11-16 12:37:23,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:23,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:23,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 805 transitions. [2022-11-16 12:37:23,276 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8769063180827886 [2022-11-16 12:37:23,276 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 805 transitions. [2022-11-16 12:37:23,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 805 transitions. [2022-11-16 12:37:23,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:23,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 805 transitions. [2022-11-16 12:37:23,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:23,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:23,282 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:23,282 INFO L175 Difference]: Start difference. First operand has 284 places, 282 transitions, 624 flow. Second operand 3 states and 805 transitions. [2022-11-16 12:37:23,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 294 transitions, 742 flow [2022-11-16 12:37:23,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 294 transitions, 724 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:37:23,289 INFO L231 Difference]: Finished difference. Result has 286 places, 288 transitions, 680 flow [2022-11-16 12:37:23,289 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=286, PETRI_TRANSITIONS=288} [2022-11-16 12:37:23,290 INFO L288 CegarLoopForPetriNet]: 278 programPoint places, 8 predicate places. [2022-11-16 12:37:23,290 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 288 transitions, 680 flow [2022-11-16 12:37:23,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.6666666666667) internal successors, (785), 3 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:23,291 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:23,291 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:23,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:37:23,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:37:23,497 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 12:37:23,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:23,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1360116330, now seen corresponding path program 1 times [2022-11-16 12:37:23,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:23,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818554283] [2022-11-16 12:37:23,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:23,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:23,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:23,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:23,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818554283] [2022-11-16 12:37:23,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818554283] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:37:23,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986690069] [2022-11-16 12:37:23,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:23,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:37:23,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:37:23,723 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:37:23,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:37:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:23,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:37:23,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:37:23,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:23,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:37:23,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:23,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986690069] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:37:23,948 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:37:23,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 12:37:23,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111023803] [2022-11-16 12:37:23,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:37:23,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:37:23,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:23,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:37:23,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:37:23,953 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 306 [2022-11-16 12:37:23,957 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 288 transitions, 680 flow. Second operand has 10 states, 10 states have (on average 266.3) internal successors, (2663), 10 states have internal predecessors, (2663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:23,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:23,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 306 [2022-11-16 12:37:23,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:24,124 INFO L130 PetriNetUnfolder]: 9/492 cut-off events. [2022-11-16 12:37:24,125 INFO L131 PetriNetUnfolder]: For 8/11 co-relation queries the response was YES. [2022-11-16 12:37:24,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 492 events. 9/492 cut-off events. For 8/11 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2354 event pairs, 2 based on Foata normal form. 2/448 useless extension candidates. Maximal degree in co-relation 536. Up to 12 conditions per place. [2022-11-16 12:37:24,132 INFO L137 encePairwiseOnDemand]: 301/306 looper letters, 9 selfloop transitions, 7 changer transitions 0/234 dead transitions. [2022-11-16 12:37:24,132 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 234 transitions, 538 flow [2022-11-16 12:37:24,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:37:24,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 12:37:24,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2394 transitions. [2022-11-16 12:37:24,138 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.869281045751634 [2022-11-16 12:37:24,139 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2394 transitions. [2022-11-16 12:37:24,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2394 transitions. [2022-11-16 12:37:24,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:24,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2394 transitions. [2022-11-16 12:37:24,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:24,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 306.0) internal successors, (3060), 10 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:24,155 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 306.0) internal successors, (3060), 10 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:24,155 INFO L175 Difference]: Start difference. First operand has 286 places, 288 transitions, 680 flow. Second operand 9 states and 2394 transitions. [2022-11-16 12:37:24,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 234 transitions, 538 flow [2022-11-16 12:37:24,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 234 transitions, 528 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-11-16 12:37:24,162 INFO L231 Difference]: Finished difference. Result has 242 places, 230 transitions, 502 flow [2022-11-16 12:37:24,163 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=502, PETRI_PLACES=242, PETRI_TRANSITIONS=230} [2022-11-16 12:37:24,163 INFO L288 CegarLoopForPetriNet]: 278 programPoint places, -36 predicate places. [2022-11-16 12:37:24,164 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 230 transitions, 502 flow [2022-11-16 12:37:24,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 266.3) internal successors, (2663), 10 states have internal predecessors, (2663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:24,165 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:24,166 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:24,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:37:24,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:37:24,371 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 12:37:24,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:24,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1634686409, now seen corresponding path program 1 times [2022-11-16 12:37:24,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:24,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057197584] [2022-11-16 12:37:24,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:24,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:24,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:24,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:24,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057197584] [2022-11-16 12:37:24,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057197584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:24,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:24,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:24,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381908622] [2022-11-16 12:37:24,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:24,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:24,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:24,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:24,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:24,438 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 306 [2022-11-16 12:37:24,439 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 230 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:24,440 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:24,440 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 306 [2022-11-16 12:37:24,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:25,082 INFO L130 PetriNetUnfolder]: 708/3286 cut-off events. [2022-11-16 12:37:25,082 INFO L131 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2022-11-16 12:37:25,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4897 conditions, 3286 events. 708/3286 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 29100 event pairs, 268 based on Foata normal form. 0/2860 useless extension candidates. Maximal degree in co-relation 4888. Up to 839 conditions per place. [2022-11-16 12:37:25,121 INFO L137 encePairwiseOnDemand]: 274/306 looper letters, 67 selfloop transitions, 24 changer transitions 0/271 dead transitions. [2022-11-16 12:37:25,121 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 271 transitions, 771 flow [2022-11-16 12:37:25,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:25,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:25,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 762 transitions. [2022-11-16 12:37:25,124 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8300653594771242 [2022-11-16 12:37:25,124 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 762 transitions. [2022-11-16 12:37:25,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 762 transitions. [2022-11-16 12:37:25,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:25,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 762 transitions. [2022-11-16 12:37:25,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:25,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:25,129 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:25,129 INFO L175 Difference]: Start difference. First operand has 242 places, 230 transitions, 502 flow. Second operand 3 states and 762 transitions. [2022-11-16 12:37:25,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 271 transitions, 771 flow [2022-11-16 12:37:25,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 271 transitions, 756 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-11-16 12:37:25,135 INFO L231 Difference]: Finished difference. Result has 241 places, 254 transitions, 695 flow [2022-11-16 12:37:25,136 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=695, PETRI_PLACES=241, PETRI_TRANSITIONS=254} [2022-11-16 12:37:25,136 INFO L288 CegarLoopForPetriNet]: 278 programPoint places, -37 predicate places. [2022-11-16 12:37:25,137 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 254 transitions, 695 flow [2022-11-16 12:37:25,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:25,137 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:25,137 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:25,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:37:25,138 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 12:37:25,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:25,138 INFO L85 PathProgramCache]: Analyzing trace with hash -796928859, now seen corresponding path program 1 times [2022-11-16 12:37:25,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:25,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847867658] [2022-11-16 12:37:25,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:25,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:25,156 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:37:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:25,207 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:37:25,207 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:37:25,208 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2022-11-16 12:37:25,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2022-11-16 12:37:25,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2022-11-16 12:37:25,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2022-11-16 12:37:25,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2022-11-16 12:37:25,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2022-11-16 12:37:25,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2022-11-16 12:37:25,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2022-11-16 12:37:25,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2022-11-16 12:37:25,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2022-11-16 12:37:25,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2022-11-16 12:37:25,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2022-11-16 12:37:25,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2022-11-16 12:37:25,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2022-11-16 12:37:25,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2022-11-16 12:37:25,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2022-11-16 12:37:25,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2022-11-16 12:37:25,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2022-11-16 12:37:25,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2022-11-16 12:37:25,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2022-11-16 12:37:25,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2022-11-16 12:37:25,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2022-11-16 12:37:25,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2022-11-16 12:37:25,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2022-11-16 12:37:25,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2022-11-16 12:37:25,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2022-11-16 12:37:25,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2022-11-16 12:37:25,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2022-11-16 12:37:25,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2022-11-16 12:37:25,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2022-11-16 12:37:25,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2022-11-16 12:37:25,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:37:25,214 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:25,214 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-16 12:37:25,214 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-16 12:37:25,277 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 12:37:25,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 369 places, 409 transitions, 848 flow [2022-11-16 12:37:25,429 INFO L130 PetriNetUnfolder]: 71/675 cut-off events. [2022-11-16 12:37:25,429 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-16 12:37:25,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 703 conditions, 675 events. 71/675 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3235 event pairs, 1 based on Foata normal form. 0/557 useless extension candidates. Maximal degree in co-relation 451. Up to 16 conditions per place. [2022-11-16 12:37:25,445 INFO L82 GeneralOperation]: Start removeDead. Operand has 369 places, 409 transitions, 848 flow [2022-11-16 12:37:25,454 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 369 places, 409 transitions, 848 flow [2022-11-16 12:37:25,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:37:25,460 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1a64696c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:37:25,460 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2022-11-16 12:37:25,464 INFO L130 PetriNetUnfolder]: 1/51 cut-off events. [2022-11-16 12:37:25,464 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:37:25,464 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:25,465 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:25,465 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-11-16 12:37:25,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:25,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1505501789, now seen corresponding path program 1 times [2022-11-16 12:37:25,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:25,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382910570] [2022-11-16 12:37:25,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:25,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:25,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:25,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:25,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382910570] [2022-11-16 12:37:25,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382910570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:25,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:25,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:25,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542991910] [2022-11-16 12:37:25,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:25,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:37:25,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:25,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:37:25,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:37:25,499 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 361 out of 409 [2022-11-16 12:37:25,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 409 transitions, 848 flow. Second operand has 2 states, 2 states have (on average 361.5) internal successors, (723), 2 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:25,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:25,500 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 361 of 409 [2022-11-16 12:37:25,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:25,668 INFO L130 PetriNetUnfolder]: 11/611 cut-off events. [2022-11-16 12:37:25,668 INFO L131 PetriNetUnfolder]: For 54/69 co-relation queries the response was YES. [2022-11-16 12:37:25,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 611 events. 11/611 cut-off events. For 54/69 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2762 event pairs, 1 based on Foata normal form. 172/721 useless extension candidates. Maximal degree in co-relation 414. Up to 16 conditions per place. [2022-11-16 12:37:25,685 INFO L137 encePairwiseOnDemand]: 368/409 looper letters, 6 selfloop transitions, 0 changer transitions 0/367 dead transitions. [2022-11-16 12:37:25,685 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 367 transitions, 776 flow [2022-11-16 12:37:25,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:37:25,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 12:37:25,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 769 transitions. [2022-11-16 12:37:25,688 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9400977995110025 [2022-11-16 12:37:25,688 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 769 transitions. [2022-11-16 12:37:25,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 769 transitions. [2022-11-16 12:37:25,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:25,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 769 transitions. [2022-11-16 12:37:25,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 384.5) internal successors, (769), 2 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:25,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:25,693 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:25,693 INFO L175 Difference]: Start difference. First operand has 369 places, 409 transitions, 848 flow. Second operand 2 states and 769 transitions. [2022-11-16 12:37:25,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 367 transitions, 776 flow [2022-11-16 12:37:25,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 367 transitions, 776 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:37:25,701 INFO L231 Difference]: Finished difference. Result has 369 places, 367 transitions, 764 flow [2022-11-16 12:37:25,702 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=764, PETRI_PLACES=369, PETRI_TRANSITIONS=367} [2022-11-16 12:37:25,703 INFO L288 CegarLoopForPetriNet]: 369 programPoint places, 0 predicate places. [2022-11-16 12:37:25,704 INFO L495 AbstractCegarLoop]: Abstraction has has 369 places, 367 transitions, 764 flow [2022-11-16 12:37:25,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 361.5) internal successors, (723), 2 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:25,705 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:25,706 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:25,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:37:25,706 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-11-16 12:37:25,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:25,706 INFO L85 PathProgramCache]: Analyzing trace with hash -617998108, now seen corresponding path program 1 times [2022-11-16 12:37:25,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:25,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949564878] [2022-11-16 12:37:25,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:25,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:25,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:25,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:25,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949564878] [2022-11-16 12:37:25,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949564878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:25,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:25,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:37:25,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081581373] [2022-11-16 12:37:25,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:25,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:25,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:25,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:25,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:25,773 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 409 [2022-11-16 12:37:25,774 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 367 transitions, 764 flow. Second operand has 3 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:25,774 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:25,775 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 409 [2022-11-16 12:37:25,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:25,949 INFO L130 PetriNetUnfolder]: 10/583 cut-off events. [2022-11-16 12:37:25,949 INFO L131 PetriNetUnfolder]: For 67/162 co-relation queries the response was YES. [2022-11-16 12:37:25,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 647 conditions, 583 events. 10/583 cut-off events. For 67/162 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2548 event pairs, 1 based on Foata normal form. 1/526 useless extension candidates. Maximal degree in co-relation 641. Up to 30 conditions per place. [2022-11-16 12:37:25,966 INFO L137 encePairwiseOnDemand]: 406/409 looper letters, 15 selfloop transitions, 2 changer transitions 0/371 dead transitions. [2022-11-16 12:37:25,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 371 transitions, 806 flow [2022-11-16 12:37:25,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:25,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:25,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1080 transitions. [2022-11-16 12:37:25,969 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8801955990220048 [2022-11-16 12:37:25,970 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1080 transitions. [2022-11-16 12:37:25,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1080 transitions. [2022-11-16 12:37:25,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:25,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1080 transitions. [2022-11-16 12:37:25,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 360.0) internal successors, (1080), 3 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:25,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:25,976 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:25,976 INFO L175 Difference]: Start difference. First operand has 369 places, 367 transitions, 764 flow. Second operand 3 states and 1080 transitions. [2022-11-16 12:37:25,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 371 transitions, 806 flow [2022-11-16 12:37:25,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 371 transitions, 806 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:37:25,983 INFO L231 Difference]: Finished difference. Result has 372 places, 368 transitions, 776 flow [2022-11-16 12:37:25,984 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=776, PETRI_PLACES=372, PETRI_TRANSITIONS=368} [2022-11-16 12:37:25,984 INFO L288 CegarLoopForPetriNet]: 369 programPoint places, 3 predicate places. [2022-11-16 12:37:25,985 INFO L495 AbstractCegarLoop]: Abstraction has has 372 places, 368 transitions, 776 flow [2022-11-16 12:37:25,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:25,985 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:25,985 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:25,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:37:25,986 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-11-16 12:37:25,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:25,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1497283063, now seen corresponding path program 1 times [2022-11-16 12:37:25,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:25,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695515786] [2022-11-16 12:37:25,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:25,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:26,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:26,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:26,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695515786] [2022-11-16 12:37:26,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695515786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:26,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:26,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:26,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078484855] [2022-11-16 12:37:26,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:26,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:26,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:26,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:26,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:26,020 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 409 [2022-11-16 12:37:26,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 368 transitions, 776 flow. Second operand has 3 states, 3 states have (on average 350.0) internal successors, (1050), 3 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:26,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:26,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 409 [2022-11-16 12:37:26,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:29,657 INFO L130 PetriNetUnfolder]: 1069/17207 cut-off events. [2022-11-16 12:37:29,657 INFO L131 PetriNetUnfolder]: For 668/1071 co-relation queries the response was YES. [2022-11-16 12:37:29,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18960 conditions, 17207 events. 1069/17207 cut-off events. For 668/1071 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 235377 event pairs, 290 based on Foata normal form. 23/15094 useless extension candidates. Maximal degree in co-relation 18952. Up to 1038 conditions per place. [2022-11-16 12:37:30,060 INFO L137 encePairwiseOnDemand]: 399/409 looper letters, 25 selfloop transitions, 7 changer transitions 0/382 dead transitions. [2022-11-16 12:37:30,061 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 382 transitions, 889 flow [2022-11-16 12:37:30,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:30,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:30,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1082 transitions. [2022-11-16 12:37:30,064 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8818255908720456 [2022-11-16 12:37:30,064 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1082 transitions. [2022-11-16 12:37:30,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1082 transitions. [2022-11-16 12:37:30,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:30,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1082 transitions. [2022-11-16 12:37:30,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 360.6666666666667) internal successors, (1082), 3 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:30,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:30,070 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:30,071 INFO L175 Difference]: Start difference. First operand has 372 places, 368 transitions, 776 flow. Second operand 3 states and 1082 transitions. [2022-11-16 12:37:30,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 382 transitions, 889 flow [2022-11-16 12:37:30,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 382 transitions, 887 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:37:30,078 INFO L231 Difference]: Finished difference. Result has 375 places, 375 transitions, 836 flow [2022-11-16 12:37:30,079 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=836, PETRI_PLACES=375, PETRI_TRANSITIONS=375} [2022-11-16 12:37:30,080 INFO L288 CegarLoopForPetriNet]: 369 programPoint places, 6 predicate places. [2022-11-16 12:37:30,080 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 375 transitions, 836 flow [2022-11-16 12:37:30,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.0) internal successors, (1050), 3 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:30,081 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:30,081 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:30,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:37:30,082 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-11-16 12:37:30,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:30,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1759450693, now seen corresponding path program 1 times [2022-11-16 12:37:30,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:30,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720335366] [2022-11-16 12:37:30,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:30,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:30,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:30,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:30,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720335366] [2022-11-16 12:37:30,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720335366] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:37:30,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205136160] [2022-11-16 12:37:30,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:30,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:37:30,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:37:30,159 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:37:30,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:37:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:30,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:37:30,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:37:30,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 12:37:30,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:37:30,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205136160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:30,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:37:30,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-16 12:37:30,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122056816] [2022-11-16 12:37:30,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:30,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:30,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:30,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:30,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:37:30,301 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 409 [2022-11-16 12:37:30,310 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 375 transitions, 836 flow. Second operand has 3 states, 3 states have (on average 347.6666666666667) internal successors, (1043), 3 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:30,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:30,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 409 [2022-11-16 12:37:30,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:34,757 INFO L130 PetriNetUnfolder]: 1485/27397 cut-off events. [2022-11-16 12:37:34,758 INFO L131 PetriNetUnfolder]: For 1881/3940 co-relation queries the response was YES. [2022-11-16 12:37:35,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31479 conditions, 27397 events. 1485/27397 cut-off events. For 1881/3940 co-relation queries the response was YES. Maximal size of possible extension queue 668. Compared 420085 event pairs, 395 based on Foata normal form. 18/24488 useless extension candidates. Maximal degree in co-relation 31470. Up to 1514 conditions per place. [2022-11-16 12:37:35,166 INFO L137 encePairwiseOnDemand]: 402/409 looper letters, 35 selfloop transitions, 10 changer transitions 0/392 dead transitions. [2022-11-16 12:37:35,166 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 392 transitions, 1002 flow [2022-11-16 12:37:35,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:35,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:35,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1071 transitions. [2022-11-16 12:37:35,169 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8728606356968215 [2022-11-16 12:37:35,169 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1071 transitions. [2022-11-16 12:37:35,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1071 transitions. [2022-11-16 12:37:35,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:35,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1071 transitions. [2022-11-16 12:37:35,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 357.0) internal successors, (1071), 3 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:35,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:35,177 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:35,177 INFO L175 Difference]: Start difference. First operand has 375 places, 375 transitions, 836 flow. Second operand 3 states and 1071 transitions. [2022-11-16 12:37:35,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 392 transitions, 1002 flow [2022-11-16 12:37:35,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 392 transitions, 976 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:37:35,187 INFO L231 Difference]: Finished difference. Result has 377 places, 383 transitions, 908 flow [2022-11-16 12:37:35,188 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=908, PETRI_PLACES=377, PETRI_TRANSITIONS=383} [2022-11-16 12:37:35,189 INFO L288 CegarLoopForPetriNet]: 369 programPoint places, 8 predicate places. [2022-11-16 12:37:35,189 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 383 transitions, 908 flow [2022-11-16 12:37:35,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 347.6666666666667) internal successors, (1043), 3 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:35,190 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:35,190 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:35,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:37:35,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:37:35,396 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-11-16 12:37:35,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:35,397 INFO L85 PathProgramCache]: Analyzing trace with hash 2008789170, now seen corresponding path program 1 times [2022-11-16 12:37:35,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:35,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990129461] [2022-11-16 12:37:35,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:35,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:35,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:35,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:35,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990129461] [2022-11-16 12:37:35,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990129461] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:37:35,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498716781] [2022-11-16 12:37:35,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:35,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:37:35,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:37:35,478 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:37:35,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:37:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:35,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:37:35,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:37:35,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:35,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:37:35,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:35,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498716781] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:37:35,924 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:37:35,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 12:37:35,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558795723] [2022-11-16 12:37:35,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:37:35,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:37:35,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:35,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:37:35,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:37:35,930 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 409 [2022-11-16 12:37:35,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 383 transitions, 908 flow. Second operand has 10 states, 10 states have (on average 355.3) internal successors, (3553), 10 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:35,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:35,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 409 [2022-11-16 12:37:35,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:38,964 INFO L130 PetriNetUnfolder]: 703/17328 cut-off events. [2022-11-16 12:37:38,964 INFO L131 PetriNetUnfolder]: For 1191/1444 co-relation queries the response was YES. [2022-11-16 12:37:39,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19291 conditions, 17328 events. 703/17328 cut-off events. For 1191/1444 co-relation queries the response was YES. Maximal size of possible extension queue 452. Compared 254068 event pairs, 156 based on Foata normal form. 15/15387 useless extension candidates. Maximal degree in co-relation 19281. Up to 682 conditions per place. [2022-11-16 12:37:39,254 INFO L137 encePairwiseOnDemand]: 403/409 looper letters, 16 selfloop transitions, 9 changer transitions 0/393 dead transitions. [2022-11-16 12:37:39,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 393 transitions, 980 flow [2022-11-16 12:37:39,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:37:39,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 12:37:39,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3204 transitions. [2022-11-16 12:37:39,268 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8704156479217604 [2022-11-16 12:37:39,269 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3204 transitions. [2022-11-16 12:37:39,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3204 transitions. [2022-11-16 12:37:39,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:39,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3204 transitions. [2022-11-16 12:37:39,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 356.0) internal successors, (3204), 9 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:39,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 409.0) internal successors, (4090), 10 states have internal predecessors, (4090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:39,298 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 409.0) internal successors, (4090), 10 states have internal predecessors, (4090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:39,299 INFO L175 Difference]: Start difference. First operand has 377 places, 383 transitions, 908 flow. Second operand 9 states and 3204 transitions. [2022-11-16 12:37:39,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 393 transitions, 980 flow [2022-11-16 12:37:39,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 393 transitions, 960 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:37:39,307 INFO L231 Difference]: Finished difference. Result has 386 places, 389 transitions, 938 flow [2022-11-16 12:37:39,308 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=938, PETRI_PLACES=386, PETRI_TRANSITIONS=389} [2022-11-16 12:37:39,309 INFO L288 CegarLoopForPetriNet]: 369 programPoint places, 17 predicate places. [2022-11-16 12:37:39,309 INFO L495 AbstractCegarLoop]: Abstraction has has 386 places, 389 transitions, 938 flow [2022-11-16 12:37:39,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 355.3) internal successors, (3553), 10 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:39,310 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:39,310 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:39,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:37:39,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf988fb-14a9-445a-ba5f-da682efaac0f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:37:39,516 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-11-16 12:37:39,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:39,516 INFO L85 PathProgramCache]: Analyzing trace with hash -571571108, now seen corresponding path program 1 times [2022-11-16 12:37:39,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:39,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113994315] [2022-11-16 12:37:39,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:39,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:39,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:39,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:39,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113994315] [2022-11-16 12:37:39,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113994315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:39,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:39,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:39,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632315514] [2022-11-16 12:37:39,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:39,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:39,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:39,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:39,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:39,723 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 409 [2022-11-16 12:37:39,724 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 389 transitions, 938 flow. Second operand has 3 states, 3 states have (on average 287.0) internal successors, (861), 3 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:39,724 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:39,724 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 409 [2022-11-16 12:37:39,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:38:09,653 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 66#L938-8true, 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 181#L938-8true, 372#true, Black: 759#(< |ULTIMATE.start_main_~i~0#1| 10000), 249#L961-3true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0)]) [2022-11-16 12:38:09,653 INFO L383 tUnfolder$Statistics]: this new event has 144 ancestors and is cut-off event [2022-11-16 12:38:09,653 INFO L386 tUnfolder$Statistics]: existing Event has 144 ancestors and is cut-off event [2022-11-16 12:38:09,653 INFO L386 tUnfolder$Statistics]: existing Event has 144 ancestors and is cut-off event [2022-11-16 12:38:09,653 INFO L386 tUnfolder$Statistics]: existing Event has 144 ancestors and is cut-off event [2022-11-16 12:38:12,194 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, 321#L938-9true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 181#L938-8true, 372#true, Black: 759#(< |ULTIMATE.start_main_~i~0#1| 10000), 249#L961-3true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0)]) [2022-11-16 12:38:12,194 INFO L383 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-11-16 12:38:12,194 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-16 12:38:12,195 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-16 12:38:12,195 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-16 12:38:12,228 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, t_funThread1of3ForFork0InUse, 125#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 181#L938-8true, 372#true, Black: 759#(< |ULTIMATE.start_main_~i~0#1| 10000), 249#L961-3true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0)]) [2022-11-16 12:38:12,228 INFO L383 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-11-16 12:38:12,228 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-16 12:38:12,228 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-16 12:38:12,229 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-16 12:38:12,267 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 66#L938-8true, 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, 78#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, Black: 759#(< |ULTIMATE.start_main_~i~0#1| 10000), 249#L961-3true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0)]) [2022-11-16 12:38:12,267 INFO L383 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-11-16 12:38:12,267 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-16 12:38:12,267 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-16 12:38:12,267 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-16 12:38:12,271 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 66#L938-8true, 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, Black: 759#(< |ULTIMATE.start_main_~i~0#1| 10000), 169#L938-9true, 249#L961-3true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0)]) [2022-11-16 12:38:12,271 INFO L383 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-11-16 12:38:12,271 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-16 12:38:12,271 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-16 12:38:12,271 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-16 12:38:12,274 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 66#L938-8true, 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 181#L938-8true, 372#true, 39#L961-4true, Black: 759#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0)]) [2022-11-16 12:38:12,275 INFO L383 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-11-16 12:38:12,275 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-16 12:38:12,275 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-16 12:38:12,275 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-16 12:38:15,069 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 66#L938-8true, 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, Black: 759#(< |ULTIMATE.start_main_~i~0#1| 10000), 249#L961-3true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0), 222#L942-8true]) [2022-11-16 12:38:15,069 INFO L383 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,069 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,069 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,069 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,152 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, 321#L938-9true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, 78#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, Black: 759#(< |ULTIMATE.start_main_~i~0#1| 10000), 249#L961-3true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0)]) [2022-11-16 12:38:15,153 INFO L383 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,153 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,153 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,153 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,155 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, 321#L938-9true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, Black: 759#(< |ULTIMATE.start_main_~i~0#1| 10000), 169#L938-9true, 249#L961-3true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0)]) [2022-11-16 12:38:15,155 INFO L383 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,156 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,156 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,156 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,158 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, 321#L938-9true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 181#L938-8true, 372#true, 39#L961-4true, Black: 759#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0)]) [2022-11-16 12:38:15,158 INFO L383 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,158 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,158 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,158 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,191 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, t_funThread1of3ForFork0InUse, 125#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, 78#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, Black: 759#(< |ULTIMATE.start_main_~i~0#1| 10000), 249#L961-3true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0)]) [2022-11-16 12:38:15,191 INFO L383 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,192 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,192 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,192 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,194 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, t_funThread1of3ForFork0InUse, 125#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, Black: 759#(< |ULTIMATE.start_main_~i~0#1| 10000), 169#L938-9true, 249#L961-3true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0)]) [2022-11-16 12:38:15,194 INFO L383 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,194 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,194 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,195 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,197 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, t_funThread1of3ForFork0InUse, 125#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 181#L938-8true, 372#true, 39#L961-4true, Black: 759#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0)]) [2022-11-16 12:38:15,197 INFO L383 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,197 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,197 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,197 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,230 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 66#L938-8true, 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, 39#L961-4true, 78#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, Black: 759#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0)]) [2022-11-16 12:38:15,230 INFO L383 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,230 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,230 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,230 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,233 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 66#L938-8true, 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, 39#L961-4true, Black: 759#(< |ULTIMATE.start_main_~i~0#1| 10000), 169#L938-9true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0)]) [2022-11-16 12:38:15,233 INFO L383 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,233 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,233 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-16 12:38:15,233 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event