./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_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_1d1e6a12-3513-48df-9511-0995443d2eda/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1e6a12-3513-48df-9511-0995443d2eda/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_1d1e6a12-3513-48df-9511-0995443d2eda/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1e6a12-3513-48df-9511-0995443d2eda/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1e6a12-3513-48df-9511-0995443d2eda/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_1d1e6a12-3513-48df-9511-0995443d2eda/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 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b --- 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 12:49:15,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:49:15,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:49:15,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:49:15,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:49:15,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:49:15,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:49:15,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:49:15,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:49:15,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:49:15,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:49:15,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:49:15,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:49:15,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:49:15,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:49:15,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:49:15,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:49:15,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:49:15,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:49:15,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:49:15,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:49:15,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:49:15,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:49:15,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:49:15,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:49:15,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:49:15,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:49:15,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:49:15,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:49:15,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:49:15,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:49:15,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:49:15,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:49:15,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:49:15,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:49:15,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:49:15,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:49:15,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:49:15,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:49:15,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:49:15,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:49:15,532 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1e6a12-3513-48df-9511-0995443d2eda/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:49:15,574 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:49:15,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:49:15,575 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:49:15,575 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:49:15,576 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:49:15,577 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:49:15,578 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:49:15,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:49:15,578 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:49:15,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:49:15,580 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:49:15,581 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:49:15,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:49:15,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:49:15,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:49:15,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:49:15,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:49:15,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:49:15,583 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:49:15,583 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:49:15,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:49:15,584 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:49:15,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:49:15,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:49:15,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:49:15,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:49:15,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:49:15,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:49:15,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:49:15,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:49:15,587 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:49:15,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:49:15,588 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:49:15,589 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:49:15,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:49:15,589 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_1d1e6a12-3513-48df-9511-0995443d2eda/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1e6a12-3513-48df-9511-0995443d2eda/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b [2022-11-16 12:49:15,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:49:15,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:49:15,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:49:15,971 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:49:15,972 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:49:15,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1e6a12-3513-48df-9511-0995443d2eda/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i [2022-11-16 12:49:16,045 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1e6a12-3513-48df-9511-0995443d2eda/bin/uautomizer-tPACEb0tL8/data/3872c95ab/d40bdc62c977446ba403656fbcddb1c2/FLAG4bd2fcc00 [2022-11-16 12:49:16,632 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:49:16,633 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1e6a12-3513-48df-9511-0995443d2eda/sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i [2022-11-16 12:49:16,656 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1e6a12-3513-48df-9511-0995443d2eda/bin/uautomizer-tPACEb0tL8/data/3872c95ab/d40bdc62c977446ba403656fbcddb1c2/FLAG4bd2fcc00 [2022-11-16 12:49:16,855 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1e6a12-3513-48df-9511-0995443d2eda/bin/uautomizer-tPACEb0tL8/data/3872c95ab/d40bdc62c977446ba403656fbcddb1c2 [2022-11-16 12:49:16,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:49:16,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:49:16,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:49:16,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:49:16,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:49:16,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:49:16" (1/1) ... [2022-11-16 12:49:16,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27fdbf36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:16, skipping insertion in model container [2022-11-16 12:49:16,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:49:16" (1/1) ... [2022-11-16 12:49:16,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:49:16,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:49:17,616 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_1d1e6a12-3513-48df-9511-0995443d2eda/sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i[47038,47051] [2022-11-16 12:49:17,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:49:17,720 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:49:17,771 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_1d1e6a12-3513-48df-9511-0995443d2eda/sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i[47038,47051] [2022-11-16 12:49:17,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:49:17,872 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:49:17,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:17 WrapperNode [2022-11-16 12:49:17,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:49:17,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:49:17,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:49:17,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:49:17,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:17" (1/1) ... [2022-11-16 12:49:17,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:17" (1/1) ... [2022-11-16 12:49:17,978 INFO L138 Inliner]: procedures = 278, calls = 54, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 310 [2022-11-16 12:49:17,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:49:17,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:49:17,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:49:17,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:49:17,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:17" (1/1) ... [2022-11-16 12:49:17,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:17" (1/1) ... [2022-11-16 12:49:17,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:17" (1/1) ... [2022-11-16 12:49:17,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:17" (1/1) ... [2022-11-16 12:49:18,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:17" (1/1) ... [2022-11-16 12:49:18,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:17" (1/1) ... [2022-11-16 12:49:18,023 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:17" (1/1) ... [2022-11-16 12:49:18,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:17" (1/1) ... [2022-11-16 12:49:18,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:49:18,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:49:18,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:49:18,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:49:18,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:17" (1/1) ... [2022-11-16 12:49:18,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:49:18,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1e6a12-3513-48df-9511-0995443d2eda/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:49:18,088 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1e6a12-3513-48df-9511-0995443d2eda/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:49:18,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1e6a12-3513-48df-9511-0995443d2eda/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:49:18,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:49:18,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:49:18,157 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-16 12:49:18,157 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-16 12:49:18,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:49:18,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:49:18,158 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-16 12:49:18,158 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-16 12:49:18,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:49:18,158 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:49:18,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:49:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:49:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:49:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:49:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:49:18,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:49:18,161 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 12:49:18,327 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:49:18,330 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:49:19,034 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:49:19,045 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:49:19,059 INFO L300 CfgBuilder]: Removed 15 assume(true) statements. [2022-11-16 12:49:19,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:49:19 BoogieIcfgContainer [2022-11-16 12:49:19,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:49:19,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:49:19,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:49:19,068 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:49:19,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:49:16" (1/3) ... [2022-11-16 12:49:19,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c817147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:49:19, skipping insertion in model container [2022-11-16 12:49:19,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:17" (2/3) ... [2022-11-16 12:49:19,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c817147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:49:19, skipping insertion in model container [2022-11-16 12:49:19,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:49:19" (3/3) ... [2022-11-16 12:49:19,071 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_81-list_racing.i [2022-11-16 12:49:19,080 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:49:19,091 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:49:19,091 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-11-16 12:49:19,091 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:49:19,239 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-16 12:49:19,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 327 places, 345 transitions, 712 flow [2022-11-16 12:49:19,572 INFO L130 PetriNetUnfolder]: 52/623 cut-off events. [2022-11-16 12:49:19,573 INFO L131 PetriNetUnfolder]: For 8/16 co-relation queries the response was YES. [2022-11-16 12:49:19,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 623 events. 52/623 cut-off events. For 8/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2797 event pairs, 0 based on Foata normal form. 0/529 useless extension candidates. Maximal degree in co-relation 310. Up to 8 conditions per place. [2022-11-16 12:49:19,591 INFO L82 GeneralOperation]: Start removeDead. Operand has 327 places, 345 transitions, 712 flow [2022-11-16 12:49:19,600 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 327 places, 345 transitions, 712 flow [2022-11-16 12:49:19,610 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:49:19,618 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;@47b49356, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:49:19,618 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-11-16 12:49:19,624 INFO L130 PetriNetUnfolder]: 0/40 cut-off events. [2022-11-16 12:49:19,624 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:49:19,624 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:49:19,625 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] [2022-11-16 12:49:19,625 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 12:49:19,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:19,634 INFO L85 PathProgramCache]: Analyzing trace with hash -466539874, now seen corresponding path program 1 times [2022-11-16 12:49:19,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:19,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448733752] [2022-11-16 12:49:19,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:19,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:19,972 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 12:49:19,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:19,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448733752] [2022-11-16 12:49:19,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448733752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:49:19,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:49:19,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:49:19,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198209572] [2022-11-16 12:49:19,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:49:19,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:49:19,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:20,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:49:20,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:49:20,020 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 345 [2022-11-16 12:49:20,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 345 transitions, 712 flow. Second operand has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 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 12:49:20,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:49:20,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 345 [2022-11-16 12:49:20,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:49:20,478 INFO L130 PetriNetUnfolder]: 49/1160 cut-off events. [2022-11-16 12:49:20,478 INFO L131 PetriNetUnfolder]: For 102/114 co-relation queries the response was YES. [2022-11-16 12:49:20,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1284 conditions, 1160 events. 49/1160 cut-off events. For 102/114 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 6072 event pairs, 24 based on Foata normal form. 92/1128 useless extension candidates. Maximal degree in co-relation 805. Up to 79 conditions per place. [2022-11-16 12:49:20,490 INFO L137 encePairwiseOnDemand]: 326/345 looper letters, 18 selfloop transitions, 2 changer transitions 0/327 dead transitions. [2022-11-16 12:49:20,490 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 327 transitions, 716 flow [2022-11-16 12:49:20,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:49:20,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:49:20,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 958 transitions. [2022-11-16 12:49:20,510 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9256038647342996 [2022-11-16 12:49:20,510 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 958 transitions. [2022-11-16 12:49:20,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 958 transitions. [2022-11-16 12:49:20,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:49:20,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 958 transitions. [2022-11-16 12:49:20,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 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 12:49:20,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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 12:49:20,537 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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 12:49:20,540 INFO L175 Difference]: Start difference. First operand has 327 places, 345 transitions, 712 flow. Second operand 3 states and 958 transitions. [2022-11-16 12:49:20,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 327 transitions, 716 flow [2022-11-16 12:49:20,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 327 transitions, 716 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:49:20,558 INFO L231 Difference]: Finished difference. Result has 327 places, 327 transitions, 680 flow [2022-11-16 12:49:20,561 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=327, PETRI_TRANSITIONS=327} [2022-11-16 12:49:20,566 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, 0 predicate places. [2022-11-16 12:49:20,567 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 327 transitions, 680 flow [2022-11-16 12:49:20,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 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 12:49:20,569 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:49:20,569 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] [2022-11-16 12:49:20,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:49:20,570 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 12:49:20,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:20,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1119957937, now seen corresponding path program 1 times [2022-11-16 12:49:20,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:20,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161480270] [2022-11-16 12:49:20,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:20,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:20,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:20,684 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 12:49:20,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:20,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161480270] [2022-11-16 12:49:20,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161480270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:49:20,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:49:20,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:49:20,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103456274] [2022-11-16 12:49:20,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:49:20,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:49:20,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:20,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:49:20,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:49:20,691 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 345 [2022-11-16 12:49:20,693 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 327 transitions, 680 flow. Second operand has 3 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 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 12:49:20,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:49:20,694 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 345 [2022-11-16 12:49:20,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:49:20,988 INFO L130 PetriNetUnfolder]: 38/1063 cut-off events. [2022-11-16 12:49:20,989 INFO L131 PetriNetUnfolder]: For 86/96 co-relation queries the response was YES. [2022-11-16 12:49:20,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1157 conditions, 1063 events. 38/1063 cut-off events. For 86/96 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 5285 event pairs, 14 based on Foata normal form. 0/964 useless extension candidates. Maximal degree in co-relation 1105. Up to 51 conditions per place. [2022-11-16 12:49:20,999 INFO L137 encePairwiseOnDemand]: 341/345 looper letters, 13 selfloop transitions, 1 changer transitions 0/324 dead transitions. [2022-11-16 12:49:21,000 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 324 transitions, 702 flow [2022-11-16 12:49:21,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:49:21,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:49:21,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 947 transitions. [2022-11-16 12:49:21,003 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.914975845410628 [2022-11-16 12:49:21,004 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 947 transitions. [2022-11-16 12:49:21,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 947 transitions. [2022-11-16 12:49:21,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:49:21,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 947 transitions. [2022-11-16 12:49:21,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.6666666666667) internal successors, (947), 3 states have internal predecessors, (947), 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 12:49:21,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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 12:49:21,011 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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 12:49:21,011 INFO L175 Difference]: Start difference. First operand has 327 places, 327 transitions, 680 flow. Second operand 3 states and 947 transitions. [2022-11-16 12:49:21,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 324 transitions, 702 flow [2022-11-16 12:49:21,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 324 transitions, 698 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:49:21,024 INFO L231 Difference]: Finished difference. Result has 324 places, 324 transitions, 672 flow [2022-11-16 12:49:21,025 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=672, PETRI_PLACES=324, PETRI_TRANSITIONS=324} [2022-11-16 12:49:21,026 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -3 predicate places. [2022-11-16 12:49:21,027 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 324 transitions, 672 flow [2022-11-16 12:49:21,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 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 12:49:21,028 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:49:21,028 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] [2022-11-16 12:49:21,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:49:21,030 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 12:49:21,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:21,032 INFO L85 PathProgramCache]: Analyzing trace with hash 225118343, now seen corresponding path program 1 times [2022-11-16 12:49:21,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:21,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971945964] [2022-11-16 12:49:21,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:21,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:21,663 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 12:49:21,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:21,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971945964] [2022-11-16 12:49:21,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971945964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:49:21,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:49:21,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:49:21,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285272291] [2022-11-16 12:49:21,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:49:21,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:49:21,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:21,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:49:21,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:49:21,672 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 345 [2022-11-16 12:49:21,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 324 transitions, 672 flow. Second operand has 6 states, 6 states have (on average 221.5) internal successors, (1329), 6 states have internal predecessors, (1329), 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 12:49:21,675 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:49:21,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 345 [2022-11-16 12:49:21,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:49:35,384 INFO L130 PetriNetUnfolder]: 34434/75502 cut-off events. [2022-11-16 12:49:35,384 INFO L131 PetriNetUnfolder]: For 555/555 co-relation queries the response was YES. [2022-11-16 12:49:35,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128207 conditions, 75502 events. 34434/75502 cut-off events. For 555/555 co-relation queries the response was YES. Maximal size of possible extension queue 1505. Compared 799764 event pairs, 33402 based on Foata normal form. 0/65269 useless extension candidates. Maximal degree in co-relation 128157. Up to 52452 conditions per place. [2022-11-16 12:49:35,812 INFO L137 encePairwiseOnDemand]: 339/345 looper letters, 102 selfloop transitions, 5 changer transitions 0/323 dead transitions. [2022-11-16 12:49:35,812 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 323 transitions, 884 flow [2022-11-16 12:49:35,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:49:35,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:49:35,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1428 transitions. [2022-11-16 12:49:35,817 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6898550724637681 [2022-11-16 12:49:35,817 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1428 transitions. [2022-11-16 12:49:35,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1428 transitions. [2022-11-16 12:49:35,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:49:35,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1428 transitions. [2022-11-16 12:49:35,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 238.0) internal successors, (1428), 6 states have internal predecessors, (1428), 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 12:49:35,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 345.0) internal successors, (2415), 7 states have internal predecessors, (2415), 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 12:49:35,828 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 345.0) internal successors, (2415), 7 states have internal predecessors, (2415), 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 12:49:35,829 INFO L175 Difference]: Start difference. First operand has 324 places, 324 transitions, 672 flow. Second operand 6 states and 1428 transitions. [2022-11-16 12:49:35,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 323 transitions, 884 flow [2022-11-16 12:49:35,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 323 transitions, 883 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:49:35,850 INFO L231 Difference]: Finished difference. Result has 327 places, 323 transitions, 679 flow [2022-11-16 12:49:35,851 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=679, PETRI_PLACES=327, PETRI_TRANSITIONS=323} [2022-11-16 12:49:35,854 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, 0 predicate places. [2022-11-16 12:49:35,854 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 323 transitions, 679 flow [2022-11-16 12:49:35,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 221.5) internal successors, (1329), 6 states have internal predecessors, (1329), 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 12:49:35,855 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:49:35,855 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, 1, 1, 1, 1] [2022-11-16 12:49:35,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:49:35,856 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 12:49:35,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:35,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1356806741, now seen corresponding path program 1 times [2022-11-16 12:49:35,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:35,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785815837] [2022-11-16 12:49:35,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:35,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:36,263 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 12:49:36,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:36,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785815837] [2022-11-16 12:49:36,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785815837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:49:36,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:49:36,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:49:36,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276004533] [2022-11-16 12:49:36,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:49:36,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:49:36,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:36,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:49:36,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:49:36,268 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 345 [2022-11-16 12:49:36,270 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 323 transitions, 679 flow. Second operand has 6 states, 6 states have (on average 222.5) internal successors, (1335), 6 states have internal predecessors, (1335), 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 12:49:36,270 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:49:36,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 345 [2022-11-16 12:49:36,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:49:48,111 INFO L130 PetriNetUnfolder]: 34434/75501 cut-off events. [2022-11-16 12:49:48,112 INFO L131 PetriNetUnfolder]: For 556/556 co-relation queries the response was YES. [2022-11-16 12:49:48,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128210 conditions, 75501 events. 34434/75501 cut-off events. For 556/556 co-relation queries the response was YES. Maximal size of possible extension queue 1505. Compared 799253 event pairs, 33402 based on Foata normal form. 0/65269 useless extension candidates. Maximal degree in co-relation 128160. Up to 52451 conditions per place. [2022-11-16 12:49:48,469 INFO L137 encePairwiseOnDemand]: 339/345 looper letters, 101 selfloop transitions, 5 changer transitions 0/322 dead transitions. [2022-11-16 12:49:48,469 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 322 transitions, 889 flow [2022-11-16 12:49:48,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:49:48,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:49:48,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1427 transitions. [2022-11-16 12:49:48,474 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6893719806763285 [2022-11-16 12:49:48,475 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1427 transitions. [2022-11-16 12:49:48,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1427 transitions. [2022-11-16 12:49:48,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:49:48,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1427 transitions. [2022-11-16 12:49:48,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 237.83333333333334) internal successors, (1427), 6 states have internal predecessors, (1427), 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 12:49:48,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 345.0) internal successors, (2415), 7 states have internal predecessors, (2415), 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 12:49:48,489 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 345.0) internal successors, (2415), 7 states have internal predecessors, (2415), 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 12:49:48,491 INFO L175 Difference]: Start difference. First operand has 327 places, 323 transitions, 679 flow. Second operand 6 states and 1427 transitions. [2022-11-16 12:49:48,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 322 transitions, 889 flow [2022-11-16 12:49:48,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 322 transitions, 879 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:49:48,510 INFO L231 Difference]: Finished difference. Result has 326 places, 322 transitions, 677 flow [2022-11-16 12:49:48,510 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=677, PETRI_PLACES=326, PETRI_TRANSITIONS=322} [2022-11-16 12:49:48,512 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -1 predicate places. [2022-11-16 12:49:48,512 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 322 transitions, 677 flow [2022-11-16 12:49:48,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 222.5) internal successors, (1335), 6 states have internal predecessors, (1335), 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 12:49:48,513 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:49:48,514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:49:48,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:49:48,514 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 12:49:48,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:48,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1953943700, now seen corresponding path program 1 times [2022-11-16 12:49:48,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:48,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154861091] [2022-11-16 12:49:48,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:48,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:48,633 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 12:49:48,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:48,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154861091] [2022-11-16 12:49:48,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154861091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:49:48,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:49:48,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:49:48,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391687869] [2022-11-16 12:49:48,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:49:48,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:49:48,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:48,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:49:48,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:49:48,639 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 345 [2022-11-16 12:49:48,641 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 322 transitions, 677 flow. Second operand has 3 states, 3 states have (on average 316.0) internal successors, (948), 3 states have internal predecessors, (948), 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 12:49:48,641 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:49:48,641 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 345 [2022-11-16 12:49:48,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:49:48,744 INFO L130 PetriNetUnfolder]: 9/433 cut-off events. [2022-11-16 12:49:48,744 INFO L131 PetriNetUnfolder]: For 41/83 co-relation queries the response was YES. [2022-11-16 12:49:48,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 433 events. 9/433 cut-off events. For 41/83 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1126 event pairs, 0 based on Foata normal form. 2/398 useless extension candidates. Maximal degree in co-relation 426. Up to 15 conditions per place. [2022-11-16 12:49:48,748 INFO L137 encePairwiseOnDemand]: 342/345 looper letters, 13 selfloop transitions, 2 changer transitions 0/324 dead transitions. [2022-11-16 12:49:48,748 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 324 transitions, 711 flow [2022-11-16 12:49:48,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:49:48,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:49:48,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 961 transitions. [2022-11-16 12:49:48,751 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9285024154589372 [2022-11-16 12:49:48,751 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 961 transitions. [2022-11-16 12:49:48,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 961 transitions. [2022-11-16 12:49:48,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:49:48,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 961 transitions. [2022-11-16 12:49:48,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 320.3333333333333) internal successors, (961), 3 states have internal predecessors, (961), 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 12:49:48,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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 12:49:48,757 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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 12:49:48,757 INFO L175 Difference]: Start difference. First operand has 326 places, 322 transitions, 677 flow. Second operand 3 states and 961 transitions. [2022-11-16 12:49:48,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 324 transitions, 711 flow [2022-11-16 12:49:48,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 324 transitions, 701 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:49:48,763 INFO L231 Difference]: Finished difference. Result has 324 places, 322 transitions, 675 flow [2022-11-16 12:49:48,764 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=675, PETRI_PLACES=324, PETRI_TRANSITIONS=322} [2022-11-16 12:49:48,766 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -3 predicate places. [2022-11-16 12:49:48,766 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 322 transitions, 675 flow [2022-11-16 12:49:48,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 316.0) internal successors, (948), 3 states have internal predecessors, (948), 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 12:49:48,767 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:49:48,767 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, 1, 1, 1, 1, 1, 1, 1, 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 12:49:48,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:49:48,768 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 12:49:48,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:48,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1524834920, now seen corresponding path program 1 times [2022-11-16 12:49:48,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:48,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130206939] [2022-11-16 12:49:48,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:48,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:49:48,815 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:49:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:49:48,870 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:49:48,870 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:49:48,871 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2022-11-16 12:49:48,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2022-11-16 12:49:48,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2022-11-16 12:49:48,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr7ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2022-11-16 12:49:48,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2022-11-16 12:49:48,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2022-11-16 12:49:48,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr5ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2022-11-16 12:49:48,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2022-11-16 12:49:48,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr6ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2022-11-16 12:49:48,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2022-11-16 12:49:48,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2022-11-16 12:49:48,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2022-11-16 12:49:48,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2022-11-16 12:49:48,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2022-11-16 12:49:48,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2022-11-16 12:49:48,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 36 remaining) [2022-11-16 12:49:48,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2022-11-16 12:49:48,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2022-11-16 12:49:48,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2022-11-16 12:49:48,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2022-11-16 12:49:48,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2022-11-16 12:49:48,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2022-11-16 12:49:48,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2022-11-16 12:49:48,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2022-11-16 12:49:48,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr7ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2022-11-16 12:49:48,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2022-11-16 12:49:48,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2022-11-16 12:49:48,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr5ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2022-11-16 12:49:48,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2022-11-16 12:49:48,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr6ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2022-11-16 12:49:48,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2022-11-16 12:49:48,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2022-11-16 12:49:48,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2022-11-16 12:49:48,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2022-11-16 12:49:48,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2022-11-16 12:49:48,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2022-11-16 12:49:48,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:49:48,884 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-16 12:49:48,887 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-16 12:49:48,887 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-16 12:49:49,015 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-16 12:49:49,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 521 places, 554 transitions, 1156 flow [2022-11-16 12:49:49,661 INFO L130 PetriNetUnfolder]: 191/1805 cut-off events. [2022-11-16 12:49:49,662 INFO L131 PetriNetUnfolder]: For 72/120 co-relation queries the response was YES. [2022-11-16 12:49:49,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1902 conditions, 1805 events. 191/1805 cut-off events. For 72/120 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 12459 event pairs, 2 based on Foata normal form. 0/1517 useless extension candidates. Maximal degree in co-relation 1122. Up to 32 conditions per place. [2022-11-16 12:49:49,678 INFO L82 GeneralOperation]: Start removeDead. Operand has 521 places, 554 transitions, 1156 flow [2022-11-16 12:49:49,697 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 521 places, 554 transitions, 1156 flow [2022-11-16 12:49:49,698 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:49:49,699 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;@47b49356, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:49:49,699 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2022-11-16 12:49:49,702 INFO L130 PetriNetUnfolder]: 0/40 cut-off events. [2022-11-16 12:49:49,702 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:49:49,703 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:49:49,703 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] [2022-11-16 12:49:49,703 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-16 12:49:49,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:49,703 INFO L85 PathProgramCache]: Analyzing trace with hash 98420934, now seen corresponding path program 1 times [2022-11-16 12:49:49,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:49,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920377285] [2022-11-16 12:49:49,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:49,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,730 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 12:49:49,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:49,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920377285] [2022-11-16 12:49:49,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920377285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:49:49,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:49:49,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:49:49,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8140889] [2022-11-16 12:49:49,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:49:49,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:49:49,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:49,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:49:49,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:49:49,733 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 491 out of 554 [2022-11-16 12:49:49,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 521 places, 554 transitions, 1156 flow. Second operand has 3 states, 3 states have (on average 492.3333333333333) internal successors, (1477), 3 states have internal predecessors, (1477), 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 12:49:49,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:49:49,735 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 491 of 554 [2022-11-16 12:49:49,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:49:56,797 INFO L130 PetriNetUnfolder]: 3136/30409 cut-off events. [2022-11-16 12:49:56,798 INFO L131 PetriNetUnfolder]: For 4595/4955 co-relation queries the response was YES. [2022-11-16 12:49:57,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35905 conditions, 30409 events. 3136/30409 cut-off events. For 4595/4955 co-relation queries the response was YES. Maximal size of possible extension queue 494. Compared 417587 event pairs, 2284 based on Foata normal form. 3470/29981 useless extension candidates. Maximal degree in co-relation 18879. Up to 3939 conditions per place. [2022-11-16 12:49:57,216 INFO L137 encePairwiseOnDemand]: 523/554 looper letters, 30 selfloop transitions, 2 changer transitions 0/523 dead transitions. [2022-11-16 12:49:57,216 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 523 transitions, 1158 flow [2022-11-16 12:49:57,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:49:57,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:49:57,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1534 transitions. [2022-11-16 12:49:57,220 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9229843561973526 [2022-11-16 12:49:57,220 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1534 transitions. [2022-11-16 12:49:57,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1534 transitions. [2022-11-16 12:49:57,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:49:57,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1534 transitions. [2022-11-16 12:49:57,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 511.3333333333333) internal successors, (1534), 3 states have internal predecessors, (1534), 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 12:49:57,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 554.0) internal successors, (2216), 4 states have internal predecessors, (2216), 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 12:49:57,229 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 554.0) internal successors, (2216), 4 states have internal predecessors, (2216), 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 12:49:57,229 INFO L175 Difference]: Start difference. First operand has 521 places, 554 transitions, 1156 flow. Second operand 3 states and 1534 transitions. [2022-11-16 12:49:57,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 523 transitions, 1158 flow [2022-11-16 12:49:57,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 520 places, 523 transitions, 1158 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:49:57,247 INFO L231 Difference]: Finished difference. Result has 520 places, 523 transitions, 1098 flow [2022-11-16 12:49:57,248 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=554, PETRI_DIFFERENCE_MINUEND_FLOW=1094, PETRI_DIFFERENCE_MINUEND_PLACES=518, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=523, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=521, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1098, PETRI_PLACES=520, PETRI_TRANSITIONS=523} [2022-11-16 12:49:57,249 INFO L288 CegarLoopForPetriNet]: 521 programPoint places, -1 predicate places. [2022-11-16 12:49:57,249 INFO L495 AbstractCegarLoop]: Abstraction has has 520 places, 523 transitions, 1098 flow [2022-11-16 12:49:57,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 492.3333333333333) internal successors, (1477), 3 states have internal predecessors, (1477), 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 12:49:57,250 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:49:57,250 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] [2022-11-16 12:49:57,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:49:57,250 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-16 12:49:57,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:57,251 INFO L85 PathProgramCache]: Analyzing trace with hash -559718281, now seen corresponding path program 1 times [2022-11-16 12:49:57,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:57,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708550163] [2022-11-16 12:49:57,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:57,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:57,292 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 12:49:57,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:57,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708550163] [2022-11-16 12:49:57,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708550163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:49:57,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:49:57,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:49:57,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966454028] [2022-11-16 12:49:57,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:49:57,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:49:57,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:57,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:49:57,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:49:57,296 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 494 out of 554 [2022-11-16 12:49:57,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 523 transitions, 1098 flow. Second operand has 3 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 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 12:49:57,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:49:57,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 494 of 554 [2022-11-16 12:49:57,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:50:02,038 INFO L130 PetriNetUnfolder]: 1430/19989 cut-off events. [2022-11-16 12:50:02,038 INFO L131 PetriNetUnfolder]: For 2385/2559 co-relation queries the response was YES. [2022-11-16 12:50:02,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22474 conditions, 19989 events. 1430/19989 cut-off events. For 2385/2559 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 253907 event pairs, 853 based on Foata normal form. 0/18070 useless extension candidates. Maximal degree in co-relation 22420. Up to 1658 conditions per place. [2022-11-16 12:50:02,263 INFO L137 encePairwiseOnDemand]: 548/554 looper letters, 23 selfloop transitions, 1 changer transitions 0/518 dead transitions. [2022-11-16 12:50:02,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 518 transitions, 1136 flow [2022-11-16 12:50:02,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:50:02,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:50:02,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1511 transitions. [2022-11-16 12:50:02,268 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9091456077015644 [2022-11-16 12:50:02,268 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1511 transitions. [2022-11-16 12:50:02,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1511 transitions. [2022-11-16 12:50:02,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:50:02,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1511 transitions. [2022-11-16 12:50:02,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 503.6666666666667) internal successors, (1511), 3 states have internal predecessors, (1511), 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 12:50:02,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 554.0) internal successors, (2216), 4 states have internal predecessors, (2216), 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 12:50:02,278 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 554.0) internal successors, (2216), 4 states have internal predecessors, (2216), 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 12:50:02,278 INFO L175 Difference]: Start difference. First operand has 520 places, 523 transitions, 1098 flow. Second operand 3 states and 1511 transitions. [2022-11-16 12:50:02,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 518 transitions, 1136 flow [2022-11-16 12:50:02,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 518 transitions, 1132 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:50:02,288 INFO L231 Difference]: Finished difference. Result has 515 places, 518 transitions, 1086 flow [2022-11-16 12:50:02,289 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=554, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=513, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=518, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1086, PETRI_PLACES=515, PETRI_TRANSITIONS=518} [2022-11-16 12:50:02,290 INFO L288 CegarLoopForPetriNet]: 521 programPoint places, -6 predicate places. [2022-11-16 12:50:02,290 INFO L495 AbstractCegarLoop]: Abstraction has has 515 places, 518 transitions, 1086 flow [2022-11-16 12:50:02,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 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 12:50:02,291 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:50:02,291 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] [2022-11-16 12:50:02,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:50:02,291 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-16 12:50:02,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:50:02,292 INFO L85 PathProgramCache]: Analyzing trace with hash 658642055, now seen corresponding path program 1 times [2022-11-16 12:50:02,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:50:02,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021720627] [2022-11-16 12:50:02,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:02,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:50:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:02,572 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 12:50:02,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:50:02,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021720627] [2022-11-16 12:50:02,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021720627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:50:02,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:50:02,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:50:02,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697856551] [2022-11-16 12:50:02,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:50:02,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:50:02,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:50:02,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:50:02,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:50:02,577 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 554 [2022-11-16 12:50:02,579 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 518 transitions, 1086 flow. Second operand has 6 states, 6 states have (on average 339.5) internal successors, (2037), 6 states have internal predecessors, (2037), 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 12:50:02,579 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:50:02,579 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 554 [2022-11-16 12:50:02,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand