./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-word-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477019f4-96f9-45dd-a32d-f0dd2fd084eb/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477019f4-96f9-45dd-a32d-f0dd2fd084eb/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477019f4-96f9-45dd-a32d-f0dd2fd084eb/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477019f4-96f9-45dd-a32d-f0dd2fd084eb/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477019f4-96f9-45dd-a32d-f0dd2fd084eb/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477019f4-96f9-45dd-a32d-f0dd2fd084eb/bin/uautomizer-TMbwUNV5ro --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 73462fb8dbdc39f07edabdd79150cbad579fbba379eb033cd2e89802bbb8b9a6 --- 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-8393723 [2022-11-18 20:02:35,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:02:35,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:02:36,017 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:02:36,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:02:36,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:02:36,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:02:36,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:02:36,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:02:36,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:02:36,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:02:36,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:02:36,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:02:36,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:02:36,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:02:36,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:02:36,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:02:36,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:02:36,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:02:36,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:02:36,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:02:36,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:02:36,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:02:36,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:02:36,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:02:36,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:02:36,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:02:36,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:02:36,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:02:36,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:02:36,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:02:36,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:02:36,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:02:36,054 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:02:36,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:02:36,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:02:36,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:02:36,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:02:36,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:02:36,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:02:36,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:02:36,059 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477019f4-96f9-45dd-a32d-f0dd2fd084eb/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:02:36,082 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:02:36,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:02:36,087 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:02:36,087 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:02:36,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:02:36,088 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:02:36,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:02:36,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:02:36,090 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:02:36,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:02:36,090 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:02:36,092 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:02:36,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:02:36,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:02:36,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:02:36,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:02:36,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:02:36,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:02:36,094 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:02:36,094 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:02:36,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:02:36,095 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:02:36,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:02:36,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:02:36,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:02:36,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:02:36,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:02:36,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:02:36,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:02:36,098 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:02:36,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:02:36,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:02:36,099 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:02:36,099 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:02:36,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:02:36,100 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_477019f4-96f9-45dd-a32d-f0dd2fd084eb/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477019f4-96f9-45dd-a32d-f0dd2fd084eb/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73462fb8dbdc39f07edabdd79150cbad579fbba379eb033cd2e89802bbb8b9a6 [2022-11-18 20:02:36,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:02:36,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:02:36,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:02:36,433 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:02:36,433 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:02:36,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477019f4-96f9-45dd-a32d-f0dd2fd084eb/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2022-11-18 20:02:36,519 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477019f4-96f9-45dd-a32d-f0dd2fd084eb/bin/uautomizer-TMbwUNV5ro/data/471fbc7c0/95ff03f525d14cb2aa8425c19fa486bc/FLAG0228725a6 [2022-11-18 20:02:37,059 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:02:37,059 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477019f4-96f9-45dd-a32d-f0dd2fd084eb/sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2022-11-18 20:02:37,069 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477019f4-96f9-45dd-a32d-f0dd2fd084eb/bin/uautomizer-TMbwUNV5ro/data/471fbc7c0/95ff03f525d14cb2aa8425c19fa486bc/FLAG0228725a6 [2022-11-18 20:02:37,384 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477019f4-96f9-45dd-a32d-f0dd2fd084eb/bin/uautomizer-TMbwUNV5ro/data/471fbc7c0/95ff03f525d14cb2aa8425c19fa486bc [2022-11-18 20:02:37,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:02:37,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:02:37,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:02:37,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:02:37,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:02:37,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:02:37" (1/1) ... [2022-11-18 20:02:37,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bc6c10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:37, skipping insertion in model container [2022-11-18 20:02:37,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:02:37" (1/1) ... [2022-11-18 20:02:37,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:02:37,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:02:37,659 WARN L234 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_477019f4-96f9-45dd-a32d-f0dd2fd084eb/sv-benchmarks/c/weaver/chl-word-trans.wvr.c[3292,3305] [2022-11-18 20:02:37,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:02:37,674 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:02:37,719 WARN L234 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_477019f4-96f9-45dd-a32d-f0dd2fd084eb/sv-benchmarks/c/weaver/chl-word-trans.wvr.c[3292,3305] [2022-11-18 20:02:37,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:02:37,738 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:02:37,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:37 WrapperNode [2022-11-18 20:02:37,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:02:37,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:02:37,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:02:37,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:02:37,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:37" (1/1) ... [2022-11-18 20:02:37,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:37" (1/1) ... [2022-11-18 20:02:37,818 INFO L138 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 264 [2022-11-18 20:02:37,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:02:37,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:02:37,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:02:37,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:02:37,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:37" (1/1) ... [2022-11-18 20:02:37,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:37" (1/1) ... [2022-11-18 20:02:37,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:37" (1/1) ... [2022-11-18 20:02:37,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:37" (1/1) ... [2022-11-18 20:02:37,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:37" (1/1) ... [2022-11-18 20:02:37,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:37" (1/1) ... [2022-11-18 20:02:37,866 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:37" (1/1) ... [2022-11-18 20:02:37,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:37" (1/1) ... [2022-11-18 20:02:37,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:02:37,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:02:37,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:02:37,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:02:37,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:37" (1/1) ... [2022-11-18 20:02:37,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:02:37,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477019f4-96f9-45dd-a32d-f0dd2fd084eb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:02:37,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477019f4-96f9-45dd-a32d-f0dd2fd084eb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:02:37,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477019f4-96f9-45dd-a32d-f0dd2fd084eb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:02:37,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:02:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:02:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:02:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:02:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:02:37,999 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:02:37,999 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:02:37,999 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:02:38,000 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:02:38,000 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:02:38,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:02:38,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:02:38,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:02:38,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:02:38,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:02:38,002 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:02:38,212 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:02:38,214 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:02:39,265 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:02:39,282 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:02:39,282 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-18 20:02:39,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:02:39 BoogieIcfgContainer [2022-11-18 20:02:39,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:02:39,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:02:39,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:02:39,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:02:39,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:02:37" (1/3) ... [2022-11-18 20:02:39,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f23293c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:02:39, skipping insertion in model container [2022-11-18 20:02:39,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:37" (2/3) ... [2022-11-18 20:02:39,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f23293c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:02:39, skipping insertion in model container [2022-11-18 20:02:39,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:02:39" (3/3) ... [2022-11-18 20:02:39,296 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-trans.wvr.c [2022-11-18 20:02:39,305 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:02:39,316 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:02:39,316 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2022-11-18 20:02:39,316 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:02:39,529 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:02:39,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 636 places, 659 transitions, 1342 flow [2022-11-18 20:02:40,027 INFO L130 PetriNetUnfolder]: 33/656 cut-off events. [2022-11-18 20:02:40,027 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:02:40,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 656 events. 33/656 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1728 event pairs, 0 based on Foata normal form. 0/545 useless extension candidates. Maximal degree in co-relation 481. Up to 3 conditions per place. [2022-11-18 20:02:40,047 INFO L82 GeneralOperation]: Start removeDead. Operand has 636 places, 659 transitions, 1342 flow [2022-11-18 20:02:40,063 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 611 places, 632 transitions, 1282 flow [2022-11-18 20:02:40,080 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:02:40,090 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;@68aeb95c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:02:40,090 INFO L358 AbstractCegarLoop]: Starting to check reachability of 138 error locations. [2022-11-18 20:02:40,096 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-11-18 20:02:40,096 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:02:40,096 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:40,097 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] [2022-11-18 20:02:40,098 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-18 20:02:40,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:40,104 INFO L85 PathProgramCache]: Analyzing trace with hash -2133847270, now seen corresponding path program 1 times [2022-11-18 20:02:40,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:40,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6075183] [2022-11-18 20:02:40,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:40,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:40,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:40,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:40,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6075183] [2022-11-18 20:02:40,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6075183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:40,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:40,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:40,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63146836] [2022-11-18 20:02:40,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:40,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:40,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:40,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:40,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:40,463 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 659 [2022-11-18 20:02:40,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 611 places, 632 transitions, 1282 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:40,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:40,472 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 659 [2022-11-18 20:02:40,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:41,318 INFO L130 PetriNetUnfolder]: 134/1888 cut-off events. [2022-11-18 20:02:41,318 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2022-11-18 20:02:41,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2081 conditions, 1888 events. 134/1888 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 12641 event pairs, 60 based on Foata normal form. 83/1576 useless extension candidates. Maximal degree in co-relation 1520. Up to 142 conditions per place. [2022-11-18 20:02:41,384 INFO L137 encePairwiseOnDemand]: 644/659 looper letters, 21 selfloop transitions, 2 changer transitions 6/619 dead transitions. [2022-11-18 20:02:41,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 612 places, 619 transitions, 1302 flow [2022-11-18 20:02:41,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:41,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:02:41,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1899 transitions. [2022-11-18 20:02:41,411 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.960546282245827 [2022-11-18 20:02:41,412 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1899 transitions. [2022-11-18 20:02:41,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1899 transitions. [2022-11-18 20:02:41,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:41,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1899 transitions. [2022-11-18 20:02:41,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 633.0) internal successors, (1899), 3 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:41,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:41,443 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:41,445 INFO L175 Difference]: Start difference. First operand has 611 places, 632 transitions, 1282 flow. Second operand 3 states and 1899 transitions. [2022-11-18 20:02:41,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 612 places, 619 transitions, 1302 flow [2022-11-18 20:02:41,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 606 places, 619 transitions, 1290 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 20:02:41,470 INFO L231 Difference]: Finished difference. Result has 606 places, 613 transitions, 1236 flow [2022-11-18 20:02:41,474 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1244, PETRI_DIFFERENCE_MINUEND_PLACES=604, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=617, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1236, PETRI_PLACES=606, PETRI_TRANSITIONS=613} [2022-11-18 20:02:41,479 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -5 predicate places. [2022-11-18 20:02:41,479 INFO L495 AbstractCegarLoop]: Abstraction has has 606 places, 613 transitions, 1236 flow [2022-11-18 20:02:41,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:41,481 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:41,481 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] [2022-11-18 20:02:41,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:02:41,482 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-18 20:02:41,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:41,483 INFO L85 PathProgramCache]: Analyzing trace with hash 429802424, now seen corresponding path program 1 times [2022-11-18 20:02:41,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:41,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694609583] [2022-11-18 20:02:41,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:41,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:41,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:41,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:41,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694609583] [2022-11-18 20:02:41,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694609583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:41,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:41,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:41,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535238302] [2022-11-18 20:02:41,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:41,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:41,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:41,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:41,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:41,586 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 659 [2022-11-18 20:02:41,659 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 613 transitions, 1236 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:41,659 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:41,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 659 [2022-11-18 20:02:41,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:42,514 INFO L130 PetriNetUnfolder]: 222/2276 cut-off events. [2022-11-18 20:02:42,514 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-18 20:02:42,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2595 conditions, 2276 events. 222/2276 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 17576 event pairs, 132 based on Foata normal form. 0/1806 useless extension candidates. Maximal degree in co-relation 2555. Up to 256 conditions per place. [2022-11-18 20:02:42,572 INFO L137 encePairwiseOnDemand]: 656/659 looper letters, 21 selfloop transitions, 2 changer transitions 0/612 dead transitions. [2022-11-18 20:02:42,573 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 601 places, 612 transitions, 1280 flow [2022-11-18 20:02:42,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:42,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:02:42,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1887 transitions. [2022-11-18 20:02:42,579 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9544764795144158 [2022-11-18 20:02:42,579 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1887 transitions. [2022-11-18 20:02:42,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1887 transitions. [2022-11-18 20:02:42,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:42,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1887 transitions. [2022-11-18 20:02:42,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 629.0) internal successors, (1887), 3 states have internal predecessors, (1887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:42,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:42,592 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:42,592 INFO L175 Difference]: Start difference. First operand has 606 places, 613 transitions, 1236 flow. Second operand 3 states and 1887 transitions. [2022-11-18 20:02:42,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 601 places, 612 transitions, 1280 flow [2022-11-18 20:02:42,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 599 places, 612 transitions, 1276 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:02:42,603 INFO L231 Difference]: Finished difference. Result has 599 places, 612 transitions, 1234 flow [2022-11-18 20:02:42,604 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1230, PETRI_DIFFERENCE_MINUEND_PLACES=597, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=612, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=610, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1234, PETRI_PLACES=599, PETRI_TRANSITIONS=612} [2022-11-18 20:02:42,606 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -12 predicate places. [2022-11-18 20:02:42,607 INFO L495 AbstractCegarLoop]: Abstraction has has 599 places, 612 transitions, 1234 flow [2022-11-18 20:02:42,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:42,609 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:42,609 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] [2022-11-18 20:02:42,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:02:42,610 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-18 20:02:42,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:42,610 INFO L85 PathProgramCache]: Analyzing trace with hash 184825244, now seen corresponding path program 1 times [2022-11-18 20:02:42,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:42,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252744730] [2022-11-18 20:02:42,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:42,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:42,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:42,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:42,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:42,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252744730] [2022-11-18 20:02:42,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252744730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:42,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:42,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:42,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341436156] [2022-11-18 20:02:42,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:42,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:42,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:42,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:42,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:42,706 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 659 [2022-11-18 20:02:42,709 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 599 places, 612 transitions, 1234 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:42,709 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:42,709 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 659 [2022-11-18 20:02:42,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:43,487 INFO L130 PetriNetUnfolder]: 236/2539 cut-off events. [2022-11-18 20:02:43,488 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-18 20:02:43,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2804 conditions, 2539 events. 236/2539 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 20244 event pairs, 132 based on Foata normal form. 0/2015 useless extension candidates. Maximal degree in co-relation 2757. Up to 250 conditions per place. [2022-11-18 20:02:43,548 INFO L137 encePairwiseOnDemand]: 656/659 looper letters, 21 selfloop transitions, 2 changer transitions 0/611 dead transitions. [2022-11-18 20:02:43,548 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 600 places, 611 transitions, 1278 flow [2022-11-18 20:02:43,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:43,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:02:43,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1887 transitions. [2022-11-18 20:02:43,554 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9544764795144158 [2022-11-18 20:02:43,555 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1887 transitions. [2022-11-18 20:02:43,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1887 transitions. [2022-11-18 20:02:43,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:43,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1887 transitions. [2022-11-18 20:02:43,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 629.0) internal successors, (1887), 3 states have internal predecessors, (1887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:43,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:43,566 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:43,566 INFO L175 Difference]: Start difference. First operand has 599 places, 612 transitions, 1234 flow. Second operand 3 states and 1887 transitions. [2022-11-18 20:02:43,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 600 places, 611 transitions, 1278 flow [2022-11-18 20:02:43,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 598 places, 611 transitions, 1274 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:02:43,578 INFO L231 Difference]: Finished difference. Result has 598 places, 611 transitions, 1232 flow [2022-11-18 20:02:43,579 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1228, PETRI_DIFFERENCE_MINUEND_PLACES=596, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=611, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=609, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1232, PETRI_PLACES=598, PETRI_TRANSITIONS=611} [2022-11-18 20:02:43,581 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -13 predicate places. [2022-11-18 20:02:43,582 INFO L495 AbstractCegarLoop]: Abstraction has has 598 places, 611 transitions, 1232 flow [2022-11-18 20:02:43,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:43,583 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:43,583 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] [2022-11-18 20:02:43,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:02:43,584 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-18 20:02:43,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:43,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1889146799, now seen corresponding path program 1 times [2022-11-18 20:02:43,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:43,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066646014] [2022-11-18 20:02:43,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:43,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:43,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:43,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:43,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066646014] [2022-11-18 20:02:43,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066646014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:43,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:43,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:43,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821914886] [2022-11-18 20:02:43,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:43,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:43,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:43,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:43,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:43,708 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 659 [2022-11-18 20:02:43,712 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 598 places, 611 transitions, 1232 flow. Second operand has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:43,712 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:43,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 659 [2022-11-18 20:02:43,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:44,418 INFO L130 PetriNetUnfolder]: 134/1809 cut-off events. [2022-11-18 20:02:44,419 INFO L131 PetriNetUnfolder]: For 15/20 co-relation queries the response was YES. [2022-11-18 20:02:44,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1990 conditions, 1809 events. 134/1809 cut-off events. For 15/20 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 11866 event pairs, 60 based on Foata normal form. 0/1458 useless extension candidates. Maximal degree in co-relation 1936. Up to 160 conditions per place. [2022-11-18 20:02:44,483 INFO L137 encePairwiseOnDemand]: 656/659 looper letters, 24 selfloop transitions, 2 changer transitions 0/610 dead transitions. [2022-11-18 20:02:44,484 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 599 places, 610 transitions, 1282 flow [2022-11-18 20:02:44,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:44,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:02:44,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1881 transitions. [2022-11-18 20:02:44,489 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9514415781487102 [2022-11-18 20:02:44,490 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1881 transitions. [2022-11-18 20:02:44,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1881 transitions. [2022-11-18 20:02:44,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:44,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1881 transitions. [2022-11-18 20:02:44,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 627.0) internal successors, (1881), 3 states have internal predecessors, (1881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:44,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:44,504 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:44,504 INFO L175 Difference]: Start difference. First operand has 598 places, 611 transitions, 1232 flow. Second operand 3 states and 1881 transitions. [2022-11-18 20:02:44,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 599 places, 610 transitions, 1282 flow [2022-11-18 20:02:44,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 597 places, 610 transitions, 1278 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:02:44,619 INFO L231 Difference]: Finished difference. Result has 597 places, 610 transitions, 1230 flow [2022-11-18 20:02:44,620 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1226, PETRI_DIFFERENCE_MINUEND_PLACES=595, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=610, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=608, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1230, PETRI_PLACES=597, PETRI_TRANSITIONS=610} [2022-11-18 20:02:44,620 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -14 predicate places. [2022-11-18 20:02:44,621 INFO L495 AbstractCegarLoop]: Abstraction has has 597 places, 610 transitions, 1230 flow [2022-11-18 20:02:44,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:44,622 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:44,626 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:44,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:02:44,627 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-18 20:02:44,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:44,627 INFO L85 PathProgramCache]: Analyzing trace with hash -2039190172, now seen corresponding path program 1 times [2022-11-18 20:02:44,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:44,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198591948] [2022-11-18 20:02:44,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:44,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:44,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:44,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:44,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:44,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198591948] [2022-11-18 20:02:44,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198591948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:44,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:44,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:44,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120572325] [2022-11-18 20:02:44,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:44,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:44,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:44,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:44,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:44,735 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 659 [2022-11-18 20:02:44,738 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 597 places, 610 transitions, 1230 flow. Second operand has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:44,739 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:44,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 659 [2022-11-18 20:02:44,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:45,580 INFO L130 PetriNetUnfolder]: 272/2784 cut-off events. [2022-11-18 20:02:45,580 INFO L131 PetriNetUnfolder]: For 21/30 co-relation queries the response was YES. [2022-11-18 20:02:45,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3150 conditions, 2784 events. 272/2784 cut-off events. For 21/30 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 23337 event pairs, 132 based on Foata normal form. 0/2217 useless extension candidates. Maximal degree in co-relation 3089. Up to 303 conditions per place. [2022-11-18 20:02:45,639 INFO L137 encePairwiseOnDemand]: 656/659 looper letters, 24 selfloop transitions, 2 changer transitions 0/609 dead transitions. [2022-11-18 20:02:45,640 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 598 places, 609 transitions, 1280 flow [2022-11-18 20:02:45,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:45,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:02:45,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1881 transitions. [2022-11-18 20:02:45,644 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9514415781487102 [2022-11-18 20:02:45,644 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1881 transitions. [2022-11-18 20:02:45,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1881 transitions. [2022-11-18 20:02:45,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:45,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1881 transitions. [2022-11-18 20:02:45,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 627.0) internal successors, (1881), 3 states have internal predecessors, (1881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:45,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:45,657 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:45,657 INFO L175 Difference]: Start difference. First operand has 597 places, 610 transitions, 1230 flow. Second operand 3 states and 1881 transitions. [2022-11-18 20:02:45,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 598 places, 609 transitions, 1280 flow [2022-11-18 20:02:45,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 596 places, 609 transitions, 1276 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:02:45,668 INFO L231 Difference]: Finished difference. Result has 596 places, 609 transitions, 1228 flow [2022-11-18 20:02:45,669 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1224, PETRI_DIFFERENCE_MINUEND_PLACES=594, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=607, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1228, PETRI_PLACES=596, PETRI_TRANSITIONS=609} [2022-11-18 20:02:45,672 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -15 predicate places. [2022-11-18 20:02:45,672 INFO L495 AbstractCegarLoop]: Abstraction has has 596 places, 609 transitions, 1228 flow [2022-11-18 20:02:45,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:45,674 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:45,674 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] [2022-11-18 20:02:45,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:02:45,675 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-18 20:02:45,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:45,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1573152436, now seen corresponding path program 1 times [2022-11-18 20:02:45,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:45,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800777636] [2022-11-18 20:02:45,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:45,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:45,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:45,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:45,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800777636] [2022-11-18 20:02:45,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800777636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:45,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:45,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:45,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791035103] [2022-11-18 20:02:45,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:45,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:45,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:45,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:45,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:45,779 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 659 [2022-11-18 20:02:45,781 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 609 transitions, 1228 flow. Second operand has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:45,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:45,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 659 [2022-11-18 20:02:45,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:46,554 INFO L130 PetriNetUnfolder]: 275/2568 cut-off events. [2022-11-18 20:02:46,555 INFO L131 PetriNetUnfolder]: For 71/75 co-relation queries the response was YES. [2022-11-18 20:02:46,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2902 conditions, 2568 events. 275/2568 cut-off events. For 71/75 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 19735 event pairs, 132 based on Foata normal form. 0/2064 useless extension candidates. Maximal degree in co-relation 2834. Up to 319 conditions per place. [2022-11-18 20:02:46,618 INFO L137 encePairwiseOnDemand]: 656/659 looper letters, 24 selfloop transitions, 2 changer transitions 0/608 dead transitions. [2022-11-18 20:02:46,618 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 597 places, 608 transitions, 1278 flow [2022-11-18 20:02:46,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:46,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:02:46,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1881 transitions. [2022-11-18 20:02:46,623 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9514415781487102 [2022-11-18 20:02:46,623 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1881 transitions. [2022-11-18 20:02:46,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1881 transitions. [2022-11-18 20:02:46,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:46,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1881 transitions. [2022-11-18 20:02:46,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 627.0) internal successors, (1881), 3 states have internal predecessors, (1881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:46,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:46,651 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:46,652 INFO L175 Difference]: Start difference. First operand has 596 places, 609 transitions, 1228 flow. Second operand 3 states and 1881 transitions. [2022-11-18 20:02:46,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 597 places, 608 transitions, 1278 flow [2022-11-18 20:02:46,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 595 places, 608 transitions, 1274 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:02:46,663 INFO L231 Difference]: Finished difference. Result has 595 places, 608 transitions, 1226 flow [2022-11-18 20:02:46,665 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1222, PETRI_DIFFERENCE_MINUEND_PLACES=593, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=608, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=606, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1226, PETRI_PLACES=595, PETRI_TRANSITIONS=608} [2022-11-18 20:02:46,667 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -16 predicate places. [2022-11-18 20:02:46,668 INFO L495 AbstractCegarLoop]: Abstraction has has 595 places, 608 transitions, 1226 flow [2022-11-18 20:02:46,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:46,669 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:46,670 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] [2022-11-18 20:02:46,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:02:46,670 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-18 20:02:46,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:46,671 INFO L85 PathProgramCache]: Analyzing trace with hash -2056347585, now seen corresponding path program 1 times [2022-11-18 20:02:46,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:46,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808674211] [2022-11-18 20:02:46,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:46,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:46,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:46,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:46,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808674211] [2022-11-18 20:02:46,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808674211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:46,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:46,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:46,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142077578] [2022-11-18 20:02:46,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:46,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:46,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:46,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:46,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:46,747 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 659 [2022-11-18 20:02:46,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 595 places, 608 transitions, 1226 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:46,750 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:46,750 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 659 [2022-11-18 20:02:46,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:47,217 INFO L130 PetriNetUnfolder]: 96/1578 cut-off events. [2022-11-18 20:02:47,217 INFO L131 PetriNetUnfolder]: For 11/14 co-relation queries the response was YES. [2022-11-18 20:02:47,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1687 conditions, 1578 events. 96/1578 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 9617 event pairs, 32 based on Foata normal form. 0/1305 useless extension candidates. Maximal degree in co-relation 1611. Up to 91 conditions per place. [2022-11-18 20:02:47,253 INFO L137 encePairwiseOnDemand]: 653/659 looper letters, 17 selfloop transitions, 1 changer transitions 0/603 dead transitions. [2022-11-18 20:02:47,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 592 places, 603 transitions, 1252 flow [2022-11-18 20:02:47,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:47,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:02:47,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1886 transitions. [2022-11-18 20:02:47,259 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9539706626201315 [2022-11-18 20:02:47,259 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1886 transitions. [2022-11-18 20:02:47,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1886 transitions. [2022-11-18 20:02:47,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:47,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1886 transitions. [2022-11-18 20:02:47,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 628.6666666666666) internal successors, (1886), 3 states have internal predecessors, (1886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:47,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:47,271 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:47,272 INFO L175 Difference]: Start difference. First operand has 595 places, 608 transitions, 1226 flow. Second operand 3 states and 1886 transitions. [2022-11-18 20:02:47,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 592 places, 603 transitions, 1252 flow [2022-11-18 20:02:47,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 590 places, 603 transitions, 1248 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:02:47,285 INFO L231 Difference]: Finished difference. Result has 590 places, 603 transitions, 1214 flow [2022-11-18 20:02:47,286 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1212, PETRI_DIFFERENCE_MINUEND_PLACES=588, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=603, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=602, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1214, PETRI_PLACES=590, PETRI_TRANSITIONS=603} [2022-11-18 20:02:47,287 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -21 predicate places. [2022-11-18 20:02:47,287 INFO L495 AbstractCegarLoop]: Abstraction has has 590 places, 603 transitions, 1214 flow [2022-11-18 20:02:47,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:47,288 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:47,289 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:47,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:02:47,289 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-18 20:02:47,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:47,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1400651661, now seen corresponding path program 1 times [2022-11-18 20:02:47,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:47,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791374652] [2022-11-18 20:02:47,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:47,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:47,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:47,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:47,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:47,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791374652] [2022-11-18 20:02:47,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791374652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:47,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:47,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:47,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267837075] [2022-11-18 20:02:47,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:47,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:47,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:47,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:47,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:47,416 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 659 [2022-11-18 20:02:47,419 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 603 transitions, 1214 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:47,419 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:47,420 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 659 [2022-11-18 20:02:47,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:48,133 INFO L130 PetriNetUnfolder]: 146/1837 cut-off events. [2022-11-18 20:02:48,133 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-11-18 20:02:48,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2027 conditions, 1837 events. 146/1837 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 11554 event pairs, 60 based on Foata normal form. 0/1501 useless extension candidates. Maximal degree in co-relation 1952. Up to 170 conditions per place. [2022-11-18 20:02:48,203 INFO L137 encePairwiseOnDemand]: 656/659 looper letters, 21 selfloop transitions, 2 changer transitions 0/602 dead transitions. [2022-11-18 20:02:48,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 602 transitions, 1258 flow [2022-11-18 20:02:48,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:48,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:02:48,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1887 transitions. [2022-11-18 20:02:48,209 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9544764795144158 [2022-11-18 20:02:48,209 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1887 transitions. [2022-11-18 20:02:48,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1887 transitions. [2022-11-18 20:02:48,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:48,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1887 transitions. [2022-11-18 20:02:48,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 629.0) internal successors, (1887), 3 states have internal predecessors, (1887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:48,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:48,225 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:48,225 INFO L175 Difference]: Start difference. First operand has 590 places, 603 transitions, 1214 flow. Second operand 3 states and 1887 transitions. [2022-11-18 20:02:48,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 591 places, 602 transitions, 1258 flow [2022-11-18 20:02:48,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 590 places, 602 transitions, 1257 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:02:48,239 INFO L231 Difference]: Finished difference. Result has 590 places, 602 transitions, 1215 flow [2022-11-18 20:02:48,240 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1211, PETRI_DIFFERENCE_MINUEND_PLACES=588, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=600, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1215, PETRI_PLACES=590, PETRI_TRANSITIONS=602} [2022-11-18 20:02:48,242 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -21 predicate places. [2022-11-18 20:02:48,243 INFO L495 AbstractCegarLoop]: Abstraction has has 590 places, 602 transitions, 1215 flow [2022-11-18 20:02:48,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:48,244 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:48,244 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:48,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:02:48,245 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-18 20:02:48,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:48,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1110689988, now seen corresponding path program 1 times [2022-11-18 20:02:48,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:48,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788229743] [2022-11-18 20:02:48,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:48,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:48,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:48,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:48,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788229743] [2022-11-18 20:02:48,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788229743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:48,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:48,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:02:48,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777381687] [2022-11-18 20:02:48,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:48,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:02:48,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:48,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:02:48,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:02:48,916 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 498 out of 659 [2022-11-18 20:02:48,920 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 602 transitions, 1215 flow. Second operand has 6 states, 6 states have (on average 499.8333333333333) internal successors, (2999), 6 states have internal predecessors, (2999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:48,920 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:48,920 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 498 of 659 [2022-11-18 20:02:48,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand