./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/reorder_c11_good-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/reorder_c11_good-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN --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 053c2020ab3922d27be669eca0e75ac8051424727a4d2b2d1ab69540cc43f0a3 --- 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-6b4ec56 [2022-11-20 10:50:34,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:50:34,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:50:34,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:50:34,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:50:34,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:50:34,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:50:34,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:50:34,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:50:34,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:50:34,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:50:34,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:50:34,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:50:34,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:50:34,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:50:34,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:50:34,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:50:34,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:50:34,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:50:34,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:50:34,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:50:34,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:50:34,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:50:35,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:50:35,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:50:35,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:50:35,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:50:35,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:50:35,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:50:35,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:50:35,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:50:35,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:50:35,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:50:35,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:50:35,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:50:35,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:50:35,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:50:35,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:50:35,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:50:35,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:50:35,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:50:35,035 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 10:50:35,090 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:50:35,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:50:35,091 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:50:35,091 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:50:35,093 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:50:35,093 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:50:35,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:50:35,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:50:35,094 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:50:35,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:50:35,096 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:50:35,097 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:50:35,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:50:35,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:50:35,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:50:35,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:50:35,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:50:35,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:50:35,099 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 10:50:35,099 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:50:35,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:50:35,099 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:50:35,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:50:35,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:50:35,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:50:35,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:50:35,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:50:35,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:50:35,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:50:35,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:50:35,103 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:50:35,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:50:35,104 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:50:35,104 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:50:35,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:50:35,105 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_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 053c2020ab3922d27be669eca0e75ac8051424727a4d2b2d1ab69540cc43f0a3 [2022-11-20 10:50:35,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:50:35,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:50:35,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:50:35,526 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:50:35,527 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:50:35,529 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-deagle/reorder_c11_good-10.i [2022-11-20 10:50:39,000 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:50:39,343 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:50:39,347 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/sv-benchmarks/c/pthread-deagle/reorder_c11_good-10.i [2022-11-20 10:50:39,370 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/data/64516335e/b345dc79b0954587a867bc60721d3224/FLAG82bbf60e1 [2022-11-20 10:50:39,393 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/data/64516335e/b345dc79b0954587a867bc60721d3224 [2022-11-20 10:50:39,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:50:39,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:50:39,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:50:39,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:50:39,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:50:39,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:50:39" (1/1) ... [2022-11-20 10:50:39,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bbb9e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:39, skipping insertion in model container [2022-11-20 10:50:39,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:50:39" (1/1) ... [2022-11-20 10:50:39,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:50:39,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:50:40,012 WARN L237 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_4c9c3da3-dba5-4329-ae33-85de97e50835/sv-benchmarks/c/pthread-deagle/reorder_c11_good-10.i[30195,30208] [2022-11-20 10:50:40,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:50:40,062 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:50:40,134 WARN L237 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_4c9c3da3-dba5-4329-ae33-85de97e50835/sv-benchmarks/c/pthread-deagle/reorder_c11_good-10.i[30195,30208] [2022-11-20 10:50:40,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:50:40,203 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:50:40,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:40 WrapperNode [2022-11-20 10:50:40,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:50:40,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:50:40,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:50:40,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:50:40,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:40" (1/1) ... [2022-11-20 10:50:40,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:40" (1/1) ... [2022-11-20 10:50:40,269 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 137 [2022-11-20 10:50:40,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:50:40,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:50:40,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:50:40,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:50:40,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:40" (1/1) ... [2022-11-20 10:50:40,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:40" (1/1) ... [2022-11-20 10:50:40,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:40" (1/1) ... [2022-11-20 10:50:40,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:40" (1/1) ... [2022-11-20 10:50:40,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:40" (1/1) ... [2022-11-20 10:50:40,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:40" (1/1) ... [2022-11-20 10:50:40,343 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:40" (1/1) ... [2022-11-20 10:50:40,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:40" (1/1) ... [2022-11-20 10:50:40,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:50:40,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:50:40,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:50:40,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:50:40,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:40" (1/1) ... [2022-11-20 10:50:40,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:50:40,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:50:40,409 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:50:40,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:50:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:50:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-11-20 10:50:40,475 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-11-20 10:50:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:50:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 10:50:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:50:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:50:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:50:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-11-20 10:50:40,477 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-11-20 10:50:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:50:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 10:50:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:50:40,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:50:40,480 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:50:40,737 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:50:40,751 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:50:41,164 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:50:41,201 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:50:41,201 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-20 10:50:41,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:41 BoogieIcfgContainer [2022-11-20 10:50:41,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:50:41,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:50:41,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:50:41,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:50:41,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:50:39" (1/3) ... [2022-11-20 10:50:41,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@137ae51b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:50:41, skipping insertion in model container [2022-11-20 10:50:41,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:40" (2/3) ... [2022-11-20 10:50:41,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@137ae51b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:50:41, skipping insertion in model container [2022-11-20 10:50:41,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:41" (3/3) ... [2022-11-20 10:50:41,217 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_c11_good-10.i [2022-11-20 10:50:41,229 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:50:41,243 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:50:41,243 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-20 10:50:41,243 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:50:41,384 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-20 10:50:41,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 202 places, 209 transitions, 440 flow [2022-11-20 10:50:41,626 INFO L130 PetriNetUnfolder]: 30/519 cut-off events. [2022-11-20 10:50:41,626 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-20 10:50:41,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 519 events. 30/519 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2097 event pairs, 0 based on Foata normal form. 0/408 useless extension candidates. Maximal degree in co-relation 246. Up to 8 conditions per place. [2022-11-20 10:50:41,646 INFO L82 GeneralOperation]: Start removeDead. Operand has 202 places, 209 transitions, 440 flow [2022-11-20 10:50:41,661 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 202 places, 209 transitions, 440 flow [2022-11-20 10:50:41,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:50:41,692 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;@19f1967d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:50:41,693 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-11-20 10:50:41,701 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-20 10:50:41,702 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:50:41,702 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:41,703 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:41,704 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 10:50:41,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:41,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1256747734, now seen corresponding path program 1 times [2022-11-20 10:50:41,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:41,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097526291] [2022-11-20 10:50:41,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:41,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:42,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:42,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:42,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097526291] [2022-11-20 10:50:42,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097526291] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:42,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:42,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:50:42,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997516279] [2022-11-20 10:50:42,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:42,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:50:42,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:42,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:50:42,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:50:42,150 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 209 [2022-11-20 10:50:42,159 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 209 transitions, 440 flow. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:42,159 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:42,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 209 [2022-11-20 10:50:42,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:42,769 INFO L130 PetriNetUnfolder]: 192/1100 cut-off events. [2022-11-20 10:50:42,769 INFO L131 PetriNetUnfolder]: For 41/41 co-relation queries the response was YES. [2022-11-20 10:50:42,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1655 conditions, 1100 events. 192/1100 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6050 event pairs, 168 based on Foata normal form. 126/1044 useless extension candidates. Maximal degree in co-relation 1271. Up to 521 conditions per place. [2022-11-20 10:50:42,791 INFO L137 encePairwiseOnDemand]: 199/209 looper letters, 68 selfloop transitions, 2 changer transitions 0/196 dead transitions. [2022-11-20 10:50:42,791 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 196 transitions, 554 flow [2022-11-20 10:50:42,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:50:42,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:50:42,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 465 transitions. [2022-11-20 10:50:42,817 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7416267942583732 [2022-11-20 10:50:42,818 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 465 transitions. [2022-11-20 10:50:42,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 465 transitions. [2022-11-20 10:50:42,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:42,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 465 transitions. [2022-11-20 10:50:42,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:42,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:42,842 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:42,845 INFO L175 Difference]: Start difference. First operand has 202 places, 209 transitions, 440 flow. Second operand 3 states and 465 transitions. [2022-11-20 10:50:42,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 196 transitions, 554 flow [2022-11-20 10:50:42,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 196 transitions, 554 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:50:42,857 INFO L231 Difference]: Finished difference. Result has 196 places, 196 transitions, 418 flow [2022-11-20 10:50:42,860 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=418, PETRI_PLACES=196, PETRI_TRANSITIONS=196} [2022-11-20 10:50:42,868 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -6 predicate places. [2022-11-20 10:50:42,869 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 196 transitions, 418 flow [2022-11-20 10:50:42,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:42,870 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:42,870 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] [2022-11-20 10:50:42,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:50:42,872 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 10:50:42,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:42,874 INFO L85 PathProgramCache]: Analyzing trace with hash 542244653, now seen corresponding path program 1 times [2022-11-20 10:50:42,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:42,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140765301] [2022-11-20 10:50:42,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:42,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:43,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:43,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:43,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140765301] [2022-11-20 10:50:43,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140765301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:43,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:43,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:50:43,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658745500] [2022-11-20 10:50:43,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:43,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:50:43,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:43,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:50:43,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:50:43,042 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 209 [2022-11-20 10:50:43,043 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 196 transitions, 418 flow. Second operand has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:43,043 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:43,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 209 [2022-11-20 10:50:43,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:43,389 INFO L130 PetriNetUnfolder]: 156/991 cut-off events. [2022-11-20 10:50:43,390 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-11-20 10:50:43,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1437 conditions, 991 events. 156/991 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5305 event pairs, 78 based on Foata normal form. 0/882 useless extension candidates. Maximal degree in co-relation 1402. Up to 243 conditions per place. [2022-11-20 10:50:43,404 INFO L137 encePairwiseOnDemand]: 186/209 looper letters, 46 selfloop transitions, 11 changer transitions 0/186 dead transitions. [2022-11-20 10:50:43,405 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 186 transitions, 512 flow [2022-11-20 10:50:43,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:50:43,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:50:43,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 465 transitions. [2022-11-20 10:50:43,407 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7416267942583732 [2022-11-20 10:50:43,408 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 465 transitions. [2022-11-20 10:50:43,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 465 transitions. [2022-11-20 10:50:43,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:43,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 465 transitions. [2022-11-20 10:50:43,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:43,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:43,415 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:43,416 INFO L175 Difference]: Start difference. First operand has 196 places, 196 transitions, 418 flow. Second operand 3 states and 465 transitions. [2022-11-20 10:50:43,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 186 transitions, 512 flow [2022-11-20 10:50:43,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 186 transitions, 508 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:50:43,427 INFO L231 Difference]: Finished difference. Result has 184 places, 184 transitions, 412 flow [2022-11-20 10:50:43,428 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=412, PETRI_PLACES=184, PETRI_TRANSITIONS=184} [2022-11-20 10:50:43,429 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -18 predicate places. [2022-11-20 10:50:43,429 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 184 transitions, 412 flow [2022-11-20 10:50:43,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:43,431 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:43,431 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] [2022-11-20 10:50:43,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:50:43,433 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 10:50:43,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:43,434 INFO L85 PathProgramCache]: Analyzing trace with hash -244278961, now seen corresponding path program 1 times [2022-11-20 10:50:43,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:43,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966948937] [2022-11-20 10:50:43,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:43,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:43,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:43,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:43,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966948937] [2022-11-20 10:50:43,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966948937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:43,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:43,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:50:43,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331009833] [2022-11-20 10:50:43,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:43,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:50:43,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:43,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:50:43,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:50:43,607 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 209 [2022-11-20 10:50:43,610 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 184 transitions, 412 flow. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:43,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:43,611 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 209 [2022-11-20 10:50:43,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:43,929 INFO L130 PetriNetUnfolder]: 99/692 cut-off events. [2022-11-20 10:50:43,930 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-20 10:50:43,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1049 conditions, 692 events. 99/692 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2486 event pairs, 52 based on Foata normal form. 0/620 useless extension candidates. Maximal degree in co-relation 804. Up to 160 conditions per place. [2022-11-20 10:50:43,937 INFO L137 encePairwiseOnDemand]: 197/209 looper letters, 61 selfloop transitions, 8 changer transitions 9/210 dead transitions. [2022-11-20 10:50:43,937 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 210 transitions, 612 flow [2022-11-20 10:50:43,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:50:43,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:50:43,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 540 transitions. [2022-11-20 10:50:43,942 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.861244019138756 [2022-11-20 10:50:43,944 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 540 transitions. [2022-11-20 10:50:43,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 540 transitions. [2022-11-20 10:50:43,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:43,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 540 transitions. [2022-11-20 10:50:43,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:43,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:43,951 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:43,951 INFO L175 Difference]: Start difference. First operand has 184 places, 184 transitions, 412 flow. Second operand 3 states and 540 transitions. [2022-11-20 10:50:43,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 210 transitions, 612 flow [2022-11-20 10:50:43,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 210 transitions, 590 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:50:43,961 INFO L231 Difference]: Finished difference. Result has 185 places, 177 transitions, 408 flow [2022-11-20 10:50:43,962 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=185, PETRI_TRANSITIONS=177} [2022-11-20 10:50:43,965 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -17 predicate places. [2022-11-20 10:50:43,966 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 177 transitions, 408 flow [2022-11-20 10:50:43,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:43,966 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:43,967 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:43,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:50:43,969 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 10:50:43,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:43,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1964509480, now seen corresponding path program 1 times [2022-11-20 10:50:43,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:43,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946943674] [2022-11-20 10:50:43,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:43,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:44,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:44,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:44,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946943674] [2022-11-20 10:50:44,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946943674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:44,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:44,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:50:44,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582739671] [2022-11-20 10:50:44,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:44,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:50:44,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:44,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:50:44,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:50:44,104 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 209 [2022-11-20 10:50:44,105 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 177 transitions, 408 flow. Second operand has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:44,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:44,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 209 [2022-11-20 10:50:44,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:44,354 INFO L130 PetriNetUnfolder]: 113/699 cut-off events. [2022-11-20 10:50:44,354 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-11-20 10:50:44,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1084 conditions, 699 events. 113/699 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2496 event pairs, 99 based on Foata normal form. 0/644 useless extension candidates. Maximal degree in co-relation 854. Up to 302 conditions per place. [2022-11-20 10:50:44,361 INFO L137 encePairwiseOnDemand]: 206/209 looper letters, 57 selfloop transitions, 2 changer transitions 0/178 dead transitions. [2022-11-20 10:50:44,362 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 178 transitions, 528 flow [2022-11-20 10:50:44,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:50:44,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:50:44,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 447 transitions. [2022-11-20 10:50:44,364 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7129186602870813 [2022-11-20 10:50:44,365 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 447 transitions. [2022-11-20 10:50:44,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 447 transitions. [2022-11-20 10:50:44,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:44,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 447 transitions. [2022-11-20 10:50:44,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:44,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:44,377 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:44,377 INFO L175 Difference]: Start difference. First operand has 185 places, 177 transitions, 408 flow. Second operand 3 states and 447 transitions. [2022-11-20 10:50:44,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 178 transitions, 528 flow [2022-11-20 10:50:44,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 178 transitions, 520 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:50:44,384 INFO L231 Difference]: Finished difference. Result has 177 places, 176 transitions, 402 flow [2022-11-20 10:50:44,384 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=177, PETRI_TRANSITIONS=176} [2022-11-20 10:50:44,385 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -25 predicate places. [2022-11-20 10:50:44,386 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 176 transitions, 402 flow [2022-11-20 10:50:44,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:44,387 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:44,387 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:44,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:50:44,387 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 10:50:44,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:44,388 INFO L85 PathProgramCache]: Analyzing trace with hash -90039509, now seen corresponding path program 1 times [2022-11-20 10:50:44,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:44,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338202661] [2022-11-20 10:50:44,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:44,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:44,524 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:44,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:44,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338202661] [2022-11-20 10:50:44,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338202661] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:50:44,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430535633] [2022-11-20 10:50:44,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:44,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:50:44,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:50:44,535 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:50:44,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:50:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:44,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:50:44,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:50:44,715 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 10:50:44,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:50:44,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430535633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:44,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:50:44,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-20 10:50:44,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240646739] [2022-11-20 10:50:44,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:44,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:50:44,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:44,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:50:44,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:50:44,722 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 209 [2022-11-20 10:50:44,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 176 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:44,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:44,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 209 [2022-11-20 10:50:44,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:44,999 INFO L130 PetriNetUnfolder]: 111/694 cut-off events. [2022-11-20 10:50:44,999 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-11-20 10:50:45,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1069 conditions, 694 events. 111/694 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2464 event pairs, 97 based on Foata normal form. 0/642 useless extension candidates. Maximal degree in co-relation 841. Up to 297 conditions per place. [2022-11-20 10:50:45,007 INFO L137 encePairwiseOnDemand]: 206/209 looper letters, 56 selfloop transitions, 2 changer transitions 0/177 dead transitions. [2022-11-20 10:50:45,007 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 177 transitions, 520 flow [2022-11-20 10:50:45,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:50:45,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:50:45,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2022-11-20 10:50:45,010 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7113237639553429 [2022-11-20 10:50:45,010 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2022-11-20 10:50:45,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2022-11-20 10:50:45,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:45,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2022-11-20 10:50:45,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:45,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:45,016 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:45,016 INFO L175 Difference]: Start difference. First operand has 177 places, 176 transitions, 402 flow. Second operand 3 states and 446 transitions. [2022-11-20 10:50:45,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 177 transitions, 520 flow [2022-11-20 10:50:45,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 177 transitions, 516 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:50:45,022 INFO L231 Difference]: Finished difference. Result has 176 places, 175 transitions, 400 flow [2022-11-20 10:50:45,023 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=400, PETRI_PLACES=176, PETRI_TRANSITIONS=175} [2022-11-20 10:50:45,024 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -26 predicate places. [2022-11-20 10:50:45,024 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 175 transitions, 400 flow [2022-11-20 10:50:45,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:45,025 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:45,025 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:45,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:50:45,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:50:45,232 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 10:50:45,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:45,233 INFO L85 PathProgramCache]: Analyzing trace with hash -182646682, now seen corresponding path program 1 times [2022-11-20 10:50:45,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:45,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696960401] [2022-11-20 10:50:45,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:45,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:50:45,282 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:50:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:50:45,342 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:50:45,342 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 10:50:45,343 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2022-11-20 10:50:45,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2022-11-20 10:50:45,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2022-11-20 10:50:45,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2022-11-20 10:50:45,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2022-11-20 10:50:45,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2022-11-20 10:50:45,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2022-11-20 10:50:45,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2022-11-20 10:50:45,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2022-11-20 10:50:45,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2022-11-20 10:50:45,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2022-11-20 10:50:45,350 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2022-11-20 10:50:45,350 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2022-11-20 10:50:45,350 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2022-11-20 10:50:45,351 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2022-11-20 10:50:45,351 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2022-11-20 10:50:45,352 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2022-11-20 10:50:45,352 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2022-11-20 10:50:45,352 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2022-11-20 10:50:45,353 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2022-11-20 10:50:45,353 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2022-11-20 10:50:45,353 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2022-11-20 10:50:45,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2022-11-20 10:50:45,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2022-11-20 10:50:45,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2022-11-20 10:50:45,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2022-11-20 10:50:45,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2022-11-20 10:50:45,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2022-11-20 10:50:45,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2022-11-20 10:50:45,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 36 remaining) [2022-11-20 10:50:45,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2022-11-20 10:50:45,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2022-11-20 10:50:45,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2022-11-20 10:50:45,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2022-11-20 10:50:45,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2022-11-20 10:50:45,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2022-11-20 10:50:45,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:50:45,359 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-20 10:50:45,362 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 10:50:45,363 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-20 10:50:45,434 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-20 10:50:45,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 258 transitions, 564 flow [2022-11-20 10:50:45,812 INFO L130 PetriNetUnfolder]: 125/1733 cut-off events. [2022-11-20 10:50:45,812 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-20 10:50:45,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1830 conditions, 1733 events. 125/1733 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 10243 event pairs, 2 based on Foata normal form. 0/1368 useless extension candidates. Maximal degree in co-relation 976. Up to 32 conditions per place. [2022-11-20 10:50:45,833 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 258 transitions, 564 flow [2022-11-20 10:50:45,853 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 247 places, 258 transitions, 564 flow [2022-11-20 10:50:45,854 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:50:45,859 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;@19f1967d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:50:45,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2022-11-20 10:50:45,862 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-20 10:50:45,863 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:50:45,863 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:45,863 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] [2022-11-20 10:50:45,864 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-20 10:50:45,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:45,865 INFO L85 PathProgramCache]: Analyzing trace with hash -769199146, now seen corresponding path program 1 times [2022-11-20 10:50:45,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:45,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242326937] [2022-11-20 10:50:45,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:45,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:45,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:45,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:45,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242326937] [2022-11-20 10:50:45,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242326937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:45,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:45,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:50:45,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687726009] [2022-11-20 10:50:45,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:45,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:50:45,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:45,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:50:45,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:50:45,907 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 258 [2022-11-20 10:50:45,908 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 258 transitions, 564 flow. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:45,908 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:45,909 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 258 [2022-11-20 10:50:45,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:48,446 INFO L130 PetriNetUnfolder]: 2687/8480 cut-off events. [2022-11-20 10:50:48,446 INFO L131 PetriNetUnfolder]: For 648/684 co-relation queries the response was YES. [2022-11-20 10:50:48,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13827 conditions, 8480 events. 2687/8480 cut-off events. For 648/684 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 67449 event pairs, 2481 based on Foata normal form. 2138/9446 useless extension candidates. Maximal degree in co-relation 7264. Up to 5052 conditions per place. [2022-11-20 10:50:48,617 INFO L137 encePairwiseOnDemand]: 245/258 looper letters, 76 selfloop transitions, 2 changer transitions 0/237 dead transitions. [2022-11-20 10:50:48,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 237 transitions, 678 flow [2022-11-20 10:50:48,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:50:48,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:50:48,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 584 transitions. [2022-11-20 10:50:48,620 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7545219638242894 [2022-11-20 10:50:48,620 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 584 transitions. [2022-11-20 10:50:48,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 584 transitions. [2022-11-20 10:50:48,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:48,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 584 transitions. [2022-11-20 10:50:48,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.66666666666666) internal successors, (584), 3 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:48,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:48,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:48,627 INFO L175 Difference]: Start difference. First operand has 247 places, 258 transitions, 564 flow. Second operand 3 states and 584 transitions. [2022-11-20 10:50:48,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 237 transitions, 678 flow [2022-11-20 10:50:48,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 237 transitions, 678 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:50:48,637 INFO L231 Difference]: Finished difference. Result has 234 places, 237 transitions, 526 flow [2022-11-20 10:50:48,638 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=526, PETRI_PLACES=234, PETRI_TRANSITIONS=237} [2022-11-20 10:50:48,640 INFO L288 CegarLoopForPetriNet]: 247 programPoint places, -13 predicate places. [2022-11-20 10:50:48,642 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 237 transitions, 526 flow [2022-11-20 10:50:48,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:48,644 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:48,645 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] [2022-11-20 10:50:48,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:50:48,645 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-20 10:50:48,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:48,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1560559827, now seen corresponding path program 1 times [2022-11-20 10:50:48,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:48,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471461008] [2022-11-20 10:50:48,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:48,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:48,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:48,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:48,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471461008] [2022-11-20 10:50:48,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471461008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:48,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:48,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:50:48,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493117145] [2022-11-20 10:50:48,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:48,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:50:48,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:48,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:50:48,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:50:48,707 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 258 [2022-11-20 10:50:48,708 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 237 transitions, 526 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:48,708 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:48,708 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 258 [2022-11-20 10:50:48,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:50,668 INFO L130 PetriNetUnfolder]: 2173/7194 cut-off events. [2022-11-20 10:50:50,668 INFO L131 PetriNetUnfolder]: For 649/685 co-relation queries the response was YES. [2022-11-20 10:50:50,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11495 conditions, 7194 events. 2173/7194 cut-off events. For 649/685 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 55833 event pairs, 1169 based on Foata normal form. 0/6530 useless extension candidates. Maximal degree in co-relation 11458. Up to 2412 conditions per place. [2022-11-20 10:50:50,902 INFO L137 encePairwiseOnDemand]: 235/258 looper letters, 56 selfloop transitions, 11 changer transitions 0/229 dead transitions. [2022-11-20 10:50:50,903 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 229 transitions, 644 flow [2022-11-20 10:50:50,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:50:50,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:50:50,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 583 transitions. [2022-11-20 10:50:50,906 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7532299741602068 [2022-11-20 10:50:50,906 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 583 transitions. [2022-11-20 10:50:50,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 583 transitions. [2022-11-20 10:50:50,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:50,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 583 transitions. [2022-11-20 10:50:50,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:50,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:50,912 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:50,912 INFO L175 Difference]: Start difference. First operand has 234 places, 237 transitions, 526 flow. Second operand 3 states and 583 transitions. [2022-11-20 10:50:50,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 229 transitions, 644 flow [2022-11-20 10:50:50,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 229 transitions, 640 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:50:50,919 INFO L231 Difference]: Finished difference. Result has 222 places, 225 transitions, 520 flow [2022-11-20 10:50:50,920 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=520, PETRI_PLACES=222, PETRI_TRANSITIONS=225} [2022-11-20 10:50:50,922 INFO L288 CegarLoopForPetriNet]: 247 programPoint places, -25 predicate places. [2022-11-20 10:50:50,923 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 225 transitions, 520 flow [2022-11-20 10:50:50,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:50,923 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:50,923 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] [2022-11-20 10:50:50,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:50:50,924 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-20 10:50:50,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:50,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1634638415, now seen corresponding path program 1 times [2022-11-20 10:50:50,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:50,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738498680] [2022-11-20 10:50:50,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:50,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:50,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:50,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:50,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738498680] [2022-11-20 10:50:50,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738498680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:50,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:50,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:50:50,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193882698] [2022-11-20 10:50:50,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:50,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:50:50,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:50,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:50:50,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:50:50,987 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 258 [2022-11-20 10:50:50,988 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 225 transitions, 520 flow. Second operand has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:50,988 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:50,988 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 258 [2022-11-20 10:50:50,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:52,863 INFO L130 PetriNetUnfolder]: 2174/7774 cut-off events. [2022-11-20 10:50:52,863 INFO L131 PetriNetUnfolder]: For 258/258 co-relation queries the response was YES. [2022-11-20 10:50:52,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12708 conditions, 7774 events. 2174/7774 cut-off events. For 258/258 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 61514 event pairs, 994 based on Foata normal form. 0/7098 useless extension candidates. Maximal degree in co-relation 5418. Up to 2249 conditions per place. [2022-11-20 10:50:52,956 INFO L137 encePairwiseOnDemand]: 246/258 looper letters, 85 selfloop transitions, 8 changer transitions 0/265 dead transitions. [2022-11-20 10:50:52,957 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 265 transitions, 810 flow [2022-11-20 10:50:52,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:50:52,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:50:52,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 670 transitions. [2022-11-20 10:50:52,960 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8656330749354005 [2022-11-20 10:50:52,960 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 670 transitions. [2022-11-20 10:50:52,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 670 transitions. [2022-11-20 10:50:52,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:52,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 670 transitions. [2022-11-20 10:50:52,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:52,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:52,966 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:52,966 INFO L175 Difference]: Start difference. First operand has 222 places, 225 transitions, 520 flow. Second operand 3 states and 670 transitions. [2022-11-20 10:50:52,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 265 transitions, 810 flow [2022-11-20 10:50:52,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 265 transitions, 788 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:50:52,976 INFO L231 Difference]: Finished difference. Result has 223 places, 229 transitions, 546 flow [2022-11-20 10:50:52,977 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=546, PETRI_PLACES=223, PETRI_TRANSITIONS=229} [2022-11-20 10:50:52,978 INFO L288 CegarLoopForPetriNet]: 247 programPoint places, -24 predicate places. [2022-11-20 10:50:52,978 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 229 transitions, 546 flow [2022-11-20 10:50:52,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:52,979 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:52,979 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:52,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:50:52,979 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-20 10:50:52,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:52,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1907935581, now seen corresponding path program 1 times [2022-11-20 10:50:52,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:52,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674349770] [2022-11-20 10:50:52,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:52,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:53,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:53,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:53,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674349770] [2022-11-20 10:50:53,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674349770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:53,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:53,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:50:53,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129492909] [2022-11-20 10:50:53,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:53,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:50:53,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:53,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:50:53,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:50:53,019 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 258 [2022-11-20 10:50:53,020 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 229 transitions, 546 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:53,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:53,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 258 [2022-11-20 10:50:53,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:55,220 INFO L130 PetriNetUnfolder]: 2124/7722 cut-off events. [2022-11-20 10:50:55,220 INFO L131 PetriNetUnfolder]: For 740/740 co-relation queries the response was YES. [2022-11-20 10:50:55,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12488 conditions, 7722 events. 2124/7722 cut-off events. For 740/740 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 61325 event pairs, 1928 based on Foata normal form. 0/7176 useless extension candidates. Maximal degree in co-relation 5549. Up to 3941 conditions per place. [2022-11-20 10:50:55,318 INFO L137 encePairwiseOnDemand]: 255/258 looper letters, 67 selfloop transitions, 2 changer transitions 0/232 dead transitions. [2022-11-20 10:50:55,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 232 transitions, 690 flow [2022-11-20 10:50:55,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:50:55,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:50:55,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 565 transitions. [2022-11-20 10:50:55,324 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7299741602067183 [2022-11-20 10:50:55,324 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 565 transitions. [2022-11-20 10:50:55,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 565 transitions. [2022-11-20 10:50:55,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:55,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 565 transitions. [2022-11-20 10:50:55,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:55,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:55,330 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:55,330 INFO L175 Difference]: Start difference. First operand has 223 places, 229 transitions, 546 flow. Second operand 3 states and 565 transitions. [2022-11-20 10:50:55,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 232 transitions, 690 flow [2022-11-20 10:50:55,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 232 transitions, 682 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:50:55,337 INFO L231 Difference]: Finished difference. Result has 223 places, 228 transitions, 540 flow [2022-11-20 10:50:55,338 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=540, PETRI_PLACES=223, PETRI_TRANSITIONS=228} [2022-11-20 10:50:55,339 INFO L288 CegarLoopForPetriNet]: 247 programPoint places, -24 predicate places. [2022-11-20 10:50:55,339 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 228 transitions, 540 flow [2022-11-20 10:50:55,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:55,340 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:55,340 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:55,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 10:50:55,341 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-20 10:50:55,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:55,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1454553194, now seen corresponding path program 1 times [2022-11-20 10:50:55,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:55,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942879490] [2022-11-20 10:50:55,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:55,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:55,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:55,481 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:55,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:55,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942879490] [2022-11-20 10:50:55,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942879490] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:50:55,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679879764] [2022-11-20 10:50:55,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:55,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:50:55,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:50:55,484 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:50:55,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:50:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:55,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:50:55,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:50:55,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 10:50:55,794 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:50:55,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679879764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:55,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:50:55,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-20 10:50:55,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49425535] [2022-11-20 10:50:55,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:55,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:50:55,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:55,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:50:55,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:50:55,797 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 258 [2022-11-20 10:50:55,798 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 228 transitions, 540 flow. Second operand has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:55,798 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:55,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 258 [2022-11-20 10:50:55,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:57,657 INFO L130 PetriNetUnfolder]: 2110/7684 cut-off events. [2022-11-20 10:50:57,658 INFO L131 PetriNetUnfolder]: For 751/751 co-relation queries the response was YES. [2022-11-20 10:50:57,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12349 conditions, 7684 events. 2110/7684 cut-off events. For 751/751 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 61135 event pairs, 1914 based on Foata normal form. 0/7150 useless extension candidates. Maximal degree in co-relation 5461. Up to 3915 conditions per place. [2022-11-20 10:50:57,739 INFO L137 encePairwiseOnDemand]: 255/258 looper letters, 66 selfloop transitions, 2 changer transitions 0/231 dead transitions. [2022-11-20 10:50:57,739 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 231 transitions, 682 flow [2022-11-20 10:50:57,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:50:57,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:50:57,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 564 transitions. [2022-11-20 10:50:57,743 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7286821705426356 [2022-11-20 10:50:57,743 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 564 transitions. [2022-11-20 10:50:57,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 564 transitions. [2022-11-20 10:50:57,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:57,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 564 transitions. [2022-11-20 10:50:57,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:57,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:57,749 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:57,750 INFO L175 Difference]: Start difference. First operand has 223 places, 228 transitions, 540 flow. Second operand 3 states and 564 transitions. [2022-11-20 10:50:57,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 231 transitions, 682 flow [2022-11-20 10:50:57,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 231 transitions, 678 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:50:57,758 INFO L231 Difference]: Finished difference. Result has 222 places, 227 transitions, 538 flow [2022-11-20 10:50:57,759 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=538, PETRI_PLACES=222, PETRI_TRANSITIONS=227} [2022-11-20 10:50:57,760 INFO L288 CegarLoopForPetriNet]: 247 programPoint places, -25 predicate places. [2022-11-20 10:50:57,760 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 227 transitions, 538 flow [2022-11-20 10:50:57,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:57,761 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:57,761 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:57,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:50:57,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-20 10:50:57,967 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-20 10:50:57,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:57,968 INFO L85 PathProgramCache]: Analyzing trace with hash -672561609, now seen corresponding path program 1 times [2022-11-20 10:50:57,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:57,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774039853] [2022-11-20 10:50:57,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:57,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:58,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:58,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:58,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774039853] [2022-11-20 10:50:58,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774039853] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:50:58,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217674753] [2022-11-20 10:50:58,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:58,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:50:58,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:50:58,098 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:50:58,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 10:50:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:58,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:50:58,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:50:58,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 10:50:58,263 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:50:58,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217674753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:58,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:50:58,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-20 10:50:58,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919073162] [2022-11-20 10:50:58,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:58,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:50:58,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:58,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:50:58,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:50:58,269 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 258 [2022-11-20 10:50:58,270 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 227 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:58,270 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:58,271 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 258 [2022-11-20 10:50:58,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:51:04,982 INFO L130 PetriNetUnfolder]: 6385/38439 cut-off events. [2022-11-20 10:51:04,982 INFO L131 PetriNetUnfolder]: For 10424/87281 co-relation queries the response was YES. [2022-11-20 10:51:05,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51384 conditions, 38439 events. 6385/38439 cut-off events. For 10424/87281 co-relation queries the response was YES. Maximal size of possible extension queue 941. Compared 541818 event pairs, 1941 based on Foata normal form. 71/32536 useless extension candidates. Maximal degree in co-relation 43905. Up to 4468 conditions per place. [2022-11-20 10:51:05,446 INFO L137 encePairwiseOnDemand]: 244/258 looper letters, 39 selfloop transitions, 10 changer transitions 0/248 dead transitions. [2022-11-20 10:51:05,446 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 248 transitions, 707 flow [2022-11-20 10:51:05,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:51:05,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:51:05,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 701 transitions. [2022-11-20 10:51:05,450 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9056847545219638 [2022-11-20 10:51:05,450 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 701 transitions. [2022-11-20 10:51:05,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 701 transitions. [2022-11-20 10:51:05,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:51:05,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 701 transitions. [2022-11-20 10:51:05,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 233.66666666666666) internal successors, (701), 3 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:51:05,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:51:05,457 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:51:05,457 INFO L175 Difference]: Start difference. First operand has 222 places, 227 transitions, 538 flow. Second operand 3 states and 701 transitions. [2022-11-20 10:51:05,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 248 transitions, 707 flow [2022-11-20 10:51:05,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 248 transitions, 703 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:51:05,534 INFO L231 Difference]: Finished difference. Result has 224 places, 237 transitions, 622 flow [2022-11-20 10:51:05,535 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=622, PETRI_PLACES=224, PETRI_TRANSITIONS=237} [2022-11-20 10:51:05,536 INFO L288 CegarLoopForPetriNet]: 247 programPoint places, -23 predicate places. [2022-11-20 10:51:05,536 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 237 transitions, 622 flow [2022-11-20 10:51:05,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:51:05,537 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:51:05,537 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:51:05,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:51:05,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-20 10:51:05,745 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-20 10:51:05,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:51:05,746 INFO L85 PathProgramCache]: Analyzing trace with hash 787587617, now seen corresponding path program 1 times [2022-11-20 10:51:05,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:51:05,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740372093] [2022-11-20 10:51:05,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:51:05,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:51:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:05,922 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:51:05,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:51:05,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740372093] [2022-11-20 10:51:05,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740372093] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:51:05,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111190697] [2022-11-20 10:51:05,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:51:05,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:51:05,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:51:05,936 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:51:05,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 10:51:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:06,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:51:06,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:51:06,200 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:51:06,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:51:06,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:51:06,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111190697] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:51:06,303 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:51:06,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 10:51:06,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815191250] [2022-11-20 10:51:06,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:51:06,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:51:06,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:51:06,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:51:06,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:51:06,311 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 258 [2022-11-20 10:51:06,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 237 transitions, 622 flow. Second operand has 10 states, 10 states have (on average 191.9) internal successors, (1919), 10 states have internal predecessors, (1919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:51:06,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:51:06,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 258 [2022-11-20 10:51:06,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:51:06,474 INFO L130 PetriNetUnfolder]: 76/339 cut-off events. [2022-11-20 10:51:06,474 INFO L131 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2022-11-20 10:51:06,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 585 conditions, 339 events. 76/339 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1183 event pairs, 0 based on Foata normal form. 12/343 useless extension candidates. Maximal degree in co-relation 576. Up to 63 conditions per place. [2022-11-20 10:51:06,477 INFO L137 encePairwiseOnDemand]: 253/258 looper letters, 32 selfloop transitions, 7 changer transitions 0/83 dead transitions. [2022-11-20 10:51:06,478 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 83 transitions, 284 flow [2022-11-20 10:51:06,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:51:06,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 10:51:06,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1742 transitions. [2022-11-20 10:51:06,485 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7502153316106804 [2022-11-20 10:51:06,485 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1742 transitions. [2022-11-20 10:51:06,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1742 transitions. [2022-11-20 10:51:06,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:51:06,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1742 transitions. [2022-11-20 10:51:06,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 193.55555555555554) internal successors, (1742), 9 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:51:06,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 258.0) internal successors, (2580), 10 states have internal predecessors, (2580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:51:06,501 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 258.0) internal successors, (2580), 10 states have internal predecessors, (2580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:51:06,501 INFO L175 Difference]: Start difference. First operand has 224 places, 237 transitions, 622 flow. Second operand 9 states and 1742 transitions. [2022-11-20 10:51:06,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 83 transitions, 284 flow [2022-11-20 10:51:06,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 83 transitions, 282 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-11-20 10:51:06,504 INFO L231 Difference]: Finished difference. Result has 77 places, 61 transitions, 156 flow [2022-11-20 10:51:06,505 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=156, PETRI_PLACES=77, PETRI_TRANSITIONS=61} [2022-11-20 10:51:06,506 INFO L288 CegarLoopForPetriNet]: 247 programPoint places, -170 predicate places. [2022-11-20 10:51:06,506 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 61 transitions, 156 flow [2022-11-20 10:51:06,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 191.9) internal successors, (1919), 10 states have internal predecessors, (1919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:51:06,507 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:51:06,508 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:51:06,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:51:06,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9c3da3-dba5-4329-ae33-85de97e50835/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-20 10:51:06,715 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-20 10:51:06,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:51:06,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1208464956, now seen corresponding path program 1 times [2022-11-20 10:51:06,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:51:06,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403478996] [2022-11-20 10:51:06,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:51:06,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:51:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:51:06,743 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:51:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:51:06,787 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:51:06,787 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 10:51:06,788 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 42 remaining) [2022-11-20 10:51:06,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (40 of 42 remaining) [2022-11-20 10:51:06,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (39 of 42 remaining) [2022-11-20 10:51:06,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (38 of 42 remaining) [2022-11-20 10:51:06,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (37 of 42 remaining) [2022-11-20 10:51:06,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (36 of 42 remaining) [2022-11-20 10:51:06,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (35 of 42 remaining) [2022-11-20 10:51:06,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 42 remaining) [2022-11-20 10:51:06,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 42 remaining) [2022-11-20 10:51:06,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 42 remaining) [2022-11-20 10:51:06,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 42 remaining) [2022-11-20 10:51:06,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (30 of 42 remaining) [2022-11-20 10:51:06,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (29 of 42 remaining) [2022-11-20 10:51:06,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 42 remaining) [2022-11-20 10:51:06,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 42 remaining) [2022-11-20 10:51:06,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (26 of 42 remaining) [2022-11-20 10:51:06,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (25 of 42 remaining) [2022-11-20 10:51:06,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (24 of 42 remaining) [2022-11-20 10:51:06,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 42 remaining) [2022-11-20 10:51:06,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (22 of 42 remaining) [2022-11-20 10:51:06,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (21 of 42 remaining) [2022-11-20 10:51:06,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (20 of 42 remaining) [2022-11-20 10:51:06,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (19 of 42 remaining) [2022-11-20 10:51:06,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (18 of 42 remaining) [2022-11-20 10:51:06,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (17 of 42 remaining) [2022-11-20 10:51:06,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (16 of 42 remaining) [2022-11-20 10:51:06,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (15 of 42 remaining) [2022-11-20 10:51:06,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (14 of 42 remaining) [2022-11-20 10:51:06,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (13 of 42 remaining) [2022-11-20 10:51:06,797 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 42 remaining) [2022-11-20 10:51:06,797 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (11 of 42 remaining) [2022-11-20 10:51:06,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (10 of 42 remaining) [2022-11-20 10:51:06,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (9 of 42 remaining) [2022-11-20 10:51:06,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (8 of 42 remaining) [2022-11-20 10:51:06,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 42 remaining) [2022-11-20 10:51:06,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 42 remaining) [2022-11-20 10:51:06,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 42 remaining) [2022-11-20 10:51:06,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 42 remaining) [2022-11-20 10:51:06,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 42 remaining) [2022-11-20 10:51:06,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 42 remaining) [2022-11-20 10:51:06,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 42 remaining) [2022-11-20 10:51:06,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 42 remaining) [2022-11-20 10:51:06,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 10:51:06,801 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:51:06,802 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 10:51:06,802 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-20 10:51:06,890 INFO L144 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2022-11-20 10:51:06,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 307 transitions, 692 flow [2022-11-20 10:51:08,189 INFO L130 PetriNetUnfolder]: 532/5831 cut-off events. [2022-11-20 10:51:08,190 INFO L131 PetriNetUnfolder]: For 419/419 co-relation queries the response was YES. [2022-11-20 10:51:08,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6282 conditions, 5831 events. 532/5831 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 46948 event pairs, 64 based on Foata normal form. 0/4642 useless extension candidates. Maximal degree in co-relation 3329. Up to 192 conditions per place. [2022-11-20 10:51:08,273 INFO L82 GeneralOperation]: Start removeDead. Operand has 292 places, 307 transitions, 692 flow [2022-11-20 10:51:08,339 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 292 places, 307 transitions, 692 flow [2022-11-20 10:51:08,340 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:51:08,341 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;@19f1967d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:51:08,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2022-11-20 10:51:08,343 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-20 10:51:08,344 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:51:08,344 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:51:08,344 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] [2022-11-20 10:51:08,344 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-11-20 10:51:08,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:51:08,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1169659001, now seen corresponding path program 1 times [2022-11-20 10:51:08,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:51:08,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555195471] [2022-11-20 10:51:08,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:51:08,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:51:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:08,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:51:08,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:51:08,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555195471] [2022-11-20 10:51:08,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555195471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:51:08,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:51:08,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:51:08,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239028274] [2022-11-20 10:51:08,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:51:08,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:51:08,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:51:08,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:51:08,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:51:08,375 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 307 [2022-11-20 10:51:08,376 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 307 transitions, 692 flow. Second operand has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:51:08,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:51:08,376 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 307 [2022-11-20 10:51:08,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:51:26,469 INFO L130 PetriNetUnfolder]: 28496/68226 cut-off events. [2022-11-20 10:51:26,469 INFO L131 PetriNetUnfolder]: For 7787/8159 co-relation queries the response was YES. [2022-11-20 10:51:27,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116352 conditions, 68226 events. 28496/68226 cut-off events. For 7787/8159 co-relation queries the response was YES. Maximal size of possible extension queue 615. Compared 678250 event pairs, 26638 based on Foata normal form. 24648/85012 useless extension candidates. Maximal degree in co-relation 61268. Up to 45367 conditions per place. [2022-11-20 10:51:28,093 INFO L137 encePairwiseOnDemand]: 291/307 looper letters, 84 selfloop transitions, 2 changer transitions 0/278 dead transitions. [2022-11-20 10:51:28,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 278 transitions, 806 flow [2022-11-20 10:51:28,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:51:28,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:51:28,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 703 transitions. [2022-11-20 10:51:28,097 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7633007600434311 [2022-11-20 10:51:28,098 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 703 transitions. [2022-11-20 10:51:28,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 703 transitions. [2022-11-20 10:51:28,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:51:28,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 703 transitions. [2022-11-20 10:51:28,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:51:28,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 307.0) internal successors, (1228), 4 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:51:28,104 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 307.0) internal successors, (1228), 4 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:51:28,105 INFO L175 Difference]: Start difference. First operand has 292 places, 307 transitions, 692 flow. Second operand 3 states and 703 transitions. [2022-11-20 10:51:28,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 278 transitions, 806 flow [2022-11-20 10:51:28,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 278 transitions, 806 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:51:28,119 INFO L231 Difference]: Finished difference. Result has 272 places, 278 transitions, 638 flow [2022-11-20 10:51:28,120 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=307, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=638, PETRI_PLACES=272, PETRI_TRANSITIONS=278} [2022-11-20 10:51:28,121 INFO L288 CegarLoopForPetriNet]: 292 programPoint places, -20 predicate places. [2022-11-20 10:51:28,121 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 278 transitions, 638 flow [2022-11-20 10:51:28,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:51:28,122 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:51:28,122 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] [2022-11-20 10:51:28,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 10:51:28,122 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-11-20 10:51:28,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:51:28,123 INFO L85 PathProgramCache]: Analyzing trace with hash -240648979, now seen corresponding path program 1 times [2022-11-20 10:51:28,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:51:28,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074723111] [2022-11-20 10:51:28,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:51:28,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:51:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:28,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:51:28,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:51:28,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074723111] [2022-11-20 10:51:28,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074723111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:51:28,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:51:28,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:51:28,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981031374] [2022-11-20 10:51:28,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:51:28,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:51:28,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:51:28,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:51:28,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:51:28,151 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 307 [2022-11-20 10:51:28,152 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 278 transitions, 638 flow. Second operand has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:51:28,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:51:28,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 307 [2022-11-20 10:51:28,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand