./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c --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_122a5b6a-938d-4bc2-982d-2960ec76395c/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_122a5b6a-938d-4bc2-982d-2960ec76395c/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_122a5b6a-938d-4bc2-982d-2960ec76395c/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_122a5b6a-938d-4bc2-982d-2960ec76395c/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_122a5b6a-938d-4bc2-982d-2960ec76395c/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_122a5b6a-938d-4bc2-982d-2960ec76395c/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 83223bd52506e4247e7ac7ce7a49284be0292b773b9e827e6221f58042ba0602 --- 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 12:41:36,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:41:36,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:41:36,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:41:36,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:41:36,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:41:36,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:41:36,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:41:36,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:41:36,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:41:36,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:41:36,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:41:36,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:41:36,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:41:36,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:41:36,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:41:36,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:41:36,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:41:36,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:41:36,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:41:36,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:41:36,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:41:36,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:41:36,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:41:36,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:41:36,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:41:36,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:41:36,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:41:36,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:41:36,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:41:36,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:41:36,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:41:36,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:41:36,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:41:36,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:41:36,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:41:36,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:41:36,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:41:36,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:41:36,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:41:36,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:41:36,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_122a5b6a-938d-4bc2-982d-2960ec76395c/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:41:36,187 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:41:36,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:41:36,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:41:36,188 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:41:36,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:41:36,189 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:41:36,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:41:36,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:41:36,190 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:41:36,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:41:36,198 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:41:36,198 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:41:36,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:41:36,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:41:36,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:41:36,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:41:36,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:41:36,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:41:36,200 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:41:36,201 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:41:36,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:41:36,204 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:41:36,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:41:36,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:41:36,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:41:36,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:41:36,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:41:36,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:41:36,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:41:36,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:41:36,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:41:36,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:41:36,213 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:41:36,213 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:41:36,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:41:36,213 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_122a5b6a-938d-4bc2-982d-2960ec76395c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_122a5b6a-938d-4bc2-982d-2960ec76395c/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83223bd52506e4247e7ac7ce7a49284be0292b773b9e827e6221f58042ba0602 [2022-11-20 12:41:36,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:41:36,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:41:36,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:41:36,561 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:41:36,561 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:41:36,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_122a5b6a-938d-4bc2-982d-2960ec76395c/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c [2022-11-20 12:41:40,000 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:41:40,242 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:41:40,243 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_122a5b6a-938d-4bc2-982d-2960ec76395c/sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c [2022-11-20 12:41:40,252 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_122a5b6a-938d-4bc2-982d-2960ec76395c/bin/uautomizer-ug76WZFUDN/data/4be317ebc/8f615b19b49742e48923c8f855c59b6a/FLAG58804e38f [2022-11-20 12:41:40,270 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_122a5b6a-938d-4bc2-982d-2960ec76395c/bin/uautomizer-ug76WZFUDN/data/4be317ebc/8f615b19b49742e48923c8f855c59b6a [2022-11-20 12:41:40,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:41:40,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:41:40,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:41:40,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:41:40,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:41:40,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:41:40" (1/1) ... [2022-11-20 12:41:40,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d5d05cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:40, skipping insertion in model container [2022-11-20 12:41:40,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:41:40" (1/1) ... [2022-11-20 12:41:40,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:41:40,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:41:40,569 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_122a5b6a-938d-4bc2-982d-2960ec76395c/sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c[4836,4849] [2022-11-20 12:41:40,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:41:40,592 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:41:40,656 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_122a5b6a-938d-4bc2-982d-2960ec76395c/sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c[4836,4849] [2022-11-20 12:41:40,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:41:40,681 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:41:40,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:40 WrapperNode [2022-11-20 12:41:40,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:41:40,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:41:40,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:41:40,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:41:40,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:40" (1/1) ... [2022-11-20 12:41:40,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:40" (1/1) ... [2022-11-20 12:41:40,769 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 854 [2022-11-20 12:41:40,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:41:40,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:41:40,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:41:40,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:41:40,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:40" (1/1) ... [2022-11-20 12:41:40,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:40" (1/1) ... [2022-11-20 12:41:40,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:40" (1/1) ... [2022-11-20 12:41:40,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:40" (1/1) ... [2022-11-20 12:41:40,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:40" (1/1) ... [2022-11-20 12:41:40,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:40" (1/1) ... [2022-11-20 12:41:40,827 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:40" (1/1) ... [2022-11-20 12:41:40,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:40" (1/1) ... [2022-11-20 12:41:40,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:41:40,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:41:40,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:41:40,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:41:40,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:40" (1/1) ... [2022-11-20 12:41:40,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:41:40,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_122a5b6a-938d-4bc2-982d-2960ec76395c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:41:40,893 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_122a5b6a-938d-4bc2-982d-2960ec76395c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:41:40,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_122a5b6a-938d-4bc2-982d-2960ec76395c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:41:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:41:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:41:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:41:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:41:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 12:41:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 12:41:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 12:41:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 12:41:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 12:41:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 12:41:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:41:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:41:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:41:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:41:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:41:40,972 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 12:41:41,152 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:41:41,154 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:41:42,739 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:41:42,771 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:41:42,772 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 12:41:42,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:41:42 BoogieIcfgContainer [2022-11-20 12:41:42,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:41:42,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:41:42,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:41:42,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:41:42,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:41:40" (1/3) ... [2022-11-20 12:41:42,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2daa19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:41:42, skipping insertion in model container [2022-11-20 12:41:42,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:40" (2/3) ... [2022-11-20 12:41:42,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2daa19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:41:42, skipping insertion in model container [2022-11-20 12:41:42,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:41:42" (3/3) ... [2022-11-20 12:41:42,796 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-subst.wvr.c [2022-11-20 12:41:42,805 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:41:42,815 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:41:42,815 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 154 error locations. [2022-11-20 12:41:42,815 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:41:43,128 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 12:41:43,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1069 places, 1117 transitions, 2258 flow [2022-11-20 12:41:44,218 INFO L130 PetriNetUnfolder]: 58/1114 cut-off events. [2022-11-20 12:41:44,219 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 12:41:44,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1127 conditions, 1114 events. 58/1114 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3917 event pairs, 0 based on Foata normal form. 0/902 useless extension candidates. Maximal degree in co-relation 851. Up to 2 conditions per place. [2022-11-20 12:41:44,276 INFO L82 GeneralOperation]: Start removeDead. Operand has 1069 places, 1117 transitions, 2258 flow [2022-11-20 12:41:44,327 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1043 places, 1088 transitions, 2194 flow [2022-11-20 12:41:44,339 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:41:44,347 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;@d8db7ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:41:44,347 INFO L358 AbstractCegarLoop]: Starting to check reachability of 286 error locations. [2022-11-20 12:41:44,353 INFO L130 PetriNetUnfolder]: 0/35 cut-off events. [2022-11-20 12:41:44,354 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:41:44,354 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:41:44,355 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] [2022-11-20 12:41:44,355 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-20 12:41:44,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:41:44,362 INFO L85 PathProgramCache]: Analyzing trace with hash -913513700, now seen corresponding path program 1 times [2022-11-20 12:41:44,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:41:44,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634819862] [2022-11-20 12:41:44,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:41:44,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:41:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:44,665 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 12:41:44,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:41:44,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634819862] [2022-11-20 12:41:44,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634819862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:41:44,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:41:44,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:41:44,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610736103] [2022-11-20 12:41:44,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:41:44,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:41:44,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:41:44,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:41:44,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:41:44,733 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1055 out of 1117 [2022-11-20 12:41:44,746 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1043 places, 1088 transitions, 2194 flow. Second operand has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 0 states have call successors, (0), 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 12:41:44,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:41:44,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1055 of 1117 [2022-11-20 12:41:44,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:41:54,052 INFO L130 PetriNetUnfolder]: 1512/16551 cut-off events. [2022-11-20 12:41:54,052 INFO L131 PetriNetUnfolder]: For 381/381 co-relation queries the response was YES. [2022-11-20 12:41:54,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18514 conditions, 16551 events. 1512/16551 cut-off events. For 381/381 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 180841 event pairs, 735 based on Foata normal form. 1151/14023 useless extension candidates. Maximal degree in co-relation 17868. Up to 1375 conditions per place. [2022-11-20 12:41:54,827 INFO L137 encePairwiseOnDemand]: 1096/1117 looper letters, 39 selfloop transitions, 2 changer transitions 2/1069 dead transitions. [2022-11-20 12:41:54,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1044 places, 1069 transitions, 2238 flow [2022-11-20 12:41:54,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:41:54,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:41:54,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3225 transitions. [2022-11-20 12:41:54,853 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9623992837958818 [2022-11-20 12:41:54,854 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3225 transitions. [2022-11-20 12:41:54,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3225 transitions. [2022-11-20 12:41:54,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:41:54,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3225 transitions. [2022-11-20 12:41:54,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1075.0) internal successors, (3225), 3 states have internal predecessors, (3225), 0 states have call successors, (0), 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 12:41:54,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:41:54,898 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:41:54,900 INFO L175 Difference]: Start difference. First operand has 1043 places, 1088 transitions, 2194 flow. Second operand 3 states and 3225 transitions. [2022-11-20 12:41:54,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1044 places, 1069 transitions, 2238 flow [2022-11-20 12:41:54,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1038 places, 1069 transitions, 2226 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 12:41:54,944 INFO L231 Difference]: Finished difference. Result has 1038 places, 1067 transitions, 2144 flow [2022-11-20 12:41:54,948 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2144, PETRI_DIFFERENCE_MINUEND_PLACES=1036, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1069, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1067, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2144, PETRI_PLACES=1038, PETRI_TRANSITIONS=1067} [2022-11-20 12:41:54,956 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -5 predicate places. [2022-11-20 12:41:54,956 INFO L495 AbstractCegarLoop]: Abstraction has has 1038 places, 1067 transitions, 2144 flow [2022-11-20 12:41:54,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 0 states have call successors, (0), 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 12:41:54,959 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:41:54,960 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] [2022-11-20 12:41:54,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:41:54,961 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-20 12:41:54,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:41:54,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1968669096, now seen corresponding path program 1 times [2022-11-20 12:41:54,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:41:54,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778934487] [2022-11-20 12:41:54,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:41:54,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:41:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:55,108 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 12:41:55,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:41:55,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778934487] [2022-11-20 12:41:55,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778934487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:41:55,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:41:55,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:41:55,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765326312] [2022-11-20 12:41:55,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:41:55,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:41:55,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:41:55,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:41:55,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:41:55,118 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1055 out of 1117 [2022-11-20 12:41:55,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1038 places, 1067 transitions, 2144 flow. Second operand has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 0 states have call successors, (0), 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 12:41:55,124 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:41:55,124 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1055 of 1117 [2022-11-20 12:41:55,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:00,368 INFO L130 PetriNetUnfolder]: 693/8505 cut-off events. [2022-11-20 12:42:00,368 INFO L131 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2022-11-20 12:42:00,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9209 conditions, 8505 events. 693/8505 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 77001 event pairs, 285 based on Foata normal form. 0/6606 useless extension candidates. Maximal degree in co-relation 9165. Up to 665 conditions per place. [2022-11-20 12:42:01,096 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 39 selfloop transitions, 2 changer transitions 0/1066 dead transitions. [2022-11-20 12:42:01,096 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1037 places, 1066 transitions, 2224 flow [2022-11-20 12:42:01,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:01,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:01,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3207 transitions. [2022-11-20 12:42:01,105 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9570277529095792 [2022-11-20 12:42:01,106 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3207 transitions. [2022-11-20 12:42:01,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3207 transitions. [2022-11-20 12:42:01,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:01,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3207 transitions. [2022-11-20 12:42:01,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1069.0) internal successors, (3207), 3 states have internal predecessors, (3207), 0 states have call successors, (0), 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 12:42:01,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:01,131 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:01,131 INFO L175 Difference]: Start difference. First operand has 1038 places, 1067 transitions, 2144 flow. Second operand 3 states and 3207 transitions. [2022-11-20 12:42:01,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1037 places, 1066 transitions, 2224 flow [2022-11-20 12:42:01,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1035 places, 1066 transitions, 2220 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:01,154 INFO L231 Difference]: Finished difference. Result has 1035 places, 1066 transitions, 2142 flow [2022-11-20 12:42:01,156 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2138, PETRI_DIFFERENCE_MINUEND_PLACES=1033, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1066, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1064, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2142, PETRI_PLACES=1035, PETRI_TRANSITIONS=1066} [2022-11-20 12:42:01,157 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -8 predicate places. [2022-11-20 12:42:01,158 INFO L495 AbstractCegarLoop]: Abstraction has has 1035 places, 1066 transitions, 2142 flow [2022-11-20 12:42:01,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 0 states have call successors, (0), 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 12:42:01,161 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:01,162 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:42:01,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:42:01,162 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-20 12:42:01,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:01,164 INFO L85 PathProgramCache]: Analyzing trace with hash 252112990, now seen corresponding path program 1 times [2022-11-20 12:42:01,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:01,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917826815] [2022-11-20 12:42:01,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:01,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:01,254 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 12:42:01,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:01,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917826815] [2022-11-20 12:42:01,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917826815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:01,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:01,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:01,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513947927] [2022-11-20 12:42:01,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:01,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:01,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:01,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:01,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:01,261 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1055 out of 1117 [2022-11-20 12:42:01,266 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1035 places, 1066 transitions, 2142 flow. Second operand has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 0 states have call successors, (0), 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 12:42:01,267 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:01,267 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1055 of 1117 [2022-11-20 12:42:01,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:08,542 INFO L130 PetriNetUnfolder]: 1489/15199 cut-off events. [2022-11-20 12:42:08,542 INFO L131 PetriNetUnfolder]: For 288/350 co-relation queries the response was YES. [2022-11-20 12:42:08,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16637 conditions, 15199 events. 1489/15199 cut-off events. For 288/350 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 163586 event pairs, 735 based on Foata normal form. 0/11776 useless extension candidates. Maximal degree in co-relation 16586. Up to 1414 conditions per place. [2022-11-20 12:42:09,227 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 39 selfloop transitions, 2 changer transitions 0/1065 dead transitions. [2022-11-20 12:42:09,227 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1036 places, 1065 transitions, 2222 flow [2022-11-20 12:42:09,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:09,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:09,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3207 transitions. [2022-11-20 12:42:09,238 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9570277529095792 [2022-11-20 12:42:09,239 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3207 transitions. [2022-11-20 12:42:09,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3207 transitions. [2022-11-20 12:42:09,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:09,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3207 transitions. [2022-11-20 12:42:09,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1069.0) internal successors, (3207), 3 states have internal predecessors, (3207), 0 states have call successors, (0), 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 12:42:09,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:09,264 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:09,264 INFO L175 Difference]: Start difference. First operand has 1035 places, 1066 transitions, 2142 flow. Second operand 3 states and 3207 transitions. [2022-11-20 12:42:09,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1036 places, 1065 transitions, 2222 flow [2022-11-20 12:42:09,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1034 places, 1065 transitions, 2218 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:09,286 INFO L231 Difference]: Finished difference. Result has 1034 places, 1065 transitions, 2140 flow [2022-11-20 12:42:09,288 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2136, PETRI_DIFFERENCE_MINUEND_PLACES=1032, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1065, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1063, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2140, PETRI_PLACES=1034, PETRI_TRANSITIONS=1065} [2022-11-20 12:42:09,291 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -9 predicate places. [2022-11-20 12:42:09,292 INFO L495 AbstractCegarLoop]: Abstraction has has 1034 places, 1065 transitions, 2140 flow [2022-11-20 12:42:09,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 0 states have call successors, (0), 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 12:42:09,295 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:09,295 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:42:09,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:42:09,296 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-20 12:42:09,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:09,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1378213133, now seen corresponding path program 1 times [2022-11-20 12:42:09,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:09,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653546903] [2022-11-20 12:42:09,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:09,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:09,422 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 12:42:09,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:09,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653546903] [2022-11-20 12:42:09,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653546903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:09,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:09,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:09,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934066569] [2022-11-20 12:42:09,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:09,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:09,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:09,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:09,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:09,436 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1058 out of 1117 [2022-11-20 12:42:09,442 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1034 places, 1065 transitions, 2140 flow. Second operand has 3 states, 3 states have (on average 1059.3333333333333) internal successors, (3178), 3 states have internal predecessors, (3178), 0 states have call successors, (0), 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 12:42:09,442 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:09,443 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1058 of 1117 [2022-11-20 12:42:09,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:10,691 INFO L130 PetriNetUnfolder]: 157/2714 cut-off events. [2022-11-20 12:42:10,691 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 12:42:10,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2906 conditions, 2714 events. 157/2714 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 18411 event pairs, 48 based on Foata normal form. 0/2162 useless extension candidates. Maximal degree in co-relation 2848. Up to 135 conditions per place. [2022-11-20 12:42:10,777 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 36 selfloop transitions, 2 changer transitions 0/1064 dead transitions. [2022-11-20 12:42:10,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1035 places, 1064 transitions, 2214 flow [2022-11-20 12:42:10,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:10,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:10,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3213 transitions. [2022-11-20 12:42:10,786 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9588182632050134 [2022-11-20 12:42:10,786 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3213 transitions. [2022-11-20 12:42:10,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3213 transitions. [2022-11-20 12:42:10,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:10,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3213 transitions. [2022-11-20 12:42:10,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1071.0) internal successors, (3213), 3 states have internal predecessors, (3213), 0 states have call successors, (0), 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 12:42:10,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:10,810 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:10,810 INFO L175 Difference]: Start difference. First operand has 1034 places, 1065 transitions, 2140 flow. Second operand 3 states and 3213 transitions. [2022-11-20 12:42:10,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1035 places, 1064 transitions, 2214 flow [2022-11-20 12:42:10,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1033 places, 1064 transitions, 2210 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:10,832 INFO L231 Difference]: Finished difference. Result has 1033 places, 1064 transitions, 2138 flow [2022-11-20 12:42:10,834 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2134, PETRI_DIFFERENCE_MINUEND_PLACES=1031, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1064, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1062, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2138, PETRI_PLACES=1033, PETRI_TRANSITIONS=1064} [2022-11-20 12:42:10,835 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -10 predicate places. [2022-11-20 12:42:10,835 INFO L495 AbstractCegarLoop]: Abstraction has has 1033 places, 1064 transitions, 2138 flow [2022-11-20 12:42:10,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1059.3333333333333) internal successors, (3178), 3 states have internal predecessors, (3178), 0 states have call successors, (0), 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 12:42:10,837 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:10,838 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:42:10,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:42:10,838 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-20 12:42:10,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:10,839 INFO L85 PathProgramCache]: Analyzing trace with hash -100229008, now seen corresponding path program 1 times [2022-11-20 12:42:10,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:10,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356508556] [2022-11-20 12:42:10,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:10,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:10,898 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 12:42:10,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:10,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356508556] [2022-11-20 12:42:10,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356508556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:10,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:10,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:10,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091735586] [2022-11-20 12:42:10,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:10,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:10,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:10,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:10,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:10,906 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1067 out of 1117 [2022-11-20 12:42:10,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1033 places, 1064 transitions, 2138 flow. Second operand has 3 states, 3 states have (on average 1068.3333333333333) internal successors, (3205), 3 states have internal predecessors, (3205), 0 states have call successors, (0), 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 12:42:10,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:10,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1067 of 1117 [2022-11-20 12:42:10,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:11,711 INFO L130 PetriNetUnfolder]: 97/1633 cut-off events. [2022-11-20 12:42:11,711 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 12:42:11,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1778 conditions, 1633 events. 97/1633 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8623 event pairs, 36 based on Foata normal form. 0/1312 useless extension candidates. Maximal degree in co-relation 1713. Up to 100 conditions per place. [2022-11-20 12:42:11,793 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 27 selfloop transitions, 2 changer transitions 0/1063 dead transitions. [2022-11-20 12:42:11,793 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1034 places, 1063 transitions, 2194 flow [2022-11-20 12:42:11,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:11,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:11,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3231 transitions. [2022-11-20 12:42:11,924 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.964189794091316 [2022-11-20 12:42:11,924 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3231 transitions. [2022-11-20 12:42:11,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3231 transitions. [2022-11-20 12:42:11,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:11,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3231 transitions. [2022-11-20 12:42:11,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 0 states have call successors, (0), 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 12:42:11,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:11,953 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:11,954 INFO L175 Difference]: Start difference. First operand has 1033 places, 1064 transitions, 2138 flow. Second operand 3 states and 3231 transitions. [2022-11-20 12:42:11,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1034 places, 1063 transitions, 2194 flow [2022-11-20 12:42:11,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1032 places, 1063 transitions, 2190 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:11,981 INFO L231 Difference]: Finished difference. Result has 1032 places, 1063 transitions, 2136 flow [2022-11-20 12:42:11,984 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2132, PETRI_DIFFERENCE_MINUEND_PLACES=1030, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1063, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1061, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2136, PETRI_PLACES=1032, PETRI_TRANSITIONS=1063} [2022-11-20 12:42:11,991 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -11 predicate places. [2022-11-20 12:42:11,991 INFO L495 AbstractCegarLoop]: Abstraction has has 1032 places, 1063 transitions, 2136 flow [2022-11-20 12:42:11,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1068.3333333333333) internal successors, (3205), 3 states have internal predecessors, (3205), 0 states have call successors, (0), 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 12:42:11,993 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:11,994 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:42:11,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:42:11,994 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-20 12:42:11,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:11,996 INFO L85 PathProgramCache]: Analyzing trace with hash 78987220, now seen corresponding path program 1 times [2022-11-20 12:42:11,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:11,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779641209] [2022-11-20 12:42:11,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:11,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:12,075 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 12:42:12,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:12,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779641209] [2022-11-20 12:42:12,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779641209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:12,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:12,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:12,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791673372] [2022-11-20 12:42:12,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:12,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:12,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:12,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:12,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:12,083 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1070 out of 1117 [2022-11-20 12:42:12,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1032 places, 1063 transitions, 2136 flow. Second operand has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 0 states have call successors, (0), 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 12:42:12,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:12,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1070 of 1117 [2022-11-20 12:42:12,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:13,283 INFO L130 PetriNetUnfolder]: 112/2081 cut-off events. [2022-11-20 12:42:13,283 INFO L131 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2022-11-20 12:42:13,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2208 conditions, 2081 events. 112/2081 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 11131 event pairs, 30 based on Foata normal form. 0/1667 useless extension candidates. Maximal degree in co-relation 2136. Up to 88 conditions per place. [2022-11-20 12:42:13,394 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 24 selfloop transitions, 2 changer transitions 0/1062 dead transitions. [2022-11-20 12:42:13,394 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1033 places, 1062 transitions, 2186 flow [2022-11-20 12:42:13,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:13,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:13,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3237 transitions. [2022-11-20 12:42:13,404 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9659803043867502 [2022-11-20 12:42:13,405 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3237 transitions. [2022-11-20 12:42:13,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3237 transitions. [2022-11-20 12:42:13,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:13,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3237 transitions. [2022-11-20 12:42:13,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1079.0) internal successors, (3237), 3 states have internal predecessors, (3237), 0 states have call successors, (0), 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 12:42:13,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:13,429 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:13,429 INFO L175 Difference]: Start difference. First operand has 1032 places, 1063 transitions, 2136 flow. Second operand 3 states and 3237 transitions. [2022-11-20 12:42:13,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1033 places, 1062 transitions, 2186 flow [2022-11-20 12:42:13,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1031 places, 1062 transitions, 2182 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:13,458 INFO L231 Difference]: Finished difference. Result has 1031 places, 1062 transitions, 2134 flow [2022-11-20 12:42:13,460 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2130, PETRI_DIFFERENCE_MINUEND_PLACES=1029, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1062, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1060, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2134, PETRI_PLACES=1031, PETRI_TRANSITIONS=1062} [2022-11-20 12:42:13,461 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -12 predicate places. [2022-11-20 12:42:13,461 INFO L495 AbstractCegarLoop]: Abstraction has has 1031 places, 1062 transitions, 2134 flow [2022-11-20 12:42:13,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 0 states have call successors, (0), 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 12:42:13,463 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:13,463 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:42:13,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:42:13,464 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-20 12:42:13,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:13,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1525448228, now seen corresponding path program 1 times [2022-11-20 12:42:13,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:13,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828006362] [2022-11-20 12:42:13,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:13,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:13,530 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 12:42:13,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:13,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828006362] [2022-11-20 12:42:13,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828006362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:13,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:13,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:13,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384447387] [2022-11-20 12:42:13,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:13,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:13,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:13,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:13,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:13,538 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1117 [2022-11-20 12:42:13,544 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1031 places, 1062 transitions, 2134 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 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 12:42:13,544 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:13,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1117 [2022-11-20 12:42:13,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:14,485 INFO L130 PetriNetUnfolder]: 157/2207 cut-off events. [2022-11-20 12:42:14,485 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 12:42:14,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2478 conditions, 2207 events. 157/2207 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 14069 event pairs, 72 based on Foata normal form. 0/1774 useless extension candidates. Maximal degree in co-relation 2399. Up to 190 conditions per place. [2022-11-20 12:42:14,578 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 45 selfloop transitions, 2 changer transitions 0/1061 dead transitions. [2022-11-20 12:42:14,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1032 places, 1061 transitions, 2226 flow [2022-11-20 12:42:14,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:14,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:14,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3195 transitions. [2022-11-20 12:42:14,585 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9534467323187108 [2022-11-20 12:42:14,586 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3195 transitions. [2022-11-20 12:42:14,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3195 transitions. [2022-11-20 12:42:14,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:14,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3195 transitions. [2022-11-20 12:42:14,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1065.0) internal successors, (3195), 3 states have internal predecessors, (3195), 0 states have call successors, (0), 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 12:42:14,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:14,605 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:14,605 INFO L175 Difference]: Start difference. First operand has 1031 places, 1062 transitions, 2134 flow. Second operand 3 states and 3195 transitions. [2022-11-20 12:42:14,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1032 places, 1061 transitions, 2226 flow [2022-11-20 12:42:14,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1030 places, 1061 transitions, 2222 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:14,627 INFO L231 Difference]: Finished difference. Result has 1030 places, 1061 transitions, 2132 flow [2022-11-20 12:42:14,629 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2128, PETRI_DIFFERENCE_MINUEND_PLACES=1028, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1061, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1059, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2132, PETRI_PLACES=1030, PETRI_TRANSITIONS=1061} [2022-11-20 12:42:14,630 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -13 predicate places. [2022-11-20 12:42:14,630 INFO L495 AbstractCegarLoop]: Abstraction has has 1030 places, 1061 transitions, 2132 flow [2022-11-20 12:42:14,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 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 12:42:14,631 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:14,632 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:42:14,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:42:14,632 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-20 12:42:14,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:14,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1533035495, now seen corresponding path program 1 times [2022-11-20 12:42:14,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:14,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148419456] [2022-11-20 12:42:14,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:14,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:14,685 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 12:42:14,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:14,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148419456] [2022-11-20 12:42:14,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148419456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:14,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:14,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:14,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116480185] [2022-11-20 12:42:14,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:14,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:14,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:14,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:14,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:14,712 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1055 out of 1117 [2022-11-20 12:42:14,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1030 places, 1061 transitions, 2132 flow. Second operand has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 0 states have call successors, (0), 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 12:42:14,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:14,717 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1055 of 1117 [2022-11-20 12:42:14,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:16,075 INFO L130 PetriNetUnfolder]: 133/2178 cut-off events. [2022-11-20 12:42:16,075 INFO L131 PetriNetUnfolder]: For 27/74 co-relation queries the response was YES. [2022-11-20 12:42:16,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2349 conditions, 2178 events. 133/2178 cut-off events. For 27/74 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 14533 event pairs, 48 based on Foata normal form. 0/1746 useless extension candidates. Maximal degree in co-relation 2263. Up to 138 conditions per place. [2022-11-20 12:42:16,210 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 39 selfloop transitions, 2 changer transitions 0/1060 dead transitions. [2022-11-20 12:42:16,210 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1031 places, 1060 transitions, 2212 flow [2022-11-20 12:42:16,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:16,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:16,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3207 transitions. [2022-11-20 12:42:16,217 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9570277529095792 [2022-11-20 12:42:16,218 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3207 transitions. [2022-11-20 12:42:16,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3207 transitions. [2022-11-20 12:42:16,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:16,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3207 transitions. [2022-11-20 12:42:16,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1069.0) internal successors, (3207), 3 states have internal predecessors, (3207), 0 states have call successors, (0), 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 12:42:16,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:16,243 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:16,244 INFO L175 Difference]: Start difference. First operand has 1030 places, 1061 transitions, 2132 flow. Second operand 3 states and 3207 transitions. [2022-11-20 12:42:16,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1031 places, 1060 transitions, 2212 flow [2022-11-20 12:42:16,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1029 places, 1060 transitions, 2208 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:16,273 INFO L231 Difference]: Finished difference. Result has 1029 places, 1060 transitions, 2130 flow [2022-11-20 12:42:16,275 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2126, PETRI_DIFFERENCE_MINUEND_PLACES=1027, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1060, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1058, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2130, PETRI_PLACES=1029, PETRI_TRANSITIONS=1060} [2022-11-20 12:42:16,276 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -14 predicate places. [2022-11-20 12:42:16,276 INFO L495 AbstractCegarLoop]: Abstraction has has 1029 places, 1060 transitions, 2130 flow [2022-11-20 12:42:16,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 0 states have call successors, (0), 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 12:42:16,278 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:16,278 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:42:16,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:42:16,279 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-20 12:42:16,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:16,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1106525053, now seen corresponding path program 1 times [2022-11-20 12:42:16,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:16,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971565108] [2022-11-20 12:42:16,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:16,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:16,343 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 12:42:16,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:16,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971565108] [2022-11-20 12:42:16,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971565108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:16,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:16,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:16,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715341857] [2022-11-20 12:42:16,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:16,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:16,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:16,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:16,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:16,352 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1067 out of 1117 [2022-11-20 12:42:16,358 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1029 places, 1060 transitions, 2130 flow. Second operand has 3 states, 3 states have (on average 1068.3333333333333) internal successors, (3205), 3 states have internal predecessors, (3205), 0 states have call successors, (0), 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 12:42:16,358 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:16,358 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1067 of 1117 [2022-11-20 12:42:16,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:17,488 INFO L130 PetriNetUnfolder]: 97/1629 cut-off events. [2022-11-20 12:42:17,488 INFO L131 PetriNetUnfolder]: For 21/35 co-relation queries the response was YES. [2022-11-20 12:42:17,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1756 conditions, 1629 events. 97/1629 cut-off events. For 21/35 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 9156 event pairs, 36 based on Foata normal form. 0/1306 useless extension candidates. Maximal degree in co-relation 1663. Up to 100 conditions per place. [2022-11-20 12:42:17,582 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 27 selfloop transitions, 2 changer transitions 0/1059 dead transitions. [2022-11-20 12:42:17,582 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1030 places, 1059 transitions, 2186 flow [2022-11-20 12:42:17,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:17,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:17,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3231 transitions. [2022-11-20 12:42:17,592 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.964189794091316 [2022-11-20 12:42:17,592 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3231 transitions. [2022-11-20 12:42:17,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3231 transitions. [2022-11-20 12:42:17,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:17,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3231 transitions. [2022-11-20 12:42:17,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 0 states have call successors, (0), 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 12:42:17,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:17,616 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:17,617 INFO L175 Difference]: Start difference. First operand has 1029 places, 1060 transitions, 2130 flow. Second operand 3 states and 3231 transitions. [2022-11-20 12:42:17,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1030 places, 1059 transitions, 2186 flow [2022-11-20 12:42:17,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1028 places, 1059 transitions, 2182 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:17,644 INFO L231 Difference]: Finished difference. Result has 1028 places, 1059 transitions, 2128 flow [2022-11-20 12:42:17,646 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2124, PETRI_DIFFERENCE_MINUEND_PLACES=1026, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1059, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1057, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2128, PETRI_PLACES=1028, PETRI_TRANSITIONS=1059} [2022-11-20 12:42:17,647 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -15 predicate places. [2022-11-20 12:42:17,647 INFO L495 AbstractCegarLoop]: Abstraction has has 1028 places, 1059 transitions, 2128 flow [2022-11-20 12:42:17,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1068.3333333333333) internal successors, (3205), 3 states have internal predecessors, (3205), 0 states have call successors, (0), 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 12:42:17,649 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:17,650 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:42:17,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:42:17,650 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-20 12:42:17,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:17,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1248105243, now seen corresponding path program 1 times [2022-11-20 12:42:17,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:17,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033572800] [2022-11-20 12:42:17,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:17,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:17,709 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 12:42:17,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:17,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033572800] [2022-11-20 12:42:17,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033572800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:17,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:17,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:17,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695855041] [2022-11-20 12:42:17,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:17,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:17,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:17,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:17,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:17,718 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1070 out of 1117 [2022-11-20 12:42:17,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1028 places, 1059 transitions, 2128 flow. Second operand has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 0 states have call successors, (0), 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 12:42:17,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:17,724 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1070 of 1117 [2022-11-20 12:42:17,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:18,713 INFO L130 PetriNetUnfolder]: 100/1811 cut-off events. [2022-11-20 12:42:18,713 INFO L131 PetriNetUnfolder]: For 19/21 co-relation queries the response was YES. [2022-11-20 12:42:18,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1923 conditions, 1811 events. 100/1811 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 9711 event pairs, 30 based on Foata normal form. 0/1458 useless extension candidates. Maximal degree in co-relation 1823. Up to 88 conditions per place. [2022-11-20 12:42:18,824 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 24 selfloop transitions, 2 changer transitions 0/1058 dead transitions. [2022-11-20 12:42:18,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1029 places, 1058 transitions, 2178 flow [2022-11-20 12:42:18,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:18,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:18,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3237 transitions. [2022-11-20 12:42:18,831 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9659803043867502 [2022-11-20 12:42:18,831 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3237 transitions. [2022-11-20 12:42:18,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3237 transitions. [2022-11-20 12:42:18,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:18,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3237 transitions. [2022-11-20 12:42:18,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1079.0) internal successors, (3237), 3 states have internal predecessors, (3237), 0 states have call successors, (0), 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 12:42:18,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:18,850 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:18,850 INFO L175 Difference]: Start difference. First operand has 1028 places, 1059 transitions, 2128 flow. Second operand 3 states and 3237 transitions. [2022-11-20 12:42:18,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1029 places, 1058 transitions, 2178 flow [2022-11-20 12:42:18,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1027 places, 1058 transitions, 2174 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:18,872 INFO L231 Difference]: Finished difference. Result has 1027 places, 1058 transitions, 2126 flow [2022-11-20 12:42:18,874 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2122, PETRI_DIFFERENCE_MINUEND_PLACES=1025, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1058, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1056, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2126, PETRI_PLACES=1027, PETRI_TRANSITIONS=1058} [2022-11-20 12:42:18,875 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -16 predicate places. [2022-11-20 12:42:18,875 INFO L495 AbstractCegarLoop]: Abstraction has has 1027 places, 1058 transitions, 2126 flow [2022-11-20 12:42:18,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 0 states have call successors, (0), 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 12:42:18,877 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:18,878 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:42:18,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:42:18,878 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-20 12:42:18,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:18,879 INFO L85 PathProgramCache]: Analyzing trace with hash -144861478, now seen corresponding path program 1 times [2022-11-20 12:42:18,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:18,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594050073] [2022-11-20 12:42:18,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:18,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:18,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:18,928 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 12:42:18,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:18,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594050073] [2022-11-20 12:42:18,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594050073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:18,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:18,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:18,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760599908] [2022-11-20 12:42:18,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:18,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:18,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:18,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:18,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:18,935 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1117 [2022-11-20 12:42:18,938 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1027 places, 1058 transitions, 2126 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 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 12:42:18,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:18,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1117 [2022-11-20 12:42:18,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:20,167 INFO L130 PetriNetUnfolder]: 145/1937 cut-off events. [2022-11-20 12:42:20,167 INFO L131 PetriNetUnfolder]: For 39/98 co-relation queries the response was YES. [2022-11-20 12:42:20,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2172 conditions, 1937 events. 145/1937 cut-off events. For 39/98 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 13274 event pairs, 72 based on Foata normal form. 0/1550 useless extension candidates. Maximal degree in co-relation 2065. Up to 190 conditions per place. [2022-11-20 12:42:20,290 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 45 selfloop transitions, 2 changer transitions 0/1057 dead transitions. [2022-11-20 12:42:20,290 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1028 places, 1057 transitions, 2218 flow [2022-11-20 12:42:20,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:20,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:20,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3195 transitions. [2022-11-20 12:42:20,298 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9534467323187108 [2022-11-20 12:42:20,298 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3195 transitions. [2022-11-20 12:42:20,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3195 transitions. [2022-11-20 12:42:20,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:20,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3195 transitions. [2022-11-20 12:42:20,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1065.0) internal successors, (3195), 3 states have internal predecessors, (3195), 0 states have call successors, (0), 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 12:42:20,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:20,317 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:20,318 INFO L175 Difference]: Start difference. First operand has 1027 places, 1058 transitions, 2126 flow. Second operand 3 states and 3195 transitions. [2022-11-20 12:42:20,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1028 places, 1057 transitions, 2218 flow [2022-11-20 12:42:20,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1026 places, 1057 transitions, 2214 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:20,346 INFO L231 Difference]: Finished difference. Result has 1026 places, 1057 transitions, 2124 flow [2022-11-20 12:42:20,348 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2120, PETRI_DIFFERENCE_MINUEND_PLACES=1024, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1057, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1055, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2124, PETRI_PLACES=1026, PETRI_TRANSITIONS=1057} [2022-11-20 12:42:20,348 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -17 predicate places. [2022-11-20 12:42:20,349 INFO L495 AbstractCegarLoop]: Abstraction has has 1026 places, 1057 transitions, 2124 flow [2022-11-20 12:42:20,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 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 12:42:20,350 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:20,351 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:42:20,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:42:20,351 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-20 12:42:20,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:20,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1821179892, now seen corresponding path program 1 times [2022-11-20 12:42:20,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:20,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181056489] [2022-11-20 12:42:20,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:20,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:20,410 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 12:42:20,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:20,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181056489] [2022-11-20 12:42:20,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181056489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:20,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:20,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:20,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201045973] [2022-11-20 12:42:20,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:20,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:20,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:20,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:20,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:20,418 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1055 out of 1117 [2022-11-20 12:42:20,423 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1026 places, 1057 transitions, 2124 flow. Second operand has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 0 states have call successors, (0), 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 12:42:20,423 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:20,423 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1055 of 1117 [2022-11-20 12:42:20,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:21,318 INFO L130 PetriNetUnfolder]: 109/1602 cut-off events. [2022-11-20 12:42:21,318 INFO L131 PetriNetUnfolder]: For 51/53 co-relation queries the response was YES. [2022-11-20 12:42:21,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1748 conditions, 1602 events. 109/1602 cut-off events. For 51/53 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 9609 event pairs, 48 based on Foata normal form. 0/1298 useless extension candidates. Maximal degree in co-relation 1634. Up to 137 conditions per place. [2022-11-20 12:42:21,389 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 38 selfloop transitions, 2 changer transitions 0/1056 dead transitions. [2022-11-20 12:42:21,390 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1027 places, 1056 transitions, 2202 flow [2022-11-20 12:42:21,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:21,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:21,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3206 transitions. [2022-11-20 12:42:21,404 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9567293345270068 [2022-11-20 12:42:21,404 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3206 transitions. [2022-11-20 12:42:21,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3206 transitions. [2022-11-20 12:42:21,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:21,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3206 transitions. [2022-11-20 12:42:21,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1068.6666666666667) internal successors, (3206), 3 states have internal predecessors, (3206), 0 states have call successors, (0), 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 12:42:21,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:21,422 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:21,422 INFO L175 Difference]: Start difference. First operand has 1026 places, 1057 transitions, 2124 flow. Second operand 3 states and 3206 transitions. [2022-11-20 12:42:21,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1027 places, 1056 transitions, 2202 flow [2022-11-20 12:42:21,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1025 places, 1056 transitions, 2198 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:21,452 INFO L231 Difference]: Finished difference. Result has 1025 places, 1056 transitions, 2122 flow [2022-11-20 12:42:21,454 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2118, PETRI_DIFFERENCE_MINUEND_PLACES=1023, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1056, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1054, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2122, PETRI_PLACES=1025, PETRI_TRANSITIONS=1056} [2022-11-20 12:42:21,458 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -18 predicate places. [2022-11-20 12:42:21,458 INFO L495 AbstractCegarLoop]: Abstraction has has 1025 places, 1056 transitions, 2122 flow [2022-11-20 12:42:21,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 0 states have call successors, (0), 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 12:42:21,459 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:21,460 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:42:21,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:42:21,460 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-20 12:42:21,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:21,461 INFO L85 PathProgramCache]: Analyzing trace with hash 61094942, now seen corresponding path program 1 times [2022-11-20 12:42:21,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:21,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356059814] [2022-11-20 12:42:21,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:21,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:21,537 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 12:42:21,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:21,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356059814] [2022-11-20 12:42:21,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356059814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:21,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:21,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:21,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637214371] [2022-11-20 12:42:21,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:21,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:21,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:21,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:21,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:21,553 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1067 out of 1117 [2022-11-20 12:42:21,558 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1025 places, 1056 transitions, 2122 flow. Second operand has 3 states, 3 states have (on average 1068.3333333333333) internal successors, (3205), 3 states have internal predecessors, (3205), 0 states have call successors, (0), 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 12:42:21,558 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:21,558 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1067 of 1117 [2022-11-20 12:42:21,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:22,471 INFO L130 PetriNetUnfolder]: 97/1625 cut-off events. [2022-11-20 12:42:22,472 INFO L131 PetriNetUnfolder]: For 39/41 co-relation queries the response was YES. [2022-11-20 12:42:22,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1734 conditions, 1625 events. 97/1625 cut-off events. For 39/41 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 9493 event pairs, 36 based on Foata normal form. 0/1306 useless extension candidates. Maximal degree in co-relation 1613. Up to 100 conditions per place. [2022-11-20 12:42:22,541 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 27 selfloop transitions, 2 changer transitions 0/1055 dead transitions. [2022-11-20 12:42:22,542 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1026 places, 1055 transitions, 2178 flow [2022-11-20 12:42:22,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:22,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:22,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3231 transitions. [2022-11-20 12:42:22,550 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.964189794091316 [2022-11-20 12:42:22,550 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3231 transitions. [2022-11-20 12:42:22,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3231 transitions. [2022-11-20 12:42:22,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:22,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3231 transitions. [2022-11-20 12:42:22,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 0 states have call successors, (0), 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 12:42:22,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:22,561 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:22,562 INFO L175 Difference]: Start difference. First operand has 1025 places, 1056 transitions, 2122 flow. Second operand 3 states and 3231 transitions. [2022-11-20 12:42:22,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1026 places, 1055 transitions, 2178 flow [2022-11-20 12:42:22,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1024 places, 1055 transitions, 2174 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:22,589 INFO L231 Difference]: Finished difference. Result has 1024 places, 1055 transitions, 2120 flow [2022-11-20 12:42:22,590 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2116, PETRI_DIFFERENCE_MINUEND_PLACES=1022, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1055, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1053, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2120, PETRI_PLACES=1024, PETRI_TRANSITIONS=1055} [2022-11-20 12:42:22,591 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -19 predicate places. [2022-11-20 12:42:22,592 INFO L495 AbstractCegarLoop]: Abstraction has has 1024 places, 1055 transitions, 2120 flow [2022-11-20 12:42:22,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1068.3333333333333) internal successors, (3205), 3 states have internal predecessors, (3205), 0 states have call successors, (0), 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 12:42:22,593 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:22,593 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:22,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:42:22,594 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-20 12:42:22,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:22,594 INFO L85 PathProgramCache]: Analyzing trace with hash -679090004, now seen corresponding path program 1 times [2022-11-20 12:42:22,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:22,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435389133] [2022-11-20 12:42:22,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:22,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:22,660 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 12:42:22,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:22,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435389133] [2022-11-20 12:42:22,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435389133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:22,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:22,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:22,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206903431] [2022-11-20 12:42:22,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:22,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:22,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:22,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:22,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:22,668 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1070 out of 1117 [2022-11-20 12:42:22,672 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1024 places, 1055 transitions, 2120 flow. Second operand has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 0 states have call successors, (0), 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 12:42:22,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:22,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1070 of 1117 [2022-11-20 12:42:22,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:23,736 INFO L130 PetriNetUnfolder]: 88/1537 cut-off events. [2022-11-20 12:42:23,736 INFO L131 PetriNetUnfolder]: For 34/36 co-relation queries the response was YES. [2022-11-20 12:42:23,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1634 conditions, 1537 events. 88/1537 cut-off events. For 34/36 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 7769 event pairs, 30 based on Foata normal form. 0/1248 useless extension candidates. Maximal degree in co-relation 1506. Up to 88 conditions per place. [2022-11-20 12:42:23,796 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 24 selfloop transitions, 2 changer transitions 0/1054 dead transitions. [2022-11-20 12:42:23,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1025 places, 1054 transitions, 2170 flow [2022-11-20 12:42:23,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:23,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:23,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3237 transitions. [2022-11-20 12:42:23,804 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9659803043867502 [2022-11-20 12:42:23,805 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3237 transitions. [2022-11-20 12:42:23,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3237 transitions. [2022-11-20 12:42:23,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:23,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3237 transitions. [2022-11-20 12:42:23,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1079.0) internal successors, (3237), 3 states have internal predecessors, (3237), 0 states have call successors, (0), 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 12:42:23,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:23,818 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:23,818 INFO L175 Difference]: Start difference. First operand has 1024 places, 1055 transitions, 2120 flow. Second operand 3 states and 3237 transitions. [2022-11-20 12:42:23,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1025 places, 1054 transitions, 2170 flow [2022-11-20 12:42:23,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1023 places, 1054 transitions, 2166 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:23,835 INFO L231 Difference]: Finished difference. Result has 1023 places, 1054 transitions, 2118 flow [2022-11-20 12:42:23,837 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2114, PETRI_DIFFERENCE_MINUEND_PLACES=1021, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1054, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1052, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2118, PETRI_PLACES=1023, PETRI_TRANSITIONS=1054} [2022-11-20 12:42:23,837 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -20 predicate places. [2022-11-20 12:42:23,838 INFO L495 AbstractCegarLoop]: Abstraction has has 1023 places, 1054 transitions, 2118 flow [2022-11-20 12:42:23,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 0 states have call successors, (0), 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 12:42:23,839 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:23,839 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:23,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 12:42:23,839 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-20 12:42:23,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:23,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1101359883, now seen corresponding path program 1 times [2022-11-20 12:42:23,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:23,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604767152] [2022-11-20 12:42:23,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:23,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,891 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 12:42:23,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:23,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604767152] [2022-11-20 12:42:23,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604767152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:23,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:23,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:23,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511974855] [2022-11-20 12:42:23,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:23,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:23,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:23,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:23,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:23,898 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1117 [2022-11-20 12:42:23,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1023 places, 1054 transitions, 2118 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 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 12:42:23,902 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:23,902 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1117 [2022-11-20 12:42:23,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:24,917 INFO L130 PetriNetUnfolder]: 133/1647 cut-off events. [2022-11-20 12:42:24,917 INFO L131 PetriNetUnfolder]: For 75/77 co-relation queries the response was YES. [2022-11-20 12:42:24,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1846 conditions, 1647 events. 133/1647 cut-off events. For 75/77 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 11105 event pairs, 72 based on Foata normal form. 0/1326 useless extension candidates. Maximal degree in co-relation 1711. Up to 190 conditions per place. [2022-11-20 12:42:24,999 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 45 selfloop transitions, 2 changer transitions 0/1053 dead transitions. [2022-11-20 12:42:24,999 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1024 places, 1053 transitions, 2210 flow [2022-11-20 12:42:25,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:25,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:25,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3195 transitions. [2022-11-20 12:42:25,008 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9534467323187108 [2022-11-20 12:42:25,008 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3195 transitions. [2022-11-20 12:42:25,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3195 transitions. [2022-11-20 12:42:25,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:25,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3195 transitions. [2022-11-20 12:42:25,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1065.0) internal successors, (3195), 3 states have internal predecessors, (3195), 0 states have call successors, (0), 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 12:42:25,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:25,017 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:25,017 INFO L175 Difference]: Start difference. First operand has 1023 places, 1054 transitions, 2118 flow. Second operand 3 states and 3195 transitions. [2022-11-20 12:42:25,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1024 places, 1053 transitions, 2210 flow [2022-11-20 12:42:25,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1022 places, 1053 transitions, 2206 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:25,032 INFO L231 Difference]: Finished difference. Result has 1022 places, 1053 transitions, 2116 flow [2022-11-20 12:42:25,034 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2112, PETRI_DIFFERENCE_MINUEND_PLACES=1020, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1053, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1051, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2116, PETRI_PLACES=1022, PETRI_TRANSITIONS=1053} [2022-11-20 12:42:25,035 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -21 predicate places. [2022-11-20 12:42:25,035 INFO L495 AbstractCegarLoop]: Abstraction has has 1022 places, 1053 transitions, 2116 flow [2022-11-20 12:42:25,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 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 12:42:25,036 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:25,036 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:25,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 12:42:25,037 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-20 12:42:25,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:25,038 INFO L85 PathProgramCache]: Analyzing trace with hash -571746257, now seen corresponding path program 1 times [2022-11-20 12:42:25,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:25,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783920929] [2022-11-20 12:42:25,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:25,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:25,121 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 12:42:25,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:25,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783920929] [2022-11-20 12:42:25,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783920929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:25,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:25,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:25,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613218217] [2022-11-20 12:42:25,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:25,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:25,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:25,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:25,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:25,129 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1076 out of 1117 [2022-11-20 12:42:25,134 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1022 places, 1053 transitions, 2116 flow. Second operand has 3 states, 3 states have (on average 1077.3333333333333) internal successors, (3232), 3 states have internal predecessors, (3232), 0 states have call successors, (0), 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 12:42:25,134 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:25,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1076 of 1117 [2022-11-20 12:42:25,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:29,762 INFO L130 PetriNetUnfolder]: 578/9166 cut-off events. [2022-11-20 12:42:29,762 INFO L131 PetriNetUnfolder]: For 42/65 co-relation queries the response was YES. [2022-11-20 12:42:30,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9516 conditions, 9166 events. 578/9166 cut-off events. For 42/65 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 86878 event pairs, 135 based on Foata normal form. 0/7178 useless extension candidates. Maximal degree in co-relation 9374. Up to 323 conditions per place. [2022-11-20 12:42:30,251 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 18 selfloop transitions, 2 changer transitions 0/1052 dead transitions. [2022-11-20 12:42:30,251 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1023 places, 1052 transitions, 2154 flow [2022-11-20 12:42:30,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:30,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:30,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3249 transitions. [2022-11-20 12:42:30,257 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9695613249776186 [2022-11-20 12:42:30,257 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3249 transitions. [2022-11-20 12:42:30,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3249 transitions. [2022-11-20 12:42:30,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:30,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3249 transitions. [2022-11-20 12:42:30,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1083.0) internal successors, (3249), 3 states have internal predecessors, (3249), 0 states have call successors, (0), 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 12:42:30,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:30,274 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 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 12:42:30,275 INFO L175 Difference]: Start difference. First operand has 1022 places, 1053 transitions, 2116 flow. Second operand 3 states and 3249 transitions. [2022-11-20 12:42:30,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1023 places, 1052 transitions, 2154 flow [2022-11-20 12:42:30,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1021 places, 1052 transitions, 2150 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:30,299 INFO L231 Difference]: Finished difference. Result has 1021 places, 1052 transitions, 2114 flow [2022-11-20 12:42:30,301 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2110, PETRI_DIFFERENCE_MINUEND_PLACES=1019, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1052, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1050, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2114, PETRI_PLACES=1021, PETRI_TRANSITIONS=1052} [2022-11-20 12:42:30,302 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -22 predicate places. [2022-11-20 12:42:30,302 INFO L495 AbstractCegarLoop]: Abstraction has has 1021 places, 1052 transitions, 2114 flow [2022-11-20 12:42:30,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1077.3333333333333) internal successors, (3232), 3 states have internal predecessors, (3232), 0 states have call successors, (0), 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 12:42:30,303 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:30,304 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:30,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 12:42:30,304 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-20 12:42:30,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:30,305 INFO L85 PathProgramCache]: Analyzing trace with hash -342249253, now seen corresponding path program 1 times [2022-11-20 12:42:30,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:30,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037093291] [2022-11-20 12:42:30,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:30,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat