./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968128da-1d5f-4dec-809d-d8b7aebbc093/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968128da-1d5f-4dec-809d-d8b7aebbc093/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968128da-1d5f-4dec-809d-d8b7aebbc093/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968128da-1d5f-4dec-809d-d8b7aebbc093/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968128da-1d5f-4dec-809d-d8b7aebbc093/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968128da-1d5f-4dec-809d-d8b7aebbc093/bin/uautomizer-Dbtcem3rbc --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 b79c2a620eba99d5ba65b548a8599a4feb45877b2c0c8388713c23f9a60bea18 --- 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-5e519f3 [2022-11-02 20:55:44,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:55:44,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:55:44,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:55:44,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:55:44,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:55:44,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:55:44,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:55:44,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:55:44,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:55:44,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:55:44,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:55:44,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:55:44,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:55:44,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:55:44,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:55:44,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:55:44,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:55:44,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:55:44,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:55:44,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:55:44,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:55:44,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:55:44,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:55:44,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:55:44,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:55:44,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:55:44,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:55:44,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:55:44,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:55:44,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:55:44,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:55:44,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:55:44,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:55:44,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:55:44,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:55:44,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:55:44,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:55:44,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:55:44,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:55:44,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:55:44,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968128da-1d5f-4dec-809d-d8b7aebbc093/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:55:44,197 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:55:44,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:55:44,201 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:55:44,201 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:55:44,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:55:44,202 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:55:44,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:55:44,203 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:55:44,203 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:55:44,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:55:44,205 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:55:44,205 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:55:44,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:55:44,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:55:44,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:55:44,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:55:44,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:55:44,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:55:44,207 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:55:44,207 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:55:44,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:55:44,207 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:55:44,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:55:44,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:55:44,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:55:44,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:55:44,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:55:44,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:55:44,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:55:44,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:55:44,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:55:44,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:55:44,212 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:55:44,212 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:55:44,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:55:44,212 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_968128da-1d5f-4dec-809d-d8b7aebbc093/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968128da-1d5f-4dec-809d-d8b7aebbc093/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b79c2a620eba99d5ba65b548a8599a4feb45877b2c0c8388713c23f9a60bea18 [2022-11-02 20:55:44,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:55:44,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:55:44,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:55:44,614 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:55:44,615 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:55:44,617 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968128da-1d5f-4dec-809d-d8b7aebbc093/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2022-11-02 20:55:44,689 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968128da-1d5f-4dec-809d-d8b7aebbc093/bin/uautomizer-Dbtcem3rbc/data/41873e3cc/85a37d0d79644206b8fbb962bb0ede01/FLAGebf96a736 [2022-11-02 20:55:45,205 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:55:45,209 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968128da-1d5f-4dec-809d-d8b7aebbc093/sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2022-11-02 20:55:45,220 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968128da-1d5f-4dec-809d-d8b7aebbc093/bin/uautomizer-Dbtcem3rbc/data/41873e3cc/85a37d0d79644206b8fbb962bb0ede01/FLAGebf96a736 [2022-11-02 20:55:45,528 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968128da-1d5f-4dec-809d-d8b7aebbc093/bin/uautomizer-Dbtcem3rbc/data/41873e3cc/85a37d0d79644206b8fbb962bb0ede01 [2022-11-02 20:55:45,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:55:45,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:55:45,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:55:45,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:55:45,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:55:45,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:55:45" (1/1) ... [2022-11-02 20:55:45,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@267dd5d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:45, skipping insertion in model container [2022-11-02 20:55:45,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:55:45" (1/1) ... [2022-11-02 20:55:45,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:55:45,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:55:45,873 WARN L230 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_968128da-1d5f-4dec-809d-d8b7aebbc093/sv-benchmarks/c/weaver/chl-node-trans.wvr.c[3945,3958] [2022-11-02 20:55:45,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:55:45,895 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:55:45,944 WARN L230 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_968128da-1d5f-4dec-809d-d8b7aebbc093/sv-benchmarks/c/weaver/chl-node-trans.wvr.c[3945,3958] [2022-11-02 20:55:45,954 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:55:45,969 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:55:45,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:45 WrapperNode [2022-11-02 20:55:45,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:55:45,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:55:45,972 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:55:45,972 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:55:45,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:45" (1/1) ... [2022-11-02 20:55:46,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:45" (1/1) ... [2022-11-02 20:55:46,062 INFO L138 Inliner]: procedures = 27, calls = 66, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 807 [2022-11-02 20:55:46,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:55:46,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:55:46,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:55:46,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:55:46,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:45" (1/1) ... [2022-11-02 20:55:46,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:45" (1/1) ... [2022-11-02 20:55:46,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:45" (1/1) ... [2022-11-02 20:55:46,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:45" (1/1) ... [2022-11-02 20:55:46,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:45" (1/1) ... [2022-11-02 20:55:46,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:45" (1/1) ... [2022-11-02 20:55:46,122 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:45" (1/1) ... [2022-11-02 20:55:46,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:45" (1/1) ... [2022-11-02 20:55:46,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:55:46,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:55:46,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:55:46,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:55:46,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:45" (1/1) ... [2022-11-02 20:55:46,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:55:46,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968128da-1d5f-4dec-809d-d8b7aebbc093/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:46,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968128da-1d5f-4dec-809d-d8b7aebbc093/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:46,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968128da-1d5f-4dec-809d-d8b7aebbc093/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:55:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:55:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:55:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:55:46,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:55:46,264 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:55:46,265 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:55:46,265 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:55:46,266 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:55:46,266 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 20:55:46,266 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 20:55:46,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:55:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:55:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:55:46,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:55:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:55:46,269 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:55:46,455 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:55:46,457 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:55:47,813 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:55:47,841 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:55:47,842 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-02 20:55:47,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:55:47 BoogieIcfgContainer [2022-11-02 20:55:47,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:55:47,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:55:47,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:55:47,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:55:47,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:55:45" (1/3) ... [2022-11-02 20:55:47,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5d7191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:55:47, skipping insertion in model container [2022-11-02 20:55:47,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:45" (2/3) ... [2022-11-02 20:55:47,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5d7191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:55:47, skipping insertion in model container [2022-11-02 20:55:47,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:55:47" (3/3) ... [2022-11-02 20:55:47,859 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2022-11-02 20:55:47,869 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:55:47,881 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:55:47,881 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 117 error locations. [2022-11-02 20:55:47,881 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:55:48,087 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-02 20:55:48,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1023 places, 1064 transitions, 2152 flow [2022-11-02 20:55:48,789 INFO L130 PetriNetUnfolder]: 51/1061 cut-off events. [2022-11-02 20:55:48,789 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 20:55:48,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1074 conditions, 1061 events. 51/1061 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2290 event pairs, 0 based on Foata normal form. 0/893 useless extension candidates. Maximal degree in co-relation 840. Up to 2 conditions per place. [2022-11-02 20:55:48,816 INFO L82 GeneralOperation]: Start removeDead. Operand has 1023 places, 1064 transitions, 2152 flow [2022-11-02 20:55:48,845 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 998 places, 1037 transitions, 2092 flow [2022-11-02 20:55:48,861 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:55:48,871 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;@3a180cab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:55:48,871 INFO L358 AbstractCegarLoop]: Starting to check reachability of 195 error locations. [2022-11-02 20:55:48,877 INFO L130 PetriNetUnfolder]: 0/38 cut-off events. [2022-11-02 20:55:48,877 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:55:48,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:55:48,878 INFO L208 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] [2022-11-02 20:55:48,879 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-02 20:55:48,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:48,886 INFO L85 PathProgramCache]: Analyzing trace with hash 811713284, now seen corresponding path program 1 times [2022-11-02 20:55:48,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:48,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670156105] [2022-11-02 20:55:48,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:48,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:49,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:49,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:49,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:49,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670156105] [2022-11-02 20:55:49,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670156105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:49,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:49,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:55:49,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855758706] [2022-11-02 20:55:49,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:49,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:55:49,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:49,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:55:49,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:55:49,231 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 992 out of 1064 [2022-11-02 20:55:49,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 998 places, 1037 transitions, 2092 flow. Second operand has 3 states, 3 states have (on average 993.3333333333334) internal successors, (2980), 3 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:49,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:55:49,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 992 of 1064 [2022-11-02 20:55:49,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:55:51,568 INFO L130 PetriNetUnfolder]: 206/3367 cut-off events. [2022-11-02 20:55:51,568 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2022-11-02 20:55:51,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3710 conditions, 3367 events. 206/3367 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 22750 event pairs, 117 based on Foata normal form. 145/2869 useless extension candidates. Maximal degree in co-relation 2791. Up to 274 conditions per place. [2022-11-02 20:55:51,719 INFO L137 encePairwiseOnDemand]: 1033/1064 looper letters, 39 selfloop transitions, 2 changer transitions 16/1008 dead transitions. [2022-11-02 20:55:51,720 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 999 places, 1008 transitions, 2116 flow [2022-11-02 20:55:51,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:55:51,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:55:51,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3046 transitions. [2022-11-02 20:55:51,743 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9542606516290727 [2022-11-02 20:55:51,743 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3046 transitions. [2022-11-02 20:55:51,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3046 transitions. [2022-11-02 20:55:51,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:55:51,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3046 transitions. [2022-11-02 20:55:51,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1015.3333333333334) internal successors, (3046), 3 states have internal predecessors, (3046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:51,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:51,778 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:51,780 INFO L175 Difference]: Start difference. First operand has 998 places, 1037 transitions, 2092 flow. Second operand 3 states and 3046 transitions. [2022-11-02 20:55:51,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 999 places, 1008 transitions, 2116 flow [2022-11-02 20:55:51,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 993 places, 1008 transitions, 2104 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-02 20:55:51,808 INFO L231 Difference]: Finished difference. Result has 993 places, 992 transitions, 1994 flow [2022-11-02 20:55:51,812 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=2022, PETRI_DIFFERENCE_MINUEND_PLACES=991, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1008, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1006, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1994, PETRI_PLACES=993, PETRI_TRANSITIONS=992} [2022-11-02 20:55:51,818 INFO L287 CegarLoopForPetriNet]: 998 programPoint places, -5 predicate places. [2022-11-02 20:55:51,818 INFO L495 AbstractCegarLoop]: Abstraction has has 993 places, 992 transitions, 1994 flow [2022-11-02 20:55:51,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 993.3333333333334) internal successors, (2980), 3 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:51,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:55:51,821 INFO L208 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] [2022-11-02 20:55:51,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:55:51,822 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-02 20:55:51,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:51,822 INFO L85 PathProgramCache]: Analyzing trace with hash -686130824, now seen corresponding path program 1 times [2022-11-02 20:55:51,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:51,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405971896] [2022-11-02 20:55:51,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:51,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:51,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:51,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:51,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405971896] [2022-11-02 20:55:51,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405971896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:51,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:51,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:55:51,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116409410] [2022-11-02 20:55:51,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:51,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:55:51,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:51,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:55:51,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:55:51,908 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 995 out of 1064 [2022-11-02 20:55:51,912 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 993 places, 992 transitions, 1994 flow. Second operand has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:51,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:55:51,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 995 of 1064 [2022-11-02 20:55:51,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:55:53,337 INFO L130 PetriNetUnfolder]: 133/2750 cut-off events. [2022-11-02 20:55:53,337 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-02 20:55:53,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2918 conditions, 2750 events. 133/2750 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 16479 event pairs, 60 based on Foata normal form. 0/2297 useless extension candidates. Maximal degree in co-relation 2871. Up to 146 conditions per place. [2022-11-02 20:55:53,449 INFO L137 encePairwiseOnDemand]: 1053/1064 looper letters, 27 selfloop transitions, 1 changer transitions 0/982 dead transitions. [2022-11-02 20:55:53,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 969 places, 982 transitions, 2030 flow [2022-11-02 20:55:53,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:55:53,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:55:53,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3023 transitions. [2022-11-02 20:55:53,458 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9470551378446115 [2022-11-02 20:55:53,458 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3023 transitions. [2022-11-02 20:55:53,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3023 transitions. [2022-11-02 20:55:53,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:55:53,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3023 transitions. [2022-11-02 20:55:53,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1007.6666666666666) internal successors, (3023), 3 states have internal predecessors, (3023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:53,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:53,483 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:53,483 INFO L175 Difference]: Start difference. First operand has 993 places, 992 transitions, 1994 flow. Second operand 3 states and 3023 transitions. [2022-11-02 20:55:53,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 969 places, 982 transitions, 2030 flow [2022-11-02 20:55:53,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 967 places, 982 transitions, 2026 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:55:53,507 INFO L231 Difference]: Finished difference. Result has 967 places, 982 transitions, 1972 flow [2022-11-02 20:55:53,509 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1970, PETRI_DIFFERENCE_MINUEND_PLACES=965, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=982, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=981, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1972, PETRI_PLACES=967, PETRI_TRANSITIONS=982} [2022-11-02 20:55:53,510 INFO L287 CegarLoopForPetriNet]: 998 programPoint places, -31 predicate places. [2022-11-02 20:55:53,510 INFO L495 AbstractCegarLoop]: Abstraction has has 967 places, 982 transitions, 1972 flow [2022-11-02 20:55:53,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:53,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:55:53,513 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:55:53,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:55:53,514 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-02 20:55:53,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:53,515 INFO L85 PathProgramCache]: Analyzing trace with hash 2051119130, now seen corresponding path program 1 times [2022-11-02 20:55:53,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:53,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239551495] [2022-11-02 20:55:53,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:53,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:53,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:53,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:53,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239551495] [2022-11-02 20:55:53,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239551495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:53,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:53,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:55:53,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573724555] [2022-11-02 20:55:53,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:53,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:55:53,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:53,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:55:53,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:55:53,593 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 992 out of 1064 [2022-11-02 20:55:53,598 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 967 places, 982 transitions, 1972 flow. Second operand has 3 states, 3 states have (on average 993.3333333333334) internal successors, (2980), 3 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:53,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:55:53,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 992 of 1064 [2022-11-02 20:55:53,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:55:55,857 INFO L130 PetriNetUnfolder]: 427/5265 cut-off events. [2022-11-02 20:55:55,857 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-02 20:55:55,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5915 conditions, 5265 events. 427/5265 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 44653 event pairs, 279 based on Foata normal form. 0/4306 useless extension candidates. Maximal degree in co-relation 5869. Up to 534 conditions per place. [2022-11-02 20:55:56,006 INFO L137 encePairwiseOnDemand]: 1061/1064 looper letters, 39 selfloop transitions, 2 changer transitions 0/981 dead transitions. [2022-11-02 20:55:56,007 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 968 places, 981 transitions, 2052 flow [2022-11-02 20:55:56,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:55:56,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:55:56,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3018 transitions. [2022-11-02 20:55:56,014 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9454887218045113 [2022-11-02 20:55:56,014 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3018 transitions. [2022-11-02 20:55:56,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3018 transitions. [2022-11-02 20:55:56,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:55:56,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3018 transitions. [2022-11-02 20:55:56,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1006.0) internal successors, (3018), 3 states have internal predecessors, (3018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:56,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:56,035 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:56,036 INFO L175 Difference]: Start difference. First operand has 967 places, 982 transitions, 1972 flow. Second operand 3 states and 3018 transitions. [2022-11-02 20:55:56,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 968 places, 981 transitions, 2052 flow [2022-11-02 20:55:56,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 967 places, 981 transitions, 2051 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:55:56,056 INFO L231 Difference]: Finished difference. Result has 967 places, 981 transitions, 1973 flow [2022-11-02 20:55:56,057 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1969, PETRI_DIFFERENCE_MINUEND_PLACES=965, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=981, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=979, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1973, PETRI_PLACES=967, PETRI_TRANSITIONS=981} [2022-11-02 20:55:56,058 INFO L287 CegarLoopForPetriNet]: 998 programPoint places, -31 predicate places. [2022-11-02 20:55:56,059 INFO L495 AbstractCegarLoop]: Abstraction has has 967 places, 981 transitions, 1973 flow [2022-11-02 20:55:56,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 993.3333333333334) internal successors, (2980), 3 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:56,061 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:55:56,062 INFO L208 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] [2022-11-02 20:55:56,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:55:56,062 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-02 20:55:56,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:56,063 INFO L85 PathProgramCache]: Analyzing trace with hash -717438117, now seen corresponding path program 1 times [2022-11-02 20:55:56,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:56,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576887281] [2022-11-02 20:55:56,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:56,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:56,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:56,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:56,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:56,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576887281] [2022-11-02 20:55:56,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576887281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:56,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:56,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:55:56,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798432387] [2022-11-02 20:55:56,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:56,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:55:56,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:56,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:55:56,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:55:56,271 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 995 out of 1064 [2022-11-02 20:55:56,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 967 places, 981 transitions, 1973 flow. Second operand has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:56,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:55:56,276 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 995 of 1064 [2022-11-02 20:55:56,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:55:57,941 INFO L130 PetriNetUnfolder]: 251/4131 cut-off events. [2022-11-02 20:55:57,941 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-02 20:55:58,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4460 conditions, 4131 events. 251/4131 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 31906 event pairs, 132 based on Foata normal form. 0/3465 useless extension candidates. Maximal degree in co-relation 4415. Up to 264 conditions per place. [2022-11-02 20:55:58,080 INFO L137 encePairwiseOnDemand]: 1053/1064 looper letters, 27 selfloop transitions, 1 changer transitions 0/971 dead transitions. [2022-11-02 20:55:58,080 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 959 places, 971 transitions, 2009 flow [2022-11-02 20:55:58,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:55:58,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:55:58,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3023 transitions. [2022-11-02 20:55:58,088 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9470551378446115 [2022-11-02 20:55:58,089 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3023 transitions. [2022-11-02 20:55:58,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3023 transitions. [2022-11-02 20:55:58,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:55:58,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3023 transitions. [2022-11-02 20:55:58,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1007.6666666666666) internal successors, (3023), 3 states have internal predecessors, (3023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:58,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:58,112 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:58,112 INFO L175 Difference]: Start difference. First operand has 967 places, 981 transitions, 1973 flow. Second operand 3 states and 3023 transitions. [2022-11-02 20:55:58,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 959 places, 971 transitions, 2009 flow [2022-11-02 20:55:58,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 957 places, 971 transitions, 2005 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:55:58,136 INFO L231 Difference]: Finished difference. Result has 957 places, 971 transitions, 1951 flow [2022-11-02 20:55:58,138 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1949, PETRI_DIFFERENCE_MINUEND_PLACES=955, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=971, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=970, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1951, PETRI_PLACES=957, PETRI_TRANSITIONS=971} [2022-11-02 20:55:58,139 INFO L287 CegarLoopForPetriNet]: 998 programPoint places, -41 predicate places. [2022-11-02 20:55:58,139 INFO L495 AbstractCegarLoop]: Abstraction has has 957 places, 971 transitions, 1951 flow [2022-11-02 20:55:58,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:58,141 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:55:58,142 INFO L208 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] [2022-11-02 20:55:58,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:55:58,142 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-02 20:55:58,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:58,143 INFO L85 PathProgramCache]: Analyzing trace with hash -430221289, now seen corresponding path program 1 times [2022-11-02 20:55:58,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:58,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551861955] [2022-11-02 20:55:58,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:58,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:58,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:58,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:58,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551861955] [2022-11-02 20:55:58,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551861955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:58,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:58,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:55:58,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63677785] [2022-11-02 20:55:58,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:58,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:55:58,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:58,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:55:58,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:55:58,209 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 992 out of 1064 [2022-11-02 20:55:58,214 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 957 places, 971 transitions, 1951 flow. Second operand has 3 states, 3 states have (on average 993.3333333333334) internal successors, (2980), 3 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:58,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:55:58,215 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 992 of 1064 [2022-11-02 20:55:58,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:56:00,017 INFO L130 PetriNetUnfolder]: 431/4921 cut-off events. [2022-11-02 20:56:00,017 INFO L131 PetriNetUnfolder]: For 122/166 co-relation queries the response was YES. [2022-11-02 20:56:00,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5488 conditions, 4921 events. 431/4921 cut-off events. For 122/166 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 41812 event pairs, 279 based on Foata normal form. 0/4062 useless extension candidates. Maximal degree in co-relation 5442. Up to 549 conditions per place. [2022-11-02 20:56:00,171 INFO L137 encePairwiseOnDemand]: 1061/1064 looper letters, 39 selfloop transitions, 2 changer transitions 0/970 dead transitions. [2022-11-02 20:56:00,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 958 places, 970 transitions, 2031 flow [2022-11-02 20:56:00,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:56:00,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:56:00,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3018 transitions. [2022-11-02 20:56:00,180 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9454887218045113 [2022-11-02 20:56:00,180 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3018 transitions. [2022-11-02 20:56:00,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3018 transitions. [2022-11-02 20:56:00,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:56:00,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3018 transitions. [2022-11-02 20:56:00,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1006.0) internal successors, (3018), 3 states have internal predecessors, (3018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:00,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:00,200 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:00,200 INFO L175 Difference]: Start difference. First operand has 957 places, 971 transitions, 1951 flow. Second operand 3 states and 3018 transitions. [2022-11-02 20:56:00,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 958 places, 970 transitions, 2031 flow [2022-11-02 20:56:00,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 957 places, 970 transitions, 2030 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:56:00,224 INFO L231 Difference]: Finished difference. Result has 957 places, 970 transitions, 1952 flow [2022-11-02 20:56:00,226 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1948, PETRI_DIFFERENCE_MINUEND_PLACES=955, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=970, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=968, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1952, PETRI_PLACES=957, PETRI_TRANSITIONS=970} [2022-11-02 20:56:00,227 INFO L287 CegarLoopForPetriNet]: 998 programPoint places, -41 predicate places. [2022-11-02 20:56:00,227 INFO L495 AbstractCegarLoop]: Abstraction has has 957 places, 970 transitions, 1952 flow [2022-11-02 20:56:00,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 993.3333333333334) internal successors, (2980), 3 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:00,229 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:56:00,229 INFO L208 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] [2022-11-02 20:56:00,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:56:00,230 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-02 20:56:00,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:00,230 INFO L85 PathProgramCache]: Analyzing trace with hash 504556368, now seen corresponding path program 1 times [2022-11-02 20:56:00,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:00,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791154173] [2022-11-02 20:56:00,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:00,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:00,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:56:00,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:00,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791154173] [2022-11-02 20:56:00,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791154173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:00,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:00,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:56:00,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915687022] [2022-11-02 20:56:00,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:00,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:56:00,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:00,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:56:00,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:56:00,317 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 995 out of 1064 [2022-11-02 20:56:00,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 957 places, 970 transitions, 1952 flow. Second operand has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:00,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:56:00,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 995 of 1064 [2022-11-02 20:56:00,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:56:01,567 INFO L130 PetriNetUnfolder]: 252/3844 cut-off events. [2022-11-02 20:56:01,567 INFO L131 PetriNetUnfolder]: For 65/94 co-relation queries the response was YES. [2022-11-02 20:56:01,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4136 conditions, 3844 events. 252/3844 cut-off events. For 65/94 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 28444 event pairs, 132 based on Foata normal form. 0/3264 useless extension candidates. Maximal degree in co-relation 4091. Up to 274 conditions per place. [2022-11-02 20:56:01,632 INFO L137 encePairwiseOnDemand]: 1053/1064 looper letters, 27 selfloop transitions, 1 changer transitions 0/960 dead transitions. [2022-11-02 20:56:01,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 949 places, 960 transitions, 1988 flow [2022-11-02 20:56:01,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:56:01,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:56:01,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3023 transitions. [2022-11-02 20:56:01,639 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9470551378446115 [2022-11-02 20:56:01,639 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3023 transitions. [2022-11-02 20:56:01,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3023 transitions. [2022-11-02 20:56:01,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:56:01,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3023 transitions. [2022-11-02 20:56:01,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1007.6666666666666) internal successors, (3023), 3 states have internal predecessors, (3023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:01,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:01,655 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:01,656 INFO L175 Difference]: Start difference. First operand has 957 places, 970 transitions, 1952 flow. Second operand 3 states and 3023 transitions. [2022-11-02 20:56:01,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 949 places, 960 transitions, 1988 flow [2022-11-02 20:56:01,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 947 places, 960 transitions, 1984 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:56:01,672 INFO L231 Difference]: Finished difference. Result has 947 places, 960 transitions, 1930 flow [2022-11-02 20:56:01,674 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1928, PETRI_DIFFERENCE_MINUEND_PLACES=945, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=960, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=959, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1930, PETRI_PLACES=947, PETRI_TRANSITIONS=960} [2022-11-02 20:56:01,675 INFO L287 CegarLoopForPetriNet]: 998 programPoint places, -51 predicate places. [2022-11-02 20:56:01,675 INFO L495 AbstractCegarLoop]: Abstraction has has 947 places, 960 transitions, 1930 flow [2022-11-02 20:56:01,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:01,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:56:01,677 INFO L208 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] [2022-11-02 20:56:01,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:56:01,677 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-02 20:56:01,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:01,678 INFO L85 PathProgramCache]: Analyzing trace with hash -2075910050, now seen corresponding path program 1 times [2022-11-02 20:56:01,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:01,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099090055] [2022-11-02 20:56:01,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:01,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:01,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:56:01,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:01,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099090055] [2022-11-02 20:56:01,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099090055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:01,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:01,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:56:01,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551322763] [2022-11-02 20:56:01,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:01,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:56:01,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:01,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:56:01,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:56:01,733 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1016 out of 1064 [2022-11-02 20:56:01,737 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 947 places, 960 transitions, 1930 flow. Second operand has 3 states, 3 states have (on average 1017.3333333333334) internal successors, (3052), 3 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:01,737 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:56:01,737 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1016 of 1064 [2022-11-02 20:56:01,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:56:02,056 INFO L130 PetriNetUnfolder]: 35/1307 cut-off events. [2022-11-02 20:56:02,056 INFO L131 PetriNetUnfolder]: For 3/9 co-relation queries the response was YES. [2022-11-02 20:56:02,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1351 conditions, 1307 events. 35/1307 cut-off events. For 3/9 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3872 event pairs, 6 based on Foata normal form. 0/1141 useless extension candidates. Maximal degree in co-relation 1305. Up to 28 conditions per place. [2022-11-02 20:56:02,080 INFO L137 encePairwiseOnDemand]: 1061/1064 looper letters, 15 selfloop transitions, 2 changer transitions 0/959 dead transitions. [2022-11-02 20:56:02,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 948 places, 959 transitions, 1962 flow [2022-11-02 20:56:02,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:56:02,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:56:02,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3066 transitions. [2022-11-02 20:56:02,088 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9605263157894737 [2022-11-02 20:56:02,088 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3066 transitions. [2022-11-02 20:56:02,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3066 transitions. [2022-11-02 20:56:02,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:56:02,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3066 transitions. [2022-11-02 20:56:02,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1022.0) internal successors, (3066), 3 states have internal predecessors, (3066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:02,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:02,105 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:02,105 INFO L175 Difference]: Start difference. First operand has 947 places, 960 transitions, 1930 flow. Second operand 3 states and 3066 transitions. [2022-11-02 20:56:02,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 948 places, 959 transitions, 1962 flow [2022-11-02 20:56:02,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 947 places, 959 transitions, 1961 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:56:02,124 INFO L231 Difference]: Finished difference. Result has 947 places, 959 transitions, 1931 flow [2022-11-02 20:56:02,125 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1927, PETRI_DIFFERENCE_MINUEND_PLACES=945, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=959, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=957, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1931, PETRI_PLACES=947, PETRI_TRANSITIONS=959} [2022-11-02 20:56:02,126 INFO L287 CegarLoopForPetriNet]: 998 programPoint places, -51 predicate places. [2022-11-02 20:56:02,126 INFO L495 AbstractCegarLoop]: Abstraction has has 947 places, 959 transitions, 1931 flow [2022-11-02 20:56:02,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1017.3333333333334) internal successors, (3052), 3 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:02,128 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:56:02,128 INFO L208 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] [2022-11-02 20:56:02,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:56:02,129 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-02 20:56:02,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:02,129 INFO L85 PathProgramCache]: Analyzing trace with hash 330099482, now seen corresponding path program 1 times [2022-11-02 20:56:02,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:02,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869875759] [2022-11-02 20:56:02,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:02,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:02,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:02,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:56:02,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:02,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869875759] [2022-11-02 20:56:02,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869875759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:02,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:02,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:56:02,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853588807] [2022-11-02 20:56:02,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:02,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:56:02,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:02,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:56:02,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:56:02,183 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1013 out of 1064 [2022-11-02 20:56:02,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 947 places, 959 transitions, 1931 flow. Second operand has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:02,187 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:56:02,187 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1013 of 1064 [2022-11-02 20:56:02,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:56:02,639 INFO L130 PetriNetUnfolder]: 55/1558 cut-off events. [2022-11-02 20:56:02,639 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 20:56:02,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1643 conditions, 1558 events. 55/1558 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6963 event pairs, 18 based on Foata normal form. 0/1350 useless extension candidates. Maximal degree in co-relation 1597. Up to 55 conditions per place. [2022-11-02 20:56:02,666 INFO L137 encePairwiseOnDemand]: 1061/1064 looper letters, 18 selfloop transitions, 2 changer transitions 0/958 dead transitions. [2022-11-02 20:56:02,666 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 948 places, 958 transitions, 1969 flow [2022-11-02 20:56:02,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:56:02,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:56:02,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3060 transitions. [2022-11-02 20:56:02,673 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9586466165413534 [2022-11-02 20:56:02,673 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3060 transitions. [2022-11-02 20:56:02,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3060 transitions. [2022-11-02 20:56:02,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:56:02,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3060 transitions. [2022-11-02 20:56:02,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1020.0) internal successors, (3060), 3 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:02,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:02,691 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:02,691 INFO L175 Difference]: Start difference. First operand has 947 places, 959 transitions, 1931 flow. Second operand 3 states and 3060 transitions. [2022-11-02 20:56:02,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 948 places, 958 transitions, 1969 flow [2022-11-02 20:56:02,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 946 places, 958 transitions, 1965 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:56:02,710 INFO L231 Difference]: Finished difference. Result has 946 places, 958 transitions, 1929 flow [2022-11-02 20:56:02,712 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1925, PETRI_DIFFERENCE_MINUEND_PLACES=944, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=958, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=956, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1929, PETRI_PLACES=946, PETRI_TRANSITIONS=958} [2022-11-02 20:56:02,713 INFO L287 CegarLoopForPetriNet]: 998 programPoint places, -52 predicate places. [2022-11-02 20:56:02,713 INFO L495 AbstractCegarLoop]: Abstraction has has 946 places, 958 transitions, 1929 flow [2022-11-02 20:56:02,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:02,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:56:02,715 INFO L208 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] [2022-11-02 20:56:02,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:56:02,716 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-02 20:56:02,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:02,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1946153593, now seen corresponding path program 1 times [2022-11-02 20:56:02,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:02,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577671969] [2022-11-02 20:56:02,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:02,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:02,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:56:02,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:02,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577671969] [2022-11-02 20:56:02,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577671969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:02,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:02,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:56:02,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008992519] [2022-11-02 20:56:02,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:02,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:56:02,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:02,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:56:02,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:56:02,778 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1013 out of 1064 [2022-11-02 20:56:02,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 946 places, 958 transitions, 1929 flow. Second operand has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:02,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:56:02,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1013 of 1064 [2022-11-02 20:56:02,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:56:03,193 INFO L130 PetriNetUnfolder]: 55/1519 cut-off events. [2022-11-02 20:56:03,194 INFO L131 PetriNetUnfolder]: For 3/21 co-relation queries the response was YES. [2022-11-02 20:56:03,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1604 conditions, 1519 events. 55/1519 cut-off events. For 3/21 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6403 event pairs, 18 based on Foata normal form. 0/1317 useless extension candidates. Maximal degree in co-relation 1558. Up to 55 conditions per place. [2022-11-02 20:56:03,215 INFO L137 encePairwiseOnDemand]: 1061/1064 looper letters, 18 selfloop transitions, 2 changer transitions 0/957 dead transitions. [2022-11-02 20:56:03,215 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 947 places, 957 transitions, 1967 flow [2022-11-02 20:56:03,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:56:03,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:56:03,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3060 transitions. [2022-11-02 20:56:03,224 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9586466165413534 [2022-11-02 20:56:03,225 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3060 transitions. [2022-11-02 20:56:03,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3060 transitions. [2022-11-02 20:56:03,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:56:03,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3060 transitions. [2022-11-02 20:56:03,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1020.0) internal successors, (3060), 3 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:03,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:03,241 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:03,241 INFO L175 Difference]: Start difference. First operand has 946 places, 958 transitions, 1929 flow. Second operand 3 states and 3060 transitions. [2022-11-02 20:56:03,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 947 places, 957 transitions, 1967 flow [2022-11-02 20:56:03,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 945 places, 957 transitions, 1963 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:56:03,259 INFO L231 Difference]: Finished difference. Result has 945 places, 957 transitions, 1927 flow [2022-11-02 20:56:03,260 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1923, PETRI_DIFFERENCE_MINUEND_PLACES=943, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=957, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=955, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1927, PETRI_PLACES=945, PETRI_TRANSITIONS=957} [2022-11-02 20:56:03,261 INFO L287 CegarLoopForPetriNet]: 998 programPoint places, -53 predicate places. [2022-11-02 20:56:03,261 INFO L495 AbstractCegarLoop]: Abstraction has has 945 places, 957 transitions, 1927 flow [2022-11-02 20:56:03,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:03,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:56:03,263 INFO L208 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] [2022-11-02 20:56:03,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:56:03,263 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-02 20:56:03,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:03,264 INFO L85 PathProgramCache]: Analyzing trace with hash 269893481, now seen corresponding path program 1 times [2022-11-02 20:56:03,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:03,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266041248] [2022-11-02 20:56:03,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:03,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:03,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:56:03,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:03,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266041248] [2022-11-02 20:56:03,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266041248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:03,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:03,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:56:03,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801851808] [2022-11-02 20:56:03,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:03,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:56:03,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:03,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:56:03,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:56:03,321 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1016 out of 1064 [2022-11-02 20:56:03,325 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 945 places, 957 transitions, 1927 flow. Second operand has 3 states, 3 states have (on average 1017.3333333333334) internal successors, (3052), 3 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:03,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:56:03,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1016 of 1064 [2022-11-02 20:56:03,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:56:03,693 INFO L130 PetriNetUnfolder]: 31/1158 cut-off events. [2022-11-02 20:56:03,694 INFO L131 PetriNetUnfolder]: For 6/12 co-relation queries the response was YES. [2022-11-02 20:56:03,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1201 conditions, 1158 events. 31/1158 cut-off events. For 6/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3234 event pairs, 6 based on Foata normal form. 0/1020 useless extension candidates. Maximal degree in co-relation 1155. Up to 28 conditions per place. [2022-11-02 20:56:03,715 INFO L137 encePairwiseOnDemand]: 1061/1064 looper letters, 15 selfloop transitions, 2 changer transitions 0/956 dead transitions. [2022-11-02 20:56:03,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 946 places, 956 transitions, 1959 flow [2022-11-02 20:56:03,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:56:03,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:56:03,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3066 transitions. [2022-11-02 20:56:03,720 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9605263157894737 [2022-11-02 20:56:03,720 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3066 transitions. [2022-11-02 20:56:03,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3066 transitions. [2022-11-02 20:56:03,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:56:03,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3066 transitions. [2022-11-02 20:56:03,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1022.0) internal successors, (3066), 3 states have internal predecessors, (3066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:03,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:03,738 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:03,738 INFO L175 Difference]: Start difference. First operand has 945 places, 957 transitions, 1927 flow. Second operand 3 states and 3066 transitions. [2022-11-02 20:56:03,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 946 places, 956 transitions, 1959 flow [2022-11-02 20:56:03,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 944 places, 956 transitions, 1955 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:56:03,757 INFO L231 Difference]: Finished difference. Result has 944 places, 956 transitions, 1925 flow [2022-11-02 20:56:03,758 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1921, PETRI_DIFFERENCE_MINUEND_PLACES=942, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=956, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=954, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1925, PETRI_PLACES=944, PETRI_TRANSITIONS=956} [2022-11-02 20:56:03,759 INFO L287 CegarLoopForPetriNet]: 998 programPoint places, -54 predicate places. [2022-11-02 20:56:03,759 INFO L495 AbstractCegarLoop]: Abstraction has has 944 places, 956 transitions, 1925 flow [2022-11-02 20:56:03,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1017.3333333333334) internal successors, (3052), 3 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:03,761 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:56:03,761 INFO L208 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] [2022-11-02 20:56:03,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:56:03,762 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-02 20:56:03,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:03,762 INFO L85 PathProgramCache]: Analyzing trace with hash -442532862, now seen corresponding path program 1 times [2022-11-02 20:56:03,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:03,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415537006] [2022-11-02 20:56:03,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:03,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:03,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:56:03,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:03,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415537006] [2022-11-02 20:56:03,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415537006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:03,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:03,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:56:03,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310930291] [2022-11-02 20:56:03,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:03,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:56:03,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:03,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:56:03,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:56:03,813 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1013 out of 1064 [2022-11-02 20:56:03,816 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 944 places, 956 transitions, 1925 flow. Second operand has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:03,817 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:56:03,817 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1013 of 1064 [2022-11-02 20:56:03,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:56:04,338 INFO L130 PetriNetUnfolder]: 51/1409 cut-off events. [2022-11-02 20:56:04,338 INFO L131 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-11-02 20:56:04,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1485 conditions, 1409 events. 51/1409 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5495 event pairs, 18 based on Foata normal form. 0/1221 useless extension candidates. Maximal degree in co-relation 1439. Up to 55 conditions per place. [2022-11-02 20:56:04,367 INFO L137 encePairwiseOnDemand]: 1061/1064 looper letters, 18 selfloop transitions, 2 changer transitions 0/955 dead transitions. [2022-11-02 20:56:04,367 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 945 places, 955 transitions, 1963 flow [2022-11-02 20:56:04,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:56:04,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:56:04,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3060 transitions. [2022-11-02 20:56:04,374 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9586466165413534 [2022-11-02 20:56:04,374 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3060 transitions. [2022-11-02 20:56:04,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3060 transitions. [2022-11-02 20:56:04,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:56:04,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3060 transitions. [2022-11-02 20:56:04,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1020.0) internal successors, (3060), 3 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:04,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:04,387 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:04,388 INFO L175 Difference]: Start difference. First operand has 944 places, 956 transitions, 1925 flow. Second operand 3 states and 3060 transitions. [2022-11-02 20:56:04,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 945 places, 955 transitions, 1963 flow [2022-11-02 20:56:04,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 943 places, 955 transitions, 1959 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:56:04,407 INFO L231 Difference]: Finished difference. Result has 943 places, 955 transitions, 1923 flow [2022-11-02 20:56:04,409 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1919, PETRI_DIFFERENCE_MINUEND_PLACES=941, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=955, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=953, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1923, PETRI_PLACES=943, PETRI_TRANSITIONS=955} [2022-11-02 20:56:04,409 INFO L287 CegarLoopForPetriNet]: 998 programPoint places, -55 predicate places. [2022-11-02 20:56:04,410 INFO L495 AbstractCegarLoop]: Abstraction has has 943 places, 955 transitions, 1923 flow [2022-11-02 20:56:04,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:04,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:56:04,411 INFO L208 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] [2022-11-02 20:56:04,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:56:04,411 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-02 20:56:04,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:04,412 INFO L85 PathProgramCache]: Analyzing trace with hash 744894006, now seen corresponding path program 1 times [2022-11-02 20:56:04,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:04,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696636610] [2022-11-02 20:56:04,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:04,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:04,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:56:04,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:04,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696636610] [2022-11-02 20:56:04,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696636610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:04,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:04,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:56:04,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956359412] [2022-11-02 20:56:04,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:04,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:56:04,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:04,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:56:04,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:56:04,462 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1013 out of 1064 [2022-11-02 20:56:04,465 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 943 places, 955 transitions, 1923 flow. Second operand has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:04,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:56:04,465 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1013 of 1064 [2022-11-02 20:56:04,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:56:05,007 INFO L130 PetriNetUnfolder]: 51/1370 cut-off events. [2022-11-02 20:56:05,007 INFO L131 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-11-02 20:56:05,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1446 conditions, 1370 events. 51/1370 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5333 event pairs, 18 based on Foata normal form. 0/1189 useless extension candidates. Maximal degree in co-relation 1400. Up to 55 conditions per place. [2022-11-02 20:56:05,055 INFO L137 encePairwiseOnDemand]: 1061/1064 looper letters, 18 selfloop transitions, 2 changer transitions 0/954 dead transitions. [2022-11-02 20:56:05,056 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 944 places, 954 transitions, 1961 flow [2022-11-02 20:56:05,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:56:05,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:56:05,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3060 transitions. [2022-11-02 20:56:05,061 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9586466165413534 [2022-11-02 20:56:05,061 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3060 transitions. [2022-11-02 20:56:05,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3060 transitions. [2022-11-02 20:56:05,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:56:05,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3060 transitions. [2022-11-02 20:56:05,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1020.0) internal successors, (3060), 3 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:05,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:05,074 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:05,074 INFO L175 Difference]: Start difference. First operand has 943 places, 955 transitions, 1923 flow. Second operand 3 states and 3060 transitions. [2022-11-02 20:56:05,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 944 places, 954 transitions, 1961 flow [2022-11-02 20:56:05,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 942 places, 954 transitions, 1957 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:56:05,092 INFO L231 Difference]: Finished difference. Result has 942 places, 954 transitions, 1921 flow [2022-11-02 20:56:05,093 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1917, PETRI_DIFFERENCE_MINUEND_PLACES=940, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=954, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=952, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1921, PETRI_PLACES=942, PETRI_TRANSITIONS=954} [2022-11-02 20:56:05,094 INFO L287 CegarLoopForPetriNet]: 998 programPoint places, -56 predicate places. [2022-11-02 20:56:05,094 INFO L495 AbstractCegarLoop]: Abstraction has has 942 places, 954 transitions, 1921 flow [2022-11-02 20:56:05,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:05,095 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:56:05,096 INFO L208 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] [2022-11-02 20:56:05,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:56:05,096 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-02 20:56:05,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:05,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1825426286, now seen corresponding path program 1 times [2022-11-02 20:56:05,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:05,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511960756] [2022-11-02 20:56:05,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:05,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:05,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:56:05,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:05,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511960756] [2022-11-02 20:56:05,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511960756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:05,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:05,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:56:05,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752932833] [2022-11-02 20:56:05,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:05,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:56:05,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:05,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:56:05,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:56:05,159 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1016 out of 1064 [2022-11-02 20:56:05,162 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 942 places, 954 transitions, 1921 flow. Second operand has 3 states, 3 states have (on average 1017.3333333333334) internal successors, (3052), 3 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:05,162 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:56:05,162 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1016 of 1064 [2022-11-02 20:56:05,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:56:05,447 INFO L130 PetriNetUnfolder]: 27/989 cut-off events. [2022-11-02 20:56:05,447 INFO L131 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2022-11-02 20:56:05,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1028 conditions, 989 events. 27/989 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2393 event pairs, 6 based on Foata normal form. 0/883 useless extension candidates. Maximal degree in co-relation 982. Up to 27 conditions per place. [2022-11-02 20:56:05,460 INFO L137 encePairwiseOnDemand]: 1061/1064 looper letters, 14 selfloop transitions, 2 changer transitions 0/953 dead transitions. [2022-11-02 20:56:05,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 943 places, 953 transitions, 1951 flow [2022-11-02 20:56:05,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:56:05,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:56:05,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3065 transitions. [2022-11-02 20:56:05,465 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9602130325814536 [2022-11-02 20:56:05,465 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3065 transitions. [2022-11-02 20:56:05,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3065 transitions. [2022-11-02 20:56:05,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:56:05,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3065 transitions. [2022-11-02 20:56:05,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1021.6666666666666) internal successors, (3065), 3 states have internal predecessors, (3065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:05,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:05,478 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:05,479 INFO L175 Difference]: Start difference. First operand has 942 places, 954 transitions, 1921 flow. Second operand 3 states and 3065 transitions. [2022-11-02 20:56:05,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 943 places, 953 transitions, 1951 flow [2022-11-02 20:56:05,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 941 places, 953 transitions, 1947 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:56:05,499 INFO L231 Difference]: Finished difference. Result has 941 places, 953 transitions, 1919 flow [2022-11-02 20:56:05,501 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1915, PETRI_DIFFERENCE_MINUEND_PLACES=939, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=953, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=951, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1919, PETRI_PLACES=941, PETRI_TRANSITIONS=953} [2022-11-02 20:56:05,502 INFO L287 CegarLoopForPetriNet]: 998 programPoint places, -57 predicate places. [2022-11-02 20:56:05,502 INFO L495 AbstractCegarLoop]: Abstraction has has 941 places, 953 transitions, 1919 flow [2022-11-02 20:56:05,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1017.3333333333334) internal successors, (3052), 3 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:05,503 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:56:05,503 INFO L208 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] [2022-11-02 20:56:05,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:56:05,504 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-02 20:56:05,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:05,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1107019879, now seen corresponding path program 1 times [2022-11-02 20:56:05,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:05,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524367176] [2022-11-02 20:56:05,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:05,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:05,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:56:05,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:05,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524367176] [2022-11-02 20:56:05,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524367176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:05,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:05,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:56:05,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853886646] [2022-11-02 20:56:05,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:05,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:56:05,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:05,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:56:05,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:56:05,568 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1013 out of 1064 [2022-11-02 20:56:05,572 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 941 places, 953 transitions, 1919 flow. Second operand has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:05,573 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:56:05,573 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1013 of 1064 [2022-11-02 20:56:05,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:56:06,082 INFO L130 PetriNetUnfolder]: 47/1240 cut-off events. [2022-11-02 20:56:06,082 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-02 20:56:06,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1307 conditions, 1240 events. 47/1240 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3970 event pairs, 18 based on Foata normal form. 0/1083 useless extension candidates. Maximal degree in co-relation 1261. Up to 55 conditions per place. [2022-11-02 20:56:06,114 INFO L137 encePairwiseOnDemand]: 1061/1064 looper letters, 18 selfloop transitions, 2 changer transitions 0/952 dead transitions. [2022-11-02 20:56:06,114 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 942 places, 952 transitions, 1957 flow [2022-11-02 20:56:06,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:56:06,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:56:06,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3060 transitions. [2022-11-02 20:56:06,122 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9586466165413534 [2022-11-02 20:56:06,122 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3060 transitions. [2022-11-02 20:56:06,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3060 transitions. [2022-11-02 20:56:06,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:56:06,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3060 transitions. [2022-11-02 20:56:06,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1020.0) internal successors, (3060), 3 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:06,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:06,136 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:06,137 INFO L175 Difference]: Start difference. First operand has 941 places, 953 transitions, 1919 flow. Second operand 3 states and 3060 transitions. [2022-11-02 20:56:06,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 942 places, 952 transitions, 1957 flow [2022-11-02 20:56:06,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 940 places, 952 transitions, 1953 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:56:06,159 INFO L231 Difference]: Finished difference. Result has 940 places, 952 transitions, 1917 flow [2022-11-02 20:56:06,160 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1913, PETRI_DIFFERENCE_MINUEND_PLACES=938, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=952, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=950, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1917, PETRI_PLACES=940, PETRI_TRANSITIONS=952} [2022-11-02 20:56:06,161 INFO L287 CegarLoopForPetriNet]: 998 programPoint places, -58 predicate places. [2022-11-02 20:56:06,161 INFO L495 AbstractCegarLoop]: Abstraction has has 940 places, 952 transitions, 1917 flow [2022-11-02 20:56:06,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:06,162 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:56:06,163 INFO L208 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] [2022-11-02 20:56:06,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:56:06,163 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-02 20:56:06,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:06,164 INFO L85 PathProgramCache]: Analyzing trace with hash 983232768, now seen corresponding path program 1 times [2022-11-02 20:56:06,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:06,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737206632] [2022-11-02 20:56:06,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:06,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:06,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:56:06,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:06,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737206632] [2022-11-02 20:56:06,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737206632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:06,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:06,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:56:06,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379929651] [2022-11-02 20:56:06,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:06,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:56:06,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:06,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:56:06,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:56:06,236 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1013 out of 1064 [2022-11-02 20:56:06,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 940 places, 952 transitions, 1917 flow. Second operand has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:06,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:56:06,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1013 of 1064 [2022-11-02 20:56:06,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:56:06,750 INFO L130 PetriNetUnfolder]: 47/1201 cut-off events. [2022-11-02 20:56:06,750 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-02 20:56:06,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1268 conditions, 1201 events. 47/1201 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3769 event pairs, 18 based on Foata normal form. 0/1051 useless extension candidates. Maximal degree in co-relation 1222. Up to 55 conditions per place. [2022-11-02 20:56:06,782 INFO L137 encePairwiseOnDemand]: 1061/1064 looper letters, 18 selfloop transitions, 2 changer transitions 0/951 dead transitions. [2022-11-02 20:56:06,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 941 places, 951 transitions, 1955 flow [2022-11-02 20:56:06,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:56:06,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:56:06,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3060 transitions. [2022-11-02 20:56:06,789 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9586466165413534 [2022-11-02 20:56:06,789 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3060 transitions. [2022-11-02 20:56:06,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3060 transitions. [2022-11-02 20:56:06,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:56:06,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3060 transitions. [2022-11-02 20:56:06,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1020.0) internal successors, (3060), 3 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:06,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:06,805 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:06,805 INFO L175 Difference]: Start difference. First operand has 940 places, 952 transitions, 1917 flow. Second operand 3 states and 3060 transitions. [2022-11-02 20:56:06,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 941 places, 951 transitions, 1955 flow [2022-11-02 20:56:06,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 939 places, 951 transitions, 1951 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:56:06,829 INFO L231 Difference]: Finished difference. Result has 939 places, 951 transitions, 1915 flow [2022-11-02 20:56:06,831 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1911, PETRI_DIFFERENCE_MINUEND_PLACES=937, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=951, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=949, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1915, PETRI_PLACES=939, PETRI_TRANSITIONS=951} [2022-11-02 20:56:06,831 INFO L287 CegarLoopForPetriNet]: 998 programPoint places, -59 predicate places. [2022-11-02 20:56:06,832 INFO L495 AbstractCegarLoop]: Abstraction has has 939 places, 951 transitions, 1915 flow [2022-11-02 20:56:06,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:06,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:56:06,833 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:56:06,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:56:06,834 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-02 20:56:06,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:06,834 INFO L85 PathProgramCache]: Analyzing trace with hash 97933549, now seen corresponding path program 1 times [2022-11-02 20:56:06,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:06,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932860020] [2022-11-02 20:56:06,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:06,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:06,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:56:06,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:06,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932860020] [2022-11-02 20:56:06,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932860020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:06,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:06,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:56:06,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085882853] [2022-11-02 20:56:06,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:06,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:56:06,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:06,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:56:06,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:56:06,947 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1010 out of 1064 [2022-11-02 20:56:06,951 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 939 places, 951 transitions, 1915 flow. Second operand has 3 states, 3 states have (on average 1011.3333333333334) internal successors, (3034), 3 states have internal predecessors, (3034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:06,951 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:56:06,951 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1010 of 1064 [2022-11-02 20:56:06,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:56:08,072 INFO L130 PetriNetUnfolder]: 119/2598 cut-off events. [2022-11-02 20:56:08,073 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-11-02 20:56:08,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2770 conditions, 2598 events. 119/2598 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 14726 event pairs, 60 based on Foata normal form. 0/2224 useless extension candidates. Maximal degree in co-relation 2724. Up to 148 conditions per place. [2022-11-02 20:56:08,151 INFO L137 encePairwiseOnDemand]: 1061/1064 looper letters, 21 selfloop transitions, 2 changer transitions 0/950 dead transitions. [2022-11-02 20:56:08,151 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 940 places, 950 transitions, 1959 flow [2022-11-02 20:56:08,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:56:08,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:56:08,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3054 transitions. [2022-11-02 20:56:08,159 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.956766917293233 [2022-11-02 20:56:08,159 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3054 transitions. [2022-11-02 20:56:08,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3054 transitions. [2022-11-02 20:56:08,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:56:08,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3054 transitions. [2022-11-02 20:56:08,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1018.0) internal successors, (3054), 3 states have internal predecessors, (3054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:08,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:08,170 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:08,171 INFO L175 Difference]: Start difference. First operand has 939 places, 951 transitions, 1915 flow. Second operand 3 states and 3054 transitions. [2022-11-02 20:56:08,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 940 places, 950 transitions, 1959 flow [2022-11-02 20:56:08,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 938 places, 950 transitions, 1955 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:56:08,193 INFO L231 Difference]: Finished difference. Result has 938 places, 950 transitions, 1913 flow [2022-11-02 20:56:08,195 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1909, PETRI_DIFFERENCE_MINUEND_PLACES=936, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=950, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=948, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1913, PETRI_PLACES=938, PETRI_TRANSITIONS=950} [2022-11-02 20:56:08,195 INFO L287 CegarLoopForPetriNet]: 998 programPoint places, -60 predicate places. [2022-11-02 20:56:08,196 INFO L495 AbstractCegarLoop]: Abstraction has has 938 places, 950 transitions, 1913 flow [2022-11-02 20:56:08,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1011.3333333333334) internal successors, (3034), 3 states have internal predecessors, (3034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:08,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:56:08,197 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:56:08,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:56:08,197 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-02 20:56:08,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:08,198 INFO L85 PathProgramCache]: Analyzing trace with hash -905282539, now seen corresponding path program 1 times [2022-11-02 20:56:08,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:08,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141524689] [2022-11-02 20:56:08,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:08,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:09,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:56:09,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:09,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141524689] [2022-11-02 20:56:09,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141524689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:09,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:09,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:56:09,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422317211] [2022-11-02 20:56:09,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:09,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:56:09,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:09,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:56:09,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:56:09,041 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 860 out of 1064 [2022-11-02 20:56:09,045 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 938 places, 950 transitions, 1913 flow. Second operand has 6 states, 6 states have (on average 861.8333333333334) internal successors, (5171), 6 states have internal predecessors, (5171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:09,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:56:09,046 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 860 of 1064 [2022-11-02 20:56:09,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand