./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/fib_safe-5-racy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/fib_safe-5-racy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 40fcfd4444bd180f6e5508f0972ed92e70894b01f23e03dc2e761819c6d5a859 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:19:42,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:19:42,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:19:42,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:19:42,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:19:42,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:19:42,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:19:42,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:19:42,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:19:42,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:19:42,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:19:42,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:19:42,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:19:42,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:19:42,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:19:42,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:19:42,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:19:42,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:19:42,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:19:42,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:19:42,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:19:42,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:19:42,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:19:42,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:19:42,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:19:42,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:19:42,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:19:42,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:19:42,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:19:42,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:19:42,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:19:42,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:19:42,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:19:42,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:19:42,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:19:42,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:19:42,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:19:42,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:19:42,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:19:42,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:19:42,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:19:42,147 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:19:42,215 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:19:42,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:19:42,220 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:19:42,220 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:19:42,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:19:42,221 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:19:42,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:19:42,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:19:42,223 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:19:42,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:19:42,224 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:19:42,224 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:19:42,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:19:42,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:19:42,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:19:42,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:19:42,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:19:42,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:19:42,226 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:19:42,226 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:19:42,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:19:42,227 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:19:42,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:19:42,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:19:42,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:19:42,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:19:42,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:19:42,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:19:42,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:19:42,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:19:42,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:19:42,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:19:42,230 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:19:42,230 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:19:42,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:19:42,231 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_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40fcfd4444bd180f6e5508f0972ed92e70894b01f23e03dc2e761819c6d5a859 [2022-11-16 12:19:42,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:19:42,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:19:42,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:19:42,550 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:19:42,554 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:19:42,556 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread/fib_safe-5-racy.i [2022-11-16 12:19:42,637 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/data/a161eb7a7/4c04df8d67124e20b74788398ab37042/FLAGd879deb21 [2022-11-16 12:19:43,231 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:19:43,236 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/sv-benchmarks/c/pthread/fib_safe-5-racy.i [2022-11-16 12:19:43,263 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/data/a161eb7a7/4c04df8d67124e20b74788398ab37042/FLAGd879deb21 [2022-11-16 12:19:43,500 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/data/a161eb7a7/4c04df8d67124e20b74788398ab37042 [2022-11-16 12:19:43,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:19:43,506 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:19:43,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:19:43,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:19:43,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:19:43,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:19:43" (1/1) ... [2022-11-16 12:19:43,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31127e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:43, skipping insertion in model container [2022-11-16 12:19:43,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:19:43" (1/1) ... [2022-11-16 12:19:43,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:19:43,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:19:44,114 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/sv-benchmarks/c/pthread/fib_safe-5-racy.i[30813,30826] [2022-11-16 12:19:44,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:19:44,134 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:19:44,183 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/sv-benchmarks/c/pthread/fib_safe-5-racy.i[30813,30826] [2022-11-16 12:19:44,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:19:44,220 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:19:44,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:44 WrapperNode [2022-11-16 12:19:44,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:19:44,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:19:44,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:19:44,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:19:44,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:44" (1/1) ... [2022-11-16 12:19:44,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:44" (1/1) ... [2022-11-16 12:19:44,312 INFO L138 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 122 [2022-11-16 12:19:44,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:19:44,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:19:44,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:19:44,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:19:44,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:44" (1/1) ... [2022-11-16 12:19:44,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:44" (1/1) ... [2022-11-16 12:19:44,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:44" (1/1) ... [2022-11-16 12:19:44,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:44" (1/1) ... [2022-11-16 12:19:44,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:44" (1/1) ... [2022-11-16 12:19:44,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:44" (1/1) ... [2022-11-16 12:19:44,366 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:44" (1/1) ... [2022-11-16 12:19:44,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:44" (1/1) ... [2022-11-16 12:19:44,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:19:44,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:19:44,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:19:44,371 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:19:44,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:44" (1/1) ... [2022-11-16 12:19:44,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:19:44,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:19:44,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:19:44,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:19:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-16 12:19:44,463 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-16 12:19:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-16 12:19:44,463 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-16 12:19:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:19:44,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:19:44,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:19:44,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:19:44,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:19:44,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:19:44,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:19:44,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:19:44,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:19:44,466 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:19:44,648 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:19:44,650 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:19:45,038 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:19:45,125 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:19:45,130 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-16 12:19:45,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:19:45 BoogieIcfgContainer [2022-11-16 12:19:45,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:19:45,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:19:45,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:19:45,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:19:45,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:19:43" (1/3) ... [2022-11-16 12:19:45,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754b4f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:19:45, skipping insertion in model container [2022-11-16 12:19:45,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:44" (2/3) ... [2022-11-16 12:19:45,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754b4f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:19:45, skipping insertion in model container [2022-11-16 12:19:45,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:19:45" (3/3) ... [2022-11-16 12:19:45,144 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-5-racy.i [2022-11-16 12:19:45,153 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:19:45,164 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:19:45,165 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-16 12:19:45,165 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:19:45,276 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:19:45,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 193 transitions, 396 flow [2022-11-16 12:19:45,407 INFO L130 PetriNetUnfolder]: 8/191 cut-off events. [2022-11-16 12:19:45,407 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:19:45,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 191 events. 8/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 366 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 159. Up to 2 conditions per place. [2022-11-16 12:19:45,417 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 193 transitions, 396 flow [2022-11-16 12:19:45,427 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 191 transitions, 388 flow [2022-11-16 12:19:45,438 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:19:45,451 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;@43fb6ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:19:45,451 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-11-16 12:19:45,467 INFO L130 PetriNetUnfolder]: 0/26 cut-off events. [2022-11-16 12:19:45,471 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:19:45,471 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:45,472 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:45,473 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:45,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:45,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1641346029, now seen corresponding path program 1 times [2022-11-16 12:19:45,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:45,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872494317] [2022-11-16 12:19:45,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:45,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:45,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:45,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:45,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872494317] [2022-11-16 12:19:45,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872494317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:45,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:45,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:19:45,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983102395] [2022-11-16 12:19:45,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:45,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:19:45,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:45,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:19:45,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:19:45,729 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 193 [2022-11-16 12:19:45,732 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 191 transitions, 388 flow. Second operand has 2 states, 2 states have (on average 174.5) internal successors, (349), 2 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:45,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:45,733 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 193 [2022-11-16 12:19:45,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:45,843 INFO L130 PetriNetUnfolder]: 9/295 cut-off events. [2022-11-16 12:19:45,843 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 12:19:45,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 295 events. 9/295 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 941 event pairs, 2 based on Foata normal form. 10/255 useless extension candidates. Maximal degree in co-relation 274. Up to 11 conditions per place. [2022-11-16 12:19:45,851 INFO L137 encePairwiseOnDemand]: 181/193 looper letters, 6 selfloop transitions, 0 changer transitions 0/178 dead transitions. [2022-11-16 12:19:45,851 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 178 transitions, 374 flow [2022-11-16 12:19:45,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:19:45,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 12:19:45,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 366 transitions. [2022-11-16 12:19:45,877 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9481865284974094 [2022-11-16 12:19:45,878 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 366 transitions. [2022-11-16 12:19:45,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 366 transitions. [2022-11-16 12:19:45,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:45,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 366 transitions. [2022-11-16 12:19:45,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 183.0) internal successors, (366), 2 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:45,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:45,902 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:45,904 INFO L175 Difference]: Start difference. First operand has 190 places, 191 transitions, 388 flow. Second operand 2 states and 366 transitions. [2022-11-16 12:19:45,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 178 transitions, 374 flow [2022-11-16 12:19:45,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 178 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:45,915 INFO L231 Difference]: Finished difference. Result has 180 places, 178 transitions, 360 flow [2022-11-16 12:19:45,918 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=360, PETRI_PLACES=180, PETRI_TRANSITIONS=178} [2022-11-16 12:19:45,925 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -10 predicate places. [2022-11-16 12:19:45,926 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 178 transitions, 360 flow [2022-11-16 12:19:45,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 174.5) internal successors, (349), 2 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:45,927 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:45,927 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:45,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:19:45,928 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:45,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:45,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1855578032, now seen corresponding path program 1 times [2022-11-16 12:19:45,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:45,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657217799] [2022-11-16 12:19:45,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:45,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:46,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:46,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:46,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657217799] [2022-11-16 12:19:46,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657217799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:46,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:46,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:46,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635692091] [2022-11-16 12:19:46,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:46,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:46,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:46,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:46,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:46,081 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 193 [2022-11-16 12:19:46,082 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 178 transitions, 360 flow. Second operand has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,082 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:46,082 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 193 [2022-11-16 12:19:46,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:46,212 INFO L130 PetriNetUnfolder]: 48/393 cut-off events. [2022-11-16 12:19:46,212 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:19:46,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 514 conditions, 393 events. 48/393 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1816 event pairs, 14 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 511. Up to 77 conditions per place. [2022-11-16 12:19:46,226 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 19 selfloop transitions, 2 changer transitions 0/179 dead transitions. [2022-11-16 12:19:46,226 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 179 transitions, 406 flow [2022-11-16 12:19:46,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:46,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:46,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 502 transitions. [2022-11-16 12:19:46,229 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8670120898100173 [2022-11-16 12:19:46,229 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 502 transitions. [2022-11-16 12:19:46,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 502 transitions. [2022-11-16 12:19:46,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:46,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 502 transitions. [2022-11-16 12:19:46,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,237 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,237 INFO L175 Difference]: Start difference. First operand has 180 places, 178 transitions, 360 flow. Second operand 3 states and 502 transitions. [2022-11-16 12:19:46,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 179 transitions, 406 flow [2022-11-16 12:19:46,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 179 transitions, 406 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:19:46,244 INFO L231 Difference]: Finished difference. Result has 181 places, 177 transitions, 362 flow [2022-11-16 12:19:46,245 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=362, PETRI_PLACES=181, PETRI_TRANSITIONS=177} [2022-11-16 12:19:46,246 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -9 predicate places. [2022-11-16 12:19:46,246 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 177 transitions, 362 flow [2022-11-16 12:19:46,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,247 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:46,248 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:46,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:19:46,248 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:46,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:46,250 INFO L85 PathProgramCache]: Analyzing trace with hash -998404074, now seen corresponding path program 1 times [2022-11-16 12:19:46,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:46,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020793528] [2022-11-16 12:19:46,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:46,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:46,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:46,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:46,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020793528] [2022-11-16 12:19:46,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020793528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:46,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:46,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:46,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131385540] [2022-11-16 12:19:46,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:46,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:46,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:46,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:46,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:46,379 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 193 [2022-11-16 12:19:46,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 177 transitions, 362 flow. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,380 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:46,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 193 [2022-11-16 12:19:46,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:46,464 INFO L130 PetriNetUnfolder]: 34/261 cut-off events. [2022-11-16 12:19:46,464 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 12:19:46,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 261 events. 34/261 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 977 event pairs, 11 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 354. Up to 34 conditions per place. [2022-11-16 12:19:46,470 INFO L137 encePairwiseOnDemand]: 189/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/177 dead transitions. [2022-11-16 12:19:46,470 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 177 transitions, 398 flow [2022-11-16 12:19:46,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:46,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:46,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 505 transitions. [2022-11-16 12:19:46,472 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8721934369602763 [2022-11-16 12:19:46,472 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 505 transitions. [2022-11-16 12:19:46,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 505 transitions. [2022-11-16 12:19:46,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:46,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 505 transitions. [2022-11-16 12:19:46,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,477 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,477 INFO L175 Difference]: Start difference. First operand has 181 places, 177 transitions, 362 flow. Second operand 3 states and 505 transitions. [2022-11-16 12:19:46,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 177 transitions, 398 flow [2022-11-16 12:19:46,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 177 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:46,482 INFO L231 Difference]: Finished difference. Result has 179 places, 175 transitions, 358 flow [2022-11-16 12:19:46,482 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=179, PETRI_TRANSITIONS=175} [2022-11-16 12:19:46,483 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -11 predicate places. [2022-11-16 12:19:46,483 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 175 transitions, 358 flow [2022-11-16 12:19:46,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,484 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:46,484 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:46,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:19:46,484 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:46,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:46,485 INFO L85 PathProgramCache]: Analyzing trace with hash 2056557989, now seen corresponding path program 1 times [2022-11-16 12:19:46,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:46,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589829217] [2022-11-16 12:19:46,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:46,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:46,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:46,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:46,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589829217] [2022-11-16 12:19:46,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589829217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:46,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:46,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:46,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390958792] [2022-11-16 12:19:46,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:46,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:46,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:46,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:46,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:46,585 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 193 [2022-11-16 12:19:46,586 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 175 transitions, 358 flow. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,586 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:46,587 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 193 [2022-11-16 12:19:46,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:46,704 INFO L130 PetriNetUnfolder]: 22/303 cut-off events. [2022-11-16 12:19:46,704 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:19:46,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 303 events. 22/303 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1167 event pairs, 13 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 360. Up to 44 conditions per place. [2022-11-16 12:19:46,709 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 18 selfloop transitions, 2 changer transitions 0/175 dead transitions. [2022-11-16 12:19:46,710 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 175 transitions, 398 flow [2022-11-16 12:19:46,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:46,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:46,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 501 transitions. [2022-11-16 12:19:46,712 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8652849740932642 [2022-11-16 12:19:46,712 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 501 transitions. [2022-11-16 12:19:46,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 501 transitions. [2022-11-16 12:19:46,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:46,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 501 transitions. [2022-11-16 12:19:46,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,720 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,720 INFO L175 Difference]: Start difference. First operand has 179 places, 175 transitions, 358 flow. Second operand 3 states and 501 transitions. [2022-11-16 12:19:46,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 175 transitions, 398 flow [2022-11-16 12:19:46,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 175 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:46,727 INFO L231 Difference]: Finished difference. Result has 178 places, 174 transitions, 356 flow [2022-11-16 12:19:46,727 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=356, PETRI_PLACES=178, PETRI_TRANSITIONS=174} [2022-11-16 12:19:46,729 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -12 predicate places. [2022-11-16 12:19:46,735 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 174 transitions, 356 flow [2022-11-16 12:19:46,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,738 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:46,738 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:46,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:19:46,739 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:46,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:46,740 INFO L85 PathProgramCache]: Analyzing trace with hash -788885921, now seen corresponding path program 1 times [2022-11-16 12:19:46,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:46,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305800495] [2022-11-16 12:19:46,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:46,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:46,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:46,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:46,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:46,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305800495] [2022-11-16 12:19:46,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305800495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:46,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:46,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:46,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523018520] [2022-11-16 12:19:46,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:46,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:46,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:46,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:46,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:46,828 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 193 [2022-11-16 12:19:46,829 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 174 transitions, 356 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,829 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:46,829 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 193 [2022-11-16 12:19:46,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:46,900 INFO L130 PetriNetUnfolder]: 18/295 cut-off events. [2022-11-16 12:19:46,900 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:19:46,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 295 events. 18/295 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1109 event pairs, 6 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 342. Up to 23 conditions per place. [2022-11-16 12:19:46,904 INFO L137 encePairwiseOnDemand]: 189/193 looper letters, 14 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-11-16 12:19:46,905 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 173 transitions, 386 flow [2022-11-16 12:19:46,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:46,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:46,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2022-11-16 12:19:46,907 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8704663212435233 [2022-11-16 12:19:46,907 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 504 transitions. [2022-11-16 12:19:46,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 504 transitions. [2022-11-16 12:19:46,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:46,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 504 transitions. [2022-11-16 12:19:46,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,911 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,912 INFO L175 Difference]: Start difference. First operand has 178 places, 174 transitions, 356 flow. Second operand 3 states and 504 transitions. [2022-11-16 12:19:46,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 173 transitions, 386 flow [2022-11-16 12:19:46,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 173 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:46,916 INFO L231 Difference]: Finished difference. Result has 176 places, 172 transitions, 352 flow [2022-11-16 12:19:46,917 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=176, PETRI_TRANSITIONS=172} [2022-11-16 12:19:46,921 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -14 predicate places. [2022-11-16 12:19:46,922 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 172 transitions, 352 flow [2022-11-16 12:19:46,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,924 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:46,924 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:46,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:19:46,924 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:46,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:46,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1643073106, now seen corresponding path program 1 times [2022-11-16 12:19:46,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:46,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318218531] [2022-11-16 12:19:46,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:46,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:46,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:46,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:46,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318218531] [2022-11-16 12:19:46,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318218531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:46,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:46,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:46,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907158660] [2022-11-16 12:19:46,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:46,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:46,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:46,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:46,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:46,998 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 193 [2022-11-16 12:19:46,999 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 172 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:46,999 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:46,999 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 193 [2022-11-16 12:19:46,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:47,114 INFO L130 PetriNetUnfolder]: 69/506 cut-off events. [2022-11-16 12:19:47,115 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:19:47,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 642 conditions, 506 events. 69/506 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2797 event pairs, 50 based on Foata normal form. 0/429 useless extension candidates. Maximal degree in co-relation 638. Up to 107 conditions per place. [2022-11-16 12:19:47,122 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 20 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-11-16 12:19:47,123 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 173 transitions, 398 flow [2022-11-16 12:19:47,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:47,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:47,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 500 transitions. [2022-11-16 12:19:47,125 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8635578583765112 [2022-11-16 12:19:47,125 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 500 transitions. [2022-11-16 12:19:47,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 500 transitions. [2022-11-16 12:19:47,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:47,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 500 transitions. [2022-11-16 12:19:47,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,130 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,130 INFO L175 Difference]: Start difference. First operand has 176 places, 172 transitions, 352 flow. Second operand 3 states and 500 transitions. [2022-11-16 12:19:47,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 173 transitions, 398 flow [2022-11-16 12:19:47,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 173 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:47,135 INFO L231 Difference]: Finished difference. Result has 175 places, 171 transitions, 350 flow [2022-11-16 12:19:47,136 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=350, PETRI_PLACES=175, PETRI_TRANSITIONS=171} [2022-11-16 12:19:47,139 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -15 predicate places. [2022-11-16 12:19:47,139 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 171 transitions, 350 flow [2022-11-16 12:19:47,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,140 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:47,140 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:47,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:19:47,141 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:47,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:47,142 INFO L85 PathProgramCache]: Analyzing trace with hash 866203801, now seen corresponding path program 1 times [2022-11-16 12:19:47,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:47,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101803615] [2022-11-16 12:19:47,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:47,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:47,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:47,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:47,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101803615] [2022-11-16 12:19:47,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101803615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:47,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:47,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:47,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185570318] [2022-11-16 12:19:47,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:47,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:47,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:47,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:47,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:47,242 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 193 [2022-11-16 12:19:47,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 171 transitions, 350 flow. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:47,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 193 [2022-11-16 12:19:47,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:47,332 INFO L130 PetriNetUnfolder]: 26/228 cut-off events. [2022-11-16 12:19:47,332 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:19:47,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 228 events. 26/228 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 805 event pairs, 16 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 312. Up to 49 conditions per place. [2022-11-16 12:19:47,336 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 16 selfloop transitions, 2 changer transitions 0/172 dead transitions. [2022-11-16 12:19:47,336 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 172 transitions, 390 flow [2022-11-16 12:19:47,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:47,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:47,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2022-11-16 12:19:47,339 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8618307426597582 [2022-11-16 12:19:47,339 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 499 transitions. [2022-11-16 12:19:47,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 499 transitions. [2022-11-16 12:19:47,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:47,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 499 transitions. [2022-11-16 12:19:47,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,344 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,345 INFO L175 Difference]: Start difference. First operand has 175 places, 171 transitions, 350 flow. Second operand 3 states and 499 transitions. [2022-11-16 12:19:47,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 172 transitions, 390 flow [2022-11-16 12:19:47,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 172 transitions, 386 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:47,349 INFO L231 Difference]: Finished difference. Result has 174 places, 170 transitions, 348 flow [2022-11-16 12:19:47,350 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=174, PETRI_TRANSITIONS=170} [2022-11-16 12:19:47,350 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -16 predicate places. [2022-11-16 12:19:47,351 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 170 transitions, 348 flow [2022-11-16 12:19:47,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,351 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:47,351 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:47,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:19:47,352 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:47,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:47,353 INFO L85 PathProgramCache]: Analyzing trace with hash 951695720, now seen corresponding path program 1 times [2022-11-16 12:19:47,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:47,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65434996] [2022-11-16 12:19:47,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:47,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:47,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:47,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:47,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65434996] [2022-11-16 12:19:47,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65434996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:47,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:47,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:47,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031245420] [2022-11-16 12:19:47,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:47,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:47,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:47,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:47,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:47,415 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 193 [2022-11-16 12:19:47,415 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 170 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,416 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:47,416 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 193 [2022-11-16 12:19:47,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:47,530 INFO L130 PetriNetUnfolder]: 49/471 cut-off events. [2022-11-16 12:19:47,530 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:19:47,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 471 events. 49/471 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2392 event pairs, 22 based on Foata normal form. 0/405 useless extension candidates. Maximal degree in co-relation 561. Up to 51 conditions per place. [2022-11-16 12:19:47,536 INFO L137 encePairwiseOnDemand]: 189/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/170 dead transitions. [2022-11-16 12:19:47,537 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 170 transitions, 382 flow [2022-11-16 12:19:47,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:47,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:47,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 505 transitions. [2022-11-16 12:19:47,539 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8721934369602763 [2022-11-16 12:19:47,539 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 505 transitions. [2022-11-16 12:19:47,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 505 transitions. [2022-11-16 12:19:47,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:47,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 505 transitions. [2022-11-16 12:19:47,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,542 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,542 INFO L175 Difference]: Start difference. First operand has 174 places, 170 transitions, 348 flow. Second operand 3 states and 505 transitions. [2022-11-16 12:19:47,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 170 transitions, 382 flow [2022-11-16 12:19:47,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 170 transitions, 378 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:47,546 INFO L231 Difference]: Finished difference. Result has 172 places, 168 transitions, 344 flow [2022-11-16 12:19:47,546 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=172, PETRI_TRANSITIONS=168} [2022-11-16 12:19:47,548 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -18 predicate places. [2022-11-16 12:19:47,548 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 168 transitions, 344 flow [2022-11-16 12:19:47,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,549 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:47,549 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:47,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:19:47,549 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:47,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:47,550 INFO L85 PathProgramCache]: Analyzing trace with hash 888426671, now seen corresponding path program 1 times [2022-11-16 12:19:47,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:47,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518398830] [2022-11-16 12:19:47,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:47,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:47,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:47,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:47,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518398830] [2022-11-16 12:19:47,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518398830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:47,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:47,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:47,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145524918] [2022-11-16 12:19:47,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:47,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:47,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:47,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:47,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:47,599 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 193 [2022-11-16 12:19:47,599 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 168 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,600 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:47,600 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 193 [2022-11-16 12:19:47,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:47,690 INFO L130 PetriNetUnfolder]: 49/491 cut-off events. [2022-11-16 12:19:47,690 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:19:47,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 585 conditions, 491 events. 49/491 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2325 event pairs, 14 based on Foata normal form. 0/425 useless extension candidates. Maximal degree in co-relation 581. Up to 41 conditions per place. [2022-11-16 12:19:47,719 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 12 selfloop transitions, 3 changer transitions 0/168 dead transitions. [2022-11-16 12:19:47,719 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 168 transitions, 374 flow [2022-11-16 12:19:47,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:47,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:47,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2022-11-16 12:19:47,722 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8842832469775475 [2022-11-16 12:19:47,722 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 512 transitions. [2022-11-16 12:19:47,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 512 transitions. [2022-11-16 12:19:47,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:47,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 512 transitions. [2022-11-16 12:19:47,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,725 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,725 INFO L175 Difference]: Start difference. First operand has 172 places, 168 transitions, 344 flow. Second operand 3 states and 512 transitions. [2022-11-16 12:19:47,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 168 transitions, 374 flow [2022-11-16 12:19:47,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 168 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:47,729 INFO L231 Difference]: Finished difference. Result has 170 places, 166 transitions, 342 flow [2022-11-16 12:19:47,729 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=170, PETRI_TRANSITIONS=166} [2022-11-16 12:19:47,730 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -20 predicate places. [2022-11-16 12:19:47,730 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 166 transitions, 342 flow [2022-11-16 12:19:47,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,731 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:47,731 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:47,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:19:47,731 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:47,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:47,732 INFO L85 PathProgramCache]: Analyzing trace with hash -920445698, now seen corresponding path program 1 times [2022-11-16 12:19:47,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:47,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274229615] [2022-11-16 12:19:47,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:47,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:47,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:47,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:47,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:47,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274229615] [2022-11-16 12:19:47,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274229615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:47,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:47,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:47,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173169834] [2022-11-16 12:19:47,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:47,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:47,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:47,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:47,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:47,804 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 193 [2022-11-16 12:19:47,805 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 166 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:47,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 193 [2022-11-16 12:19:47,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:47,889 INFO L130 PetriNetUnfolder]: 47/481 cut-off events. [2022-11-16 12:19:47,889 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:19:47,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 481 events. 47/481 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1911 event pairs, 14 based on Foata normal form. 0/425 useless extension candidates. Maximal degree in co-relation 573. Up to 41 conditions per place. [2022-11-16 12:19:47,894 INFO L137 encePairwiseOnDemand]: 189/193 looper letters, 13 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2022-11-16 12:19:47,894 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 166 transitions, 372 flow [2022-11-16 12:19:47,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:47,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:47,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2022-11-16 12:19:47,896 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8842832469775475 [2022-11-16 12:19:47,896 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 512 transitions. [2022-11-16 12:19:47,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 512 transitions. [2022-11-16 12:19:47,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:47,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 512 transitions. [2022-11-16 12:19:47,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,900 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,900 INFO L175 Difference]: Start difference. First operand has 170 places, 166 transitions, 342 flow. Second operand 3 states and 512 transitions. [2022-11-16 12:19:47,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 166 transitions, 372 flow [2022-11-16 12:19:47,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 166 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:47,904 INFO L231 Difference]: Finished difference. Result has 168 places, 164 transitions, 336 flow [2022-11-16 12:19:47,904 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=168, PETRI_TRANSITIONS=164} [2022-11-16 12:19:47,905 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -22 predicate places. [2022-11-16 12:19:47,905 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 164 transitions, 336 flow [2022-11-16 12:19:47,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,906 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:47,906 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:47,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:19:47,906 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:47,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:47,907 INFO L85 PathProgramCache]: Analyzing trace with hash -300110450, now seen corresponding path program 1 times [2022-11-16 12:19:47,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:47,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057433857] [2022-11-16 12:19:47,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:47,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:47,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:47,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:47,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057433857] [2022-11-16 12:19:47,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057433857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:47,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:47,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:47,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539109005] [2022-11-16 12:19:47,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:47,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:47,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:47,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:47,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:47,945 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 193 [2022-11-16 12:19:47,946 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 164 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:47,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 193 [2022-11-16 12:19:47,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:48,004 INFO L130 PetriNetUnfolder]: 18/278 cut-off events. [2022-11-16 12:19:48,005 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:19:48,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 278 events. 18/278 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 967 event pairs, 9 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 327. Up to 34 conditions per place. [2022-11-16 12:19:48,008 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2022-11-16 12:19:48,009 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 164 transitions, 370 flow [2022-11-16 12:19:48,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:48,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:48,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 498 transitions. [2022-11-16 12:19:48,011 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8601036269430051 [2022-11-16 12:19:48,011 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 498 transitions. [2022-11-16 12:19:48,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 498 transitions. [2022-11-16 12:19:48,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:48,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 498 transitions. [2022-11-16 12:19:48,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,014 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,014 INFO L175 Difference]: Start difference. First operand has 168 places, 164 transitions, 336 flow. Second operand 3 states and 498 transitions. [2022-11-16 12:19:48,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 164 transitions, 370 flow [2022-11-16 12:19:48,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 164 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:48,018 INFO L231 Difference]: Finished difference. Result has 167 places, 163 transitions, 334 flow [2022-11-16 12:19:48,018 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=167, PETRI_TRANSITIONS=163} [2022-11-16 12:19:48,019 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -23 predicate places. [2022-11-16 12:19:48,019 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 163 transitions, 334 flow [2022-11-16 12:19:48,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,019 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:48,020 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:48,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:19:48,020 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:48,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:48,020 INFO L85 PathProgramCache]: Analyzing trace with hash 420262307, now seen corresponding path program 1 times [2022-11-16 12:19:48,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:48,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594817405] [2022-11-16 12:19:48,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:48,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:48,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:48,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:48,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594817405] [2022-11-16 12:19:48,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594817405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:48,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:48,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:48,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208354518] [2022-11-16 12:19:48,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:48,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:48,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:48,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:48,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:48,060 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 193 [2022-11-16 12:19:48,061 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 163 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,061 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:48,061 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 193 [2022-11-16 12:19:48,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:48,139 INFO L130 PetriNetUnfolder]: 45/451 cut-off events. [2022-11-16 12:19:48,140 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:19:48,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 451 events. 45/451 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2277 event pairs, 26 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 535. Up to 59 conditions per place. [2022-11-16 12:19:48,144 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 14 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2022-11-16 12:19:48,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 164 transitions, 368 flow [2022-11-16 12:19:48,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:48,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:48,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2022-11-16 12:19:48,147 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8842832469775475 [2022-11-16 12:19:48,147 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 512 transitions. [2022-11-16 12:19:48,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 512 transitions. [2022-11-16 12:19:48,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:48,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 512 transitions. [2022-11-16 12:19:48,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,150 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,151 INFO L175 Difference]: Start difference. First operand has 167 places, 163 transitions, 334 flow. Second operand 3 states and 512 transitions. [2022-11-16 12:19:48,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 164 transitions, 368 flow [2022-11-16 12:19:48,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 164 transitions, 364 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:48,154 INFO L231 Difference]: Finished difference. Result has 166 places, 162 transitions, 332 flow [2022-11-16 12:19:48,155 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=166, PETRI_TRANSITIONS=162} [2022-11-16 12:19:48,155 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -24 predicate places. [2022-11-16 12:19:48,155 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 162 transitions, 332 flow [2022-11-16 12:19:48,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,156 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:48,156 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:48,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:19:48,156 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:48,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:48,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1282189299, now seen corresponding path program 1 times [2022-11-16 12:19:48,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:48,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061319413] [2022-11-16 12:19:48,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:48,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:48,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:48,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:48,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061319413] [2022-11-16 12:19:48,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061319413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:48,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:48,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:19:48,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482760643] [2022-11-16 12:19:48,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:48,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:48,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:48,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:48,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:48,229 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 193 [2022-11-16 12:19:48,230 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 162 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,230 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:48,230 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 193 [2022-11-16 12:19:48,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:48,327 INFO L130 PetriNetUnfolder]: 41/577 cut-off events. [2022-11-16 12:19:48,327 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:19:48,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 674 conditions, 577 events. 41/577 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2594 event pairs, 14 based on Foata normal form. 0/523 useless extension candidates. Maximal degree in co-relation 670. Up to 37 conditions per place. [2022-11-16 12:19:48,333 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/167 dead transitions. [2022-11-16 12:19:48,333 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 167 transitions, 376 flow [2022-11-16 12:19:48,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:48,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:48,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 522 transitions. [2022-11-16 12:19:48,335 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9015544041450777 [2022-11-16 12:19:48,335 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 522 transitions. [2022-11-16 12:19:48,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 522 transitions. [2022-11-16 12:19:48,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:48,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 522 transitions. [2022-11-16 12:19:48,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,339 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,339 INFO L175 Difference]: Start difference. First operand has 166 places, 162 transitions, 332 flow. Second operand 3 states and 522 transitions. [2022-11-16 12:19:48,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 167 transitions, 376 flow [2022-11-16 12:19:48,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 167 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:48,343 INFO L231 Difference]: Finished difference. Result has 167 places, 163 transitions, 340 flow [2022-11-16 12:19:48,343 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=167, PETRI_TRANSITIONS=163} [2022-11-16 12:19:48,344 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -23 predicate places. [2022-11-16 12:19:48,344 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 163 transitions, 340 flow [2022-11-16 12:19:48,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,345 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:48,345 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:48,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:19:48,345 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:48,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:48,346 INFO L85 PathProgramCache]: Analyzing trace with hash -16362515, now seen corresponding path program 1 times [2022-11-16 12:19:48,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:48,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751554446] [2022-11-16 12:19:48,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:48,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:48,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:48,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:48,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751554446] [2022-11-16 12:19:48,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751554446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:48,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:48,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:48,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812200976] [2022-11-16 12:19:48,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:48,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:48,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:48,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:48,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:48,384 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 193 [2022-11-16 12:19:48,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 163 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:48,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 193 [2022-11-16 12:19:48,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:48,492 INFO L130 PetriNetUnfolder]: 73/603 cut-off events. [2022-11-16 12:19:48,492 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:19:48,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 761 conditions, 603 events. 73/603 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2984 event pairs, 46 based on Foata normal form. 0/561 useless extension candidates. Maximal degree in co-relation 756. Up to 99 conditions per place. [2022-11-16 12:19:48,499 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2022-11-16 12:19:48,499 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 164 transitions, 376 flow [2022-11-16 12:19:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:48,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:48,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2022-11-16 12:19:48,501 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8704663212435233 [2022-11-16 12:19:48,501 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 504 transitions. [2022-11-16 12:19:48,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 504 transitions. [2022-11-16 12:19:48,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:48,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 504 transitions. [2022-11-16 12:19:48,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,504 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,504 INFO L175 Difference]: Start difference. First operand has 167 places, 163 transitions, 340 flow. Second operand 3 states and 504 transitions. [2022-11-16 12:19:48,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 164 transitions, 376 flow [2022-11-16 12:19:48,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 164 transitions, 374 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:19:48,508 INFO L231 Difference]: Finished difference. Result has 167 places, 162 transitions, 340 flow [2022-11-16 12:19:48,509 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=167, PETRI_TRANSITIONS=162} [2022-11-16 12:19:48,509 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -23 predicate places. [2022-11-16 12:19:48,509 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 162 transitions, 340 flow [2022-11-16 12:19:48,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,510 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:48,510 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:48,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:19:48,510 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:48,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:48,511 INFO L85 PathProgramCache]: Analyzing trace with hash -2123929210, now seen corresponding path program 1 times [2022-11-16 12:19:48,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:48,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957560138] [2022-11-16 12:19:48,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:48,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:48,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:48,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:48,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957560138] [2022-11-16 12:19:48,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957560138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:48,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:48,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:48,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273167918] [2022-11-16 12:19:48,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:48,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:48,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:48,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:48,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:48,549 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 193 [2022-11-16 12:19:48,550 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 162 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,550 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:48,550 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 193 [2022-11-16 12:19:48,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:48,656 INFO L130 PetriNetUnfolder]: 61/583 cut-off events. [2022-11-16 12:19:48,656 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:19:48,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 583 events. 61/583 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2566 event pairs, 18 based on Foata normal form. 0/543 useless extension candidates. Maximal degree in co-relation 708. Up to 51 conditions per place. [2022-11-16 12:19:48,662 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 11 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2022-11-16 12:19:48,662 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 164 transitions, 370 flow [2022-11-16 12:19:48,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:48,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:48,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2022-11-16 12:19:48,664 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8946459412780656 [2022-11-16 12:19:48,664 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 518 transitions. [2022-11-16 12:19:48,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 518 transitions. [2022-11-16 12:19:48,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:48,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 518 transitions. [2022-11-16 12:19:48,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,668 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,668 INFO L175 Difference]: Start difference. First operand has 167 places, 162 transitions, 340 flow. Second operand 3 states and 518 transitions. [2022-11-16 12:19:48,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 164 transitions, 370 flow [2022-11-16 12:19:48,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 164 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:48,672 INFO L231 Difference]: Finished difference. Result has 167 places, 162 transitions, 344 flow [2022-11-16 12:19:48,672 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=167, PETRI_TRANSITIONS=162} [2022-11-16 12:19:48,673 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -23 predicate places. [2022-11-16 12:19:48,673 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 162 transitions, 344 flow [2022-11-16 12:19:48,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,673 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:48,673 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:48,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:19:48,674 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:48,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:48,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1166233106, now seen corresponding path program 1 times [2022-11-16 12:19:48,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:48,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897604991] [2022-11-16 12:19:48,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:48,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:48,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:48,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:48,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897604991] [2022-11-16 12:19:48,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897604991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:48,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:48,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:48,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274495338] [2022-11-16 12:19:48,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:48,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:48,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:48,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:48,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:48,714 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 193 [2022-11-16 12:19:48,714 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 162 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,714 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:48,714 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 193 [2022-11-16 12:19:48,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:48,819 INFO L130 PetriNetUnfolder]: 81/595 cut-off events. [2022-11-16 12:19:48,819 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-16 12:19:48,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 595 events. 81/595 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3008 event pairs, 54 based on Foata normal form. 0/569 useless extension candidates. Maximal degree in co-relation 780. Up to 115 conditions per place. [2022-11-16 12:19:48,826 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/163 dead transitions. [2022-11-16 12:19:48,826 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 163 transitions, 380 flow [2022-11-16 12:19:48,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:48,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:48,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2022-11-16 12:19:48,828 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8704663212435233 [2022-11-16 12:19:48,828 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 504 transitions. [2022-11-16 12:19:48,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 504 transitions. [2022-11-16 12:19:48,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:48,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 504 transitions. [2022-11-16 12:19:48,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,831 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,831 INFO L175 Difference]: Start difference. First operand has 167 places, 162 transitions, 344 flow. Second operand 3 states and 504 transitions. [2022-11-16 12:19:48,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 163 transitions, 380 flow [2022-11-16 12:19:48,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 163 transitions, 378 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:19:48,835 INFO L231 Difference]: Finished difference. Result has 167 places, 161 transitions, 344 flow [2022-11-16 12:19:48,836 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=167, PETRI_TRANSITIONS=161} [2022-11-16 12:19:48,837 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -23 predicate places. [2022-11-16 12:19:48,837 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 161 transitions, 344 flow [2022-11-16 12:19:48,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,838 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:48,838 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:48,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:19:48,838 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:48,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:48,839 INFO L85 PathProgramCache]: Analyzing trace with hash -555654353, now seen corresponding path program 1 times [2022-11-16 12:19:48,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:48,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850489313] [2022-11-16 12:19:48,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:48,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:48,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:48,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:48,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850489313] [2022-11-16 12:19:48,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850489313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:48,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:48,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:48,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012241611] [2022-11-16 12:19:48,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:48,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:48,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:48,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:48,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:48,881 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 193 [2022-11-16 12:19:48,882 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 161 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,882 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:48,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 193 [2022-11-16 12:19:48,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:48,992 INFO L130 PetriNetUnfolder]: 73/583 cut-off events. [2022-11-16 12:19:48,993 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:19:48,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 583 events. 73/583 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2759 event pairs, 54 based on Foata normal form. 0/557 useless extension candidates. Maximal degree in co-relation 764. Up to 115 conditions per place. [2022-11-16 12:19:48,999 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 17 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2022-11-16 12:19:48,999 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 162 transitions, 384 flow [2022-11-16 12:19:48,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:49,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:49,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 497 transitions. [2022-11-16 12:19:49,001 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8583765112262521 [2022-11-16 12:19:49,001 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 497 transitions. [2022-11-16 12:19:49,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 497 transitions. [2022-11-16 12:19:49,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:49,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 497 transitions. [2022-11-16 12:19:49,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:49,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:49,005 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:49,005 INFO L175 Difference]: Start difference. First operand has 167 places, 161 transitions, 344 flow. Second operand 3 states and 497 transitions. [2022-11-16 12:19:49,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 162 transitions, 384 flow [2022-11-16 12:19:49,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 162 transitions, 380 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:49,009 INFO L231 Difference]: Finished difference. Result has 166 places, 160 transitions, 342 flow [2022-11-16 12:19:49,009 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=166, PETRI_TRANSITIONS=160} [2022-11-16 12:19:49,009 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -24 predicate places. [2022-11-16 12:19:49,010 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 160 transitions, 342 flow [2022-11-16 12:19:49,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:49,010 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:49,010 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:49,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:19:49,011 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:49,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:49,011 INFO L85 PathProgramCache]: Analyzing trace with hash -680064600, now seen corresponding path program 1 times [2022-11-16 12:19:49,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:49,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342124931] [2022-11-16 12:19:49,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:49,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:49,197 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:49,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:49,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342124931] [2022-11-16 12:19:49,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342124931] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:19:49,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267685054] [2022-11-16 12:19:49,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:49,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:19:49,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:19:49,202 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:19:49,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:19:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:49,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:19:49,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:49,401 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 12:19:49,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:49,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267685054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:49,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:19:49,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-16 12:19:49,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033261234] [2022-11-16 12:19:49,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:49,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:49,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:49,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:49,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:19:49,405 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 193 [2022-11-16 12:19:49,406 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 160 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:49,406 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:49,406 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 193 [2022-11-16 12:19:49,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:49,494 INFO L130 PetriNetUnfolder]: 36/496 cut-off events. [2022-11-16 12:19:49,495 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:19:49,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 580 conditions, 496 events. 36/496 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1868 event pairs, 1 based on Foata normal form. 0/467 useless extension candidates. Maximal degree in co-relation 574. Up to 31 conditions per place. [2022-11-16 12:19:49,501 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 9 selfloop transitions, 4 changer transitions 0/164 dead transitions. [2022-11-16 12:19:49,502 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 164 transitions, 376 flow [2022-11-16 12:19:49,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:49,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:49,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 527 transitions. [2022-11-16 12:19:49,504 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9101899827288429 [2022-11-16 12:19:49,504 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 527 transitions. [2022-11-16 12:19:49,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 527 transitions. [2022-11-16 12:19:49,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:49,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 527 transitions. [2022-11-16 12:19:49,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:49,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:49,507 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:49,507 INFO L175 Difference]: Start difference. First operand has 166 places, 160 transitions, 342 flow. Second operand 3 states and 527 transitions. [2022-11-16 12:19:49,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 164 transitions, 376 flow [2022-11-16 12:19:49,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 164 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:49,513 INFO L231 Difference]: Finished difference. Result has 168 places, 164 transitions, 372 flow [2022-11-16 12:19:49,513 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=372, PETRI_PLACES=168, PETRI_TRANSITIONS=164} [2022-11-16 12:19:49,514 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -22 predicate places. [2022-11-16 12:19:49,514 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 164 transitions, 372 flow [2022-11-16 12:19:49,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:49,514 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:49,515 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:49,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:19:49,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-16 12:19:49,721 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:49,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:49,721 INFO L85 PathProgramCache]: Analyzing trace with hash -861363770, now seen corresponding path program 1 times [2022-11-16 12:19:49,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:49,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808815810] [2022-11-16 12:19:49,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:49,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:49,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:49,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:49,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:49,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808815810] [2022-11-16 12:19:49,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808815810] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:19:49,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181084873] [2022-11-16 12:19:49,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:49,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:19:49,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:19:49,855 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:19:49,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:19:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:49,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:19:49,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:50,005 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 12:19:50,006 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:50,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181084873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:50,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:19:50,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-16 12:19:50,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621402769] [2022-11-16 12:19:50,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:50,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:50,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:50,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:50,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:19:50,010 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 193 [2022-11-16 12:19:50,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 164 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:50,011 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:50,011 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 193 [2022-11-16 12:19:50,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:50,156 INFO L130 PetriNetUnfolder]: 78/616 cut-off events. [2022-11-16 12:19:50,156 INFO L131 PetriNetUnfolder]: For 138/151 co-relation queries the response was YES. [2022-11-16 12:19:50,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 887 conditions, 616 events. 78/616 cut-off events. For 138/151 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2825 event pairs, 0 based on Foata normal form. 8/579 useless extension candidates. Maximal degree in co-relation 880. Up to 59 conditions per place. [2022-11-16 12:19:50,164 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 12 selfloop transitions, 6 changer transitions 0/171 dead transitions. [2022-11-16 12:19:50,164 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 171 transitions, 436 flow [2022-11-16 12:19:50,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:50,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:50,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2022-11-16 12:19:50,166 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9119170984455959 [2022-11-16 12:19:50,166 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 528 transitions. [2022-11-16 12:19:50,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 528 transitions. [2022-11-16 12:19:50,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:50,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 528 transitions. [2022-11-16 12:19:50,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:50,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:50,170 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:50,171 INFO L175 Difference]: Start difference. First operand has 168 places, 164 transitions, 372 flow. Second operand 3 states and 528 transitions. [2022-11-16 12:19:50,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 171 transitions, 436 flow [2022-11-16 12:19:50,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 171 transitions, 424 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:50,177 INFO L231 Difference]: Finished difference. Result has 170 places, 170 transitions, 422 flow [2022-11-16 12:19:50,177 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=422, PETRI_PLACES=170, PETRI_TRANSITIONS=170} [2022-11-16 12:19:50,178 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -20 predicate places. [2022-11-16 12:19:50,179 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 170 transitions, 422 flow [2022-11-16 12:19:50,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:50,179 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:50,180 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:50,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:19:50,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:19:50,386 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:50,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:50,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1707239747, now seen corresponding path program 1 times [2022-11-16 12:19:50,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:50,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472075748] [2022-11-16 12:19:50,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:50,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:50,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:50,534 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:50,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:50,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472075748] [2022-11-16 12:19:50,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472075748] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:19:50,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643739906] [2022-11-16 12:19:50,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:50,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:19:50,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:19:50,537 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:19:50,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:19:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:50,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:19:50,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:50,816 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:50,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:19:50,918 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:50,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643739906] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:19:50,919 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:19:50,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 12:19:50,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038935691] [2022-11-16 12:19:50,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:19:50,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:19:50,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:50,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:19:50,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:19:50,924 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 193 [2022-11-16 12:19:50,926 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 170 transitions, 422 flow. Second operand has 10 states, 10 states have (on average 168.3) internal successors, (1683), 10 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:50,926 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:50,926 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 193 [2022-11-16 12:19:50,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:51,267 INFO L130 PetriNetUnfolder]: 232/1316 cut-off events. [2022-11-16 12:19:51,267 INFO L131 PetriNetUnfolder]: For 997/1025 co-relation queries the response was YES. [2022-11-16 12:19:51,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2320 conditions, 1316 events. 232/1316 cut-off events. For 997/1025 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6561 event pairs, 13 based on Foata normal form. 16/1275 useless extension candidates. Maximal degree in co-relation 2312. Up to 133 conditions per place. [2022-11-16 12:19:51,283 INFO L137 encePairwiseOnDemand]: 187/193 looper letters, 62 selfloop transitions, 9 changer transitions 0/220 dead transitions. [2022-11-16 12:19:51,283 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 220 transitions, 876 flow [2022-11-16 12:19:51,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:19:51,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 12:19:51,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1533 transitions. [2022-11-16 12:19:51,287 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8825561312607945 [2022-11-16 12:19:51,288 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1533 transitions. [2022-11-16 12:19:51,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1533 transitions. [2022-11-16 12:19:51,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:51,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1533 transitions. [2022-11-16 12:19:51,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 170.33333333333334) internal successors, (1533), 9 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:51,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 193.0) internal successors, (1930), 10 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:51,296 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 193.0) internal successors, (1930), 10 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:51,297 INFO L175 Difference]: Start difference. First operand has 170 places, 170 transitions, 422 flow. Second operand 9 states and 1533 transitions. [2022-11-16 12:19:51,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 220 transitions, 876 flow [2022-11-16 12:19:51,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 220 transitions, 822 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:51,302 INFO L231 Difference]: Finished difference. Result has 179 places, 176 transitions, 460 flow [2022-11-16 12:19:51,303 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=460, PETRI_PLACES=179, PETRI_TRANSITIONS=176} [2022-11-16 12:19:51,303 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -11 predicate places. [2022-11-16 12:19:51,304 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 176 transitions, 460 flow [2022-11-16 12:19:51,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 168.3) internal successors, (1683), 10 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:51,305 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:51,305 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:51,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:19:51,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:19:51,511 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:51,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:51,511 INFO L85 PathProgramCache]: Analyzing trace with hash 2081302237, now seen corresponding path program 2 times [2022-11-16 12:19:51,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:51,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977439787] [2022-11-16 12:19:51,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:51,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:51,777 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:51,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:51,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977439787] [2022-11-16 12:19:51,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977439787] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:19:51,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360838786] [2022-11-16 12:19:51,778 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:19:51,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:19:51,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:19:51,780 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:19:51,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:19:51,925 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:19:51,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:19:51,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:19:51,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:52,142 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:52,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:19:52,444 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:52,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360838786] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:19:52,445 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:19:52,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-16 12:19:52,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766907035] [2022-11-16 12:19:52,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:19:52,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:19:52,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:52,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:19:52,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:19:52,450 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 193 [2022-11-16 12:19:52,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 176 transitions, 460 flow. Second operand has 18 states, 18 states have (on average 168.16666666666666) internal successors, (3027), 18 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:52,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:52,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 193 [2022-11-16 12:19:52,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:53,232 INFO L130 PetriNetUnfolder]: 392/2176 cut-off events. [2022-11-16 12:19:53,232 INFO L131 PetriNetUnfolder]: For 1508/1536 co-relation queries the response was YES. [2022-11-16 12:19:53,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3892 conditions, 2176 events. 392/2176 cut-off events. For 1508/1536 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 10535 event pairs, 13 based on Foata normal form. 26/2143 useless extension candidates. Maximal degree in co-relation 3882. Up to 213 conditions per place. [2022-11-16 12:19:53,259 INFO L137 encePairwiseOnDemand]: 187/193 looper letters, 138 selfloop transitions, 21 changer transitions 0/308 dead transitions. [2022-11-16 12:19:53,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 308 transitions, 1558 flow [2022-11-16 12:19:53,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 12:19:53,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 12:19:53,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3567 transitions. [2022-11-16 12:19:53,269 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8800888230940045 [2022-11-16 12:19:53,269 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3567 transitions. [2022-11-16 12:19:53,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3567 transitions. [2022-11-16 12:19:53,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:53,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3567 transitions. [2022-11-16 12:19:53,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 169.85714285714286) internal successors, (3567), 21 states have internal predecessors, (3567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:53,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 193.0) internal successors, (4246), 22 states have internal predecessors, (4246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:53,288 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 193.0) internal successors, (4246), 22 states have internal predecessors, (4246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:53,289 INFO L175 Difference]: Start difference. First operand has 179 places, 176 transitions, 460 flow. Second operand 21 states and 3567 transitions. [2022-11-16 12:19:53,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 308 transitions, 1558 flow [2022-11-16 12:19:53,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 308 transitions, 1544 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-11-16 12:19:53,298 INFO L231 Difference]: Finished difference. Result has 203 places, 189 transitions, 584 flow [2022-11-16 12:19:53,298 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=584, PETRI_PLACES=203, PETRI_TRANSITIONS=189} [2022-11-16 12:19:53,299 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, 13 predicate places. [2022-11-16 12:19:53,299 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 189 transitions, 584 flow [2022-11-16 12:19:53,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 168.16666666666666) internal successors, (3027), 18 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:53,300 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:53,301 INFO L209 CegarLoopForPetriNet]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:53,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:19:53,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:19:53,506 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:53,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:53,507 INFO L85 PathProgramCache]: Analyzing trace with hash -337608931, now seen corresponding path program 3 times [2022-11-16 12:19:53,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:53,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063072232] [2022-11-16 12:19:53,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:53,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:53,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:54,141 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:54,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:54,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063072232] [2022-11-16 12:19:54,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063072232] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:19:54,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323938928] [2022-11-16 12:19:54,142 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:19:54,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:19:54,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:19:54,143 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:19:54,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 12:19:54,333 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-16 12:19:54,333 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:19:54,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 12:19:54,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:54,744 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:54,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:19:55,374 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:55,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323938928] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:19:55,375 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:19:55,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 27 [2022-11-16 12:19:55,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934101797] [2022-11-16 12:19:55,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:19:55,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-16 12:19:55,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:55,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-16 12:19:55,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=507, Unknown=0, NotChecked=0, Total=702 [2022-11-16 12:19:55,381 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 193 [2022-11-16 12:19:55,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 189 transitions, 584 flow. Second operand has 27 states, 27 states have (on average 168.1851851851852) internal successors, (4541), 27 states have internal predecessors, (4541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:55,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:55,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 193 [2022-11-16 12:19:55,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:57,013 INFO L130 PetriNetUnfolder]: 592/3251 cut-off events. [2022-11-16 12:19:57,013 INFO L131 PetriNetUnfolder]: For 3511/3539 co-relation queries the response was YES. [2022-11-16 12:19:57,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6168 conditions, 3251 events. 592/3251 cut-off events. For 3511/3539 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 15497 event pairs, 13 based on Foata normal form. 31/3223 useless extension candidates. Maximal degree in co-relation 6153. Up to 313 conditions per place. [2022-11-16 12:19:57,063 INFO L137 encePairwiseOnDemand]: 187/193 looper letters, 233 selfloop transitions, 36 changer transitions 0/418 dead transitions. [2022-11-16 12:19:57,064 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 418 transitions, 2538 flow [2022-11-16 12:19:57,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-16 12:19:57,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-11-16 12:19:57,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 6108 transitions. [2022-11-16 12:19:57,080 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8791018998272885 [2022-11-16 12:19:57,080 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 6108 transitions. [2022-11-16 12:19:57,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 6108 transitions. [2022-11-16 12:19:57,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:57,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 6108 transitions. [2022-11-16 12:19:57,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 169.66666666666666) internal successors, (6108), 36 states have internal predecessors, (6108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:57,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 193.0) internal successors, (7141), 37 states have internal predecessors, (7141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:57,118 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 193.0) internal successors, (7141), 37 states have internal predecessors, (7141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:57,119 INFO L175 Difference]: Start difference. First operand has 203 places, 189 transitions, 584 flow. Second operand 36 states and 6108 transitions. [2022-11-16 12:19:57,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 418 transitions, 2538 flow [2022-11-16 12:19:57,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 418 transitions, 2504 flow, removed 11 selfloop flow, removed 6 redundant places. [2022-11-16 12:19:57,134 INFO L231 Difference]: Finished difference. Result has 238 places, 205 transitions, 772 flow [2022-11-16 12:19:57,135 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=772, PETRI_PLACES=238, PETRI_TRANSITIONS=205} [2022-11-16 12:19:57,135 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, 48 predicate places. [2022-11-16 12:19:57,135 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 205 transitions, 772 flow [2022-11-16 12:19:57,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 168.1851851851852) internal successors, (4541), 27 states have internal predecessors, (4541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:57,137 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:57,138 INFO L209 CegarLoopForPetriNet]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:57,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-16 12:19:57,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-16 12:19:57,343 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 12:19:57,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:57,344 INFO L85 PathProgramCache]: Analyzing trace with hash 20972964, now seen corresponding path program 4 times [2022-11-16 12:19:57,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:57,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370348889] [2022-11-16 12:19:57,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:57,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:19:57,435 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:19:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:19:57,850 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:19:57,850 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:19:57,851 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2022-11-16 12:19:57,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2022-11-16 12:19:57,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2022-11-16 12:19:57,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2022-11-16 12:19:57,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2022-11-16 12:19:57,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2022-11-16 12:19:57,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2022-11-16 12:19:57,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2022-11-16 12:19:57,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2022-11-16 12:19:57,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2022-11-16 12:19:57,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2022-11-16 12:19:57,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2022-11-16 12:19:57,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2022-11-16 12:19:57,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2022-11-16 12:19:57,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2022-11-16 12:19:57,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2022-11-16 12:19:57,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 46 remaining) [2022-11-16 12:19:57,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 46 remaining) [2022-11-16 12:19:57,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2022-11-16 12:19:57,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2022-11-16 12:19:57,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2022-11-16 12:19:57,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2022-11-16 12:19:57,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2022-11-16 12:19:57,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2022-11-16 12:19:57,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2022-11-16 12:19:57,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2022-11-16 12:19:57,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2022-11-16 12:19:57,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2022-11-16 12:19:57,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2022-11-16 12:19:57,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2022-11-16 12:19:57,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2022-11-16 12:19:57,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2022-11-16 12:19:57,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2022-11-16 12:19:57,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2022-11-16 12:19:57,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2022-11-16 12:19:57,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2022-11-16 12:19:57,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2022-11-16 12:19:57,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2022-11-16 12:19:57,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2022-11-16 12:19:57,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2022-11-16 12:19:57,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2022-11-16 12:19:57,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2022-11-16 12:19:57,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2022-11-16 12:19:57,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2022-11-16 12:19:57,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2022-11-16 12:19:57,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2022-11-16 12:19:57,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 12:19:57,863 INFO L444 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:57,872 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:19:57,872 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:19:58,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:19:58 BasicIcfg [2022-11-16 12:19:58,205 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:19:58,206 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:19:58,206 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:19:58,206 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:19:58,207 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:19:45" (3/4) ... [2022-11-16 12:19:58,210 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:19:58,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:19:58,211 INFO L158 Benchmark]: Toolchain (without parser) took 14704.93ms. Allocated memory was 107.0MB in the beginning and 339.7MB in the end (delta: 232.8MB). Free memory was 82.3MB in the beginning and 235.2MB in the end (delta: -152.9MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. [2022-11-16 12:19:58,211 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory was 78.0MB in the beginning and 77.9MB in the end (delta: 45.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:19:58,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 714.72ms. Allocated memory is still 107.0MB. Free memory was 82.1MB in the beginning and 69.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 12:19:58,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.96ms. Allocated memory is still 107.0MB. Free memory was 69.6MB in the beginning and 67.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:19:58,212 INFO L158 Benchmark]: Boogie Preprocessor took 55.85ms. Allocated memory is still 107.0MB. Free memory was 67.3MB in the beginning and 65.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:19:58,213 INFO L158 Benchmark]: RCFGBuilder took 763.63ms. Allocated memory is still 107.0MB. Free memory was 65.7MB in the beginning and 44.3MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-16 12:19:58,213 INFO L158 Benchmark]: TraceAbstraction took 13069.36ms. Allocated memory was 107.0MB in the beginning and 339.7MB in the end (delta: 232.8MB). Free memory was 43.8MB in the beginning and 235.2MB in the end (delta: -191.4MB). Peak memory consumption was 201.6MB. Max. memory is 16.1GB. [2022-11-16 12:19:58,213 INFO L158 Benchmark]: Witness Printer took 4.25ms. Allocated memory is still 339.7MB. Free memory is still 235.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:19:58,215 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory was 78.0MB in the beginning and 77.9MB in the end (delta: 45.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 714.72ms. Allocated memory is still 107.0MB. Free memory was 82.1MB in the beginning and 69.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.96ms. Allocated memory is still 107.0MB. Free memory was 69.6MB in the beginning and 67.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.85ms. Allocated memory is still 107.0MB. Free memory was 67.3MB in the beginning and 65.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 763.63ms. Allocated memory is still 107.0MB. Free memory was 65.7MB in the beginning and 44.3MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 13069.36ms. Allocated memory was 107.0MB in the beginning and 339.7MB in the end (delta: 232.8MB). Free memory was 43.8MB in the beginning and 235.2MB in the end (delta: -191.4MB). Peak memory consumption was 201.6MB. Max. memory is 16.1GB. * Witness Printer took 4.25ms. Allocated memory is still 339.7MB. Free memory is still 235.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 725]: Data race detected Data race detected The following path leads to a data race: [L703] 0 int cur = 1, prev = 0, next = 0; VAL [cur=1, next=0, prev=0] [L683] 0 int i, j; VAL [cur=1, i=0, j=0, next=0, prev=0] [L686] 0 int p, q; VAL [cur=1, i=0, j=0, next=0, p=0, prev=0, q=0] [L704] 0 int x; VAL [cur=1, i=0, j=0, next=0, p=0, prev=0, q=0, x=0] [L714] 0 pthread_t id1, id2; VAL [\old(argc)=277, argc=277, argv={266:236}, argv={266:236}, cur=1, i=0, id1={5:0}, id2={3:0}, j=0, next=0, p=0, prev=0, q=0, x=0] [L716] 0 i = 1 VAL [\old(argc)=277, argc=277, argv={266:236}, argv={266:236}, cur=1, i=1, id1={5:0}, id2={3:0}, j=0, next=0, p=0, prev=0, q=0, x=0] [L719] 0 j = 1 VAL [\old(argc)=277, argc=277, argv={266:236}, argv={266:236}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, q=0, x=0] [L721] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(argc)=277, arg={0:0}, argc=277, argv={266:236}, argv={266:236}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, pthread_create(&id1, ((void *)0), t1, ((void *)0))=-1, q=0, x=0] [L722] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(argc)=277, arg={0:0}, arg={0:0}, argc=277, argv={266:236}, argv={266:236}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, pthread_create(&id2, ((void *)0), t2, ((void *)0))=0, q=0, x=0] [L723] CALL, EXPR 0 fib() [L706] 0 x = 0 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=0, q=0, x=0] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=0] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=0] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=2, p=0, prev=1, q=0, x=1] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=2, p=0, prev=1, q=0, x=1] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=1] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=3, p=0, prev=1, q=0, x=2] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=3, p=0, prev=2, q=0, x=2] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=2] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=5, p=0, prev=2, q=0, x=3] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=5, p=0, prev=3, q=0, x=3] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=3] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=8, p=0, prev=3, q=0, x=4] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=8, p=0, prev=5, q=0, x=4] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=4] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=13, p=0, prev=5, q=0, x=5] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=13, p=0, prev=8, q=0, x=5] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=5] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=21, p=0, prev=8, q=0, x=6] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=21, p=0, prev=13, q=0, x=6] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=6] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=34, p=0, prev=13, q=0, x=7] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=34, p=0, prev=21, q=0, x=7] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=7] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=55, p=0, prev=21, q=0, x=8] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=55, p=0, prev=34, q=0, x=8] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=8] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=89, p=0, prev=34, q=0, x=9] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=89, p=0, prev=55, q=0, x=9] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=9] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=144, p=0, prev=55, q=0, x=10] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=144, p=0, prev=89, q=0, x=10] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=10] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=233, p=0, prev=89, q=0, x=11] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=233, p=0, prev=144, q=0, x=11] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=11] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L706] COND FALSE 0 !(x < 12) VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L688] 1 p = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L688] 1 p < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L688] COND TRUE 1 p < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L711] 0 return prev; VAL [\result=144, arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L723] RET, EXPR 0 fib() [L723] 0 int correct = fib(); VAL [\old(argc)=277, arg={0:0}, arg={0:0}, arg={0:0}, argc=277, argv={266:236}, argv={266:236}, correct=144, cur=233, fib()=144, i=1, id1={5:0}, id2={3:0}, j=1, next=233, p=0, prev=144, q=0, x=12] [L725] 0 i <= correct VAL [\old(argc)=277, arg={0:0}, arg={0:0}, arg={0:0}, argc=277, argv={266:236}, argv={266:236}, correct=144, cur=233, i=1, id1={5:0}, id2={3:0}, j=1, next=233, p=0, prev=144, q=0, x=12] [L690] EXPR 1 i + j [L690] 1 i = i + j VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=2, j=1, next=233, p=0, prev=144, q=0, x=12] [L725] 0 i <= correct VAL [\old(argc)=277, arg={0:0}, arg={0:0}, arg={0:0}, argc=277, argv={266:236}, argv={266:236}, correct=144, cur=233, i=2, id1={5:0}, id2={3:0}, j=1, next=233, p=0, prev=144, q=0, x=12] Now there is a data race on ~i~0 between C: i = i + j [690] and C: i <= correct [725] - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 246 locations, 46 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 12.6s, OverallIterations: 23, TraceHistogramMax: 13, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 559 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 559 mSDsluCounter, 199 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 698 IncrementalHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 147 mSDtfsCounter, 698 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1497 GetRequests, 1379 SyntacticMatches, 7 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 798 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=772occurred in iteration=22, InterpolantAutomatonStates: 122, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 2990 NumberOfCodeBlocks, 2990 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 3067 ConstructedInterpolants, 0 QuantifiedInterpolants, 5719 SizeOfPredicates, 22 NumberOfNonLiveVariables, 1624 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 30 InterpolantComputations, 19 PerfectInterpolantSequences, 6/2631 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-16 12:19:58,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fc9df-c6d6-4f9a-a17f-98e90484a492/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE