./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cc9d7d-7c1c-41ae-a0c5-582f044c4721/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cc9d7d-7c1c-41ae-a0c5-582f044c4721/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cc9d7d-7c1c-41ae-a0c5-582f044c4721/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cc9d7d-7c1c-41ae-a0c5-582f044c4721/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cc9d7d-7c1c-41ae-a0c5-582f044c4721/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cc9d7d-7c1c-41ae-a0c5-582f044c4721/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:27:46,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:27:46,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:27:46,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:27:46,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:27:46,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:27:46,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:27:46,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:27:46,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:27:46,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:27:46,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:27:46,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:27:46,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:27:46,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:27:46,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:27:46,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:27:46,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:27:46,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:27:46,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:27:46,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:27:46,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:27:46,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:27:46,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:27:46,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:27:46,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:27:46,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:27:46,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:27:46,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:27:46,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:27:46,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:27:46,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:27:46,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:27:46,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:27:46,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:27:46,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:27:46,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:27:46,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:27:46,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:27:46,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:27:46,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:27:46,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:27:46,174 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cc9d7d-7c1c-41ae-a0c5-582f044c4721/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:27:46,220 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:27:46,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:27:46,227 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:27:46,228 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:27:46,229 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:27:46,230 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:27:46,231 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:27:46,231 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:27:46,231 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:27:46,232 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:27:46,233 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:27:46,233 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:27:46,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:27:46,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:27:46,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:27:46,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:27:46,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:27:46,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:27:46,235 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:27:46,235 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:27:46,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:27:46,235 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:27:46,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:27:46,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:27:46,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:27:46,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:27:46,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:27:46,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:27:46,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:27:46,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:27:46,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:27:46,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:27:46,240 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:27:46,240 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:27:46,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:27:46,241 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_b2cc9d7d-7c1c-41ae-a0c5-582f044c4721/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cc9d7d-7c1c-41ae-a0c5-582f044c4721/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 [2022-11-18 20:27:46,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:27:46,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:27:46,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:27:46,664 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:27:46,667 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:27:46,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cc9d7d-7c1c-41ae-a0c5-582f044c4721/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-18 20:27:46,746 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cc9d7d-7c1c-41ae-a0c5-582f044c4721/bin/uautomizer-TMbwUNV5ro/data/8d7e7c5de/25794445b3d7433caf705d9eeb4c9101/FLAG738e46cf2 [2022-11-18 20:27:47,338 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:27:47,339 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cc9d7d-7c1c-41ae-a0c5-582f044c4721/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-18 20:27:47,351 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cc9d7d-7c1c-41ae-a0c5-582f044c4721/bin/uautomizer-TMbwUNV5ro/data/8d7e7c5de/25794445b3d7433caf705d9eeb4c9101/FLAG738e46cf2 [2022-11-18 20:27:47,692 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cc9d7d-7c1c-41ae-a0c5-582f044c4721/bin/uautomizer-TMbwUNV5ro/data/8d7e7c5de/25794445b3d7433caf705d9eeb4c9101 [2022-11-18 20:27:47,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:27:47,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:27:47,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:27:47,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:27:47,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:27:47,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:27:47" (1/1) ... [2022-11-18 20:27:47,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d92f12f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:47, skipping insertion in model container [2022-11-18 20:27:47,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:27:47" (1/1) ... [2022-11-18 20:27:47,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:27:47,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:27:48,123 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cc9d7d-7c1c-41ae-a0c5-582f044c4721/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-18 20:27:48,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:27:48,141 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:27:48,190 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cc9d7d-7c1c-41ae-a0c5-582f044c4721/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-18 20:27:48,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:27:48,213 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:27:48,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:48 WrapperNode [2022-11-18 20:27:48,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:27:48,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:27:48,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:27:48,216 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:27:48,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:48" (1/1) ... [2022-11-18 20:27:48,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:48" (1/1) ... [2022-11-18 20:27:48,305 INFO L138 Inliner]: procedures = 29, calls = 95, calls flagged for inlining = 21, calls inlined = 27, statements flattened = 494 [2022-11-18 20:27:48,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:27:48,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:27:48,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:27:48,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:27:48,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:48" (1/1) ... [2022-11-18 20:27:48,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:48" (1/1) ... [2022-11-18 20:27:48,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:48" (1/1) ... [2022-11-18 20:27:48,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:48" (1/1) ... [2022-11-18 20:27:48,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:48" (1/1) ... [2022-11-18 20:27:48,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:48" (1/1) ... [2022-11-18 20:27:48,351 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:48" (1/1) ... [2022-11-18 20:27:48,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:48" (1/1) ... [2022-11-18 20:27:48,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:27:48,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:27:48,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:27:48,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:27:48,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:48" (1/1) ... [2022-11-18 20:27:48,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:27:48,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cc9d7d-7c1c-41ae-a0c5-582f044c4721/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:27:48,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cc9d7d-7c1c-41ae-a0c5-582f044c4721/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:27:48,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cc9d7d-7c1c-41ae-a0c5-582f044c4721/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:27:48,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:27:48,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:27:48,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:27:48,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:27:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:27:48,483 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:27:48,484 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:27:48,484 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:27:48,485 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:27:48,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:27:48,485 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-18 20:27:48,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-18 20:27:48,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:27:48,485 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-18 20:27:48,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-18 20:27:48,486 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-18 20:27:48,486 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-18 20:27:48,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:27:48,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:27:48,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:27:48,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:27:48,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:27:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:27:48,490 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:27:48,692 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:27:48,695 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:27:49,966 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:27:50,477 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:27:50,478 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-18 20:27:50,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:27:50 BoogieIcfgContainer [2022-11-18 20:27:50,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:27:50,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:27:50,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:27:50,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:27:50,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:27:47" (1/3) ... [2022-11-18 20:27:50,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f3c9de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:27:50, skipping insertion in model container [2022-11-18 20:27:50,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:48" (2/3) ... [2022-11-18 20:27:50,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f3c9de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:27:50, skipping insertion in model container [2022-11-18 20:27:50,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:27:50" (3/3) ... [2022-11-18 20:27:50,496 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2022-11-18 20:27:50,511 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:27:50,524 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:27:50,524 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 77 error locations. [2022-11-18 20:27:50,524 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:27:50,775 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-18 20:27:50,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 434 places, 433 transitions, 938 flow [2022-11-18 20:27:51,100 INFO L130 PetriNetUnfolder]: 18/393 cut-off events. [2022-11-18 20:27:51,100 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:27:51,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 393 events. 18/393 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 796 event pairs, 0 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 331. Up to 3 conditions per place. [2022-11-18 20:27:51,112 INFO L82 GeneralOperation]: Start removeDead. Operand has 434 places, 433 transitions, 938 flow [2022-11-18 20:27:51,124 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 377 places, 375 transitions, 798 flow [2022-11-18 20:27:51,145 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:27:51,157 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;@ed06b5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:27:51,157 INFO L358 AbstractCegarLoop]: Starting to check reachability of 147 error locations. [2022-11-18 20:27:51,167 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-18 20:27:51,168 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:27:51,169 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:27:51,169 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] [2022-11-18 20:27:51,170 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-11-18 20:27:51,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:27:51,177 INFO L85 PathProgramCache]: Analyzing trace with hash 695699595, now seen corresponding path program 1 times [2022-11-18 20:27:51,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:27:51,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602040451] [2022-11-18 20:27:51,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:51,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:27:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:51,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:27:51,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:27:51,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602040451] [2022-11-18 20:27:51,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602040451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:27:51,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:27:51,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:27:51,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297956498] [2022-11-18 20:27:51,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:27:51,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:27:51,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:27:51,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:27:51,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:27:51,591 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 437 [2022-11-18 20:27:51,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 375 transitions, 798 flow. Second operand has 3 states, 3 states have (on average 322.3333333333333) internal successors, (967), 3 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:51,602 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:27:51,602 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 437 [2022-11-18 20:27:51,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:27:53,135 INFO L130 PetriNetUnfolder]: 1084/3018 cut-off events. [2022-11-18 20:27:53,135 INFO L131 PetriNetUnfolder]: For 695/1051 co-relation queries the response was YES. [2022-11-18 20:27:53,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5146 conditions, 3018 events. 1084/3018 cut-off events. For 695/1051 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 19864 event pairs, 627 based on Foata normal form. 308/2966 useless extension candidates. Maximal degree in co-relation 4721. Up to 1454 conditions per place. [2022-11-18 20:27:53,198 INFO L137 encePairwiseOnDemand]: 370/437 looper letters, 39 selfloop transitions, 2 changer transitions 3/310 dead transitions. [2022-11-18 20:27:53,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 310 transitions, 750 flow [2022-11-18 20:27:53,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:27:53,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:27:53,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1069 transitions. [2022-11-18 20:27:53,220 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8154080854309688 [2022-11-18 20:27:53,222 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1069 transitions. [2022-11-18 20:27:53,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1069 transitions. [2022-11-18 20:27:53,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:27:53,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1069 transitions. [2022-11-18 20:27:53,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:53,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:53,247 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:53,250 INFO L175 Difference]: Start difference. First operand has 377 places, 375 transitions, 798 flow. Second operand 3 states and 1069 transitions. [2022-11-18 20:27:53,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 310 transitions, 750 flow [2022-11-18 20:27:53,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 310 transitions, 718 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-11-18 20:27:53,269 INFO L231 Difference]: Finished difference. Result has 310 places, 307 transitions, 634 flow [2022-11-18 20:27:53,272 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=634, PETRI_PLACES=310, PETRI_TRANSITIONS=307} [2022-11-18 20:27:53,276 INFO L288 CegarLoopForPetriNet]: 377 programPoint places, -67 predicate places. [2022-11-18 20:27:53,276 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 307 transitions, 634 flow [2022-11-18 20:27:53,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 322.3333333333333) internal successors, (967), 3 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:53,278 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:27:53,278 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:27:53,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:27:53,279 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-11-18 20:27:53,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:27:53,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1467369863, now seen corresponding path program 1 times [2022-11-18 20:27:53,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:27:53,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999574267] [2022-11-18 20:27:53,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:53,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:27:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:53,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:27:53,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:27:53,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999574267] [2022-11-18 20:27:53,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999574267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:27:53,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:27:53,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:27:53,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735411406] [2022-11-18 20:27:53,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:27:53,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:27:53,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:27:53,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:27:53,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:27:53,398 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 437 [2022-11-18 20:27:53,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 307 transitions, 634 flow. Second operand has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:53,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:27:53,402 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 437 [2022-11-18 20:27:53,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:27:54,587 INFO L130 PetriNetUnfolder]: 1084/3014 cut-off events. [2022-11-18 20:27:54,587 INFO L131 PetriNetUnfolder]: For 171/527 co-relation queries the response was YES. [2022-11-18 20:27:54,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4642 conditions, 3014 events. 1084/3014 cut-off events. For 171/527 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 19729 event pairs, 627 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 4605. Up to 1451 conditions per place. [2022-11-18 20:27:54,634 INFO L137 encePairwiseOnDemand]: 434/437 looper letters, 36 selfloop transitions, 2 changer transitions 0/306 dead transitions. [2022-11-18 20:27:54,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 306 transitions, 708 flow [2022-11-18 20:27:54,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:27:54,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:27:54,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1011 transitions. [2022-11-18 20:27:54,639 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7711670480549199 [2022-11-18 20:27:54,639 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1011 transitions. [2022-11-18 20:27:54,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1011 transitions. [2022-11-18 20:27:54,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:27:54,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1011 transitions. [2022-11-18 20:27:54,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 337.0) internal successors, (1011), 3 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:54,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:54,650 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:54,651 INFO L175 Difference]: Start difference. First operand has 310 places, 307 transitions, 634 flow. Second operand 3 states and 1011 transitions. [2022-11-18 20:27:54,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 306 transitions, 708 flow [2022-11-18 20:27:54,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 306 transitions, 704 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:27:54,661 INFO L231 Difference]: Finished difference. Result has 306 places, 306 transitions, 632 flow [2022-11-18 20:27:54,661 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=632, PETRI_PLACES=306, PETRI_TRANSITIONS=306} [2022-11-18 20:27:54,662 INFO L288 CegarLoopForPetriNet]: 377 programPoint places, -71 predicate places. [2022-11-18 20:27:54,662 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 306 transitions, 632 flow [2022-11-18 20:27:54,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:54,664 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:27:54,664 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] [2022-11-18 20:27:54,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:27:54,664 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-11-18 20:27:54,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:27:54,665 INFO L85 PathProgramCache]: Analyzing trace with hash 291667574, now seen corresponding path program 1 times [2022-11-18 20:27:54,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:27:54,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839195661] [2022-11-18 20:27:54,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:54,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:27:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:54,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:27:54,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:27:54,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839195661] [2022-11-18 20:27:54,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839195661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:27:54,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:27:54,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:27:54,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403557953] [2022-11-18 20:27:54,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:27:54,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:27:54,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:27:54,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:27:54,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:27:54,766 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 437 [2022-11-18 20:27:54,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 306 transitions, 632 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:54,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:27:54,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 437 [2022-11-18 20:27:54,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:27:55,772 INFO L130 PetriNetUnfolder]: 1084/3013 cut-off events. [2022-11-18 20:27:55,772 INFO L131 PetriNetUnfolder]: For 171/527 co-relation queries the response was YES. [2022-11-18 20:27:55,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4638 conditions, 3013 events. 1084/3013 cut-off events. For 171/527 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19758 event pairs, 627 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 4594. Up to 1448 conditions per place. [2022-11-18 20:27:55,819 INFO L137 encePairwiseOnDemand]: 434/437 looper letters, 33 selfloop transitions, 2 changer transitions 0/305 dead transitions. [2022-11-18 20:27:55,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 305 transitions, 700 flow [2022-11-18 20:27:55,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:27:55,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:27:55,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1017 transitions. [2022-11-18 20:27:55,824 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7757437070938215 [2022-11-18 20:27:55,824 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1017 transitions. [2022-11-18 20:27:55,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1017 transitions. [2022-11-18 20:27:55,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:27:55,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1017 transitions. [2022-11-18 20:27:55,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:55,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:55,835 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:55,836 INFO L175 Difference]: Start difference. First operand has 306 places, 306 transitions, 632 flow. Second operand 3 states and 1017 transitions. [2022-11-18 20:27:55,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 305 transitions, 700 flow [2022-11-18 20:27:55,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 305 transitions, 696 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:27:55,844 INFO L231 Difference]: Finished difference. Result has 305 places, 305 transitions, 630 flow [2022-11-18 20:27:55,845 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=630, PETRI_PLACES=305, PETRI_TRANSITIONS=305} [2022-11-18 20:27:55,846 INFO L288 CegarLoopForPetriNet]: 377 programPoint places, -72 predicate places. [2022-11-18 20:27:55,846 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 305 transitions, 630 flow [2022-11-18 20:27:55,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:55,848 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:27:55,848 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] [2022-11-18 20:27:55,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:27:55,848 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-11-18 20:27:55,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:27:55,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1250054064, now seen corresponding path program 1 times [2022-11-18 20:27:55,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:27:55,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879961719] [2022-11-18 20:27:55,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:55,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:27:55,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:55,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:27:55,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:27:55,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879961719] [2022-11-18 20:27:55,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879961719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:27:55,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:27:55,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:27:55,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286272860] [2022-11-18 20:27:55,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:27:55,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:27:55,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:27:55,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:27:55,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:27:55,909 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 437 [2022-11-18 20:27:55,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 305 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:55,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:27:55,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 437 [2022-11-18 20:27:55,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:27:56,808 INFO L130 PetriNetUnfolder]: 1084/3012 cut-off events. [2022-11-18 20:27:56,808 INFO L131 PetriNetUnfolder]: For 171/527 co-relation queries the response was YES. [2022-11-18 20:27:56,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4637 conditions, 3012 events. 1084/3012 cut-off events. For 171/527 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19766 event pairs, 627 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 4586. Up to 1448 conditions per place. [2022-11-18 20:27:56,849 INFO L137 encePairwiseOnDemand]: 434/437 looper letters, 33 selfloop transitions, 2 changer transitions 0/304 dead transitions. [2022-11-18 20:27:56,850 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 304 transitions, 698 flow [2022-11-18 20:27:56,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:27:56,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:27:56,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1017 transitions. [2022-11-18 20:27:56,853 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7757437070938215 [2022-11-18 20:27:56,854 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1017 transitions. [2022-11-18 20:27:56,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1017 transitions. [2022-11-18 20:27:56,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:27:56,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1017 transitions. [2022-11-18 20:27:56,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:56,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:56,863 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:56,863 INFO L175 Difference]: Start difference. First operand has 305 places, 305 transitions, 630 flow. Second operand 3 states and 1017 transitions. [2022-11-18 20:27:56,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 304 transitions, 698 flow [2022-11-18 20:27:56,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 304 transitions, 694 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:27:56,871 INFO L231 Difference]: Finished difference. Result has 304 places, 304 transitions, 628 flow [2022-11-18 20:27:56,872 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=628, PETRI_PLACES=304, PETRI_TRANSITIONS=304} [2022-11-18 20:27:56,872 INFO L288 CegarLoopForPetriNet]: 377 programPoint places, -73 predicate places. [2022-11-18 20:27:56,873 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 304 transitions, 628 flow [2022-11-18 20:27:56,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:56,874 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:27:56,874 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:27:56,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:27:56,875 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-11-18 20:27:56,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:27:56,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1744819852, now seen corresponding path program 1 times [2022-11-18 20:27:56,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:27:56,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140761513] [2022-11-18 20:27:56,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:56,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:27:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:56,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:27:56,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:27:56,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140761513] [2022-11-18 20:27:56,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140761513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:27:56,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:27:56,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:27:56,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884406697] [2022-11-18 20:27:56,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:27:56,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:27:56,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:27:56,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:27:56,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:27:56,933 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 437 [2022-11-18 20:27:56,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 304 transitions, 628 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:56,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:27:56,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 437 [2022-11-18 20:27:56,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:27:57,755 INFO L130 PetriNetUnfolder]: 1084/3011 cut-off events. [2022-11-18 20:27:57,756 INFO L131 PetriNetUnfolder]: For 171/527 co-relation queries the response was YES. [2022-11-18 20:27:57,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4636 conditions, 3011 events. 1084/3011 cut-off events. For 171/527 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19795 event pairs, 627 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 4578. Up to 1448 conditions per place. [2022-11-18 20:27:57,800 INFO L137 encePairwiseOnDemand]: 434/437 looper letters, 33 selfloop transitions, 2 changer transitions 0/303 dead transitions. [2022-11-18 20:27:57,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 303 transitions, 696 flow [2022-11-18 20:27:57,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:27:57,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:27:57,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1017 transitions. [2022-11-18 20:27:57,804 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7757437070938215 [2022-11-18 20:27:57,804 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1017 transitions. [2022-11-18 20:27:57,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1017 transitions. [2022-11-18 20:27:57,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:27:57,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1017 transitions. [2022-11-18 20:27:57,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:57,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:57,814 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:57,814 INFO L175 Difference]: Start difference. First operand has 304 places, 304 transitions, 628 flow. Second operand 3 states and 1017 transitions. [2022-11-18 20:27:57,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 303 transitions, 696 flow [2022-11-18 20:27:57,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 303 transitions, 692 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:27:57,823 INFO L231 Difference]: Finished difference. Result has 303 places, 303 transitions, 626 flow [2022-11-18 20:27:57,824 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=626, PETRI_PLACES=303, PETRI_TRANSITIONS=303} [2022-11-18 20:27:57,828 INFO L288 CegarLoopForPetriNet]: 377 programPoint places, -74 predicate places. [2022-11-18 20:27:57,828 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 303 transitions, 626 flow [2022-11-18 20:27:57,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:57,831 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:27:57,832 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:27:57,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:27:57,832 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-11-18 20:27:57,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:27:57,834 INFO L85 PathProgramCache]: Analyzing trace with hash -561983842, now seen corresponding path program 1 times [2022-11-18 20:27:57,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:27:57,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133229002] [2022-11-18 20:27:57,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:57,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:27:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:57,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:27:57,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:27:57,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133229002] [2022-11-18 20:27:57,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133229002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:27:57,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:27:57,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:27:57,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102645349] [2022-11-18 20:27:57,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:27:57,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:27:57,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:27:57,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:27:57,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:27:57,919 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 437 [2022-11-18 20:27:57,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 303 transitions, 626 flow. Second operand has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:57,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:27:57,922 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 437 [2022-11-18 20:27:57,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:27:58,757 INFO L130 PetriNetUnfolder]: 1084/3010 cut-off events. [2022-11-18 20:27:58,758 INFO L131 PetriNetUnfolder]: For 171/527 co-relation queries the response was YES. [2022-11-18 20:27:58,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4637 conditions, 3010 events. 1084/3010 cut-off events. For 171/527 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19793 event pairs, 627 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 4572. Up to 1450 conditions per place. [2022-11-18 20:27:58,800 INFO L137 encePairwiseOnDemand]: 434/437 looper letters, 35 selfloop transitions, 2 changer transitions 0/302 dead transitions. [2022-11-18 20:27:58,800 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 302 transitions, 698 flow [2022-11-18 20:27:58,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:27:58,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:27:58,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1010 transitions. [2022-11-18 20:27:58,804 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7704042715484363 [2022-11-18 20:27:58,805 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1010 transitions. [2022-11-18 20:27:58,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1010 transitions. [2022-11-18 20:27:58,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:27:58,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1010 transitions. [2022-11-18 20:27:58,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.6666666666667) internal successors, (1010), 3 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:58,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:58,815 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:58,815 INFO L175 Difference]: Start difference. First operand has 303 places, 303 transitions, 626 flow. Second operand 3 states and 1010 transitions. [2022-11-18 20:27:58,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 302 transitions, 698 flow [2022-11-18 20:27:58,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 302 transitions, 694 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:27:58,829 INFO L231 Difference]: Finished difference. Result has 302 places, 302 transitions, 624 flow [2022-11-18 20:27:58,830 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=624, PETRI_PLACES=302, PETRI_TRANSITIONS=302} [2022-11-18 20:27:58,833 INFO L288 CegarLoopForPetriNet]: 377 programPoint places, -75 predicate places. [2022-11-18 20:27:58,833 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 302 transitions, 624 flow [2022-11-18 20:27:58,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:58,835 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:27:58,835 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:27:58,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:27:58,837 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-11-18 20:27:58,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:27:58,839 INFO L85 PathProgramCache]: Analyzing trace with hash -611330474, now seen corresponding path program 1 times [2022-11-18 20:27:58,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:27:58,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207411717] [2022-11-18 20:27:58,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:58,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:27:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:58,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:27:58,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:27:58,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207411717] [2022-11-18 20:27:58,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207411717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:27:58,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:27:58,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:27:58,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846209416] [2022-11-18 20:27:58,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:27:58,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:27:58,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:27:58,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:27:58,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:27:58,957 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 437 [2022-11-18 20:27:58,960 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 302 transitions, 624 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:58,960 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:27:58,961 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 437 [2022-11-18 20:27:58,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:27:59,933 INFO L130 PetriNetUnfolder]: 1084/3009 cut-off events. [2022-11-18 20:27:59,934 INFO L131 PetriNetUnfolder]: For 171/527 co-relation queries the response was YES. [2022-11-18 20:27:59,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4634 conditions, 3009 events. 1084/3009 cut-off events. For 171/527 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19808 event pairs, 627 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 4562. Up to 1448 conditions per place. [2022-11-18 20:27:59,981 INFO L137 encePairwiseOnDemand]: 434/437 looper letters, 33 selfloop transitions, 2 changer transitions 0/301 dead transitions. [2022-11-18 20:27:59,982 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 301 transitions, 692 flow [2022-11-18 20:27:59,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:27:59,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:27:59,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1017 transitions. [2022-11-18 20:27:59,986 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7757437070938215 [2022-11-18 20:27:59,987 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1017 transitions. [2022-11-18 20:27:59,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1017 transitions. [2022-11-18 20:27:59,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:27:59,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1017 transitions. [2022-11-18 20:27:59,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:59,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:59,996 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:59,997 INFO L175 Difference]: Start difference. First operand has 302 places, 302 transitions, 624 flow. Second operand 3 states and 1017 transitions. [2022-11-18 20:27:59,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 301 transitions, 692 flow [2022-11-18 20:28:00,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 301 transitions, 688 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:00,006 INFO L231 Difference]: Finished difference. Result has 301 places, 301 transitions, 622 flow [2022-11-18 20:28:00,007 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=622, PETRI_PLACES=301, PETRI_TRANSITIONS=301} [2022-11-18 20:28:00,007 INFO L288 CegarLoopForPetriNet]: 377 programPoint places, -76 predicate places. [2022-11-18 20:28:00,008 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 301 transitions, 622 flow [2022-11-18 20:28:00,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:00,009 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:00,009 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:00,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:28:00,010 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-11-18 20:28:00,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:00,011 INFO L85 PathProgramCache]: Analyzing trace with hash 762602171, now seen corresponding path program 1 times [2022-11-18 20:28:00,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:00,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670720433] [2022-11-18 20:28:00,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:00,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:00,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:00,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:00,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670720433] [2022-11-18 20:28:00,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670720433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:00,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:00,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:00,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586707992] [2022-11-18 20:28:00,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:00,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:00,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:00,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:00,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:00,072 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 437 [2022-11-18 20:28:00,074 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 301 transitions, 622 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:00,074 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:00,075 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 437 [2022-11-18 20:28:00,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:00,883 INFO L130 PetriNetUnfolder]: 1084/3008 cut-off events. [2022-11-18 20:28:00,883 INFO L131 PetriNetUnfolder]: For 171/527 co-relation queries the response was YES. [2022-11-18 20:28:00,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4633 conditions, 3008 events. 1084/3008 cut-off events. For 171/527 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19817 event pairs, 627 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 4554. Up to 1448 conditions per place. [2022-11-18 20:28:00,920 INFO L137 encePairwiseOnDemand]: 434/437 looper letters, 33 selfloop transitions, 2 changer transitions 0/300 dead transitions. [2022-11-18 20:28:00,920 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 300 transitions, 690 flow [2022-11-18 20:28:00,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:00,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:00,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1017 transitions. [2022-11-18 20:28:00,926 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7757437070938215 [2022-11-18 20:28:00,926 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1017 transitions. [2022-11-18 20:28:00,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1017 transitions. [2022-11-18 20:28:00,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:00,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1017 transitions. [2022-11-18 20:28:00,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:00,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:00,937 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:00,937 INFO L175 Difference]: Start difference. First operand has 301 places, 301 transitions, 622 flow. Second operand 3 states and 1017 transitions. [2022-11-18 20:28:00,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 300 transitions, 690 flow [2022-11-18 20:28:00,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 300 transitions, 686 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:00,945 INFO L231 Difference]: Finished difference. Result has 300 places, 300 transitions, 620 flow [2022-11-18 20:28:00,946 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=620, PETRI_PLACES=300, PETRI_TRANSITIONS=300} [2022-11-18 20:28:00,949 INFO L288 CegarLoopForPetriNet]: 377 programPoint places, -77 predicate places. [2022-11-18 20:28:00,950 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 300 transitions, 620 flow [2022-11-18 20:28:00,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:00,951 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:00,951 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:00,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:28:00,952 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-11-18 20:28:00,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:00,952 INFO L85 PathProgramCache]: Analyzing trace with hash -723541924, now seen corresponding path program 1 times [2022-11-18 20:28:00,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:00,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422130905] [2022-11-18 20:28:00,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:00,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:01,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:01,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:01,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422130905] [2022-11-18 20:28:01,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422130905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:01,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:01,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:01,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60178490] [2022-11-18 20:28:01,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:01,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:01,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:01,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:01,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:01,049 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 437 [2022-11-18 20:28:01,051 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 300 transitions, 620 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:01,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:01,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 437 [2022-11-18 20:28:01,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:01,769 INFO L130 PetriNetUnfolder]: 1084/3007 cut-off events. [2022-11-18 20:28:01,770 INFO L131 PetriNetUnfolder]: For 171/527 co-relation queries the response was YES. [2022-11-18 20:28:01,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4632 conditions, 3007 events. 1084/3007 cut-off events. For 171/527 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19856 event pairs, 627 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 4546. Up to 1448 conditions per place. [2022-11-18 20:28:01,801 INFO L137 encePairwiseOnDemand]: 434/437 looper letters, 33 selfloop transitions, 2 changer transitions 0/299 dead transitions. [2022-11-18 20:28:01,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 299 transitions, 688 flow [2022-11-18 20:28:01,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:01,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:01,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1017 transitions. [2022-11-18 20:28:01,805 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7757437070938215 [2022-11-18 20:28:01,805 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1017 transitions. [2022-11-18 20:28:01,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1017 transitions. [2022-11-18 20:28:01,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:01,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1017 transitions. [2022-11-18 20:28:01,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:01,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:01,814 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:01,814 INFO L175 Difference]: Start difference. First operand has 300 places, 300 transitions, 620 flow. Second operand 3 states and 1017 transitions. [2022-11-18 20:28:01,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 299 transitions, 688 flow [2022-11-18 20:28:01,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 299 transitions, 684 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:01,821 INFO L231 Difference]: Finished difference. Result has 299 places, 299 transitions, 618 flow [2022-11-18 20:28:01,822 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=618, PETRI_PLACES=299, PETRI_TRANSITIONS=299} [2022-11-18 20:28:01,822 INFO L288 CegarLoopForPetriNet]: 377 programPoint places, -78 predicate places. [2022-11-18 20:28:01,823 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 299 transitions, 618 flow [2022-11-18 20:28:01,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:01,824 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:01,824 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:01,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:28:01,824 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-11-18 20:28:01,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:01,825 INFO L85 PathProgramCache]: Analyzing trace with hash 598288622, now seen corresponding path program 1 times [2022-11-18 20:28:01,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:01,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771134783] [2022-11-18 20:28:01,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:01,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:01,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:01,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:01,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771134783] [2022-11-18 20:28:01,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771134783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:01,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:01,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:01,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097249470] [2022-11-18 20:28:01,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:01,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:01,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:01,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:01,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:01,874 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 437 [2022-11-18 20:28:01,875 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 299 transitions, 618 flow. Second operand has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:01,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:01,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 437 [2022-11-18 20:28:01,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:02,591 INFO L130 PetriNetUnfolder]: 1084/3005 cut-off events. [2022-11-18 20:28:02,591 INFO L131 PetriNetUnfolder]: For 171/527 co-relation queries the response was YES. [2022-11-18 20:28:02,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4631 conditions, 3005 events. 1084/3005 cut-off events. For 171/527 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19779 event pairs, 627 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 4537. Up to 1448 conditions per place. [2022-11-18 20:28:02,626 INFO L137 encePairwiseOnDemand]: 434/437 looper letters, 35 selfloop transitions, 1 changer transitions 0/297 dead transitions. [2022-11-18 20:28:02,626 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 297 transitions, 686 flow [2022-11-18 20:28:02,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:02,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:02,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1010 transitions. [2022-11-18 20:28:02,630 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7704042715484363 [2022-11-18 20:28:02,631 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1010 transitions. [2022-11-18 20:28:02,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1010 transitions. [2022-11-18 20:28:02,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:02,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1010 transitions. [2022-11-18 20:28:02,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.6666666666667) internal successors, (1010), 3 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:02,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:02,640 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:02,640 INFO L175 Difference]: Start difference. First operand has 299 places, 299 transitions, 618 flow. Second operand 3 states and 1010 transitions. [2022-11-18 20:28:02,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 297 transitions, 686 flow [2022-11-18 20:28:02,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 297 transitions, 682 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:02,647 INFO L231 Difference]: Finished difference. Result has 297 places, 297 transitions, 612 flow [2022-11-18 20:28:02,648 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=612, PETRI_PLACES=297, PETRI_TRANSITIONS=297} [2022-11-18 20:28:02,649 INFO L288 CegarLoopForPetriNet]: 377 programPoint places, -80 predicate places. [2022-11-18 20:28:02,649 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 297 transitions, 612 flow [2022-11-18 20:28:02,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:02,650 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:02,650 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:02,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:28:02,650 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-11-18 20:28:02,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:02,651 INFO L85 PathProgramCache]: Analyzing trace with hash 35225940, now seen corresponding path program 1 times [2022-11-18 20:28:02,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:02,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963165740] [2022-11-18 20:28:02,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:02,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:02,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:02,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:02,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963165740] [2022-11-18 20:28:02,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963165740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:02,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:02,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:02,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462731884] [2022-11-18 20:28:02,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:02,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:02,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:02,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:02,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:02,716 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 437 [2022-11-18 20:28:02,717 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 297 transitions, 612 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:02,718 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:02,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 437 [2022-11-18 20:28:02,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:03,463 INFO L130 PetriNetUnfolder]: 1084/3004 cut-off events. [2022-11-18 20:28:03,463 INFO L131 PetriNetUnfolder]: For 171/527 co-relation queries the response was YES. [2022-11-18 20:28:03,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4628 conditions, 3004 events. 1084/3004 cut-off events. For 171/527 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19792 event pairs, 627 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 4535. Up to 1448 conditions per place. [2022-11-18 20:28:03,496 INFO L137 encePairwiseOnDemand]: 434/437 looper letters, 33 selfloop transitions, 2 changer transitions 0/296 dead transitions. [2022-11-18 20:28:03,496 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 296 transitions, 680 flow [2022-11-18 20:28:03,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:03,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:03,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1017 transitions. [2022-11-18 20:28:03,500 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7757437070938215 [2022-11-18 20:28:03,501 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1017 transitions. [2022-11-18 20:28:03,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1017 transitions. [2022-11-18 20:28:03,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:03,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1017 transitions. [2022-11-18 20:28:03,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:03,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:03,529 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:03,529 INFO L175 Difference]: Start difference. First operand has 297 places, 297 transitions, 612 flow. Second operand 3 states and 1017 transitions. [2022-11-18 20:28:03,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 296 transitions, 680 flow [2022-11-18 20:28:03,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 296 transitions, 679 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:28:03,536 INFO L231 Difference]: Finished difference. Result has 297 places, 296 transitions, 613 flow [2022-11-18 20:28:03,537 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=609, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=613, PETRI_PLACES=297, PETRI_TRANSITIONS=296} [2022-11-18 20:28:03,538 INFO L288 CegarLoopForPetriNet]: 377 programPoint places, -80 predicate places. [2022-11-18 20:28:03,538 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 296 transitions, 613 flow [2022-11-18 20:28:03,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:03,539 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:03,539 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:03,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:28:03,540 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-11-18 20:28:03,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:03,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1194104733, now seen corresponding path program 1 times [2022-11-18 20:28:03,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:03,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881115457] [2022-11-18 20:28:03,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:03,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:04,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:04,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:04,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881115457] [2022-11-18 20:28:04,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881115457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:04,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:04,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:28:04,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143263880] [2022-11-18 20:28:04,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:04,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:28:04,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:04,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:28:04,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:28:04,251 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 437 [2022-11-18 20:28:04,253 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 296 transitions, 613 flow. Second operand has 6 states, 6 states have (on average 269.8333333333333) internal successors, (1619), 6 states have internal predecessors, (1619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:04,253 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:04,253 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 437 [2022-11-18 20:28:04,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand