./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5adb2df-989b-4d5c-a6dc-99896acc359c/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5adb2df-989b-4d5c-a6dc-99896acc359c/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_c5adb2df-989b-4d5c-a6dc-99896acc359c/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5adb2df-989b-4d5c-a6dc-99896acc359c/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5adb2df-989b-4d5c-a6dc-99896acc359c/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_c5adb2df-989b-4d5c-a6dc-99896acc359c/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 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 --- 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 20:41:03,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:41:03,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:41:03,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:41:03,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:41:03,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:41:03,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:41:03,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:41:03,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:41:03,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:41:03,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:41:03,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:41:03,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:41:03,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:41:03,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:41:03,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:41:03,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:41:03,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:41:03,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:41:03,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:41:03,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:41:03,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:41:03,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:41:03,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:41:03,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:41:03,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:41:03,332 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:41:03,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:41:03,336 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:41:03,337 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:41:03,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:41:03,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:41:03,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:41:03,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:41:03,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:41:03,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:41:03,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:41:03,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:41:03,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:41:03,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:41:03,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:41:03,352 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5adb2df-989b-4d5c-a6dc-99896acc359c/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:41:03,402 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:41:03,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:41:03,403 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:41:03,403 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:41:03,405 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:41:03,405 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:41:03,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:41:03,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:41:03,406 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:41:03,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:41:03,408 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:41:03,408 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:41:03,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:41:03,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:41:03,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:41:03,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:41:03,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:41:03,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:41:03,410 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:41:03,410 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:41:03,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:41:03,411 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:41:03,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:41:03,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:41:03,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:41:03,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:41:03,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:41:03,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:41:03,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:41:03,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:41:03,415 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:41:03,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:41:03,416 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:41:03,416 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:41:03,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:41:03,416 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_c5adb2df-989b-4d5c-a6dc-99896acc359c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5adb2df-989b-4d5c-a6dc-99896acc359c/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 [2022-11-18 20:41:03,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:41:03,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:41:03,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:41:03,813 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:41:03,814 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:41:03,816 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5adb2df-989b-4d5c-a6dc-99896acc359c/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2022-11-18 20:41:03,911 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5adb2df-989b-4d5c-a6dc-99896acc359c/bin/uautomizer-TMbwUNV5ro/data/f69eff193/dd820433cc584f9e9a497869c96309d3/FLAGda4f93cdd [2022-11-18 20:41:04,585 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:41:04,586 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5adb2df-989b-4d5c-a6dc-99896acc359c/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2022-11-18 20:41:04,612 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5adb2df-989b-4d5c-a6dc-99896acc359c/bin/uautomizer-TMbwUNV5ro/data/f69eff193/dd820433cc584f9e9a497869c96309d3/FLAGda4f93cdd [2022-11-18 20:41:04,632 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5adb2df-989b-4d5c-a6dc-99896acc359c/bin/uautomizer-TMbwUNV5ro/data/f69eff193/dd820433cc584f9e9a497869c96309d3 [2022-11-18 20:41:04,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:41:04,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:41:04,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:41:04,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:41:04,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:41:04,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:41:04" (1/1) ... [2022-11-18 20:41:04,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c1700a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:04, skipping insertion in model container [2022-11-18 20:41:04,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:41:04" (1/1) ... [2022-11-18 20:41:04,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:41:04,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:41:05,116 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_c5adb2df-989b-4d5c-a6dc-99896acc359c/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2815,2828] [2022-11-18 20:41:05,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:41:05,145 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:41:05,221 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_c5adb2df-989b-4d5c-a6dc-99896acc359c/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2815,2828] [2022-11-18 20:41:05,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:41:05,258 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:41:05,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:05 WrapperNode [2022-11-18 20:41:05,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:41:05,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:41:05,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:41:05,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:41:05,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:05" (1/1) ... [2022-11-18 20:41:05,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:05" (1/1) ... [2022-11-18 20:41:05,355 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 371 [2022-11-18 20:41:05,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:41:05,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:41:05,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:41:05,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:41:05,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:05" (1/1) ... [2022-11-18 20:41:05,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:05" (1/1) ... [2022-11-18 20:41:05,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:05" (1/1) ... [2022-11-18 20:41:05,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:05" (1/1) ... [2022-11-18 20:41:05,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:05" (1/1) ... [2022-11-18 20:41:05,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:05" (1/1) ... [2022-11-18 20:41:05,461 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:05" (1/1) ... [2022-11-18 20:41:05,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:05" (1/1) ... [2022-11-18 20:41:05,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:41:05,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:41:05,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:41:05,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:41:05,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:05" (1/1) ... [2022-11-18 20:41:05,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:41:05,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5adb2df-989b-4d5c-a6dc-99896acc359c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:41:05,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5adb2df-989b-4d5c-a6dc-99896acc359c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:41:05,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5adb2df-989b-4d5c-a6dc-99896acc359c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:41:05,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:41:05,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:41:05,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:41:05,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:41:05,575 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:41:05,575 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:41:05,575 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:41:05,575 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:41:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:41:05,576 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:41:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:41:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:41:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:41:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:41:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:41:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:41:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:41:05,579 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 20:41:05,730 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:41:05,733 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:41:06,905 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:41:07,267 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:41:07,267 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-18 20:41:07,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:41:07 BoogieIcfgContainer [2022-11-18 20:41:07,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:41:07,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:41:07,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:41:07,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:41:07,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:41:04" (1/3) ... [2022-11-18 20:41:07,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275a3fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:41:07, skipping insertion in model container [2022-11-18 20:41:07,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:05" (2/3) ... [2022-11-18 20:41:07,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275a3fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:41:07, skipping insertion in model container [2022-11-18 20:41:07,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:41:07" (3/3) ... [2022-11-18 20:41:07,284 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2022-11-18 20:41:07,299 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:41:07,313 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:41:07,313 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2022-11-18 20:41:07,313 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:41:07,507 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:41:07,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 511 places, 528 transitions, 1080 flow [2022-11-18 20:41:07,841 INFO L130 PetriNetUnfolder]: 27/525 cut-off events. [2022-11-18 20:41:07,841 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:41:07,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 525 events. 27/525 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 624 event pairs, 0 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 421. Up to 3 conditions per place. [2022-11-18 20:41:07,859 INFO L82 GeneralOperation]: Start removeDead. Operand has 511 places, 528 transitions, 1080 flow [2022-11-18 20:41:07,871 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 464 places, 478 transitions, 974 flow [2022-11-18 20:41:07,883 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:41:07,894 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;@39d2131e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:41:07,895 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2022-11-18 20:41:07,907 INFO L130 PetriNetUnfolder]: 0/27 cut-off events. [2022-11-18 20:41:07,908 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:41:07,908 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:07,909 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:41:07,911 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:07,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:07,917 INFO L85 PathProgramCache]: Analyzing trace with hash -945823295, now seen corresponding path program 1 times [2022-11-18 20:41:07,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:07,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500820835] [2022-11-18 20:41:07,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:07,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:08,279 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 20:41:08,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:08,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500820835] [2022-11-18 20:41:08,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500820835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:08,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:08,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:41:08,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791917745] [2022-11-18 20:41:08,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:08,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:41:08,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:08,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:41:08,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:41:08,357 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 459 out of 528 [2022-11-18 20:41:08,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 478 transitions, 974 flow. Second operand has 3 states, 3 states have (on average 460.3333333333333) internal successors, (1381), 3 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states 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 20:41:08,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:08,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 459 of 528 [2022-11-18 20:41:08,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:09,252 INFO L130 PetriNetUnfolder]: 390/1591 cut-off events. [2022-11-18 20:41:09,253 INFO L131 PetriNetUnfolder]: For 140/293 co-relation queries the response was YES. [2022-11-18 20:41:09,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2229 conditions, 1591 events. 390/1591 cut-off events. For 140/293 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 9175 event pairs, 255 based on Foata normal form. 12/1253 useless extension candidates. Maximal degree in co-relation 1742. Up to 545 conditions per place. [2022-11-18 20:41:09,278 INFO L137 encePairwiseOnDemand]: 496/528 looper letters, 33 selfloop transitions, 2 changer transitions 9/448 dead transitions. [2022-11-18 20:41:09,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 448 transitions, 984 flow [2022-11-18 20:41:09,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:41:09,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:41:09,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-11-18 20:41:09,302 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9103535353535354 [2022-11-18 20:41:09,303 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-11-18 20:41:09,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-11-18 20:41:09,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:09,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-11-18 20:41:09,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.6666666666667) internal successors, (1442), 3 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states 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 20:41:09,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:09,330 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:09,332 INFO L175 Difference]: Start difference. First operand has 464 places, 478 transitions, 974 flow. Second operand 3 states and 1442 transitions. [2022-11-18 20:41:09,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 448 transitions, 984 flow [2022-11-18 20:41:09,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 448 transitions, 972 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 20:41:09,352 INFO L231 Difference]: Finished difference. Result has 445 places, 439 transitions, 888 flow [2022-11-18 20:41:09,355 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=888, PETRI_PLACES=445, PETRI_TRANSITIONS=439} [2022-11-18 20:41:09,359 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -19 predicate places. [2022-11-18 20:41:09,360 INFO L495 AbstractCegarLoop]: Abstraction has has 445 places, 439 transitions, 888 flow [2022-11-18 20:41:09,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 460.3333333333333) internal successors, (1381), 3 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states 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 20:41:09,361 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:09,362 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] [2022-11-18 20:41:09,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:41:09,362 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:09,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:09,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1337293528, now seen corresponding path program 1 times [2022-11-18 20:41:09,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:09,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575313397] [2022-11-18 20:41:09,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:09,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:09,477 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 20:41:09,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:09,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575313397] [2022-11-18 20:41:09,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575313397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:09,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:09,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:41:09,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795892353] [2022-11-18 20:41:09,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:09,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:41:09,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:09,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:41:09,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:41:09,485 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 462 out of 528 [2022-11-18 20:41:09,487 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 439 transitions, 888 flow. Second operand has 3 states, 3 states have (on average 463.3333333333333) internal successors, (1390), 3 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states 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 20:41:09,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:09,487 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 462 of 528 [2022-11-18 20:41:09,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:09,948 INFO L130 PetriNetUnfolder]: 223/1238 cut-off events. [2022-11-18 20:41:09,949 INFO L131 PetriNetUnfolder]: For 27/107 co-relation queries the response was YES. [2022-11-18 20:41:09,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1560 conditions, 1238 events. 223/1238 cut-off events. For 27/107 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6550 event pairs, 128 based on Foata normal form. 0/1045 useless extension candidates. Maximal degree in co-relation 1523. Up to 299 conditions per place. [2022-11-18 20:41:09,964 INFO L137 encePairwiseOnDemand]: 520/528 looper letters, 24 selfloop transitions, 1 changer transitions 0/432 dead transitions. [2022-11-18 20:41:09,964 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 432 transitions, 924 flow [2022-11-18 20:41:09,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:41:09,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:41:09,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1418 transitions. [2022-11-18 20:41:09,969 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8952020202020202 [2022-11-18 20:41:09,970 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1418 transitions. [2022-11-18 20:41:09,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1418 transitions. [2022-11-18 20:41:09,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:09,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1418 transitions. [2022-11-18 20:41:09,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 472.6666666666667) internal successors, (1418), 3 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states 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 20:41:09,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:09,982 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:09,982 INFO L175 Difference]: Start difference. First operand has 445 places, 439 transitions, 888 flow. Second operand 3 states and 1418 transitions. [2022-11-18 20:41:09,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 432 transitions, 924 flow [2022-11-18 20:41:09,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 432 transitions, 920 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:41:09,994 INFO L231 Difference]: Finished difference. Result has 429 places, 432 transitions, 872 flow [2022-11-18 20:41:09,995 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=872, PETRI_PLACES=429, PETRI_TRANSITIONS=432} [2022-11-18 20:41:09,997 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -35 predicate places. [2022-11-18 20:41:09,997 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 432 transitions, 872 flow [2022-11-18 20:41:09,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 463.3333333333333) internal successors, (1390), 3 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states 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 20:41:09,999 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:09,999 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:41:09,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:41:10,000 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:10,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:10,003 INFO L85 PathProgramCache]: Analyzing trace with hash 84698391, now seen corresponding path program 1 times [2022-11-18 20:41:10,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:10,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600417587] [2022-11-18 20:41:10,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:10,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:10,150 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 20:41:10,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:10,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600417587] [2022-11-18 20:41:10,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600417587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:10,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:10,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:41:10,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611009910] [2022-11-18 20:41:10,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:10,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:41:10,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:10,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:41:10,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:41:10,157 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 528 [2022-11-18 20:41:10,159 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 432 transitions, 872 flow. Second operand has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states 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 20:41:10,159 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:10,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 528 [2022-11-18 20:41:10,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:10,675 INFO L130 PetriNetUnfolder]: 157/1366 cut-off events. [2022-11-18 20:41:10,675 INFO L131 PetriNetUnfolder]: For 23/26 co-relation queries the response was YES. [2022-11-18 20:41:10,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1605 conditions, 1366 events. 157/1366 cut-off events. For 23/26 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7571 event pairs, 78 based on Foata normal form. 0/1150 useless extension candidates. Maximal degree in co-relation 1569. Up to 212 conditions per place. [2022-11-18 20:41:10,691 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 24 selfloop transitions, 2 changer transitions 0/431 dead transitions. [2022-11-18 20:41:10,691 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 431 transitions, 922 flow [2022-11-18 20:41:10,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:41:10,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:41:10,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1431 transitions. [2022-11-18 20:41:10,696 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9034090909090909 [2022-11-18 20:41:10,696 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1431 transitions. [2022-11-18 20:41:10,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1431 transitions. [2022-11-18 20:41:10,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:10,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1431 transitions. [2022-11-18 20:41:10,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.0) internal successors, (1431), 3 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states 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 20:41:10,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:10,708 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:10,708 INFO L175 Difference]: Start difference. First operand has 429 places, 432 transitions, 872 flow. Second operand 3 states and 1431 transitions. [2022-11-18 20:41:10,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 431 transitions, 922 flow [2022-11-18 20:41:10,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 431 transitions, 921 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:41:10,718 INFO L231 Difference]: Finished difference. Result has 429 places, 431 transitions, 873 flow [2022-11-18 20:41:10,719 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=873, PETRI_PLACES=429, PETRI_TRANSITIONS=431} [2022-11-18 20:41:10,720 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -35 predicate places. [2022-11-18 20:41:10,720 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 431 transitions, 873 flow [2022-11-18 20:41:10,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states 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 20:41:10,722 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:10,722 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] [2022-11-18 20:41:10,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:41:10,723 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:10,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:10,723 INFO L85 PathProgramCache]: Analyzing trace with hash -846826309, now seen corresponding path program 1 times [2022-11-18 20:41:10,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:10,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151143601] [2022-11-18 20:41:10,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:10,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:11,538 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 20:41:11,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:11,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151143601] [2022-11-18 20:41:11,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151143601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:11,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:11,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:41:11,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715568542] [2022-11-18 20:41:11,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:11,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:41:11,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:11,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:41:11,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:41:11,556 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 528 [2022-11-18 20:41:11,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 431 transitions, 873 flow. Second operand has 6 states, 6 states have (on average 370.8333333333333) internal successors, (2225), 6 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states 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 20:41:11,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:11,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 528 [2022-11-18 20:41:11,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:14,852 INFO L130 PetriNetUnfolder]: 2943/6655 cut-off events. [2022-11-18 20:41:14,853 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:41:14,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10875 conditions, 6655 events. 2943/6655 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 53058 event pairs, 2244 based on Foata normal form. 0/5729 useless extension candidates. Maximal degree in co-relation 10840. Up to 4124 conditions per place. [2022-11-18 20:41:14,938 INFO L137 encePairwiseOnDemand]: 510/528 looper letters, 108 selfloop transitions, 15 changer transitions 0/428 dead transitions. [2022-11-18 20:41:14,939 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 428 transitions, 1113 flow [2022-11-18 20:41:14,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:41:14,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:41:14,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2340 transitions. [2022-11-18 20:41:14,945 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7386363636363636 [2022-11-18 20:41:14,946 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2340 transitions. [2022-11-18 20:41:14,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2340 transitions. [2022-11-18 20:41:14,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:14,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2340 transitions. [2022-11-18 20:41:14,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 390.0) internal successors, (2340), 6 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:41:14,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 20:41:14,965 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 20:41:14,965 INFO L175 Difference]: Start difference. First operand has 429 places, 431 transitions, 873 flow. Second operand 6 states and 2340 transitions. [2022-11-18 20:41:14,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 428 transitions, 1113 flow [2022-11-18 20:41:14,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 428 transitions, 1109 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:41:14,976 INFO L231 Difference]: Finished difference. Result has 429 places, 428 transitions, 893 flow [2022-11-18 20:41:14,977 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=863, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=893, PETRI_PLACES=429, PETRI_TRANSITIONS=428} [2022-11-18 20:41:14,978 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -35 predicate places. [2022-11-18 20:41:14,978 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 428 transitions, 893 flow [2022-11-18 20:41:14,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 370.8333333333333) internal successors, (2225), 6 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states 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 20:41:14,980 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:14,981 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] [2022-11-18 20:41:14,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:41:14,981 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:14,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:14,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1901775103, now seen corresponding path program 1 times [2022-11-18 20:41:14,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:14,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876921446] [2022-11-18 20:41:14,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:14,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:15,080 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 20:41:15,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:15,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876921446] [2022-11-18 20:41:15,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876921446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:15,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:15,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:41:15,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841325128] [2022-11-18 20:41:15,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:15,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:41:15,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:15,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:41:15,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:41:15,089 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 528 [2022-11-18 20:41:15,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 428 transitions, 893 flow. Second operand has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states 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 20:41:15,092 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:15,092 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 528 [2022-11-18 20:41:15,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:15,553 INFO L130 PetriNetUnfolder]: 154/1308 cut-off events. [2022-11-18 20:41:15,553 INFO L131 PetriNetUnfolder]: For 20/23 co-relation queries the response was YES. [2022-11-18 20:41:15,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1556 conditions, 1308 events. 154/1308 cut-off events. For 20/23 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6918 event pairs, 78 based on Foata normal form. 0/1105 useless extension candidates. Maximal degree in co-relation 1520. Up to 206 conditions per place. [2022-11-18 20:41:15,575 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 24 selfloop transitions, 2 changer transitions 0/427 dead transitions. [2022-11-18 20:41:15,575 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 427 transitions, 943 flow [2022-11-18 20:41:15,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:41:15,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:41:15,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1431 transitions. [2022-11-18 20:41:15,581 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9034090909090909 [2022-11-18 20:41:15,581 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1431 transitions. [2022-11-18 20:41:15,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1431 transitions. [2022-11-18 20:41:15,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:15,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1431 transitions. [2022-11-18 20:41:15,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.0) internal successors, (1431), 3 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states 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 20:41:15,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:15,593 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:15,594 INFO L175 Difference]: Start difference. First operand has 429 places, 428 transitions, 893 flow. Second operand 3 states and 1431 transitions. [2022-11-18 20:41:15,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 427 transitions, 943 flow [2022-11-18 20:41:15,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 427 transitions, 913 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:41:15,605 INFO L231 Difference]: Finished difference. Result has 425 places, 427 transitions, 865 flow [2022-11-18 20:41:15,606 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=861, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=865, PETRI_PLACES=425, PETRI_TRANSITIONS=427} [2022-11-18 20:41:15,609 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -39 predicate places. [2022-11-18 20:41:15,610 INFO L495 AbstractCegarLoop]: Abstraction has has 425 places, 427 transitions, 865 flow [2022-11-18 20:41:15,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states 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 20:41:15,612 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:15,612 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:41:15,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:41:15,613 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:15,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:15,614 INFO L85 PathProgramCache]: Analyzing trace with hash 169984604, now seen corresponding path program 1 times [2022-11-18 20:41:15,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:15,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777286876] [2022-11-18 20:41:15,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:15,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:15,724 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 20:41:15,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:15,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777286876] [2022-11-18 20:41:15,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777286876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:15,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:15,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:41:15,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199474350] [2022-11-18 20:41:15,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:15,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:41:15,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:15,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:41:15,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:41:15,732 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 528 [2022-11-18 20:41:15,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 427 transitions, 865 flow. Second operand has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states 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 20:41:15,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:15,736 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 528 [2022-11-18 20:41:15,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:15,956 INFO L130 PetriNetUnfolder]: 37/530 cut-off events. [2022-11-18 20:41:15,956 INFO L131 PetriNetUnfolder]: For 14/17 co-relation queries the response was YES. [2022-11-18 20:41:15,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 530 events. 37/530 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1118 event pairs, 12 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 553. Up to 48 conditions per place. [2022-11-18 20:41:15,961 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 12 selfloop transitions, 2 changer transitions 0/426 dead transitions. [2022-11-18 20:41:15,961 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 426 transitions, 891 flow [2022-11-18 20:41:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:41:15,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:41:15,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1455 transitions. [2022-11-18 20:41:15,966 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9185606060606061 [2022-11-18 20:41:15,966 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1455 transitions. [2022-11-18 20:41:15,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1455 transitions. [2022-11-18 20:41:15,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:15,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1455 transitions. [2022-11-18 20:41:15,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states 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 20:41:15,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:15,980 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:15,980 INFO L175 Difference]: Start difference. First operand has 425 places, 427 transitions, 865 flow. Second operand 3 states and 1455 transitions. [2022-11-18 20:41:15,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 426 transitions, 891 flow [2022-11-18 20:41:15,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 426 transitions, 887 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:41:15,990 INFO L231 Difference]: Finished difference. Result has 424 places, 426 transitions, 863 flow [2022-11-18 20:41:15,991 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=859, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=863, PETRI_PLACES=424, PETRI_TRANSITIONS=426} [2022-11-18 20:41:15,994 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -40 predicate places. [2022-11-18 20:41:15,995 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 426 transitions, 863 flow [2022-11-18 20:41:15,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states 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 20:41:15,996 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:15,996 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:41:15,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:41:15,997 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:15,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:15,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1408339223, now seen corresponding path program 1 times [2022-11-18 20:41:15,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:15,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885364196] [2022-11-18 20:41:15,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:16,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:16,083 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 20:41:16,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:16,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885364196] [2022-11-18 20:41:16,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885364196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:16,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:16,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:41:16,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367483773] [2022-11-18 20:41:16,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:16,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:41:16,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:16,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:41:16,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:41:16,098 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 528 [2022-11-18 20:41:16,100 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 426 transitions, 863 flow. Second operand has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states 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 20:41:16,100 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:16,100 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 528 [2022-11-18 20:41:16,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:16,369 INFO L130 PetriNetUnfolder]: 37/529 cut-off events. [2022-11-18 20:41:16,369 INFO L131 PetriNetUnfolder]: For 14/17 co-relation queries the response was YES. [2022-11-18 20:41:16,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 529 events. 37/529 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1117 event pairs, 12 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 552. Up to 48 conditions per place. [2022-11-18 20:41:16,374 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 12 selfloop transitions, 2 changer transitions 0/425 dead transitions. [2022-11-18 20:41:16,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 425 transitions, 889 flow [2022-11-18 20:41:16,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:41:16,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:41:16,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1455 transitions. [2022-11-18 20:41:16,381 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9185606060606061 [2022-11-18 20:41:16,381 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1455 transitions. [2022-11-18 20:41:16,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1455 transitions. [2022-11-18 20:41:16,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:16,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1455 transitions. [2022-11-18 20:41:16,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states 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 20:41:16,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:16,394 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:16,394 INFO L175 Difference]: Start difference. First operand has 424 places, 426 transitions, 863 flow. Second operand 3 states and 1455 transitions. [2022-11-18 20:41:16,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 425 transitions, 889 flow [2022-11-18 20:41:16,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 425 transitions, 885 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:41:16,406 INFO L231 Difference]: Finished difference. Result has 423 places, 425 transitions, 861 flow [2022-11-18 20:41:16,407 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=857, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=861, PETRI_PLACES=423, PETRI_TRANSITIONS=425} [2022-11-18 20:41:16,408 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -41 predicate places. [2022-11-18 20:41:16,408 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 425 transitions, 861 flow [2022-11-18 20:41:16,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states 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 20:41:16,429 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:16,429 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:41:16,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:41:16,430 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:16,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:16,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1702728360, now seen corresponding path program 1 times [2022-11-18 20:41:16,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:16,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071235512] [2022-11-18 20:41:16,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:16,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:16,518 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 20:41:16,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:16,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071235512] [2022-11-18 20:41:16,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071235512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:16,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:16,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:41:16,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61889641] [2022-11-18 20:41:16,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:16,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:41:16,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:16,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:41:16,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:41:16,525 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 528 [2022-11-18 20:41:16,528 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 425 transitions, 861 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states 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 20:41:16,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:16,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 528 [2022-11-18 20:41:16,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:16,999 INFO L130 PetriNetUnfolder]: 129/1285 cut-off events. [2022-11-18 20:41:16,999 INFO L131 PetriNetUnfolder]: For 23/26 co-relation queries the response was YES. [2022-11-18 20:41:17,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1469 conditions, 1285 events. 129/1285 cut-off events. For 23/26 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6852 event pairs, 56 based on Foata normal form. 0/1105 useless extension candidates. Maximal degree in co-relation 1434. Up to 160 conditions per place. [2022-11-18 20:41:17,013 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 18 selfloop transitions, 1 changer transitions 0/421 dead transitions. [2022-11-18 20:41:17,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 421 transitions, 891 flow [2022-11-18 20:41:17,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:41:17,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:41:17,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1436 transitions. [2022-11-18 20:41:17,019 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065656565656566 [2022-11-18 20:41:17,020 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1436 transitions. [2022-11-18 20:41:17,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1436 transitions. [2022-11-18 20:41:17,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:17,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1436 transitions. [2022-11-18 20:41:17,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 478.6666666666667) internal successors, (1436), 3 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 20:41:17,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:17,031 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:17,031 INFO L175 Difference]: Start difference. First operand has 423 places, 425 transitions, 861 flow. Second operand 3 states and 1436 transitions. [2022-11-18 20:41:17,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 421 transitions, 891 flow [2022-11-18 20:41:17,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 421 transitions, 887 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:41:17,044 INFO L231 Difference]: Finished difference. Result has 419 places, 421 transitions, 851 flow [2022-11-18 20:41:17,045 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=849, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=851, PETRI_PLACES=419, PETRI_TRANSITIONS=421} [2022-11-18 20:41:17,047 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -45 predicate places. [2022-11-18 20:41:17,048 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 421 transitions, 851 flow [2022-11-18 20:41:17,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states 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 20:41:17,049 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:17,049 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:41:17,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:41:17,050 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:17,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:17,051 INFO L85 PathProgramCache]: Analyzing trace with hash 84189388, now seen corresponding path program 1 times [2022-11-18 20:41:17,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:17,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805743923] [2022-11-18 20:41:17,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:17,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:18,022 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 20:41:18,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:18,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805743923] [2022-11-18 20:41:18,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805743923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:18,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:18,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:41:18,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161324682] [2022-11-18 20:41:18,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:18,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:41:18,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:18,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:41:18,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:41:18,028 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-18 20:41:18,031 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 421 transitions, 851 flow. Second operand has 6 states, 6 states have (on average 397.3333333333333) internal successors, (2384), 6 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states 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 20:41:18,031 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:18,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-18 20:41:18,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:21,519 INFO L130 PetriNetUnfolder]: 3172/11360 cut-off events. [2022-11-18 20:41:21,519 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-18 20:41:21,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15924 conditions, 11360 events. 3172/11360 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 124356 event pairs, 924 based on Foata normal form. 0/10143 useless extension candidates. Maximal degree in co-relation 15888. Up to 2825 conditions per place. [2022-11-18 20:41:21,618 INFO L137 encePairwiseOnDemand]: 521/528 looper letters, 140 selfloop transitions, 5 changer transitions 0/470 dead transitions. [2022-11-18 20:41:21,618 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 470 transitions, 1243 flow [2022-11-18 20:41:21,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:41:21,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:41:21,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2523 transitions. [2022-11-18 20:41:21,625 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7964015151515151 [2022-11-18 20:41:21,626 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2523 transitions. [2022-11-18 20:41:21,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2523 transitions. [2022-11-18 20:41:21,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:21,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2523 transitions. [2022-11-18 20:41:21,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 420.5) internal successors, (2523), 6 states have internal predecessors, (2523), 0 states have call successors, (0), 0 states 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 20:41:21,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 20:41:21,643 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 20:41:21,643 INFO L175 Difference]: Start difference. First operand has 419 places, 421 transitions, 851 flow. Second operand 6 states and 2523 transitions. [2022-11-18 20:41:21,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 470 transitions, 1243 flow [2022-11-18 20:41:21,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 470 transitions, 1242 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:41:21,654 INFO L231 Difference]: Finished difference. Result has 422 places, 420 transitions, 862 flow [2022-11-18 20:41:21,655 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=862, PETRI_PLACES=422, PETRI_TRANSITIONS=420} [2022-11-18 20:41:21,656 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -42 predicate places. [2022-11-18 20:41:21,656 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 420 transitions, 862 flow [2022-11-18 20:41:21,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 397.3333333333333) internal successors, (2384), 6 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states 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 20:41:21,663 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:21,664 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:41:21,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:41:21,664 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:21,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:21,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1088711712, now seen corresponding path program 1 times [2022-11-18 20:41:21,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:21,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370726318] [2022-11-18 20:41:21,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:21,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:21,758 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 20:41:21,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:21,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370726318] [2022-11-18 20:41:21,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370726318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:21,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:21,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:41:21,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951690595] [2022-11-18 20:41:21,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:21,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:41:21,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:21,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:41:21,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:41:21,765 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 528 [2022-11-18 20:41:21,767 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 420 transitions, 862 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states 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 20:41:21,768 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:21,768 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 528 [2022-11-18 20:41:21,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:22,132 INFO L130 PetriNetUnfolder]: 162/1308 cut-off events. [2022-11-18 20:41:22,132 INFO L131 PetriNetUnfolder]: For 87/95 co-relation queries the response was YES. [2022-11-18 20:41:22,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1658 conditions, 1308 events. 162/1308 cut-off events. For 87/95 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 7001 event pairs, 80 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 1621. Up to 224 conditions per place. [2022-11-18 20:41:22,142 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 22 selfloop transitions, 2 changer transitions 0/419 dead transitions. [2022-11-18 20:41:22,143 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 419 transitions, 908 flow [2022-11-18 20:41:22,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:41:22,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:41:22,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1437 transitions. [2022-11-18 20:41:22,148 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9071969696969697 [2022-11-18 20:41:22,148 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1437 transitions. [2022-11-18 20:41:22,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1437 transitions. [2022-11-18 20:41:22,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:22,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1437 transitions. [2022-11-18 20:41:22,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 479.0) internal successors, (1437), 3 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states 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 20:41:22,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:22,158 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:22,158 INFO L175 Difference]: Start difference. First operand has 422 places, 420 transitions, 862 flow. Second operand 3 states and 1437 transitions. [2022-11-18 20:41:22,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 419 transitions, 908 flow [2022-11-18 20:41:22,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 419 transitions, 900 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:41:22,179 INFO L231 Difference]: Finished difference. Result has 419 places, 419 transitions, 856 flow [2022-11-18 20:41:22,180 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=856, PETRI_PLACES=419, PETRI_TRANSITIONS=419} [2022-11-18 20:41:22,181 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -45 predicate places. [2022-11-18 20:41:22,181 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 419 transitions, 856 flow [2022-11-18 20:41:22,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states 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 20:41:22,182 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:22,183 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:41:22,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:41:22,183 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:22,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:22,184 INFO L85 PathProgramCache]: Analyzing trace with hash -543481836, now seen corresponding path program 1 times [2022-11-18 20:41:22,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:22,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749214115] [2022-11-18 20:41:22,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:22,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:22,260 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 20:41:22,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:22,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749214115] [2022-11-18 20:41:22,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749214115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:22,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:22,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:41:22,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648621921] [2022-11-18 20:41:22,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:22,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:41:22,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:22,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:41:22,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:41:22,265 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 528 [2022-11-18 20:41:22,267 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 419 transitions, 856 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states 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 20:41:22,267 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:22,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 528 [2022-11-18 20:41:22,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:22,600 INFO L130 PetriNetUnfolder]: 131/1285 cut-off events. [2022-11-18 20:41:22,600 INFO L131 PetriNetUnfolder]: For 68/73 co-relation queries the response was YES. [2022-11-18 20:41:22,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1522 conditions, 1285 events. 131/1285 cut-off events. For 68/73 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6904 event pairs, 58 based on Foata normal form. 0/1125 useless extension candidates. Maximal degree in co-relation 1486. Up to 164 conditions per place. [2022-11-18 20:41:22,613 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 19 selfloop transitions, 1 changer transitions 0/415 dead transitions. [2022-11-18 20:41:22,613 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 415 transitions, 888 flow [2022-11-18 20:41:22,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:41:22,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:41:22,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1436 transitions. [2022-11-18 20:41:22,618 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065656565656566 [2022-11-18 20:41:22,618 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1436 transitions. [2022-11-18 20:41:22,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1436 transitions. [2022-11-18 20:41:22,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:22,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1436 transitions. [2022-11-18 20:41:22,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 478.6666666666667) internal successors, (1436), 3 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 20:41:22,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:22,629 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:22,629 INFO L175 Difference]: Start difference. First operand has 419 places, 419 transitions, 856 flow. Second operand 3 states and 1436 transitions. [2022-11-18 20:41:22,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 415 transitions, 888 flow [2022-11-18 20:41:22,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 415 transitions, 884 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:41:22,639 INFO L231 Difference]: Finished difference. Result has 415 places, 415 transitions, 846 flow [2022-11-18 20:41:22,640 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=846, PETRI_PLACES=415, PETRI_TRANSITIONS=415} [2022-11-18 20:41:22,641 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -49 predicate places. [2022-11-18 20:41:22,641 INFO L495 AbstractCegarLoop]: Abstraction has has 415 places, 415 transitions, 846 flow [2022-11-18 20:41:22,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states 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 20:41:22,642 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:22,643 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:41:22,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:41:22,643 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:22,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:22,645 INFO L85 PathProgramCache]: Analyzing trace with hash -545976828, now seen corresponding path program 1 times [2022-11-18 20:41:22,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:22,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112830110] [2022-11-18 20:41:22,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:22,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:23,179 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 20:41:23,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:23,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112830110] [2022-11-18 20:41:23,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112830110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:23,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:23,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:41:23,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319594644] [2022-11-18 20:41:23,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:23,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:41:23,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:23,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:41:23,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:41:23,185 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-18 20:41:23,188 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 415 transitions, 846 flow. Second operand has 6 states, 6 states have (on average 398.1666666666667) internal successors, (2389), 6 states have internal predecessors, (2389), 0 states have call successors, (0), 0 states 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 20:41:23,188 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:23,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-18 20:41:23,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:26,366 INFO L130 PetriNetUnfolder]: 3172/11292 cut-off events. [2022-11-18 20:41:26,367 INFO L131 PetriNetUnfolder]: For 1242/1242 co-relation queries the response was YES. [2022-11-18 20:41:26,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17087 conditions, 11292 events. 3172/11292 cut-off events. For 1242/1242 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 123407 event pairs, 924 based on Foata normal form. 0/10123 useless extension candidates. Maximal degree in co-relation 17050. Up to 2830 conditions per place. [2022-11-18 20:41:26,465 INFO L137 encePairwiseOnDemand]: 521/528 looper letters, 138 selfloop transitions, 5 changer transitions 0/463 dead transitions. [2022-11-18 20:41:26,465 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 463 transitions, 1232 flow [2022-11-18 20:41:26,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:41:26,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:41:26,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2521 transitions. [2022-11-18 20:41:26,474 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.795770202020202 [2022-11-18 20:41:26,474 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2521 transitions. [2022-11-18 20:41:26,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2521 transitions. [2022-11-18 20:41:26,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:26,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2521 transitions. [2022-11-18 20:41:26,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 420.1666666666667) internal successors, (2521), 6 states have internal predecessors, (2521), 0 states have call successors, (0), 0 states 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 20:41:26,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 20:41:26,495 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 20:41:26,495 INFO L175 Difference]: Start difference. First operand has 415 places, 415 transitions, 846 flow. Second operand 6 states and 2521 transitions. [2022-11-18 20:41:26,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 463 transitions, 1232 flow [2022-11-18 20:41:26,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 463 transitions, 1231 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:41:26,508 INFO L231 Difference]: Finished difference. Result has 417 places, 413 transitions, 851 flow [2022-11-18 20:41:26,509 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=841, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=851, PETRI_PLACES=417, PETRI_TRANSITIONS=413} [2022-11-18 20:41:26,510 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -47 predicate places. [2022-11-18 20:41:26,510 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 413 transitions, 851 flow [2022-11-18 20:41:26,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 398.1666666666667) internal successors, (2389), 6 states have internal predecessors, (2389), 0 states have call successors, (0), 0 states 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 20:41:26,512 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:26,512 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:41:26,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:41:26,513 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:26,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:26,514 INFO L85 PathProgramCache]: Analyzing trace with hash -460420730, now seen corresponding path program 1 times [2022-11-18 20:41:26,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:26,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390036595] [2022-11-18 20:41:26,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:26,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:26,607 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 20:41:26,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:26,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390036595] [2022-11-18 20:41:26,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390036595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:26,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:26,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:41:26,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088009077] [2022-11-18 20:41:26,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:26,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:41:26,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:26,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:41:26,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:41:26,613 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 528 [2022-11-18 20:41:26,616 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 413 transitions, 851 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states 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 20:41:26,616 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:26,616 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 528 [2022-11-18 20:41:26,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:27,132 INFO L130 PetriNetUnfolder]: 161/1312 cut-off events. [2022-11-18 20:41:27,132 INFO L131 PetriNetUnfolder]: For 146/151 co-relation queries the response was YES. [2022-11-18 20:41:27,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1656 conditions, 1312 events. 161/1312 cut-off events. For 146/151 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7111 event pairs, 80 based on Foata normal form. 0/1148 useless extension candidates. Maximal degree in co-relation 1619. Up to 216 conditions per place. [2022-11-18 20:41:27,146 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 21 selfloop transitions, 2 changer transitions 0/412 dead transitions. [2022-11-18 20:41:27,147 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 412 transitions, 895 flow [2022-11-18 20:41:27,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:41:27,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:41:27,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1436 transitions. [2022-11-18 20:41:27,152 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065656565656566 [2022-11-18 20:41:27,152 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1436 transitions. [2022-11-18 20:41:27,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1436 transitions. [2022-11-18 20:41:27,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:27,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1436 transitions. [2022-11-18 20:41:27,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 478.6666666666667) internal successors, (1436), 3 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 20:41:27,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:27,165 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:27,165 INFO L175 Difference]: Start difference. First operand has 417 places, 413 transitions, 851 flow. Second operand 3 states and 1436 transitions. [2022-11-18 20:41:27,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 412 transitions, 895 flow [2022-11-18 20:41:27,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 412 transitions, 885 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:41:27,179 INFO L231 Difference]: Finished difference. Result has 413 places, 412 transitions, 843 flow [2022-11-18 20:41:27,180 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=839, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=843, PETRI_PLACES=413, PETRI_TRANSITIONS=412} [2022-11-18 20:41:27,181 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -51 predicate places. [2022-11-18 20:41:27,181 INFO L495 AbstractCegarLoop]: Abstraction has has 413 places, 412 transitions, 843 flow [2022-11-18 20:41:27,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states 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 20:41:27,183 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:27,183 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:41:27,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:41:27,184 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:27,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:27,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1834400030, now seen corresponding path program 1 times [2022-11-18 20:41:27,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:27,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395805489] [2022-11-18 20:41:27,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:27,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:27,309 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 20:41:27,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:27,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395805489] [2022-11-18 20:41:27,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395805489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:27,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:27,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:41:27,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443883666] [2022-11-18 20:41:27,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:27,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:41:27,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:27,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:41:27,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:41:27,315 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 528 [2022-11-18 20:41:27,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 412 transitions, 843 flow. Second operand has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states 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 20:41:27,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:27,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 528 [2022-11-18 20:41:27,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:27,562 INFO L130 PetriNetUnfolder]: 39/554 cut-off events. [2022-11-18 20:41:27,562 INFO L131 PetriNetUnfolder]: For 30/35 co-relation queries the response was YES. [2022-11-18 20:41:27,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 554 events. 39/554 cut-off events. For 30/35 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1283 event pairs, 14 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 606. Up to 60 conditions per place. [2022-11-18 20:41:27,568 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 16 selfloop transitions, 2 changer transitions 0/411 dead transitions. [2022-11-18 20:41:27,568 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 411 transitions, 877 flow [2022-11-18 20:41:27,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:41:27,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:41:27,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1449 transitions. [2022-11-18 20:41:27,573 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9147727272727273 [2022-11-18 20:41:27,574 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1449 transitions. [2022-11-18 20:41:27,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1449 transitions. [2022-11-18 20:41:27,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:27,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1449 transitions. [2022-11-18 20:41:27,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states 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 20:41:27,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:27,586 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:27,587 INFO L175 Difference]: Start difference. First operand has 413 places, 412 transitions, 843 flow. Second operand 3 states and 1449 transitions. [2022-11-18 20:41:27,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 411 transitions, 877 flow [2022-11-18 20:41:27,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 411 transitions, 873 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:41:27,598 INFO L231 Difference]: Finished difference. Result has 412 places, 411 transitions, 841 flow [2022-11-18 20:41:27,599 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=837, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=841, PETRI_PLACES=412, PETRI_TRANSITIONS=411} [2022-11-18 20:41:27,600 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -52 predicate places. [2022-11-18 20:41:27,600 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 411 transitions, 841 flow [2022-11-18 20:41:27,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states 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 20:41:27,601 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:27,602 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:41:27,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:41:27,602 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:27,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:27,603 INFO L85 PathProgramCache]: Analyzing trace with hash 665529338, now seen corresponding path program 1 times [2022-11-18 20:41:27,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:27,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252781003] [2022-11-18 20:41:27,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:27,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:27,732 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 20:41:27,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:27,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252781003] [2022-11-18 20:41:27,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252781003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:27,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:27,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:41:27,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142942002] [2022-11-18 20:41:27,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:27,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:41:27,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:27,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:41:27,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:41:27,737 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 528 [2022-11-18 20:41:27,739 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 411 transitions, 841 flow. Second operand has 3 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states 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 20:41:27,739 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:27,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 528 [2022-11-18 20:41:27,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:28,129 INFO L130 PetriNetUnfolder]: 179/1384 cut-off events. [2022-11-18 20:41:28,130 INFO L131 PetriNetUnfolder]: For 98/111 co-relation queries the response was YES. [2022-11-18 20:41:28,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1708 conditions, 1384 events. 179/1384 cut-off events. For 98/111 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 7593 event pairs, 62 based on Foata normal form. 0/1208 useless extension candidates. Maximal degree in co-relation 1672. Up to 131 conditions per place. [2022-11-18 20:41:28,138 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 27 selfloop transitions, 3 changer transitions 0/420 dead transitions. [2022-11-18 20:41:28,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 420 transitions, 928 flow [2022-11-18 20:41:28,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:41:28,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:41:28,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1452 transitions. [2022-11-18 20:41:28,143 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2022-11-18 20:41:28,144 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1452 transitions. [2022-11-18 20:41:28,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1452 transitions. [2022-11-18 20:41:28,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:28,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1452 transitions. [2022-11-18 20:41:28,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 484.0) internal successors, (1452), 3 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states 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 20:41:28,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:28,154 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:41:28,154 INFO L175 Difference]: Start difference. First operand has 412 places, 411 transitions, 841 flow. Second operand 3 states and 1452 transitions. [2022-11-18 20:41:28,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 420 transitions, 928 flow [2022-11-18 20:41:28,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 420 transitions, 924 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:41:28,164 INFO L231 Difference]: Finished difference. Result has 411 places, 411 transitions, 850 flow [2022-11-18 20:41:28,165 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=850, PETRI_PLACES=411, PETRI_TRANSITIONS=411} [2022-11-18 20:41:28,165 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -53 predicate places. [2022-11-18 20:41:28,166 INFO L495 AbstractCegarLoop]: Abstraction has has 411 places, 411 transitions, 850 flow [2022-11-18 20:41:28,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states 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 20:41:28,167 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:28,167 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:41:28,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:41:28,167 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:28,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:28,168 INFO L85 PathProgramCache]: Analyzing trace with hash 36186144, now seen corresponding path program 1 times [2022-11-18 20:41:28,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:28,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470537393] [2022-11-18 20:41:28,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:28,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:28,486 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 20:41:28,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:28,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470537393] [2022-11-18 20:41:28,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470537393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:28,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:28,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:41:28,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380791896] [2022-11-18 20:41:28,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:28,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:41:28,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:28,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:41:28,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:41:28,493 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 392 out of 528 [2022-11-18 20:41:28,496 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 411 transitions, 850 flow. Second operand has 7 states, 7 states have (on average 397.14285714285717) internal successors, (2780), 7 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states 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 20:41:28,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:28,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 392 of 528 [2022-11-18 20:41:28,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:33,515 INFO L130 PetriNetUnfolder]: 5052/12147 cut-off events. [2022-11-18 20:41:33,515 INFO L131 PetriNetUnfolder]: For 858/952 co-relation queries the response was YES. [2022-11-18 20:41:33,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20664 conditions, 12147 events. 5052/12147 cut-off events. For 858/952 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 101312 event pairs, 3443 based on Foata normal form. 1/9696 useless extension candidates. Maximal degree in co-relation 20626. Up to 6311 conditions per place. [2022-11-18 20:41:33,633 INFO L137 encePairwiseOnDemand]: 509/528 looper letters, 211 selfloop transitions, 28 changer transitions 0/549 dead transitions. [2022-11-18 20:41:33,633 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 549 transitions, 1636 flow [2022-11-18 20:41:33,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:41:33,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 20:41:33,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4548 transitions. [2022-11-18 20:41:33,649 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7830578512396694 [2022-11-18 20:41:33,649 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4548 transitions. [2022-11-18 20:41:33,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4548 transitions. [2022-11-18 20:41:33,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:33,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4548 transitions. [2022-11-18 20:41:33,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 413.45454545454544) internal successors, (4548), 11 states have internal predecessors, (4548), 0 states have call successors, (0), 0 states 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 20:41:33,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 528.0) internal successors, (6336), 12 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states 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 20:41:33,685 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 528.0) internal successors, (6336), 12 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states 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 20:41:33,686 INFO L175 Difference]: Start difference. First operand has 411 places, 411 transitions, 850 flow. Second operand 11 states and 4548 transitions. [2022-11-18 20:41:33,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 549 transitions, 1636 flow [2022-11-18 20:41:33,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 549 transitions, 1633 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:41:33,707 INFO L231 Difference]: Finished difference. Result has 424 places, 428 transitions, 980 flow [2022-11-18 20:41:33,707 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=980, PETRI_PLACES=424, PETRI_TRANSITIONS=428} [2022-11-18 20:41:33,708 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -40 predicate places. [2022-11-18 20:41:33,711 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 428 transitions, 980 flow [2022-11-18 20:41:33,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 397.14285714285717) internal successors, (2780), 7 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states 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 20:41:33,713 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:33,713 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:41:33,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:41:33,714 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:33,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:33,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1534992727, now seen corresponding path program 1 times [2022-11-18 20:41:33,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:33,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849495913] [2022-11-18 20:41:33,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:33,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:34,803 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 20:41:34,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:34,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849495913] [2022-11-18 20:41:34,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849495913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:34,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:34,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:41:34,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056477498] [2022-11-18 20:41:34,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:34,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:41:34,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:34,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:41:34,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:41:34,810 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-18 20:41:34,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 428 transitions, 980 flow. Second operand has 6 states, 6 states have (on average 401.3333333333333) internal successors, (2408), 6 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states 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 20:41:34,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:34,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-18 20:41:34,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:40,900 INFO L130 PetriNetUnfolder]: 6676/14217 cut-off events. [2022-11-18 20:41:40,900 INFO L131 PetriNetUnfolder]: For 2786/2846 co-relation queries the response was YES. [2022-11-18 20:41:40,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26970 conditions, 14217 events. 6676/14217 cut-off events. For 2786/2846 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 114792 event pairs, 2122 based on Foata normal form. 48/13059 useless extension candidates. Maximal degree in co-relation 26925. Up to 5895 conditions per place. [2022-11-18 20:41:41,010 INFO L137 encePairwiseOnDemand]: 521/528 looper letters, 209 selfloop transitions, 13 changer transitions 0/559 dead transitions. [2022-11-18 20:41:41,010 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 559 transitions, 1705 flow [2022-11-18 20:41:41,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:41:41,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:41:41,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2594 transitions. [2022-11-18 20:41:41,017 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8188131313131313 [2022-11-18 20:41:41,017 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2594 transitions. [2022-11-18 20:41:41,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2594 transitions. [2022-11-18 20:41:41,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:41,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2594 transitions. [2022-11-18 20:41:41,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 432.3333333333333) internal successors, (2594), 6 states have internal predecessors, (2594), 0 states have call successors, (0), 0 states 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 20:41:41,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 20:41:41,039 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 20:41:41,039 INFO L175 Difference]: Start difference. First operand has 424 places, 428 transitions, 980 flow. Second operand 6 states and 2594 transitions. [2022-11-18 20:41:41,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 559 transitions, 1705 flow [2022-11-18 20:41:41,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 559 transitions, 1700 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:41:41,058 INFO L231 Difference]: Finished difference. Result has 432 places, 440 transitions, 1081 flow [2022-11-18 20:41:41,059 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=975, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1081, PETRI_PLACES=432, PETRI_TRANSITIONS=440} [2022-11-18 20:41:41,060 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -32 predicate places. [2022-11-18 20:41:41,060 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 440 transitions, 1081 flow [2022-11-18 20:41:41,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 401.3333333333333) internal successors, (2408), 6 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states 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 20:41:41,061 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:41,061 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:41:41,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 20:41:41,062 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:41,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:41,063 INFO L85 PathProgramCache]: Analyzing trace with hash -338838976, now seen corresponding path program 1 times [2022-11-18 20:41:41,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:41,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884737396] [2022-11-18 20:41:41,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:41,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:41,399 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 20:41:41,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:41,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884737396] [2022-11-18 20:41:41,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884737396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:41,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:41,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:41:41,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692075505] [2022-11-18 20:41:41,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:41,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:41:41,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:41,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:41:41,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:41:41,405 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 528 [2022-11-18 20:41:41,409 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 440 transitions, 1081 flow. Second operand has 7 states, 7 states have (on average 424.7142857142857) internal successors, (2973), 7 states have internal predecessors, (2973), 0 states have call successors, (0), 0 states 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 20:41:41,409 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:41,409 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 528 [2022-11-18 20:41:41,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:44,356 INFO L130 PetriNetUnfolder]: 3124/7596 cut-off events. [2022-11-18 20:41:44,357 INFO L131 PetriNetUnfolder]: For 4452/5151 co-relation queries the response was YES. [2022-11-18 20:41:44,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14659 conditions, 7596 events. 3124/7596 cut-off events. For 4452/5151 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 57147 event pairs, 1719 based on Foata normal form. 39/5923 useless extension candidates. Maximal degree in co-relation 14612. Up to 3889 conditions per place. [2022-11-18 20:41:44,440 INFO L137 encePairwiseOnDemand]: 509/528 looper letters, 179 selfloop transitions, 28 changer transitions 0/551 dead transitions. [2022-11-18 20:41:44,440 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 551 transitions, 1749 flow [2022-11-18 20:41:44,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:41:44,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 20:41:44,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4820 transitions. [2022-11-18 20:41:44,451 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8298898071625345 [2022-11-18 20:41:44,451 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4820 transitions. [2022-11-18 20:41:44,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4820 transitions. [2022-11-18 20:41:44,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:44,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4820 transitions. [2022-11-18 20:41:44,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 438.1818181818182) internal successors, (4820), 11 states have internal predecessors, (4820), 0 states have call successors, (0), 0 states 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 20:41:44,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 528.0) internal successors, (6336), 12 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states 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 20:41:44,478 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 528.0) internal successors, (6336), 12 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states 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 20:41:44,479 INFO L175 Difference]: Start difference. First operand has 432 places, 440 transitions, 1081 flow. Second operand 11 states and 4820 transitions. [2022-11-18 20:41:44,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 551 transitions, 1749 flow [2022-11-18 20:41:44,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 551 transitions, 1749 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:41:44,493 INFO L231 Difference]: Finished difference. Result has 444 places, 442 transitions, 1149 flow [2022-11-18 20:41:44,494 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1081, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1149, PETRI_PLACES=444, PETRI_TRANSITIONS=442} [2022-11-18 20:41:44,495 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -20 predicate places. [2022-11-18 20:41:44,495 INFO L495 AbstractCegarLoop]: Abstraction has has 444 places, 442 transitions, 1149 flow [2022-11-18 20:41:44,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 424.7142857142857) internal successors, (2973), 7 states have internal predecessors, (2973), 0 states have call successors, (0), 0 states 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 20:41:44,497 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:44,497 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:41:44,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 20:41:44,497 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:44,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:44,498 INFO L85 PathProgramCache]: Analyzing trace with hash -964379768, now seen corresponding path program 1 times [2022-11-18 20:41:44,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:44,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003012122] [2022-11-18 20:41:44,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:44,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:45,428 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 20:41:45,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:45,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003012122] [2022-11-18 20:41:45,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003012122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:45,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:45,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:41:45,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741004332] [2022-11-18 20:41:45,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:45,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:41:45,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:45,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:41:45,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:41:45,435 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-18 20:41:45,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 442 transitions, 1149 flow. Second operand has 6 states, 6 states have (on average 402.3333333333333) internal successors, (2414), 6 states have internal predecessors, (2414), 0 states have call successors, (0), 0 states 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 20:41:45,438 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:45,439 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-18 20:41:45,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:51,090 INFO L130 PetriNetUnfolder]: 5873/15054 cut-off events. [2022-11-18 20:41:51,090 INFO L131 PetriNetUnfolder]: For 13951/14038 co-relation queries the response was YES. [2022-11-18 20:41:51,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32839 conditions, 15054 events. 5873/15054 cut-off events. For 13951/14038 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 140585 event pairs, 3463 based on Foata normal form. 12/13948 useless extension candidates. Maximal degree in co-relation 32787. Up to 7909 conditions per place. [2022-11-18 20:41:51,257 INFO L137 encePairwiseOnDemand]: 521/528 looper letters, 118 selfloop transitions, 17 changer transitions 0/474 dead transitions. [2022-11-18 20:41:51,257 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 474 transitions, 1549 flow [2022-11-18 20:41:51,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:41:51,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:41:51,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2491 transitions. [2022-11-18 20:41:51,265 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7863005050505051 [2022-11-18 20:41:51,265 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2491 transitions. [2022-11-18 20:41:51,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2491 transitions. [2022-11-18 20:41:51,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:51,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2491 transitions. [2022-11-18 20:41:51,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 415.1666666666667) internal successors, (2491), 6 states have internal predecessors, (2491), 0 states have call successors, (0), 0 states 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 20:41:51,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 20:41:51,283 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 20:41:51,283 INFO L175 Difference]: Start difference. First operand has 444 places, 442 transitions, 1149 flow. Second operand 6 states and 2491 transitions. [2022-11-18 20:41:51,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 474 transitions, 1549 flow [2022-11-18 20:41:51,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 474 transitions, 1524 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:41:51,328 INFO L231 Difference]: Finished difference. Result has 449 places, 458 transitions, 1304 flow [2022-11-18 20:41:51,329 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1124, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1304, PETRI_PLACES=449, PETRI_TRANSITIONS=458} [2022-11-18 20:41:51,329 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -15 predicate places. [2022-11-18 20:41:51,330 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 458 transitions, 1304 flow [2022-11-18 20:41:51,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 402.3333333333333) internal successors, (2414), 6 states have internal predecessors, (2414), 0 states have call successors, (0), 0 states 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 20:41:51,331 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:51,331 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:41:51,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 20:41:51,332 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:51,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:51,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1341699162, now seen corresponding path program 1 times [2022-11-18 20:41:51,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:51,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545508371] [2022-11-18 20:41:51,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:51,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:52,534 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 20:41:52,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:52,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545508371] [2022-11-18 20:41:52,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545508371] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:52,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:52,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:41:52,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874677052] [2022-11-18 20:41:52,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:52,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:41:52,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:52,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:41:52,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:41:52,540 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-18 20:41:52,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 458 transitions, 1304 flow. Second operand has 6 states, 6 states have (on average 403.3333333333333) internal successors, (2420), 6 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states 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 20:41:52,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:52,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-18 20:41:52,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:58,701 INFO L130 PetriNetUnfolder]: 5953/15203 cut-off events. [2022-11-18 20:41:58,701 INFO L131 PetriNetUnfolder]: For 19036/19159 co-relation queries the response was YES. [2022-11-18 20:41:58,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34957 conditions, 15203 events. 5953/15203 cut-off events. For 19036/19159 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 141912 event pairs, 3606 based on Foata normal form. 0/14108 useless extension candidates. Maximal degree in co-relation 34903. Up to 8233 conditions per place. [2022-11-18 20:41:58,919 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 122 selfloop transitions, 4 changer transitions 0/465 dead transitions. [2022-11-18 20:41:58,919 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 465 transitions, 1570 flow [2022-11-18 20:41:58,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:41:58,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:41:58,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2474 transitions. [2022-11-18 20:41:58,926 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7809343434343434 [2022-11-18 20:41:58,927 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2474 transitions. [2022-11-18 20:41:58,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2474 transitions. [2022-11-18 20:41:58,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:58,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2474 transitions. [2022-11-18 20:41:58,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 412.3333333333333) internal successors, (2474), 6 states have internal predecessors, (2474), 0 states have call successors, (0), 0 states 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 20:41:58,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 20:41:58,940 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 20:41:58,940 INFO L175 Difference]: Start difference. First operand has 449 places, 458 transitions, 1304 flow. Second operand 6 states and 2474 transitions. [2022-11-18 20:41:58,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 465 transitions, 1570 flow [2022-11-18 20:41:58,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 465 transitions, 1570 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:41:59,004 INFO L231 Difference]: Finished difference. Result has 453 places, 457 transitions, 1310 flow [2022-11-18 20:41:59,005 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1302, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1310, PETRI_PLACES=453, PETRI_TRANSITIONS=457} [2022-11-18 20:41:59,006 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -11 predicate places. [2022-11-18 20:41:59,006 INFO L495 AbstractCegarLoop]: Abstraction has has 453 places, 457 transitions, 1310 flow [2022-11-18 20:41:59,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 403.3333333333333) internal successors, (2420), 6 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states 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 20:41:59,007 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:59,007 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:41:59,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 20:41:59,008 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:41:59,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:59,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1079535895, now seen corresponding path program 1 times [2022-11-18 20:41:59,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:59,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137677991] [2022-11-18 20:41:59,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:59,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:59,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:41:59,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:59,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137677991] [2022-11-18 20:41:59,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137677991] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:41:59,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927651780] [2022-11-18 20:41:59,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:59,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:41:59,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5adb2df-989b-4d5c-a6dc-99896acc359c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:41:59,771 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5adb2df-989b-4d5c-a6dc-99896acc359c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:41:59,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5adb2df-989b-4d5c-a6dc-99896acc359c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:42:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:00,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:42:00,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:42:00,785 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:42:00,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:42:01,484 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:42:01,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927651780] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:42:01,485 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:42:01,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-11-18 20:42:01,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577811209] [2022-11-18 20:42:01,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:42:01,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 20:42:01,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:01,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 20:42:01,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:42:01,496 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 528 [2022-11-18 20:42:01,503 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 457 transitions, 1310 flow. Second operand has 19 states, 19 states have (on average 394.2631578947368) internal successors, (7491), 19 states have internal predecessors, (7491), 0 states have call successors, (0), 0 states 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 20:42:01,503 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:01,503 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 528 [2022-11-18 20:42:01,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:18,049 INFO L130 PetriNetUnfolder]: 19022/40535 cut-off events. [2022-11-18 20:42:18,050 INFO L131 PetriNetUnfolder]: For 52782/55516 co-relation queries the response was YES. [2022-11-18 20:42:18,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94205 conditions, 40535 events. 19022/40535 cut-off events. For 52782/55516 co-relation queries the response was YES. Maximal size of possible extension queue 1040. Compared 385248 event pairs, 10380 based on Foata normal form. 315/35504 useless extension candidates. Maximal degree in co-relation 94150. Up to 20549 conditions per place. [2022-11-18 20:42:18,932 INFO L137 encePairwiseOnDemand]: 499/528 looper letters, 359 selfloop transitions, 70 changer transitions 0/745 dead transitions. [2022-11-18 20:42:18,932 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 745 transitions, 3419 flow [2022-11-18 20:42:18,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:42:18,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 20:42:18,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8498 transitions. [2022-11-18 20:42:18,954 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7664141414141414 [2022-11-18 20:42:18,954 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 8498 transitions. [2022-11-18 20:42:18,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 8498 transitions. [2022-11-18 20:42:18,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:18,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 8498 transitions. [2022-11-18 20:42:18,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 404.6666666666667) internal successors, (8498), 21 states have internal predecessors, (8498), 0 states have call successors, (0), 0 states 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 20:42:19,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 528.0) internal successors, (11616), 22 states have internal predecessors, (11616), 0 states have call successors, (0), 0 states 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 20:42:19,007 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 528.0) internal successors, (11616), 22 states have internal predecessors, (11616), 0 states have call successors, (0), 0 states 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 20:42:19,008 INFO L175 Difference]: Start difference. First operand has 453 places, 457 transitions, 1310 flow. Second operand 21 states and 8498 transitions. [2022-11-18 20:42:19,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 745 transitions, 3419 flow [2022-11-18 20:42:19,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 745 transitions, 3412 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:42:19,268 INFO L231 Difference]: Finished difference. Result has 478 places, 498 transitions, 1738 flow [2022-11-18 20:42:19,269 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1303, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1738, PETRI_PLACES=478, PETRI_TRANSITIONS=498} [2022-11-18 20:42:19,269 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, 14 predicate places. [2022-11-18 20:42:19,270 INFO L495 AbstractCegarLoop]: Abstraction has has 478 places, 498 transitions, 1738 flow [2022-11-18 20:42:19,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 394.2631578947368) internal successors, (7491), 19 states have internal predecessors, (7491), 0 states have call successors, (0), 0 states 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 20:42:19,271 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:19,272 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:42:19,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5adb2df-989b-4d5c-a6dc-99896acc359c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:42:19,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5adb2df-989b-4d5c-a6dc-99896acc359c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:42:19,474 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:42:19,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:19,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1092733298, now seen corresponding path program 1 times [2022-11-18 20:42:19,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:19,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075559565] [2022-11-18 20:42:19,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:19,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:19,706 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 20:42:19,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:19,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075559565] [2022-11-18 20:42:19,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075559565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:19,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:19,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:42:19,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766738034] [2022-11-18 20:42:19,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:19,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:42:19,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:19,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:42:19,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:42:19,715 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 528 [2022-11-18 20:42:19,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 498 transitions, 1738 flow. Second operand has 3 states, 3 states have (on average 483.3333333333333) internal successors, (1450), 3 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states 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 20:42:19,718 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:19,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 528 [2022-11-18 20:42:19,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:21,691 INFO L130 PetriNetUnfolder]: 658/4102 cut-off events. [2022-11-18 20:42:21,691 INFO L131 PetriNetUnfolder]: For 4563/4672 co-relation queries the response was YES. [2022-11-18 20:42:21,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7685 conditions, 4102 events. 658/4102 cut-off events. For 4563/4672 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 26632 event pairs, 159 based on Foata normal form. 0/3874 useless extension candidates. Maximal degree in co-relation 7621. Up to 819 conditions per place. [2022-11-18 20:42:21,725 INFO L137 encePairwiseOnDemand]: 526/528 looper letters, 33 selfloop transitions, 1 changer transitions 0/497 dead transitions. [2022-11-18 20:42:21,725 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 497 transitions, 1804 flow [2022-11-18 20:42:21,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:42:21,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:42:21,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1454 transitions. [2022-11-18 20:42:21,728 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9179292929292929 [2022-11-18 20:42:21,728 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1454 transitions. [2022-11-18 20:42:21,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1454 transitions. [2022-11-18 20:42:21,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:21,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1454 transitions. [2022-11-18 20:42:21,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 484.6666666666667) internal successors, (1454), 3 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states 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 20:42:21,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:42:21,734 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 20:42:21,734 INFO L175 Difference]: Start difference. First operand has 478 places, 498 transitions, 1738 flow. Second operand 3 states and 1454 transitions. [2022-11-18 20:42:21,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 497 transitions, 1804 flow [2022-11-18 20:42:21,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 497 transitions, 1747 flow, removed 20 selfloop flow, removed 3 redundant places. [2022-11-18 20:42:21,759 INFO L231 Difference]: Finished difference. Result has 476 places, 497 transitions, 1681 flow [2022-11-18 20:42:21,760 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1679, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1681, PETRI_PLACES=476, PETRI_TRANSITIONS=497} [2022-11-18 20:42:21,760 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, 12 predicate places. [2022-11-18 20:42:21,761 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 497 transitions, 1681 flow [2022-11-18 20:42:21,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 483.3333333333333) internal successors, (1450), 3 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states 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 20:42:21,761 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:21,762 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:42:21,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 20:42:21,762 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 20:42:21,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:21,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1555828474, now seen corresponding path program 1 times [2022-11-18 20:42:21,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:21,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345347804] [2022-11-18 20:42:21,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:21,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:21,889 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 20:42:21,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:21,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345347804] [2022-11-18 20:42:21,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345347804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:21,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:21,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:42:21,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782176246] [2022-11-18 20:42:21,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:21,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:42:21,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:21,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:42:21,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:42:21,894 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 528 [2022-11-18 20:42:21,896 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 497 transitions, 1681 flow. Second operand has 3 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states 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 20:42:21,896 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:21,896 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 528 [2022-11-18 20:42:21,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand