./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_f1078598-c3c7-4f9f-a1bc-81c238bfeb73/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1078598-c3c7-4f9f-a1bc-81c238bfeb73/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1078598-c3c7-4f9f-a1bc-81c238bfeb73/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1078598-c3c7-4f9f-a1bc-81c238bfeb73/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1078598-c3c7-4f9f-a1bc-81c238bfeb73/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1078598-c3c7-4f9f-a1bc-81c238bfeb73/bin/uautomizer-vX5HgA9Q3a --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 97832baecac12bd55b66fbc3c6c38a25db85e9dc70cfa8f34b5e7a9e59086f06 --- 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-b5237d8 [2022-11-21 09:06:41,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:06:41,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:06:42,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:06:42,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:06:42,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:06:42,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:06:42,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:06:42,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:06:42,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:06:42,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:06:42,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:06:42,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:06:42,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:06:42,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:06:42,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:06:42,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:06:42,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:06:42,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:06:42,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:06:42,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:06:42,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:06:42,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:06:42,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:06:42,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:06:42,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:06:42,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:06:42,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:06:42,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:06:42,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:06:42,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:06:42,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:06:42,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:06:42,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:06:42,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:06:42,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:06:42,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:06:42,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:06:42,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:06:42,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:06:42,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:06:42,098 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1078598-c3c7-4f9f-a1bc-81c238bfeb73/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 09:06:42,140 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:06:42,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:06:42,141 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:06:42,141 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:06:42,142 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:06:42,143 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:06:42,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:06:42,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:06:42,144 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:06:42,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:06:42,145 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 09:06:42,146 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 09:06:42,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:06:42,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 09:06:42,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:06:42,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:06:42,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:06:42,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:06:42,147 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 09:06:42,147 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 09:06:42,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:06:42,148 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:06:42,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:06:42,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:06:42,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:06:42,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:06:42,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:06:42,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:06:42,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:06:42,150 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:06:42,151 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:06:42,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:06:42,151 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:06:42,152 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:06:42,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:06:42,152 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_f1078598-c3c7-4f9f-a1bc-81c238bfeb73/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1078598-c3c7-4f9f-a1bc-81c238bfeb73/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97832baecac12bd55b66fbc3c6c38a25db85e9dc70cfa8f34b5e7a9e59086f06 [2022-11-21 09:06:42,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:06:42,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:06:42,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:06:42,538 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:06:42,539 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:06:42,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1078598-c3c7-4f9f-a1bc-81c238bfeb73/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2022-11-21 09:06:45,657 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:06:45,884 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:06:45,885 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1078598-c3c7-4f9f-a1bc-81c238bfeb73/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2022-11-21 09:06:45,894 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1078598-c3c7-4f9f-a1bc-81c238bfeb73/bin/uautomizer-vX5HgA9Q3a/data/eb05f8fc8/087ddbe82e00442989b573289e111456/FLAG44dea101b [2022-11-21 09:06:45,908 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1078598-c3c7-4f9f-a1bc-81c238bfeb73/bin/uautomizer-vX5HgA9Q3a/data/eb05f8fc8/087ddbe82e00442989b573289e111456 [2022-11-21 09:06:45,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:06:45,913 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:06:45,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:06:45,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:06:45,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:06:45,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:06:45" (1/1) ... [2022-11-21 09:06:45,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d2bf6d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:45, skipping insertion in model container [2022-11-21 09:06:45,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:06:45" (1/1) ... [2022-11-21 09:06:45,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:06:45,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:06:46,180 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1078598-c3c7-4f9f-a1bc-81c238bfeb73/sv-benchmarks/c/weaver/chl-node-subst.wvr.c[3996,4009] [2022-11-21 09:06:46,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:06:46,204 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:06:46,251 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1078598-c3c7-4f9f-a1bc-81c238bfeb73/sv-benchmarks/c/weaver/chl-node-subst.wvr.c[3996,4009] [2022-11-21 09:06:46,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:06:46,274 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:06:46,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:46 WrapperNode [2022-11-21 09:06:46,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:06:46,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:06:46,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:06:46,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:06:46,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:46" (1/1) ... [2022-11-21 09:06:46,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:46" (1/1) ... [2022-11-21 09:06:46,390 INFO L138 Inliner]: procedures = 27, calls = 66, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 799 [2022-11-21 09:06:46,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:06:46,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:06:46,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:06:46,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:06:46,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:46" (1/1) ... [2022-11-21 09:06:46,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:46" (1/1) ... [2022-11-21 09:06:46,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:46" (1/1) ... [2022-11-21 09:06:46,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:46" (1/1) ... [2022-11-21 09:06:46,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:46" (1/1) ... [2022-11-21 09:06:46,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:46" (1/1) ... [2022-11-21 09:06:46,482 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:46" (1/1) ... [2022-11-21 09:06:46,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:46" (1/1) ... [2022-11-21 09:06:46,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:06:46,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:06:46,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:06:46,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:06:46,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:46" (1/1) ... [2022-11-21 09:06:46,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:06:46,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1078598-c3c7-4f9f-a1bc-81c238bfeb73/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:06:46,540 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1078598-c3c7-4f9f-a1bc-81c238bfeb73/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:06:46,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1078598-c3c7-4f9f-a1bc-81c238bfeb73/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:06:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:06:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 09:06:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 09:06:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 09:06:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-21 09:06:46,597 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-21 09:06:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-21 09:06:46,597 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-21 09:06:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-21 09:06:46,598 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-21 09:06:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 09:06:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 09:06:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:06:46,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:06:46,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 09:06:46,601 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 09:06:46,822 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:06:46,826 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:06:48,213 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:06:48,244 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:06:48,244 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-21 09:06:48,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:06:48 BoogieIcfgContainer [2022-11-21 09:06:48,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:06:48,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:06:48,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:06:48,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:06:48,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:06:45" (1/3) ... [2022-11-21 09:06:48,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3676cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:06:48, skipping insertion in model container [2022-11-21 09:06:48,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:46" (2/3) ... [2022-11-21 09:06:48,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3676cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:06:48, skipping insertion in model container [2022-11-21 09:06:48,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:06:48" (3/3) ... [2022-11-21 09:06:48,261 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2022-11-21 09:06:48,271 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 09:06:48,283 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:06:48,283 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 119 error locations. [2022-11-21 09:06:48,283 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 09:06:48,559 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-21 09:06:48,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1017 places, 1055 transitions, 2134 flow [2022-11-21 09:06:49,312 INFO L130 PetriNetUnfolder]: 48/1052 cut-off events. [2022-11-21 09:06:49,313 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-21 09:06:49,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1065 conditions, 1052 events. 48/1052 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2224 event pairs, 0 based on Foata normal form. 0/885 useless extension candidates. Maximal degree in co-relation 830. Up to 2 conditions per place. [2022-11-21 09:06:49,335 INFO L82 GeneralOperation]: Start removeDead. Operand has 1017 places, 1055 transitions, 2134 flow [2022-11-21 09:06:49,359 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 991 places, 1026 transitions, 2070 flow [2022-11-21 09:06:49,369 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:06:49,375 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;@8c5adf6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:06:49,376 INFO L358 AbstractCegarLoop]: Starting to check reachability of 197 error locations. [2022-11-21 09:06:49,382 INFO L130 PetriNetUnfolder]: 0/37 cut-off events. [2022-11-21 09:06:49,383 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 09:06:49,383 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:06:49,384 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] [2022-11-21 09:06:49,385 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-21 09:06:49,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:49,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1505703215, now seen corresponding path program 1 times [2022-11-21 09:06:49,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:49,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864773764] [2022-11-21 09:06:49,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:49,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:49,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:49,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:49,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864773764] [2022-11-21 09:06:49,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864773764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:49,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:49,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:49,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009019312] [2022-11-21 09:06:49,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:49,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:49,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:49,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:49,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:49,780 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 983 out of 1055 [2022-11-21 09:06:49,791 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 991 places, 1026 transitions, 2070 flow. Second operand has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:49,791 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:06:49,791 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 983 of 1055 [2022-11-21 09:06:49,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:06:52,617 INFO L130 PetriNetUnfolder]: 379/5191 cut-off events. [2022-11-21 09:06:52,617 INFO L131 PetriNetUnfolder]: For 162/162 co-relation queries the response was YES. [2022-11-21 09:06:52,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5958 conditions, 5191 events. 379/5191 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 43548 event pairs, 279 based on Foata normal form. 171/4395 useless extension candidates. Maximal degree in co-relation 5211. Up to 522 conditions per place. [2022-11-21 09:06:52,792 INFO L137 encePairwiseOnDemand]: 1024/1055 looper letters, 39 selfloop transitions, 2 changer transitions 16/997 dead transitions. [2022-11-21 09:06:52,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 992 places, 997 transitions, 2094 flow [2022-11-21 09:06:52,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:06:52,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:06:52,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3019 transitions. [2022-11-21 09:06:52,816 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.953870458135861 [2022-11-21 09:06:52,817 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3019 transitions. [2022-11-21 09:06:52,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3019 transitions. [2022-11-21 09:06:52,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:06:52,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3019 transitions. [2022-11-21 09:06:52,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1006.3333333333334) internal successors, (3019), 3 states have internal predecessors, (3019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:52,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:52,852 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:52,854 INFO L175 Difference]: Start difference. First operand has 991 places, 1026 transitions, 2070 flow. Second operand 3 states and 3019 transitions. [2022-11-21 09:06:52,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 992 places, 997 transitions, 2094 flow [2022-11-21 09:06:52,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 986 places, 997 transitions, 2082 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-21 09:06:52,882 INFO L231 Difference]: Finished difference. Result has 986 places, 981 transitions, 1972 flow [2022-11-21 09:06:52,886 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=2000, PETRI_DIFFERENCE_MINUEND_PLACES=984, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=997, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=995, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1972, PETRI_PLACES=986, PETRI_TRANSITIONS=981} [2022-11-21 09:06:52,889 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -5 predicate places. [2022-11-21 09:06:52,890 INFO L495 AbstractCegarLoop]: Abstraction has has 986 places, 981 transitions, 1972 flow [2022-11-21 09:06:52,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:52,892 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:06:52,892 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] [2022-11-21 09:06:52,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 09:06:52,893 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-21 09:06:52,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:52,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1285876605, now seen corresponding path program 1 times [2022-11-21 09:06:52,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:52,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592613430] [2022-11-21 09:06:52,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:52,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:52,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:52,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:52,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592613430] [2022-11-21 09:06:52,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592613430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:52,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:52,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:52,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849379515] [2022-11-21 09:06:52,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:52,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:52,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:52,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:52,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:52,960 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 986 out of 1055 [2022-11-21 09:06:52,964 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 986 places, 981 transitions, 1972 flow. Second operand has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:52,965 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:06:52,965 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 986 of 1055 [2022-11-21 09:06:52,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:06:54,714 INFO L130 PetriNetUnfolder]: 212/3982 cut-off events. [2022-11-21 09:06:54,714 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-21 09:06:54,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4303 conditions, 3982 events. 212/3982 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 30041 event pairs, 132 based on Foata normal form. 0/3334 useless extension candidates. Maximal degree in co-relation 4256. Up to 257 conditions per place. [2022-11-21 09:06:54,815 INFO L137 encePairwiseOnDemand]: 1044/1055 looper letters, 27 selfloop transitions, 1 changer transitions 0/971 dead transitions. [2022-11-21 09:06:54,815 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 962 places, 971 transitions, 2008 flow [2022-11-21 09:06:54,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:06:54,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:06:54,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2996 transitions. [2022-11-21 09:06:54,824 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9466034755134282 [2022-11-21 09:06:54,825 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2996 transitions. [2022-11-21 09:06:54,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2996 transitions. [2022-11-21 09:06:54,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:06:54,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2996 transitions. [2022-11-21 09:06:54,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 998.6666666666666) internal successors, (2996), 3 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:54,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:54,849 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:54,850 INFO L175 Difference]: Start difference. First operand has 986 places, 981 transitions, 1972 flow. Second operand 3 states and 2996 transitions. [2022-11-21 09:06:54,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 962 places, 971 transitions, 2008 flow [2022-11-21 09:06:54,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 960 places, 971 transitions, 2004 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:06:54,873 INFO L231 Difference]: Finished difference. Result has 960 places, 971 transitions, 1950 flow [2022-11-21 09:06:54,875 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1948, PETRI_DIFFERENCE_MINUEND_PLACES=958, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=971, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=970, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1950, PETRI_PLACES=960, PETRI_TRANSITIONS=971} [2022-11-21 09:06:54,876 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -31 predicate places. [2022-11-21 09:06:54,876 INFO L495 AbstractCegarLoop]: Abstraction has has 960 places, 971 transitions, 1950 flow [2022-11-21 09:06:54,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:54,878 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:06:54,879 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:06:54,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 09:06:54,879 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-21 09:06:54,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:54,880 INFO L85 PathProgramCache]: Analyzing trace with hash 488479564, now seen corresponding path program 1 times [2022-11-21 09:06:54,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:54,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047047911] [2022-11-21 09:06:54,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:54,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:54,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:54,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:54,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047047911] [2022-11-21 09:06:54,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047047911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:54,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:54,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:54,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051623719] [2022-11-21 09:06:54,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:54,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:54,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:54,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:54,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:54,988 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 983 out of 1055 [2022-11-21 09:06:54,993 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 960 places, 971 transitions, 1950 flow. Second operand has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:54,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:06:54,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 983 of 1055 [2022-11-21 09:06:54,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:06:56,511 INFO L130 PetriNetUnfolder]: 187/3345 cut-off events. [2022-11-21 09:06:56,511 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-21 09:06:56,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3650 conditions, 3345 events. 187/3345 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 22446 event pairs, 117 based on Foata normal form. 0/2754 useless extension candidates. Maximal degree in co-relation 3604. Up to 279 conditions per place. [2022-11-21 09:06:56,623 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 39 selfloop transitions, 2 changer transitions 0/970 dead transitions. [2022-11-21 09:06:56,623 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 961 places, 970 transitions, 2030 flow [2022-11-21 09:06:56,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:06:56,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:06:56,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2991 transitions. [2022-11-21 09:06:56,630 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9450236966824644 [2022-11-21 09:06:56,631 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2991 transitions. [2022-11-21 09:06:56,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2991 transitions. [2022-11-21 09:06:56,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:06:56,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2991 transitions. [2022-11-21 09:06:56,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 997.0) internal successors, (2991), 3 states have internal predecessors, (2991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:56,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:56,650 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:56,650 INFO L175 Difference]: Start difference. First operand has 960 places, 971 transitions, 1950 flow. Second operand 3 states and 2991 transitions. [2022-11-21 09:06:56,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 961 places, 970 transitions, 2030 flow [2022-11-21 09:06:56,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 960 places, 970 transitions, 2029 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 09:06:56,667 INFO L231 Difference]: Finished difference. Result has 960 places, 970 transitions, 1951 flow [2022-11-21 09:06:56,669 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1947, PETRI_DIFFERENCE_MINUEND_PLACES=958, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=970, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=968, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1951, PETRI_PLACES=960, PETRI_TRANSITIONS=970} [2022-11-21 09:06:56,670 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -31 predicate places. [2022-11-21 09:06:56,670 INFO L495 AbstractCegarLoop]: Abstraction has has 960 places, 970 transitions, 1951 flow [2022-11-21 09:06:56,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:56,672 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:06:56,673 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:06:56,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 09:06:56,673 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-21 09:06:56,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:56,674 INFO L85 PathProgramCache]: Analyzing trace with hash -686664239, now seen corresponding path program 1 times [2022-11-21 09:06:56,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:56,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917321323] [2022-11-21 09:06:56,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:56,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:56,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:56,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:56,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917321323] [2022-11-21 09:06:56,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917321323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:56,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:56,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:56,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599265906] [2022-11-21 09:06:56,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:56,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:56,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:56,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:56,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:56,731 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 986 out of 1055 [2022-11-21 09:06:56,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 960 places, 970 transitions, 1951 flow. Second operand has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:56,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:06:56,735 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 986 of 1055 [2022-11-21 09:06:56,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:06:57,851 INFO L130 PetriNetUnfolder]: 119/2776 cut-off events. [2022-11-21 09:06:57,851 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-21 09:06:57,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2948 conditions, 2776 events. 119/2776 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 16735 event pairs, 60 based on Foata normal form. 0/2346 useless extension candidates. Maximal degree in co-relation 2903. Up to 149 conditions per place. [2022-11-21 09:06:57,949 INFO L137 encePairwiseOnDemand]: 1044/1055 looper letters, 27 selfloop transitions, 1 changer transitions 0/960 dead transitions. [2022-11-21 09:06:57,949 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 952 places, 960 transitions, 1987 flow [2022-11-21 09:06:57,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:06:57,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:06:57,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2996 transitions. [2022-11-21 09:06:57,956 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9466034755134282 [2022-11-21 09:06:57,956 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2996 transitions. [2022-11-21 09:06:57,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2996 transitions. [2022-11-21 09:06:57,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:06:57,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2996 transitions. [2022-11-21 09:06:57,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 998.6666666666666) internal successors, (2996), 3 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:57,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:57,996 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:57,996 INFO L175 Difference]: Start difference. First operand has 960 places, 970 transitions, 1951 flow. Second operand 3 states and 2996 transitions. [2022-11-21 09:06:57,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 952 places, 960 transitions, 1987 flow [2022-11-21 09:06:58,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 950 places, 960 transitions, 1983 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:06:58,127 INFO L231 Difference]: Finished difference. Result has 950 places, 960 transitions, 1929 flow [2022-11-21 09:06:58,128 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1927, PETRI_DIFFERENCE_MINUEND_PLACES=948, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=960, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=959, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1929, PETRI_PLACES=950, PETRI_TRANSITIONS=960} [2022-11-21 09:06:58,129 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -41 predicate places. [2022-11-21 09:06:58,130 INFO L495 AbstractCegarLoop]: Abstraction has has 950 places, 960 transitions, 1929 flow [2022-11-21 09:06:58,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:58,132 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:06:58,133 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] [2022-11-21 09:06:58,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 09:06:58,134 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-21 09:06:58,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:58,134 INFO L85 PathProgramCache]: Analyzing trace with hash 869118729, now seen corresponding path program 1 times [2022-11-21 09:06:58,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:58,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667316913] [2022-11-21 09:06:58,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:58,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:58,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:58,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:58,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667316913] [2022-11-21 09:06:58,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667316913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:58,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:58,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:58,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736580639] [2022-11-21 09:06:58,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:58,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:58,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:58,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:58,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:58,247 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 983 out of 1055 [2022-11-21 09:06:58,251 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 950 places, 960 transitions, 1929 flow. Second operand has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:58,252 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:06:58,252 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 983 of 1055 [2022-11-21 09:06:58,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:07:00,415 INFO L130 PetriNetUnfolder]: 399/4762 cut-off events. [2022-11-21 09:07:00,416 INFO L131 PetriNetUnfolder]: For 122/166 co-relation queries the response was YES. [2022-11-21 09:07:00,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5329 conditions, 4762 events. 399/4762 cut-off events. For 122/166 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 40217 event pairs, 279 based on Foata normal form. 0/3935 useless extension candidates. Maximal degree in co-relation 5283. Up to 549 conditions per place. [2022-11-21 09:07:00,508 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 39 selfloop transitions, 2 changer transitions 0/959 dead transitions. [2022-11-21 09:07:00,508 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 951 places, 959 transitions, 2009 flow [2022-11-21 09:07:00,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:07:00,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:07:00,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2991 transitions. [2022-11-21 09:07:00,515 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9450236966824644 [2022-11-21 09:07:00,515 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2991 transitions. [2022-11-21 09:07:00,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2991 transitions. [2022-11-21 09:07:00,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:07:00,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2991 transitions. [2022-11-21 09:07:00,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 997.0) internal successors, (2991), 3 states have internal predecessors, (2991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:00,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:00,531 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:00,531 INFO L175 Difference]: Start difference. First operand has 950 places, 960 transitions, 1929 flow. Second operand 3 states and 2991 transitions. [2022-11-21 09:07:00,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 951 places, 959 transitions, 2009 flow [2022-11-21 09:07:00,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 950 places, 959 transitions, 2008 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 09:07:00,551 INFO L231 Difference]: Finished difference. Result has 950 places, 959 transitions, 1930 flow [2022-11-21 09:07:00,553 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1926, PETRI_DIFFERENCE_MINUEND_PLACES=948, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=959, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=957, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1930, PETRI_PLACES=950, PETRI_TRANSITIONS=959} [2022-11-21 09:07:00,557 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -41 predicate places. [2022-11-21 09:07:00,557 INFO L495 AbstractCegarLoop]: Abstraction has has 950 places, 959 transitions, 1930 flow [2022-11-21 09:07:00,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:00,558 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:07:00,559 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] [2022-11-21 09:07:00,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 09:07:00,559 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-21 09:07:00,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:07:00,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1678627460, now seen corresponding path program 1 times [2022-11-21 09:07:00,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:07:00,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953117092] [2022-11-21 09:07:00,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:00,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:07:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:00,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:07:00,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:07:00,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953117092] [2022-11-21 09:07:00,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953117092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:07:00,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:07:00,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:07:00,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199993823] [2022-11-21 09:07:00,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:07:00,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:07:00,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:07:00,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:07:00,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:07:00,687 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 986 out of 1055 [2022-11-21 09:07:00,690 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 950 places, 959 transitions, 1930 flow. Second operand has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:00,690 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:07:00,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 986 of 1055 [2022-11-21 09:07:00,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:07:01,914 INFO L130 PetriNetUnfolder]: 226/3719 cut-off events. [2022-11-21 09:07:01,914 INFO L131 PetriNetUnfolder]: For 65/94 co-relation queries the response was YES. [2022-11-21 09:07:01,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4011 conditions, 3719 events. 226/3719 cut-off events. For 65/94 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 27176 event pairs, 132 based on Foata normal form. 0/3164 useless extension candidates. Maximal degree in co-relation 3966. Up to 274 conditions per place. [2022-11-21 09:07:02,002 INFO L137 encePairwiseOnDemand]: 1044/1055 looper letters, 27 selfloop transitions, 1 changer transitions 0/949 dead transitions. [2022-11-21 09:07:02,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 942 places, 949 transitions, 1966 flow [2022-11-21 09:07:02,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:07:02,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:07:02,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2996 transitions. [2022-11-21 09:07:02,011 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9466034755134282 [2022-11-21 09:07:02,011 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2996 transitions. [2022-11-21 09:07:02,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2996 transitions. [2022-11-21 09:07:02,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:07:02,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2996 transitions. [2022-11-21 09:07:02,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 998.6666666666666) internal successors, (2996), 3 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:02,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:02,031 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:02,031 INFO L175 Difference]: Start difference. First operand has 950 places, 959 transitions, 1930 flow. Second operand 3 states and 2996 transitions. [2022-11-21 09:07:02,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 942 places, 949 transitions, 1966 flow [2022-11-21 09:07:02,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 940 places, 949 transitions, 1962 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:07:02,053 INFO L231 Difference]: Finished difference. Result has 940 places, 949 transitions, 1908 flow [2022-11-21 09:07:02,055 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1906, PETRI_DIFFERENCE_MINUEND_PLACES=938, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=949, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=948, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1908, PETRI_PLACES=940, PETRI_TRANSITIONS=949} [2022-11-21 09:07:02,056 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -51 predicate places. [2022-11-21 09:07:02,056 INFO L495 AbstractCegarLoop]: Abstraction has has 940 places, 949 transitions, 1908 flow [2022-11-21 09:07:02,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:02,058 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:07:02,058 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] [2022-11-21 09:07:02,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 09:07:02,059 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-21 09:07:02,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:07:02,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1015479503, now seen corresponding path program 1 times [2022-11-21 09:07:02,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:07:02,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194949812] [2022-11-21 09:07:02,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:02,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:07:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:02,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:07:02,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:07:02,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194949812] [2022-11-21 09:07:02,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194949812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:07:02,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:07:02,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:07:02,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967185012] [2022-11-21 09:07:02,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:07:02,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:07:02,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:07:02,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:07:02,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:07:02,122 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1007 out of 1055 [2022-11-21 09:07:02,126 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 940 places, 949 transitions, 1908 flow. Second operand has 3 states, 3 states have (on average 1008.3333333333334) internal successors, (3025), 3 states have internal predecessors, (3025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:02,127 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:07:02,127 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1007 of 1055 [2022-11-21 09:07:02,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:07:02,592 INFO L130 PetriNetUnfolder]: 29/1284 cut-off events. [2022-11-21 09:07:02,592 INFO L131 PetriNetUnfolder]: For 3/9 co-relation queries the response was YES. [2022-11-21 09:07:02,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1328 conditions, 1284 events. 29/1284 cut-off events. For 3/9 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3677 event pairs, 6 based on Foata normal form. 0/1122 useless extension candidates. Maximal degree in co-relation 1282. Up to 28 conditions per place. [2022-11-21 09:07:02,621 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 15 selfloop transitions, 2 changer transitions 0/948 dead transitions. [2022-11-21 09:07:02,622 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 941 places, 948 transitions, 1940 flow [2022-11-21 09:07:02,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:07:02,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:07:02,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3039 transitions. [2022-11-21 09:07:02,630 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9601895734597157 [2022-11-21 09:07:02,631 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3039 transitions. [2022-11-21 09:07:02,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3039 transitions. [2022-11-21 09:07:02,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:07:02,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3039 transitions. [2022-11-21 09:07:02,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1013.0) internal successors, (3039), 3 states have internal predecessors, (3039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:02,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:02,650 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:02,650 INFO L175 Difference]: Start difference. First operand has 940 places, 949 transitions, 1908 flow. Second operand 3 states and 3039 transitions. [2022-11-21 09:07:02,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 941 places, 948 transitions, 1940 flow [2022-11-21 09:07:02,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 940 places, 948 transitions, 1939 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 09:07:02,674 INFO L231 Difference]: Finished difference. Result has 940 places, 948 transitions, 1909 flow [2022-11-21 09:07:02,676 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1905, PETRI_DIFFERENCE_MINUEND_PLACES=938, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=948, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=946, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1909, PETRI_PLACES=940, PETRI_TRANSITIONS=948} [2022-11-21 09:07:02,677 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -51 predicate places. [2022-11-21 09:07:02,677 INFO L495 AbstractCegarLoop]: Abstraction has has 940 places, 948 transitions, 1909 flow [2022-11-21 09:07:02,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1008.3333333333334) internal successors, (3025), 3 states have internal predecessors, (3025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:02,679 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:07:02,679 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] [2022-11-21 09:07:02,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 09:07:02,679 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-21 09:07:02,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:07:02,680 INFO L85 PathProgramCache]: Analyzing trace with hash -213390034, now seen corresponding path program 1 times [2022-11-21 09:07:02,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:07:02,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452079622] [2022-11-21 09:07:02,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:02,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:07:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:02,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:07:02,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:07:02,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452079622] [2022-11-21 09:07:02,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452079622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:07:02,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:07:02,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:07:02,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16370819] [2022-11-21 09:07:02,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:07:02,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:07:02,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:07:02,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:07:02,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:07:02,777 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-21 09:07:02,783 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 940 places, 948 transitions, 1909 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:02,783 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:07:02,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-21 09:07:02,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:07:03,360 INFO L130 PetriNetUnfolder]: 47/1527 cut-off events. [2022-11-21 09:07:03,360 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-21 09:07:03,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1612 conditions, 1527 events. 47/1527 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6629 event pairs, 18 based on Foata normal form. 0/1324 useless extension candidates. Maximal degree in co-relation 1566. Up to 55 conditions per place. [2022-11-21 09:07:03,389 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/947 dead transitions. [2022-11-21 09:07:03,389 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 941 places, 947 transitions, 1947 flow [2022-11-21 09:07:03,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:07:03,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:07:03,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-21 09:07:03,398 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-21 09:07:03,398 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-21 09:07:03,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-21 09:07:03,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:07:03,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-21 09:07:03,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:03,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:03,417 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:03,418 INFO L175 Difference]: Start difference. First operand has 940 places, 948 transitions, 1909 flow. Second operand 3 states and 3033 transitions. [2022-11-21 09:07:03,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 941 places, 947 transitions, 1947 flow [2022-11-21 09:07:03,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 939 places, 947 transitions, 1943 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:07:03,441 INFO L231 Difference]: Finished difference. Result has 939 places, 947 transitions, 1907 flow [2022-11-21 09:07:03,442 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1903, PETRI_DIFFERENCE_MINUEND_PLACES=937, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=947, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=945, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1907, PETRI_PLACES=939, PETRI_TRANSITIONS=947} [2022-11-21 09:07:03,443 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -52 predicate places. [2022-11-21 09:07:03,444 INFO L495 AbstractCegarLoop]: Abstraction has has 939 places, 947 transitions, 1907 flow [2022-11-21 09:07:03,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:03,446 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:07:03,446 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] [2022-11-21 09:07:03,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 09:07:03,447 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-21 09:07:03,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:07:03,447 INFO L85 PathProgramCache]: Analyzing trace with hash -2095493891, now seen corresponding path program 1 times [2022-11-21 09:07:03,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:07:03,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511072939] [2022-11-21 09:07:03,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:03,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:07:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:03,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:07:03,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:07:03,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511072939] [2022-11-21 09:07:03,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511072939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:07:03,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:07:03,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:07:03,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744321793] [2022-11-21 09:07:03,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:07:03,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:07:03,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:07:03,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:07:03,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:07:03,513 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-21 09:07:03,518 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 939 places, 947 transitions, 1907 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:03,518 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:07:03,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-21 09:07:03,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:07:04,027 INFO L130 PetriNetUnfolder]: 47/1488 cut-off events. [2022-11-21 09:07:04,027 INFO L131 PetriNetUnfolder]: For 3/21 co-relation queries the response was YES. [2022-11-21 09:07:04,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1573 conditions, 1488 events. 47/1488 cut-off events. For 3/21 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6121 event pairs, 18 based on Foata normal form. 0/1292 useless extension candidates. Maximal degree in co-relation 1527. Up to 55 conditions per place. [2022-11-21 09:07:04,049 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/946 dead transitions. [2022-11-21 09:07:04,049 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 940 places, 946 transitions, 1945 flow [2022-11-21 09:07:04,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:07:04,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:07:04,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-21 09:07:04,056 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-21 09:07:04,056 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-21 09:07:04,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-21 09:07:04,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:07:04,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-21 09:07:04,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:04,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:04,112 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:04,113 INFO L175 Difference]: Start difference. First operand has 939 places, 947 transitions, 1907 flow. Second operand 3 states and 3033 transitions. [2022-11-21 09:07:04,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 940 places, 946 transitions, 1945 flow [2022-11-21 09:07:04,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 938 places, 946 transitions, 1941 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:07:04,128 INFO L231 Difference]: Finished difference. Result has 938 places, 946 transitions, 1905 flow [2022-11-21 09:07:04,130 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1901, PETRI_DIFFERENCE_MINUEND_PLACES=936, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=946, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=944, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1905, PETRI_PLACES=938, PETRI_TRANSITIONS=946} [2022-11-21 09:07:04,131 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -53 predicate places. [2022-11-21 09:07:04,131 INFO L495 AbstractCegarLoop]: Abstraction has has 938 places, 946 transitions, 1905 flow [2022-11-21 09:07:04,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:04,134 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:07:04,134 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] [2022-11-21 09:07:04,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 09:07:04,134 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-21 09:07:04,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:07:04,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1851955568, now seen corresponding path program 1 times [2022-11-21 09:07:04,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:07:04,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454757118] [2022-11-21 09:07:04,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:04,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:07:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:04,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:07:04,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:07:04,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454757118] [2022-11-21 09:07:04,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454757118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:07:04,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:07:04,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:07:04,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546035308] [2022-11-21 09:07:04,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:07:04,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:07:04,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:07:04,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:07:04,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:07:04,218 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-21 09:07:04,220 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 938 places, 946 transitions, 1905 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:04,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:07:04,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-21 09:07:04,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:07:04,560 INFO L130 PetriNetUnfolder]: 26/1140 cut-off events. [2022-11-21 09:07:04,561 INFO L131 PetriNetUnfolder]: For 6/12 co-relation queries the response was YES. [2022-11-21 09:07:04,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1186 conditions, 1140 events. 26/1140 cut-off events. For 6/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3110 event pairs, 6 based on Foata normal form. 0/1005 useless extension candidates. Maximal degree in co-relation 1140. Up to 31 conditions per place. [2022-11-21 09:07:04,580 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/945 dead transitions. [2022-11-21 09:07:04,580 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 939 places, 945 transitions, 1943 flow [2022-11-21 09:07:04,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:07:04,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:07:04,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-21 09:07:04,586 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-21 09:07:04,587 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-21 09:07:04,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-21 09:07:04,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:07:04,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-21 09:07:04,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:04,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:04,602 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:04,602 INFO L175 Difference]: Start difference. First operand has 938 places, 946 transitions, 1905 flow. Second operand 3 states and 3033 transitions. [2022-11-21 09:07:04,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 939 places, 945 transitions, 1943 flow [2022-11-21 09:07:04,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 937 places, 945 transitions, 1939 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:07:04,619 INFO L231 Difference]: Finished difference. Result has 937 places, 945 transitions, 1903 flow [2022-11-21 09:07:04,621 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1899, PETRI_DIFFERENCE_MINUEND_PLACES=935, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=945, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=943, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1903, PETRI_PLACES=937, PETRI_TRANSITIONS=945} [2022-11-21 09:07:04,622 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -54 predicate places. [2022-11-21 09:07:04,622 INFO L495 AbstractCegarLoop]: Abstraction has has 937 places, 945 transitions, 1903 flow [2022-11-21 09:07:04,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:04,623 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:07:04,624 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] [2022-11-21 09:07:04,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 09:07:04,624 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-21 09:07:04,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:07:04,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1192903320, now seen corresponding path program 1 times [2022-11-21 09:07:04,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:07:04,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738967690] [2022-11-21 09:07:04,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:04,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:07:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:04,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:07:04,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:07:04,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738967690] [2022-11-21 09:07:04,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738967690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:07:04,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:07:04,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:07:04,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107060544] [2022-11-21 09:07:04,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:07:04,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:07:04,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:07:04,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:07:04,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:07:04,679 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-21 09:07:04,682 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 937 places, 945 transitions, 1903 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:04,682 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:07:04,682 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-21 09:07:04,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:07:05,118 INFO L130 PetriNetUnfolder]: 44/1383 cut-off events. [2022-11-21 09:07:05,118 INFO L131 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-11-21 09:07:05,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1459 conditions, 1383 events. 44/1383 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5289 event pairs, 18 based on Foata normal form. 0/1200 useless extension candidates. Maximal degree in co-relation 1413. Up to 55 conditions per place. [2022-11-21 09:07:05,145 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/944 dead transitions. [2022-11-21 09:07:05,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 938 places, 944 transitions, 1941 flow [2022-11-21 09:07:05,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:07:05,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:07:05,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-21 09:07:05,151 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-21 09:07:05,151 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-21 09:07:05,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-21 09:07:05,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:07:05,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-21 09:07:05,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:05,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:05,166 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:05,166 INFO L175 Difference]: Start difference. First operand has 937 places, 945 transitions, 1903 flow. Second operand 3 states and 3033 transitions. [2022-11-21 09:07:05,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 938 places, 944 transitions, 1941 flow [2022-11-21 09:07:05,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 936 places, 944 transitions, 1937 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:07:05,185 INFO L231 Difference]: Finished difference. Result has 936 places, 944 transitions, 1901 flow [2022-11-21 09:07:05,187 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1897, PETRI_DIFFERENCE_MINUEND_PLACES=934, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=944, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=942, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1901, PETRI_PLACES=936, PETRI_TRANSITIONS=944} [2022-11-21 09:07:05,187 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -55 predicate places. [2022-11-21 09:07:05,187 INFO L495 AbstractCegarLoop]: Abstraction has has 936 places, 944 transitions, 1901 flow [2022-11-21 09:07:05,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:05,189 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:07:05,189 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] [2022-11-21 09:07:05,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 09:07:05,190 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-21 09:07:05,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:07:05,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1535219156, now seen corresponding path program 1 times [2022-11-21 09:07:05,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:07:05,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788196677] [2022-11-21 09:07:05,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:05,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:07:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:05,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:07:05,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:07:05,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788196677] [2022-11-21 09:07:05,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788196677] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:07:05,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:07:05,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:07:05,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800511595] [2022-11-21 09:07:05,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:07:05,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:07:05,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:07:05,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:07:05,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:07:05,240 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-21 09:07:05,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 936 places, 944 transitions, 1901 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:05,244 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:07:05,244 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-21 09:07:05,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:07:05,685 INFO L130 PetriNetUnfolder]: 44/1344 cut-off events. [2022-11-21 09:07:05,686 INFO L131 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-11-21 09:07:05,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1420 conditions, 1344 events. 44/1344 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5110 event pairs, 18 based on Foata normal form. 0/1168 useless extension candidates. Maximal degree in co-relation 1374. Up to 55 conditions per place. [2022-11-21 09:07:05,710 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/943 dead transitions. [2022-11-21 09:07:05,710 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 937 places, 943 transitions, 1939 flow [2022-11-21 09:07:05,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:07:05,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:07:05,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-21 09:07:05,718 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-21 09:07:05,719 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-21 09:07:05,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-21 09:07:05,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:07:05,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-21 09:07:05,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:05,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:05,736 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:05,736 INFO L175 Difference]: Start difference. First operand has 936 places, 944 transitions, 1901 flow. Second operand 3 states and 3033 transitions. [2022-11-21 09:07:05,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 937 places, 943 transitions, 1939 flow [2022-11-21 09:07:05,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 935 places, 943 transitions, 1935 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:07:05,753 INFO L231 Difference]: Finished difference. Result has 935 places, 943 transitions, 1899 flow [2022-11-21 09:07:05,754 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1895, PETRI_DIFFERENCE_MINUEND_PLACES=933, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=943, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=941, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1899, PETRI_PLACES=935, PETRI_TRANSITIONS=943} [2022-11-21 09:07:05,757 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -56 predicate places. [2022-11-21 09:07:05,757 INFO L495 AbstractCegarLoop]: Abstraction has has 935 places, 943 transitions, 1899 flow [2022-11-21 09:07:05,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:05,758 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:07:05,759 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] [2022-11-21 09:07:05,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 09:07:05,759 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-21 09:07:05,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:07:05,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1286036932, now seen corresponding path program 1 times [2022-11-21 09:07:05,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:07:05,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249737060] [2022-11-21 09:07:05,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:05,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:07:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:05,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:07:05,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:07:05,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249737060] [2022-11-21 09:07:05,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249737060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:07:05,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:07:05,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:07:05,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181660068] [2022-11-21 09:07:05,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:07:05,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:07:05,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:07:05,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:07:05,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:07:05,823 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-21 09:07:05,825 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 935 places, 943 transitions, 1899 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:05,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:07:05,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-21 09:07:05,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:07:06,096 INFO L130 PetriNetUnfolder]: 23/976 cut-off events. [2022-11-21 09:07:06,096 INFO L131 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2022-11-21 09:07:06,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 976 events. 23/976 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2299 event pairs, 6 based on Foata normal form. 0/872 useless extension candidates. Maximal degree in co-relation 972. Up to 30 conditions per place. [2022-11-21 09:07:06,118 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 17 selfloop transitions, 2 changer transitions 0/942 dead transitions. [2022-11-21 09:07:06,118 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 936 places, 942 transitions, 1935 flow [2022-11-21 09:07:06,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:07:06,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:07:06,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3032 transitions. [2022-11-21 09:07:06,127 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9579778830963666 [2022-11-21 09:07:06,127 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3032 transitions. [2022-11-21 09:07:06,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3032 transitions. [2022-11-21 09:07:06,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:07:06,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3032 transitions. [2022-11-21 09:07:06,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1010.6666666666666) internal successors, (3032), 3 states have internal predecessors, (3032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:06,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:06,141 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:06,142 INFO L175 Difference]: Start difference. First operand has 935 places, 943 transitions, 1899 flow. Second operand 3 states and 3032 transitions. [2022-11-21 09:07:06,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 936 places, 942 transitions, 1935 flow [2022-11-21 09:07:06,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 934 places, 942 transitions, 1931 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:07:06,158 INFO L231 Difference]: Finished difference. Result has 934 places, 942 transitions, 1897 flow [2022-11-21 09:07:06,160 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1893, PETRI_DIFFERENCE_MINUEND_PLACES=932, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=942, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=940, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1897, PETRI_PLACES=934, PETRI_TRANSITIONS=942} [2022-11-21 09:07:06,161 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -57 predicate places. [2022-11-21 09:07:06,161 INFO L495 AbstractCegarLoop]: Abstraction has has 934 places, 942 transitions, 1897 flow [2022-11-21 09:07:06,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:06,162 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:07:06,163 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] [2022-11-21 09:07:06,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 09:07:06,163 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-21 09:07:06,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:07:06,164 INFO L85 PathProgramCache]: Analyzing trace with hash -765294360, now seen corresponding path program 1 times [2022-11-21 09:07:06,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:07:06,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613595769] [2022-11-21 09:07:06,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:06,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:07:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:06,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:07:06,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:07:06,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613595769] [2022-11-21 09:07:06,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613595769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:07:06,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:07:06,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:07:06,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481031] [2022-11-21 09:07:06,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:07:06,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:07:06,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:07:06,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:07:06,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:07:06,215 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-21 09:07:06,218 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 934 places, 942 transitions, 1897 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:06,218 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:07:06,218 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-21 09:07:06,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:07:06,601 INFO L130 PetriNetUnfolder]: 41/1219 cut-off events. [2022-11-21 09:07:06,601 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-21 09:07:06,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1286 conditions, 1219 events. 41/1219 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3865 event pairs, 18 based on Foata normal form. 0/1066 useless extension candidates. Maximal degree in co-relation 1240. Up to 55 conditions per place. [2022-11-21 09:07:06,628 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/941 dead transitions. [2022-11-21 09:07:06,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 935 places, 941 transitions, 1935 flow [2022-11-21 09:07:06,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:07:06,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:07:06,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-21 09:07:06,634 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-21 09:07:06,634 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-21 09:07:06,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-21 09:07:06,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:07:06,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-21 09:07:06,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:06,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:06,646 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:06,646 INFO L175 Difference]: Start difference. First operand has 934 places, 942 transitions, 1897 flow. Second operand 3 states and 3033 transitions. [2022-11-21 09:07:06,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 935 places, 941 transitions, 1935 flow [2022-11-21 09:07:06,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 933 places, 941 transitions, 1931 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:07:06,662 INFO L231 Difference]: Finished difference. Result has 933 places, 941 transitions, 1895 flow [2022-11-21 09:07:06,664 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1891, PETRI_DIFFERENCE_MINUEND_PLACES=931, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=941, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=939, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1895, PETRI_PLACES=933, PETRI_TRANSITIONS=941} [2022-11-21 09:07:06,666 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -58 predicate places. [2022-11-21 09:07:06,666 INFO L495 AbstractCegarLoop]: Abstraction has has 933 places, 941 transitions, 1895 flow [2022-11-21 09:07:06,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:06,667 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:07:06,667 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] [2022-11-21 09:07:06,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 09:07:06,668 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-21 09:07:06,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:07:06,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1312072732, now seen corresponding path program 1 times [2022-11-21 09:07:06,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:07:06,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671656107] [2022-11-21 09:07:06,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:06,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:07:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:06,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:07:06,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:07:06,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671656107] [2022-11-21 09:07:06,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671656107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:07:06,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:07:06,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:07:06,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044717340] [2022-11-21 09:07:06,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:07:06,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:07:06,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:07:06,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:07:06,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:07:06,724 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-21 09:07:06,727 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 933 places, 941 transitions, 1895 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:06,727 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:07:06,727 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-21 09:07:06,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:07:07,148 INFO L130 PetriNetUnfolder]: 41/1180 cut-off events. [2022-11-21 09:07:07,149 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-21 09:07:07,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1247 conditions, 1180 events. 41/1180 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3654 event pairs, 18 based on Foata normal form. 0/1034 useless extension candidates. Maximal degree in co-relation 1201. Up to 55 conditions per place. [2022-11-21 09:07:07,169 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/940 dead transitions. [2022-11-21 09:07:07,169 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 934 places, 940 transitions, 1933 flow [2022-11-21 09:07:07,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:07:07,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:07:07,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-21 09:07:07,175 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-21 09:07:07,175 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-21 09:07:07,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-21 09:07:07,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:07:07,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-21 09:07:07,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:07,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:07,192 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:07,192 INFO L175 Difference]: Start difference. First operand has 933 places, 941 transitions, 1895 flow. Second operand 3 states and 3033 transitions. [2022-11-21 09:07:07,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 934 places, 940 transitions, 1933 flow [2022-11-21 09:07:07,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 932 places, 940 transitions, 1929 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:07:07,210 INFO L231 Difference]: Finished difference. Result has 932 places, 940 transitions, 1893 flow [2022-11-21 09:07:07,211 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1889, PETRI_DIFFERENCE_MINUEND_PLACES=930, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=940, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=938, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1893, PETRI_PLACES=932, PETRI_TRANSITIONS=940} [2022-11-21 09:07:07,213 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -59 predicate places. [2022-11-21 09:07:07,213 INFO L495 AbstractCegarLoop]: Abstraction has has 932 places, 940 transitions, 1893 flow [2022-11-21 09:07:07,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:07,214 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:07:07,214 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] [2022-11-21 09:07:07,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 09:07:07,215 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-21 09:07:07,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:07:07,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1647028344, now seen corresponding path program 1 times [2022-11-21 09:07:07,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:07:07,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268611445] [2022-11-21 09:07:07,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:07,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:07:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:07,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:07:07,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:07:07,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268611445] [2022-11-21 09:07:07,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268611445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:07:07,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:07:07,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:07:07,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653585315] [2022-11-21 09:07:07,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:07:07,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:07:07,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:07:07,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:07:07,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:07:07,314 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1055 [2022-11-21 09:07:07,317 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 932 places, 940 transitions, 1893 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:07,317 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:07:07,317 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1055 [2022-11-21 09:07:07,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:07:08,651 INFO L130 PetriNetUnfolder]: 191/3573 cut-off events. [2022-11-21 09:07:08,651 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-21 09:07:08,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3895 conditions, 3573 events. 191/3573 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 25549 event pairs, 132 based on Foata normal form. 0/3047 useless extension candidates. Maximal degree in co-relation 3849. Up to 256 conditions per place. [2022-11-21 09:07:08,764 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 21 selfloop transitions, 2 changer transitions 0/939 dead transitions. [2022-11-21 09:07:08,764 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 933 places, 939 transitions, 1937 flow [2022-11-21 09:07:08,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:07:08,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:07:08,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3027 transitions. [2022-11-21 09:07:08,770 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9563981042654028 [2022-11-21 09:07:08,770 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3027 transitions. [2022-11-21 09:07:08,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3027 transitions. [2022-11-21 09:07:08,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:07:08,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3027 transitions. [2022-11-21 09:07:08,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1009.0) internal successors, (3027), 3 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:08,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:08,781 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:08,782 INFO L175 Difference]: Start difference. First operand has 932 places, 940 transitions, 1893 flow. Second operand 3 states and 3027 transitions. [2022-11-21 09:07:08,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 933 places, 939 transitions, 1937 flow [2022-11-21 09:07:08,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 931 places, 939 transitions, 1933 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:07:08,802 INFO L231 Difference]: Finished difference. Result has 931 places, 939 transitions, 1891 flow [2022-11-21 09:07:08,804 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1887, PETRI_DIFFERENCE_MINUEND_PLACES=929, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=939, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=937, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1891, PETRI_PLACES=931, PETRI_TRANSITIONS=939} [2022-11-21 09:07:08,804 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -60 predicate places. [2022-11-21 09:07:08,805 INFO L495 AbstractCegarLoop]: Abstraction has has 931 places, 939 transitions, 1891 flow [2022-11-21 09:07:08,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:08,806 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:07:08,806 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] [2022-11-21 09:07:08,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 09:07:08,806 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-21 09:07:08,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:07:08,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1007070656, now seen corresponding path program 1 times [2022-11-21 09:07:08,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:07:08,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949955631] [2022-11-21 09:07:08,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:08,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:07:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:09,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:07:09,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:07:09,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949955631] [2022-11-21 09:07:09,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949955631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:07:09,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:07:09,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:07:09,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063337154] [2022-11-21 09:07:09,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:07:09,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 09:07:09,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:07:09,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 09:07:09,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 09:07:09,699 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 851 out of 1055 [2022-11-21 09:07:09,703 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 931 places, 939 transitions, 1891 flow. Second operand has 6 states, 6 states have (on average 852.8333333333334) internal successors, (5117), 6 states have internal predecessors, (5117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:07:09,703 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:07:09,703 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 851 of 1055 [2022-11-21 09:07:09,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand