./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.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_c315dc5a-9986-4757-8f35-c5fce5366b4c/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c315dc5a-9986-4757-8f35-c5fce5366b4c/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_c315dc5a-9986-4757-8f35-c5fce5366b4c/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c315dc5a-9986-4757-8f35-c5fce5366b4c/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c315dc5a-9986-4757-8f35-c5fce5366b4c/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_c315dc5a-9986-4757-8f35-c5fce5366b4c/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 c0b350b5c7953744a22c8334b20c4dc8efdff09f1ecb36de8b1744d1e20f0260 --- 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 09:04:05,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:04:05,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:04:05,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:04:05,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:04:05,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:04:05,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:04:05,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:04:05,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:04:05,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:04:05,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:04:05,242 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:04:05,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:04:05,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:04:05,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:04:05,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:04:05,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:04:05,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:04:05,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:04:05,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:04:05,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:04:05,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:04:05,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:04:05,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:04:05,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:04:05,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:04:05,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:04:05,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:04:05,288 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:04:05,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:04:05,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:04:05,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:04:05,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:04:05,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:04:05,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:04:05,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:04:05,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:04:05,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:04:05,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:04:05,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:04:05,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:04:05,301 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c315dc5a-9986-4757-8f35-c5fce5366b4c/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 09:04:05,346 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:04:05,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:04:05,348 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:04:05,348 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:04:05,349 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:04:05,349 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:04:05,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:04:05,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:04:05,351 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:04:05,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:04:05,353 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 09:04:05,353 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 09:04:05,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:04:05,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 09:04:05,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:04:05,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:04:05,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:04:05,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:04:05,355 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 09:04:05,355 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 09:04:05,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:04:05,356 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:04:05,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:04:05,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:04:05,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:04:05,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:04:05,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:04:05,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:04:05,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:04:05,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:04:05,359 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:04:05,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:04:05,359 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:04:05,360 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:04:05,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:04:05,360 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_c315dc5a-9986-4757-8f35-c5fce5366b4c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c315dc5a-9986-4757-8f35-c5fce5366b4c/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0b350b5c7953744a22c8334b20c4dc8efdff09f1ecb36de8b1744d1e20f0260 [2022-11-21 09:04:05,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:04:05,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:04:05,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:04:05,772 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:04:05,772 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:04:05,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c315dc5a-9986-4757-8f35-c5fce5366b4c/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2022-11-21 09:04:09,039 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:04:09,288 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:04:09,289 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c315dc5a-9986-4757-8f35-c5fce5366b4c/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2022-11-21 09:04:09,297 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c315dc5a-9986-4757-8f35-c5fce5366b4c/bin/uautomizer-vX5HgA9Q3a/data/d13a384ba/9d762126cf284a1d9b36ccedc8c058b0/FLAG48129300e [2022-11-21 09:04:09,314 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c315dc5a-9986-4757-8f35-c5fce5366b4c/bin/uautomizer-vX5HgA9Q3a/data/d13a384ba/9d762126cf284a1d9b36ccedc8c058b0 [2022-11-21 09:04:09,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:04:09,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:04:09,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:04:09,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:04:09,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:04:09,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:04:09" (1/1) ... [2022-11-21 09:04:09,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f3c0b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:09, skipping insertion in model container [2022-11-21 09:04:09,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:04:09" (1/1) ... [2022-11-21 09:04:09,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:04:09,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:04:09,706 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_c315dc5a-9986-4757-8f35-c5fce5366b4c/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4225,4238] [2022-11-21 09:04:09,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:04:09,733 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:04:09,778 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_c315dc5a-9986-4757-8f35-c5fce5366b4c/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4225,4238] [2022-11-21 09:04:09,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:04:09,801 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:04:09,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:09 WrapperNode [2022-11-21 09:04:09,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:04:09,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:04:09,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:04:09,804 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:04:09,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:09" (1/1) ... [2022-11-21 09:04:09,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:09" (1/1) ... [2022-11-21 09:04:09,919 INFO L138 Inliner]: procedures = 29, calls = 88, calls flagged for inlining = 22, calls inlined = 32, statements flattened = 673 [2022-11-21 09:04:09,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:04:09,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:04:09,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:04:09,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:04:09,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:09" (1/1) ... [2022-11-21 09:04:09,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:09" (1/1) ... [2022-11-21 09:04:09,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:09" (1/1) ... [2022-11-21 09:04:09,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:09" (1/1) ... [2022-11-21 09:04:10,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:09" (1/1) ... [2022-11-21 09:04:10,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:09" (1/1) ... [2022-11-21 09:04:10,034 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:09" (1/1) ... [2022-11-21 09:04:10,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:09" (1/1) ... [2022-11-21 09:04:10,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:04:10,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:04:10,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:04:10,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:04:10,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:09" (1/1) ... [2022-11-21 09:04:10,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:04:10,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c315dc5a-9986-4757-8f35-c5fce5366b4c/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:04:10,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c315dc5a-9986-4757-8f35-c5fce5366b4c/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:04:10,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c315dc5a-9986-4757-8f35-c5fce5366b4c/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:04:10,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:04:10,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 09:04:10,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 09:04:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 09:04:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-21 09:04:10,161 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-21 09:04:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-21 09:04:10,161 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-21 09:04:10,162 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-21 09:04:10,162 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-21 09:04:10,162 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-21 09:04:10,162 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-21 09:04:10,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 09:04:10,163 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-21 09:04:10,163 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-21 09:04:10,163 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-21 09:04:10,163 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-21 09:04:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 09:04:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 09:04:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 09:04:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:04:10,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:04:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 09:04:10,167 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 09:04:10,396 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:04:10,399 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:04:11,660 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:04:12,192 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:04:12,192 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-21 09:04:12,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:04:12 BoogieIcfgContainer [2022-11-21 09:04:12,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:04:12,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:04:12,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:04:12,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:04:12,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:04:09" (1/3) ... [2022-11-21 09:04:12,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f65641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:04:12, skipping insertion in model container [2022-11-21 09:04:12,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:09" (2/3) ... [2022-11-21 09:04:12,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f65641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:04:12, skipping insertion in model container [2022-11-21 09:04:12,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:04:12" (3/3) ... [2022-11-21 09:04:12,213 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c [2022-11-21 09:04:12,225 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 09:04:12,238 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:04:12,238 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 89 error locations. [2022-11-21 09:04:12,238 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 09:04:12,463 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-21 09:04:12,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 572 places, 581 transitions, 1234 flow [2022-11-21 09:04:12,872 INFO L130 PetriNetUnfolder]: 26/505 cut-off events. [2022-11-21 09:04:12,873 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-21 09:04:12,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 505 events. 26/505 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 865 event pairs, 0 based on Foata normal form. 0/390 useless extension candidates. Maximal degree in co-relation 428. Up to 3 conditions per place. [2022-11-21 09:04:12,887 INFO L82 GeneralOperation]: Start removeDead. Operand has 572 places, 581 transitions, 1234 flow [2022-11-21 09:04:12,905 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 481 places, 487 transitions, 1022 flow [2022-11-21 09:04:12,927 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:04:12,937 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;@6fef615c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:04:12,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 157 error locations. [2022-11-21 09:04:12,947 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2022-11-21 09:04:12,948 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 09:04:12,949 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:12,950 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] [2022-11-21 09:04:12,951 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:04:12,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:12,957 INFO L85 PathProgramCache]: Analyzing trace with hash -968705940, now seen corresponding path program 1 times [2022-11-21 09:04:12,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:12,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109165926] [2022-11-21 09:04:12,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:12,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:13,225 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 09:04:13,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:13,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109165926] [2022-11-21 09:04:13,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109165926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:13,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:13,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:04:13,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452450832] [2022-11-21 09:04:13,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:13,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:04:13,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:13,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:13,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:13,301 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 585 [2022-11-21 09:04:13,312 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 487 transitions, 1022 flow. Second operand has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states 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 09:04:13,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:13,313 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 585 [2022-11-21 09:04:13,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:14,166 INFO L130 PetriNetUnfolder]: 483/1589 cut-off events. [2022-11-21 09:04:14,167 INFO L131 PetriNetUnfolder]: For 388/424 co-relation queries the response was YES. [2022-11-21 09:04:14,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2628 conditions, 1589 events. 483/1589 cut-off events. For 388/424 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 7491 event pairs, 234 based on Foata normal form. 192/1536 useless extension candidates. Maximal degree in co-relation 2172. Up to 664 conditions per place. [2022-11-21 09:04:14,194 INFO L137 encePairwiseOnDemand]: 521/585 looper letters, 35 selfloop transitions, 2 changer transitions 4/425 dead transitions. [2022-11-21 09:04:14,194 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 425 transitions, 972 flow [2022-11-21 09:04:14,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:04:14,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:04:14,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1488 transitions. [2022-11-21 09:04:14,221 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8478632478632478 [2022-11-21 09:04:14,222 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1488 transitions. [2022-11-21 09:04:14,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1488 transitions. [2022-11-21 09:04:14,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:14,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1488 transitions. [2022-11-21 09:04:14,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 496.0) internal successors, (1488), 3 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states 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 09:04:14,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:14,255 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:14,257 INFO L175 Difference]: Start difference. First operand has 481 places, 487 transitions, 1022 flow. Second operand 3 states and 1488 transitions. [2022-11-21 09:04:14,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 425 transitions, 972 flow [2022-11-21 09:04:14,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 425 transitions, 940 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-11-21 09:04:14,288 INFO L231 Difference]: Finished difference. Result has 420 places, 421 transitions, 862 flow [2022-11-21 09:04:14,291 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=866, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=862, PETRI_PLACES=420, PETRI_TRANSITIONS=421} [2022-11-21 09:04:14,295 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -61 predicate places. [2022-11-21 09:04:14,296 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 421 transitions, 862 flow [2022-11-21 09:04:14,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states 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 09:04:14,297 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:14,297 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:04:14,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 09:04:14,298 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:04:14,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:14,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1267639256, now seen corresponding path program 1 times [2022-11-21 09:04:14,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:14,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049923254] [2022-11-21 09:04:14,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:14,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:14,453 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 09:04:14,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:14,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049923254] [2022-11-21 09:04:14,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049923254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:14,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:14,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:04:14,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014332111] [2022-11-21 09:04:14,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:14,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:04:14,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:14,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:14,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:14,459 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 585 [2022-11-21 09:04:14,462 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 421 transitions, 862 flow. Second operand has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states 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 09:04:14,462 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:14,462 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 585 [2022-11-21 09:04:14,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:15,069 INFO L130 PetriNetUnfolder]: 483/1712 cut-off events. [2022-11-21 09:04:15,070 INFO L131 PetriNetUnfolder]: For 96/138 co-relation queries the response was YES. [2022-11-21 09:04:15,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2475 conditions, 1712 events. 483/1712 cut-off events. For 96/138 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8468 event pairs, 234 based on Foata normal form. 0/1428 useless extension candidates. Maximal degree in co-relation 2434. Up to 664 conditions per place. [2022-11-21 09:04:15,092 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 35 selfloop transitions, 2 changer transitions 0/420 dead transitions. [2022-11-21 09:04:15,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 420 transitions, 934 flow [2022-11-21 09:04:15,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:04:15,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:04:15,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1427 transitions. [2022-11-21 09:04:15,096 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8131054131054131 [2022-11-21 09:04:15,097 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1427 transitions. [2022-11-21 09:04:15,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1427 transitions. [2022-11-21 09:04:15,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:15,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1427 transitions. [2022-11-21 09:04:15,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:15,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:15,108 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:15,108 INFO L175 Difference]: Start difference. First operand has 420 places, 421 transitions, 862 flow. Second operand 3 states and 1427 transitions. [2022-11-21 09:04:15,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 420 transitions, 934 flow [2022-11-21 09:04:15,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 420 transitions, 930 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:04:15,117 INFO L231 Difference]: Finished difference. Result has 415 places, 420 transitions, 860 flow [2022-11-21 09:04:15,118 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=860, PETRI_PLACES=415, PETRI_TRANSITIONS=420} [2022-11-21 09:04:15,119 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -66 predicate places. [2022-11-21 09:04:15,119 INFO L495 AbstractCegarLoop]: Abstraction has has 415 places, 420 transitions, 860 flow [2022-11-21 09:04:15,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states 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 09:04:15,121 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:15,121 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:04:15,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 09:04:15,122 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:04:15,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:15,122 INFO L85 PathProgramCache]: Analyzing trace with hash -628427822, now seen corresponding path program 1 times [2022-11-21 09:04:15,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:15,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976766073] [2022-11-21 09:04:15,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:15,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:15,232 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 09:04:15,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:15,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976766073] [2022-11-21 09:04:15,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976766073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:15,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:15,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:04:15,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247257382] [2022-11-21 09:04:15,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:15,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:04:15,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:15,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:15,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:15,238 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-21 09:04:15,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 420 transitions, 860 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 09:04:15,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:15,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-21 09:04:15,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:15,741 INFO L130 PetriNetUnfolder]: 414/1433 cut-off events. [2022-11-21 09:04:15,741 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-21 09:04:15,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2079 conditions, 1433 events. 414/1433 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6493 event pairs, 192 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 2031. Up to 556 conditions per place. [2022-11-21 09:04:15,761 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 29 selfloop transitions, 2 changer transitions 0/419 dead transitions. [2022-11-21 09:04:15,762 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 419 transitions, 920 flow [2022-11-21 09:04:15,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:04:15,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:04:15,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-21 09:04:15,768 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8250712250712251 [2022-11-21 09:04:15,768 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-21 09:04:15,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-21 09:04:15,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:15,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-21 09:04:15,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 482.6666666666667) internal successors, (1448), 3 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states 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 09:04:15,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:15,782 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:15,783 INFO L175 Difference]: Start difference. First operand has 415 places, 420 transitions, 860 flow. Second operand 3 states and 1448 transitions. [2022-11-21 09:04:15,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 419 transitions, 920 flow [2022-11-21 09:04:15,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 419 transitions, 916 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:04:15,795 INFO L231 Difference]: Finished difference. Result has 414 places, 419 transitions, 858 flow [2022-11-21 09:04:15,796 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=858, PETRI_PLACES=414, PETRI_TRANSITIONS=419} [2022-11-21 09:04:15,797 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -67 predicate places. [2022-11-21 09:04:15,798 INFO L495 AbstractCegarLoop]: Abstraction has has 414 places, 419 transitions, 858 flow [2022-11-21 09:04:15,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 09:04:15,799 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:15,799 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] [2022-11-21 09:04:15,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 09:04:15,800 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:04:15,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:15,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1743410668, now seen corresponding path program 1 times [2022-11-21 09:04:15,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:15,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427585538] [2022-11-21 09:04:15,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:15,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:15,901 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 09:04:15,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:15,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427585538] [2022-11-21 09:04:15,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427585538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:15,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:15,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:04:15,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696063445] [2022-11-21 09:04:15,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:15,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:04:15,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:15,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:15,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:15,907 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-21 09:04:15,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 419 transitions, 858 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 09:04:15,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:15,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-21 09:04:15,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:16,392 INFO L130 PetriNetUnfolder]: 414/1432 cut-off events. [2022-11-21 09:04:16,393 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-21 09:04:16,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2078 conditions, 1432 events. 414/1432 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6480 event pairs, 192 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 2023. Up to 556 conditions per place. [2022-11-21 09:04:16,411 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 29 selfloop transitions, 2 changer transitions 0/418 dead transitions. [2022-11-21 09:04:16,412 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 418 transitions, 918 flow [2022-11-21 09:04:16,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:04:16,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:04:16,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-21 09:04:16,416 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8250712250712251 [2022-11-21 09:04:16,416 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-21 09:04:16,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-21 09:04:16,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:16,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-21 09:04:16,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 482.6666666666667) internal successors, (1448), 3 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states 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 09:04:16,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:16,428 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:16,428 INFO L175 Difference]: Start difference. First operand has 414 places, 419 transitions, 858 flow. Second operand 3 states and 1448 transitions. [2022-11-21 09:04:16,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 418 transitions, 918 flow [2022-11-21 09:04:16,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 418 transitions, 914 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:04:16,437 INFO L231 Difference]: Finished difference. Result has 413 places, 418 transitions, 856 flow [2022-11-21 09:04:16,438 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=856, PETRI_PLACES=413, PETRI_TRANSITIONS=418} [2022-11-21 09:04:16,439 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -68 predicate places. [2022-11-21 09:04:16,439 INFO L495 AbstractCegarLoop]: Abstraction has has 413 places, 418 transitions, 856 flow [2022-11-21 09:04:16,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 09:04:16,441 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:16,441 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:04:16,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 09:04:16,442 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:04:16,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:16,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1178463443, now seen corresponding path program 1 times [2022-11-21 09:04:16,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:16,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481238051] [2022-11-21 09:04:16,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:16,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:16,499 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 09:04:16,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:16,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481238051] [2022-11-21 09:04:16,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481238051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:16,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:16,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:04:16,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228579820] [2022-11-21 09:04:16,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:16,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:04:16,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:16,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:16,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:16,519 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-21 09:04:16,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 418 transitions, 856 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 09:04:16,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:16,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-21 09:04:16,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:16,959 INFO L130 PetriNetUnfolder]: 414/1431 cut-off events. [2022-11-21 09:04:16,960 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-21 09:04:16,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2077 conditions, 1431 events. 414/1431 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6469 event pairs, 192 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 2015. Up to 556 conditions per place. [2022-11-21 09:04:16,976 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 29 selfloop transitions, 2 changer transitions 0/417 dead transitions. [2022-11-21 09:04:16,976 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 417 transitions, 916 flow [2022-11-21 09:04:16,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:04:16,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:04:16,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-21 09:04:16,980 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8250712250712251 [2022-11-21 09:04:16,980 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-21 09:04:16,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-21 09:04:16,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:16,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-21 09:04:16,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 482.6666666666667) internal successors, (1448), 3 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states 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 09:04:16,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:16,991 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:16,991 INFO L175 Difference]: Start difference. First operand has 413 places, 418 transitions, 856 flow. Second operand 3 states and 1448 transitions. [2022-11-21 09:04:16,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 417 transitions, 916 flow [2022-11-21 09:04:16,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 417 transitions, 912 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:04:17,000 INFO L231 Difference]: Finished difference. Result has 412 places, 417 transitions, 854 flow [2022-11-21 09:04:17,001 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=854, PETRI_PLACES=412, PETRI_TRANSITIONS=417} [2022-11-21 09:04:17,002 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -69 predicate places. [2022-11-21 09:04:17,002 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 417 transitions, 854 flow [2022-11-21 09:04:17,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 09:04:17,004 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:17,004 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 09:04:17,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 09:04:17,004 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:04:17,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:17,005 INFO L85 PathProgramCache]: Analyzing trace with hash 774376349, now seen corresponding path program 1 times [2022-11-21 09:04:17,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:17,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128214635] [2022-11-21 09:04:17,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:17,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:17,060 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 09:04:17,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:17,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128214635] [2022-11-21 09:04:17,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128214635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:17,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:17,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:04:17,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473762348] [2022-11-21 09:04:17,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:17,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:04:17,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:17,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:17,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:17,068 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-21 09:04:17,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 417 transitions, 854 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 09:04:17,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:17,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-21 09:04:17,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:17,524 INFO L130 PetriNetUnfolder]: 414/1430 cut-off events. [2022-11-21 09:04:17,524 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-21 09:04:17,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2076 conditions, 1430 events. 414/1430 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6497 event pairs, 192 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 2007. Up to 556 conditions per place. [2022-11-21 09:04:17,539 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 29 selfloop transitions, 2 changer transitions 0/416 dead transitions. [2022-11-21 09:04:17,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 416 transitions, 914 flow [2022-11-21 09:04:17,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:04:17,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:04:17,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-21 09:04:17,543 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8250712250712251 [2022-11-21 09:04:17,543 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-21 09:04:17,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-21 09:04:17,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:17,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-21 09:04:17,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 482.6666666666667) internal successors, (1448), 3 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states 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 09:04:17,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:17,554 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:17,555 INFO L175 Difference]: Start difference. First operand has 412 places, 417 transitions, 854 flow. Second operand 3 states and 1448 transitions. [2022-11-21 09:04:17,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 416 transitions, 914 flow [2022-11-21 09:04:17,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 416 transitions, 910 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:04:17,563 INFO L231 Difference]: Finished difference. Result has 411 places, 416 transitions, 852 flow [2022-11-21 09:04:17,564 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=852, PETRI_PLACES=411, PETRI_TRANSITIONS=416} [2022-11-21 09:04:17,567 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -70 predicate places. [2022-11-21 09:04:17,568 INFO L495 AbstractCegarLoop]: Abstraction has has 411 places, 416 transitions, 852 flow [2022-11-21 09:04:17,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 09:04:17,569 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:17,569 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] [2022-11-21 09:04:17,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 09:04:17,569 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:04:17,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:17,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1776436583, now seen corresponding path program 1 times [2022-11-21 09:04:17,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:17,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108514613] [2022-11-21 09:04:17,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:17,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:17,648 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 09:04:17,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:17,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108514613] [2022-11-21 09:04:17,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108514613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:17,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:17,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:04:17,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855769432] [2022-11-21 09:04:17,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:17,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:04:17,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:17,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:17,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:17,652 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 585 [2022-11-21 09:04:17,654 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 416 transitions, 852 flow. Second operand has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states 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 09:04:17,654 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:17,655 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 585 [2022-11-21 09:04:17,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:18,113 INFO L130 PetriNetUnfolder]: 414/1429 cut-off events. [2022-11-21 09:04:18,113 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-21 09:04:18,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2093 conditions, 1429 events. 414/1429 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6464 event pairs, 192 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 2017. Up to 574 conditions per place. [2022-11-21 09:04:18,129 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 47 selfloop transitions, 2 changer transitions 0/415 dead transitions. [2022-11-21 09:04:18,130 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 415 transitions, 948 flow [2022-11-21 09:04:18,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:04:18,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:04:18,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1412 transitions. [2022-11-21 09:04:18,135 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8045584045584045 [2022-11-21 09:04:18,135 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1412 transitions. [2022-11-21 09:04:18,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1412 transitions. [2022-11-21 09:04:18,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:18,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1412 transitions. [2022-11-21 09:04:18,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 470.6666666666667) internal successors, (1412), 3 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states 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 09:04:18,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:18,146 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:18,146 INFO L175 Difference]: Start difference. First operand has 411 places, 416 transitions, 852 flow. Second operand 3 states and 1412 transitions. [2022-11-21 09:04:18,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 415 transitions, 948 flow [2022-11-21 09:04:18,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 415 transitions, 944 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:04:18,159 INFO L231 Difference]: Finished difference. Result has 410 places, 415 transitions, 850 flow [2022-11-21 09:04:18,159 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=850, PETRI_PLACES=410, PETRI_TRANSITIONS=415} [2022-11-21 09:04:18,160 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -71 predicate places. [2022-11-21 09:04:18,160 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 415 transitions, 850 flow [2022-11-21 09:04:18,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states 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 09:04:18,161 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:18,161 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] [2022-11-21 09:04:18,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 09:04:18,162 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:04:18,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:18,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1046014902, now seen corresponding path program 1 times [2022-11-21 09:04:18,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:18,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636029366] [2022-11-21 09:04:18,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:18,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:18,274 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 09:04:18,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:18,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636029366] [2022-11-21 09:04:18,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636029366] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:18,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:18,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:04:18,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839448959] [2022-11-21 09:04:18,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:18,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:04:18,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:18,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:18,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:18,279 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 585 [2022-11-21 09:04:18,282 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 415 transitions, 850 flow. Second operand has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states 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 09:04:18,282 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:18,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 585 [2022-11-21 09:04:18,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:18,762 INFO L130 PetriNetUnfolder]: 414/1428 cut-off events. [2022-11-21 09:04:18,762 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-21 09:04:18,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2077 conditions, 1428 events. 414/1428 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6462 event pairs, 192 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 1994. Up to 559 conditions per place. [2022-11-21 09:04:18,782 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 32 selfloop transitions, 2 changer transitions 0/414 dead transitions. [2022-11-21 09:04:18,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 414 transitions, 916 flow [2022-11-21 09:04:18,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:04:18,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:04:18,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-11-21 09:04:18,786 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8216524216524217 [2022-11-21 09:04:18,786 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-11-21 09:04:18,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-11-21 09:04:18,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:18,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-11-21 09:04:18,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.6666666666667) internal successors, (1442), 3 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:18,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:18,796 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:18,796 INFO L175 Difference]: Start difference. First operand has 410 places, 415 transitions, 850 flow. Second operand 3 states and 1442 transitions. [2022-11-21 09:04:18,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 414 transitions, 916 flow [2022-11-21 09:04:18,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 414 transitions, 912 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:04:18,806 INFO L231 Difference]: Finished difference. Result has 409 places, 414 transitions, 848 flow [2022-11-21 09:04:18,807 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=848, PETRI_PLACES=409, PETRI_TRANSITIONS=414} [2022-11-21 09:04:18,809 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -72 predicate places. [2022-11-21 09:04:18,809 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 414 transitions, 848 flow [2022-11-21 09:04:18,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states 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 09:04:18,811 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:18,811 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:04:18,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 09:04:18,812 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:04:18,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:18,812 INFO L85 PathProgramCache]: Analyzing trace with hash 510479388, now seen corresponding path program 1 times [2022-11-21 09:04:18,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:18,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957286837] [2022-11-21 09:04:18,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:18,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:18,891 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 09:04:18,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:18,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957286837] [2022-11-21 09:04:18,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957286837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:18,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:18,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:04:18,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5744784] [2022-11-21 09:04:18,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:18,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:04:18,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:18,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:18,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:18,896 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 585 [2022-11-21 09:04:18,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 414 transitions, 848 flow. Second operand has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states 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 09:04:18,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:18,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 585 [2022-11-21 09:04:18,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:19,320 INFO L130 PetriNetUnfolder]: 414/1427 cut-off events. [2022-11-21 09:04:19,321 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-21 09:04:19,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2076 conditions, 1427 events. 414/1427 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6460 event pairs, 192 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 1986. Up to 559 conditions per place. [2022-11-21 09:04:19,337 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 32 selfloop transitions, 2 changer transitions 0/413 dead transitions. [2022-11-21 09:04:19,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 413 transitions, 914 flow [2022-11-21 09:04:19,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:04:19,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:04:19,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-11-21 09:04:19,342 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8216524216524217 [2022-11-21 09:04:19,342 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-11-21 09:04:19,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-11-21 09:04:19,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:19,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-11-21 09:04:19,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.6666666666667) internal successors, (1442), 3 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:19,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:19,352 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:19,352 INFO L175 Difference]: Start difference. First operand has 409 places, 414 transitions, 848 flow. Second operand 3 states and 1442 transitions. [2022-11-21 09:04:19,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 413 transitions, 914 flow [2022-11-21 09:04:19,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 413 transitions, 910 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:04:19,361 INFO L231 Difference]: Finished difference. Result has 408 places, 413 transitions, 846 flow [2022-11-21 09:04:19,362 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=846, PETRI_PLACES=408, PETRI_TRANSITIONS=413} [2022-11-21 09:04:19,363 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -73 predicate places. [2022-11-21 09:04:19,363 INFO L495 AbstractCegarLoop]: Abstraction has has 408 places, 413 transitions, 846 flow [2022-11-21 09:04:19,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states 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 09:04:19,364 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:19,364 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] [2022-11-21 09:04:19,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 09:04:19,365 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:04:19,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:19,365 INFO L85 PathProgramCache]: Analyzing trace with hash 797986881, now seen corresponding path program 1 times [2022-11-21 09:04:19,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:19,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101001832] [2022-11-21 09:04:19,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:19,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:19,409 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 09:04:19,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:19,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101001832] [2022-11-21 09:04:19,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101001832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:19,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:19,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:04:19,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235910967] [2022-11-21 09:04:19,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:19,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:04:19,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:19,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:19,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:19,414 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 585 [2022-11-21 09:04:19,416 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 413 transitions, 846 flow. Second operand has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states 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 09:04:19,416 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:19,416 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 585 [2022-11-21 09:04:19,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:19,809 INFO L130 PetriNetUnfolder]: 414/1426 cut-off events. [2022-11-21 09:04:19,809 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-21 09:04:19,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2075 conditions, 1426 events. 414/1426 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6481 event pairs, 192 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 1978. Up to 559 conditions per place. [2022-11-21 09:04:19,855 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 32 selfloop transitions, 2 changer transitions 0/412 dead transitions. [2022-11-21 09:04:19,855 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 412 transitions, 912 flow [2022-11-21 09:04:19,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:04:19,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:04:19,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-11-21 09:04:19,861 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8216524216524217 [2022-11-21 09:04:19,861 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-11-21 09:04:19,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-11-21 09:04:19,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:19,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-11-21 09:04:19,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.6666666666667) internal successors, (1442), 3 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:19,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:19,871 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:19,871 INFO L175 Difference]: Start difference. First operand has 408 places, 413 transitions, 846 flow. Second operand 3 states and 1442 transitions. [2022-11-21 09:04:19,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 412 transitions, 912 flow [2022-11-21 09:04:19,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 412 transitions, 908 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:04:19,880 INFO L231 Difference]: Finished difference. Result has 407 places, 412 transitions, 844 flow [2022-11-21 09:04:19,881 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=844, PETRI_PLACES=407, PETRI_TRANSITIONS=412} [2022-11-21 09:04:19,881 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -74 predicate places. [2022-11-21 09:04:19,881 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 412 transitions, 844 flow [2022-11-21 09:04:19,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states 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 09:04:19,882 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:19,883 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] [2022-11-21 09:04:19,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 09:04:19,883 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:04:19,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:19,884 INFO L85 PathProgramCache]: Analyzing trace with hash 604629019, now seen corresponding path program 1 times [2022-11-21 09:04:19,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:19,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244826680] [2022-11-21 09:04:19,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:19,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:19,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:04:19,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:19,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244826680] [2022-11-21 09:04:19,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244826680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:19,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:19,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:04:19,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747254133] [2022-11-21 09:04:19,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:19,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:04:19,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:19,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:19,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:19,940 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 585 [2022-11-21 09:04:19,942 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 412 transitions, 844 flow. Second operand has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states 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 09:04:19,942 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:19,942 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 585 [2022-11-21 09:04:19,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:20,352 INFO L130 PetriNetUnfolder]: 414/1425 cut-off events. [2022-11-21 09:04:20,352 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-21 09:04:20,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2073 conditions, 1425 events. 414/1425 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6478 event pairs, 192 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 1969. Up to 558 conditions per place. [2022-11-21 09:04:20,368 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 31 selfloop transitions, 2 changer transitions 0/411 dead transitions. [2022-11-21 09:04:20,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 411 transitions, 908 flow [2022-11-21 09:04:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:04:20,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:04:20,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1441 transitions. [2022-11-21 09:04:20,373 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8210826210826211 [2022-11-21 09:04:20,373 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1441 transitions. [2022-11-21 09:04:20,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1441 transitions. [2022-11-21 09:04:20,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:20,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1441 transitions. [2022-11-21 09:04:20,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.3333333333333) internal successors, (1441), 3 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states 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 09:04:20,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:20,381 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:20,382 INFO L175 Difference]: Start difference. First operand has 407 places, 412 transitions, 844 flow. Second operand 3 states and 1441 transitions. [2022-11-21 09:04:20,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 411 transitions, 908 flow [2022-11-21 09:04:20,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 411 transitions, 904 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:04:20,390 INFO L231 Difference]: Finished difference. Result has 406 places, 411 transitions, 842 flow [2022-11-21 09:04:20,391 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=842, PETRI_PLACES=406, PETRI_TRANSITIONS=411} [2022-11-21 09:04:20,391 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -75 predicate places. [2022-11-21 09:04:20,391 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 411 transitions, 842 flow [2022-11-21 09:04:20,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states 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 09:04:20,392 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:20,393 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] [2022-11-21 09:04:20,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 09:04:20,393 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:04:20,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:20,393 INFO L85 PathProgramCache]: Analyzing trace with hash 488265826, now seen corresponding path program 1 times [2022-11-21 09:04:20,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:20,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530729218] [2022-11-21 09:04:20,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:20,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:20,437 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 09:04:20,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:20,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530729218] [2022-11-21 09:04:20,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530729218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:20,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:20,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:04:20,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397236111] [2022-11-21 09:04:20,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:20,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:04:20,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:20,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:20,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:20,442 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 585 [2022-11-21 09:04:20,444 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 411 transitions, 842 flow. Second operand has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states 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 09:04:20,444 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:20,444 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 585 [2022-11-21 09:04:20,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:20,952 INFO L130 PetriNetUnfolder]: 561/1867 cut-off events. [2022-11-21 09:04:20,952 INFO L131 PetriNetUnfolder]: For 105/147 co-relation queries the response was YES. [2022-11-21 09:04:20,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2768 conditions, 1867 events. 561/1867 cut-off events. For 105/147 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 9617 event pairs, 285 based on Foata normal form. 0/1579 useless extension candidates. Maximal degree in co-relation 2657. Up to 790 conditions per place. [2022-11-21 09:04:20,976 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 41 selfloop transitions, 2 changer transitions 0/410 dead transitions. [2022-11-21 09:04:20,976 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 410 transitions, 926 flow [2022-11-21 09:04:20,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:04:20,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:04:20,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1406 transitions. [2022-11-21 09:04:20,980 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8011396011396011 [2022-11-21 09:04:20,980 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1406 transitions. [2022-11-21 09:04:20,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1406 transitions. [2022-11-21 09:04:20,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:20,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1406 transitions. [2022-11-21 09:04:20,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 468.6666666666667) internal successors, (1406), 3 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states 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 09:04:20,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:20,989 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:20,989 INFO L175 Difference]: Start difference. First operand has 406 places, 411 transitions, 842 flow. Second operand 3 states and 1406 transitions. [2022-11-21 09:04:20,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 410 transitions, 926 flow [2022-11-21 09:04:20,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 410 transitions, 922 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:04:20,998 INFO L231 Difference]: Finished difference. Result has 405 places, 410 transitions, 840 flow [2022-11-21 09:04:20,999 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=840, PETRI_PLACES=405, PETRI_TRANSITIONS=410} [2022-11-21 09:04:21,000 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -76 predicate places. [2022-11-21 09:04:21,000 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 410 transitions, 840 flow [2022-11-21 09:04:21,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states 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 09:04:21,001 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:21,001 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] [2022-11-21 09:04:21,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 09:04:21,001 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:04:21,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:21,002 INFO L85 PathProgramCache]: Analyzing trace with hash -525105607, now seen corresponding path program 1 times [2022-11-21 09:04:21,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:21,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178227596] [2022-11-21 09:04:21,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:21,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:21,044 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 09:04:21,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:21,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178227596] [2022-11-21 09:04:21,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178227596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:21,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:21,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:04:21,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945224167] [2022-11-21 09:04:21,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:21,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:04:21,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:21,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:21,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:21,048 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 457 out of 585 [2022-11-21 09:04:21,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 410 transitions, 840 flow. Second operand has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states 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 09:04:21,050 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:21,050 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 457 of 585 [2022-11-21 09:04:21,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:21,570 INFO L130 PetriNetUnfolder]: 510/1772 cut-off events. [2022-11-21 09:04:21,570 INFO L131 PetriNetUnfolder]: For 99/138 co-relation queries the response was YES. [2022-11-21 09:04:21,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2581 conditions, 1772 events. 510/1772 cut-off events. For 99/138 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 9012 event pairs, 252 based on Foata normal form. 0/1533 useless extension candidates. Maximal degree in co-relation 2462. Up to 704 conditions per place. [2022-11-21 09:04:21,591 INFO L137 encePairwiseOnDemand]: 580/585 looper letters, 35 selfloop transitions, 1 changer transitions 0/406 dead transitions. [2022-11-21 09:04:21,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 406 transitions, 904 flow [2022-11-21 09:04:21,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:04:21,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:04:21,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1411 transitions. [2022-11-21 09:04:21,596 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.803988603988604 [2022-11-21 09:04:21,596 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1411 transitions. [2022-11-21 09:04:21,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1411 transitions. [2022-11-21 09:04:21,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:21,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1411 transitions. [2022-11-21 09:04:21,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states 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 09:04:21,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:21,607 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:21,608 INFO L175 Difference]: Start difference. First operand has 405 places, 410 transitions, 840 flow. Second operand 3 states and 1411 transitions. [2022-11-21 09:04:21,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 406 transitions, 904 flow [2022-11-21 09:04:21,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 406 transitions, 900 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:04:21,619 INFO L231 Difference]: Finished difference. Result has 401 places, 406 transitions, 830 flow [2022-11-21 09:04:21,620 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=828, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=830, PETRI_PLACES=401, PETRI_TRANSITIONS=406} [2022-11-21 09:04:21,621 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -80 predicate places. [2022-11-21 09:04:21,622 INFO L495 AbstractCegarLoop]: Abstraction has has 401 places, 406 transitions, 830 flow [2022-11-21 09:04:21,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states 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 09:04:21,625 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:21,625 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] [2022-11-21 09:04:21,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 09:04:21,626 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:04:21,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:21,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1445145391, now seen corresponding path program 1 times [2022-11-21 09:04:21,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:21,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774860705] [2022-11-21 09:04:21,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:21,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:21,708 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 09:04:21,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:21,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774860705] [2022-11-21 09:04:21,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774860705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:21,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:21,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:04:21,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022190484] [2022-11-21 09:04:21,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:21,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:04:21,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:21,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:21,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:21,713 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-21 09:04:21,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 406 transitions, 830 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 09:04:21,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:21,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-21 09:04:21,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:22,116 INFO L130 PetriNetUnfolder]: 414/1411 cut-off events. [2022-11-21 09:04:22,116 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-21 09:04:22,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2056 conditions, 1411 events. 414/1411 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6440 event pairs, 192 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 1938. Up to 556 conditions per place. [2022-11-21 09:04:22,134 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 29 selfloop transitions, 2 changer transitions 0/405 dead transitions. [2022-11-21 09:04:22,134 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 405 transitions, 890 flow [2022-11-21 09:04:22,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:04:22,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:04:22,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-21 09:04:22,138 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8250712250712251 [2022-11-21 09:04:22,139 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-21 09:04:22,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-21 09:04:22,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:22,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-21 09:04:22,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 482.6666666666667) internal successors, (1448), 3 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states 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 09:04:22,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:22,148 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:22,148 INFO L175 Difference]: Start difference. First operand has 401 places, 406 transitions, 830 flow. Second operand 3 states and 1448 transitions. [2022-11-21 09:04:22,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 405 transitions, 890 flow [2022-11-21 09:04:22,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 405 transitions, 889 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 09:04:22,157 INFO L231 Difference]: Finished difference. Result has 401 places, 405 transitions, 831 flow [2022-11-21 09:04:22,157 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=827, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=831, PETRI_PLACES=401, PETRI_TRANSITIONS=405} [2022-11-21 09:04:22,158 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -80 predicate places. [2022-11-21 09:04:22,158 INFO L495 AbstractCegarLoop]: Abstraction has has 401 places, 405 transitions, 831 flow [2022-11-21 09:04:22,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 09:04:22,159 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:22,160 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] [2022-11-21 09:04:22,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 09:04:22,160 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:04:22,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:22,161 INFO L85 PathProgramCache]: Analyzing trace with hash -335410741, now seen corresponding path program 1 times [2022-11-21 09:04:22,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:22,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303655989] [2022-11-21 09:04:22,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:22,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:22,873 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 09:04:22,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:22,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303655989] [2022-11-21 09:04:22,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303655989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:22,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:22,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:04:22,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128753095] [2022-11-21 09:04:22,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:22,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 09:04:22,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:22,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 09:04:22,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 09:04:22,878 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 413 out of 585 [2022-11-21 09:04:22,880 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 405 transitions, 831 flow. Second operand has 6 states, 6 states have (on average 414.8333333333333) internal successors, (2489), 6 states have internal predecessors, (2489), 0 states have call successors, (0), 0 states 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 09:04:22,881 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:22,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 413 of 585 [2022-11-21 09:04:22,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:49,396 INFO L130 PetriNetUnfolder]: 76386/104983 cut-off events. [2022-11-21 09:04:49,397 INFO L131 PetriNetUnfolder]: For 851/856 co-relation queries the response was YES. [2022-11-21 09:04:49,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199271 conditions, 104983 events. 76386/104983 cut-off events. For 851/856 co-relation queries the response was YES. Maximal size of possible extension queue 2054. Compared 671084 event pairs, 50406 based on Foata normal form. 0/95214 useless extension candidates. Maximal degree in co-relation 199154. Up to 92232 conditions per place. [2022-11-21 09:04:50,821 INFO L137 encePairwiseOnDemand]: 579/585 looper letters, 73 selfloop transitions, 5 changer transitions 0/404 dead transitions. [2022-11-21 09:04:50,822 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 404 transitions, 985 flow [2022-11-21 09:04:50,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 09:04:50,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 09:04:50,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2557 transitions. [2022-11-21 09:04:50,831 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7284900284900285 [2022-11-21 09:04:50,831 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2557 transitions. [2022-11-21 09:04:50,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2557 transitions. [2022-11-21 09:04:50,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:50,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2557 transitions. [2022-11-21 09:04:50,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 426.1666666666667) internal successors, (2557), 6 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states 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 09:04:50,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 585.0) internal successors, (4095), 7 states have internal predecessors, (4095), 0 states have call successors, (0), 0 states 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 09:04:50,854 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 585.0) internal successors, (4095), 7 states have internal predecessors, (4095), 0 states have call successors, (0), 0 states 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 09:04:50,854 INFO L175 Difference]: Start difference. First operand has 401 places, 405 transitions, 831 flow. Second operand 6 states and 2557 transitions. [2022-11-21 09:04:50,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 404 transitions, 985 flow [2022-11-21 09:04:50,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 404 transitions, 981 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:04:50,866 INFO L231 Difference]: Finished difference. Result has 403 places, 404 transitions, 835 flow [2022-11-21 09:04:50,867 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=825, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=835, PETRI_PLACES=403, PETRI_TRANSITIONS=404} [2022-11-21 09:04:50,868 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -78 predicate places. [2022-11-21 09:04:50,868 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 404 transitions, 835 flow [2022-11-21 09:04:50,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 414.8333333333333) internal successors, (2489), 6 states have internal predecessors, (2489), 0 states have call successors, (0), 0 states 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 09:04:50,870 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:50,870 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] [2022-11-21 09:04:50,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 09:04:50,871 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:04:50,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:50,872 INFO L85 PathProgramCache]: Analyzing trace with hash -269890375, now seen corresponding path program 1 times [2022-11-21 09:04:50,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:50,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583702698] [2022-11-21 09:04:50,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:50,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:50,953 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 09:04:50,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:50,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583702698] [2022-11-21 09:04:50,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583702698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:50,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:50,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:04:50,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353650246] [2022-11-21 09:04:50,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:50,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:04:50,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:50,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:50,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:50,963 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 457 out of 585 [2022-11-21 09:04:50,965 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 404 transitions, 835 flow. Second operand has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states 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 09:04:50,965 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:50,966 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 457 of 585 [2022-11-21 09:04:50,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:51,952 INFO L130 PetriNetUnfolder]: 765/2532 cut-off events. [2022-11-21 09:04:51,952 INFO L131 PetriNetUnfolder]: For 147/197 co-relation queries the response was YES. [2022-11-21 09:04:51,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3710 conditions, 2532 events. 765/2532 cut-off events. For 147/197 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 15732 event pairs, 236 based on Foata normal form. 0/2169 useless extension candidates. Maximal degree in co-relation 3692. Up to 540 conditions per place. [2022-11-21 09:04:52,001 INFO L137 encePairwiseOnDemand]: 576/585 looper letters, 59 selfloop transitions, 3 changer transitions 0/420 dead transitions. [2022-11-21 09:04:52,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 420 transitions, 1003 flow [2022-11-21 09:04:52,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:04:52,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:04:52,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1439 transitions. [2022-11-21 09:04:52,008 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.81994301994302 [2022-11-21 09:04:52,008 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1439 transitions. [2022-11-21 09:04:52,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1439 transitions. [2022-11-21 09:04:52,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:52,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1439 transitions. [2022-11-21 09:04:52,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 479.6666666666667) internal successors, (1439), 3 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states 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 09:04:52,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:52,021 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:52,022 INFO L175 Difference]: Start difference. First operand has 403 places, 404 transitions, 835 flow. Second operand 3 states and 1439 transitions. [2022-11-21 09:04:52,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 420 transitions, 1003 flow [2022-11-21 09:04:52,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 420 transitions, 993 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 09:04:52,038 INFO L231 Difference]: Finished difference. Result has 396 places, 400 transitions, 833 flow [2022-11-21 09:04:52,039 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=833, PETRI_PLACES=396, PETRI_TRANSITIONS=400} [2022-11-21 09:04:52,039 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -85 predicate places. [2022-11-21 09:04:52,040 INFO L495 AbstractCegarLoop]: Abstraction has has 396 places, 400 transitions, 833 flow [2022-11-21 09:04:52,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states 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 09:04:52,043 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:52,044 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] [2022-11-21 09:04:52,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 09:04:52,044 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:04:52,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:52,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1666555363, now seen corresponding path program 1 times [2022-11-21 09:04:52,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:52,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121517417] [2022-11-21 09:04:52,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:52,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:52,127 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 09:04:52,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:52,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121517417] [2022-11-21 09:04:52,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121517417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:52,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:52,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:04:52,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808021759] [2022-11-21 09:04:52,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:52,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:04:52,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:52,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:52,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:52,134 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-21 09:04:52,136 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 400 transitions, 833 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 09:04:52,137 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:52,137 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-21 09:04:52,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:53,701 INFO L130 PetriNetUnfolder]: 1327/3831 cut-off events. [2022-11-21 09:04:53,701 INFO L131 PetriNetUnfolder]: For 517/724 co-relation queries the response was YES. [2022-11-21 09:04:53,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6035 conditions, 3831 events. 1327/3831 cut-off events. For 517/724 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 26989 event pairs, 402 based on Foata normal form. 0/3231 useless extension candidates. Maximal degree in co-relation 5915. Up to 965 conditions per place. [2022-11-21 09:04:53,731 INFO L137 encePairwiseOnDemand]: 581/585 looper letters, 51 selfloop transitions, 4 changer transitions 0/422 dead transitions. [2022-11-21 09:04:53,732 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 422 transitions, 1010 flow [2022-11-21 09:04:53,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:04:53,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:04:53,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1468 transitions. [2022-11-21 09:04:53,737 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8364672364672364 [2022-11-21 09:04:53,738 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1468 transitions. [2022-11-21 09:04:53,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1468 transitions. [2022-11-21 09:04:53,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:53,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1468 transitions. [2022-11-21 09:04:53,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 489.3333333333333) internal successors, (1468), 3 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states 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 09:04:53,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:53,749 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:53,750 INFO L175 Difference]: Start difference. First operand has 396 places, 400 transitions, 833 flow. Second operand 3 states and 1468 transitions. [2022-11-21 09:04:53,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 422 transitions, 1010 flow [2022-11-21 09:04:53,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 422 transitions, 1000 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:04:53,760 INFO L231 Difference]: Finished difference. Result has 397 places, 402 transitions, 857 flow [2022-11-21 09:04:53,761 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=825, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=857, PETRI_PLACES=397, PETRI_TRANSITIONS=402} [2022-11-21 09:04:53,762 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -84 predicate places. [2022-11-21 09:04:53,762 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 402 transitions, 857 flow [2022-11-21 09:04:53,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 09:04:53,763 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:53,763 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] [2022-11-21 09:04:53,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 09:04:53,764 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:04:53,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:53,764 INFO L85 PathProgramCache]: Analyzing trace with hash -813074309, now seen corresponding path program 1 times [2022-11-21 09:04:53,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:53,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109401717] [2022-11-21 09:04:53,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:53,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:53,828 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 09:04:53,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:53,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109401717] [2022-11-21 09:04:53,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109401717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:53,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:53,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:04:53,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468358875] [2022-11-21 09:04:53,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:53,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:04:53,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:53,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:53,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:53,833 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 475 out of 585 [2022-11-21 09:04:53,835 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 402 transitions, 857 flow. Second operand has 3 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:53,835 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:53,836 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 475 of 585 [2022-11-21 09:04:53,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:55,621 INFO L130 PetriNetUnfolder]: 2608/6986 cut-off events. [2022-11-21 09:04:55,621 INFO L131 PetriNetUnfolder]: For 1417/1839 co-relation queries the response was YES. [2022-11-21 09:04:55,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11669 conditions, 6986 events. 2608/6986 cut-off events. For 1417/1839 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 56991 event pairs, 1284 based on Foata normal form. 0/5831 useless extension candidates. Maximal degree in co-relation 11550. Up to 1733 conditions per place. [2022-11-21 09:04:55,688 INFO L137 encePairwiseOnDemand]: 581/585 looper letters, 60 selfloop transitions, 3 changer transitions 0/431 dead transitions. [2022-11-21 09:04:55,688 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 431 transitions, 1086 flow [2022-11-21 09:04:55,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:04:55,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:04:55,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1479 transitions. [2022-11-21 09:04:55,694 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8427350427350427 [2022-11-21 09:04:55,694 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1479 transitions. [2022-11-21 09:04:55,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1479 transitions. [2022-11-21 09:04:55,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:55,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1479 transitions. [2022-11-21 09:04:55,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 493.0) internal successors, (1479), 3 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states 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 09:04:55,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:55,707 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:55,707 INFO L175 Difference]: Start difference. First operand has 397 places, 402 transitions, 857 flow. Second operand 3 states and 1479 transitions. [2022-11-21 09:04:55,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 431 transitions, 1086 flow [2022-11-21 09:04:55,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 431 transitions, 1072 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:04:55,719 INFO L231 Difference]: Finished difference. Result has 398 places, 403 transitions, 867 flow [2022-11-21 09:04:55,720 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=867, PETRI_PLACES=398, PETRI_TRANSITIONS=403} [2022-11-21 09:04:55,720 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -83 predicate places. [2022-11-21 09:04:55,720 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 403 transitions, 867 flow [2022-11-21 09:04:55,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:55,722 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:55,722 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:55,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 09:04:55,722 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:04:55,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:55,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1429601796, now seen corresponding path program 1 times [2022-11-21 09:04:55,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:55,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478838678] [2022-11-21 09:04:55,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:55,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:55,782 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 09:04:55,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:55,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478838678] [2022-11-21 09:04:55,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478838678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:55,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:55,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:04:55,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671819730] [2022-11-21 09:04:55,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:55,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:04:55,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:55,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:55,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:55,787 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-21 09:04:55,789 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 403 transitions, 867 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 09:04:55,790 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:55,790 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-21 09:04:55,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:59,162 INFO L130 PetriNetUnfolder]: 5168/13478 cut-off events. [2022-11-21 09:04:59,162 INFO L131 PetriNetUnfolder]: For 2903/3747 co-relation queries the response was YES. [2022-11-21 09:04:59,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23197 conditions, 13478 events. 5168/13478 cut-off events. For 2903/3747 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 126719 event pairs, 2568 based on Foata normal form. 0/11189 useless extension candidates. Maximal degree in co-relation 23075. Up to 3467 conditions per place. [2022-11-21 09:04:59,332 INFO L137 encePairwiseOnDemand]: 581/585 looper letters, 65 selfloop transitions, 4 changer transitions 0/434 dead transitions. [2022-11-21 09:04:59,332 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 434 transitions, 1118 flow [2022-11-21 09:04:59,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:04:59,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:04:59,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1472 transitions. [2022-11-21 09:04:59,338 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8387464387464387 [2022-11-21 09:04:59,338 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1472 transitions. [2022-11-21 09:04:59,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1472 transitions. [2022-11-21 09:04:59,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:59,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1472 transitions. [2022-11-21 09:04:59,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 490.6666666666667) internal successors, (1472), 3 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states 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 09:04:59,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:59,350 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:59,350 INFO L175 Difference]: Start difference. First operand has 398 places, 403 transitions, 867 flow. Second operand 3 states and 1472 transitions. [2022-11-21 09:04:59,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 434 transitions, 1118 flow [2022-11-21 09:04:59,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 434 transitions, 1108 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:04:59,362 INFO L231 Difference]: Finished difference. Result has 399 places, 405 transitions, 891 flow [2022-11-21 09:04:59,363 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=859, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=891, PETRI_PLACES=399, PETRI_TRANSITIONS=405} [2022-11-21 09:04:59,364 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -82 predicate places. [2022-11-21 09:04:59,364 INFO L495 AbstractCegarLoop]: Abstraction has has 399 places, 405 transitions, 891 flow [2022-11-21 09:04:59,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 09:04:59,365 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:59,365 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] [2022-11-21 09:04:59,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 09:04:59,366 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:04:59,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:59,366 INFO L85 PathProgramCache]: Analyzing trace with hash -856750582, now seen corresponding path program 1 times [2022-11-21 09:04:59,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:59,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113214463] [2022-11-21 09:04:59,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:59,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:59,426 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 09:04:59,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:59,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113214463] [2022-11-21 09:04:59,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113214463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:59,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:59,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:04:59,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857559627] [2022-11-21 09:04:59,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:59,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:04:59,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:59,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:59,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:59,431 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 585 [2022-11-21 09:04:59,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 405 transitions, 891 flow. Second operand has 3 states, 3 states have (on average 467.3333333333333) internal successors, (1402), 3 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states 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 09:04:59,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:59,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 585 [2022-11-21 09:04:59,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:05:04,049 INFO L130 PetriNetUnfolder]: 6642/17472 cut-off events. [2022-11-21 09:05:04,049 INFO L131 PetriNetUnfolder]: For 4558/5452 co-relation queries the response was YES. [2022-11-21 09:05:04,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30636 conditions, 17472 events. 6642/17472 cut-off events. For 4558/5452 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 171480 event pairs, 853 based on Foata normal form. 33/14904 useless extension candidates. Maximal degree in co-relation 30513. Up to 8056 conditions per place. [2022-11-21 09:05:04,254 INFO L137 encePairwiseOnDemand]: 579/585 looper letters, 65 selfloop transitions, 4 changer transitions 0/430 dead transitions. [2022-11-21 09:05:04,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 430 transitions, 1123 flow [2022-11-21 09:05:04,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:05:04,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:05:04,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1454 transitions. [2022-11-21 09:05:04,260 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8284900284900285 [2022-11-21 09:05:04,260 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1454 transitions. [2022-11-21 09:05:04,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1454 transitions. [2022-11-21 09:05:04,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:05:04,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1454 transitions. [2022-11-21 09:05:04,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 484.6666666666667) internal successors, (1454), 3 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:05:04,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:05:04,272 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:05:04,272 INFO L175 Difference]: Start difference. First operand has 399 places, 405 transitions, 891 flow. Second operand 3 states and 1454 transitions. [2022-11-21 09:05:04,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 430 transitions, 1123 flow [2022-11-21 09:05:04,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 430 transitions, 1109 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:05:04,284 INFO L231 Difference]: Finished difference. Result has 398 places, 406 transitions, 903 flow [2022-11-21 09:05:04,285 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=879, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=903, PETRI_PLACES=398, PETRI_TRANSITIONS=406} [2022-11-21 09:05:04,286 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -83 predicate places. [2022-11-21 09:05:04,286 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 406 transitions, 903 flow [2022-11-21 09:05:04,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 467.3333333333333) internal successors, (1402), 3 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states 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 09:05:04,287 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:05:04,287 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] [2022-11-21 09:05:04,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-21 09:05:04,288 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:05:04,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:05:04,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1549076719, now seen corresponding path program 1 times [2022-11-21 09:05:04,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:05:04,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377392253] [2022-11-21 09:05:04,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:05:04,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:05:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:05:04,355 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 09:05:04,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:05:04,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377392253] [2022-11-21 09:05:04,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377392253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:05:04,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:05:04,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:05:04,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129367249] [2022-11-21 09:05:04,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:05:04,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:05:04,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:05:04,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:05:04,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:05:04,360 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 585 [2022-11-21 09:05:04,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 406 transitions, 903 flow. Second operand has 3 states, 3 states have (on average 467.3333333333333) internal successors, (1402), 3 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states 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 09:05:04,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:05:04,363 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 585 [2022-11-21 09:05:04,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:05:10,597 INFO L130 PetriNetUnfolder]: 9678/25360 cut-off events. [2022-11-21 09:05:10,597 INFO L131 PetriNetUnfolder]: For 6505/7671 co-relation queries the response was YES. [2022-11-21 09:05:10,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45885 conditions, 25360 events. 9678/25360 cut-off events. For 6505/7671 co-relation queries the response was YES. Maximal size of possible extension queue 715. Compared 264533 event pairs, 1649 based on Foata normal form. 8/21371 useless extension candidates. Maximal degree in co-relation 45762. Up to 9481 conditions per place. [2022-11-21 09:05:10,931 INFO L137 encePairwiseOnDemand]: 579/585 looper letters, 70 selfloop transitions, 4 changer transitions 0/434 dead transitions. [2022-11-21 09:05:10,931 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 434 transitions, 1156 flow [2022-11-21 09:05:10,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:05:10,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:05:10,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1455 transitions. [2022-11-21 09:05:10,936 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8290598290598291 [2022-11-21 09:05:10,936 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1455 transitions. [2022-11-21 09:05:10,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1455 transitions. [2022-11-21 09:05:10,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:05:10,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1455 transitions. [2022-11-21 09:05:10,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:05:10,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:05:10,946 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:05:10,947 INFO L175 Difference]: Start difference. First operand has 398 places, 406 transitions, 903 flow. Second operand 3 states and 1455 transitions. [2022-11-21 09:05:10,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 434 transitions, 1156 flow [2022-11-21 09:05:10,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 434 transitions, 1156 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 09:05:10,960 INFO L231 Difference]: Finished difference. Result has 399 places, 407 transitions, 923 flow [2022-11-21 09:05:10,961 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=899, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=923, PETRI_PLACES=399, PETRI_TRANSITIONS=407} [2022-11-21 09:05:10,962 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -82 predicate places. [2022-11-21 09:05:10,962 INFO L495 AbstractCegarLoop]: Abstraction has has 399 places, 407 transitions, 923 flow [2022-11-21 09:05:10,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 467.3333333333333) internal successors, (1402), 3 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states 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 09:05:10,963 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:05:10,963 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:05:10,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-21 09:05:10,964 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-21 09:05:10,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:05:10,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1483125898, now seen corresponding path program 1 times [2022-11-21 09:05:10,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:05:10,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290640256] [2022-11-21 09:05:10,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:05:10,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:05:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat