./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc --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 573c853979782f78b60122afde2824ab47c3f9d6394b4ee74285d458320f7321 --- 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-5e519f3 [2022-11-02 20:11:50,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:11:50,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:11:50,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:11:50,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:11:50,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:11:50,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:11:50,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:11:50,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:11:50,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:11:50,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:11:50,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:11:50,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:11:50,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:11:50,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:11:50,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:11:50,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:11:50,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:11:50,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:11:50,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:11:50,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:11:50,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:11:50,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:11:50,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:11:50,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:11:50,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:11:50,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:11:50,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:11:50,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:11:50,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:11:50,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:11:50,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:11:50,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:11:50,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:11:50,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:11:50,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:11:50,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:11:50,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:11:50,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:11:50,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:11:50,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:11:50,839 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:11:50,891 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:11:50,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:11:50,892 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:11:50,892 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:11:50,893 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:11:50,893 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:11:50,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:11:50,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:11:50,894 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:11:50,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:11:50,896 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:11:50,896 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:11:50,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:11:50,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:11:50,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:11:50,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:11:50,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:11:50,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:11:50,898 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:11:50,898 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:11:50,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:11:50,898 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:11:50,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:11:50,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:11:50,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:11:50,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:11:50,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:11:50,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:11:50,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:11:50,900 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:11:50,900 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:11:50,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:11:50,901 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:11:50,901 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:11:50,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:11:50,902 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_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 573c853979782f78b60122afde2824ab47c3f9d6394b4ee74285d458320f7321 [2022-11-02 20:11:51,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:11:51,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:11:51,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:11:51,212 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:11:51,213 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:11:51,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2022-11-02 20:11:51,283 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/data/74707a3e2/08e8628b3e9746a3b57ef9b25630d493/FLAGeff53771a [2022-11-02 20:11:51,854 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:11:51,855 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2022-11-02 20:11:51,891 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/data/74707a3e2/08e8628b3e9746a3b57ef9b25630d493/FLAGeff53771a [2022-11-02 20:11:52,303 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/data/74707a3e2/08e8628b3e9746a3b57ef9b25630d493 [2022-11-02 20:11:52,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:11:52,308 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:11:52,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:11:52,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:11:52,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:11:52,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:11:52" (1/1) ... [2022-11-02 20:11:52,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ce4038f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:52, skipping insertion in model container [2022-11-02 20:11:52,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:11:52" (1/1) ... [2022-11-02 20:11:52,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:11:52,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:11:53,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:11:53,060 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:11:53,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:11:53,212 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:11:53,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:53 WrapperNode [2022-11-02 20:11:53,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:11:53,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:11:53,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:11:53,215 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:11:53,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:53" (1/1) ... [2022-11-02 20:11:53,285 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:53" (1/1) ... [2022-11-02 20:11:53,353 INFO L138 Inliner]: procedures = 371, calls = 46, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 423 [2022-11-02 20:11:53,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:11:53,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:11:53,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:11:53,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:11:53,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:53" (1/1) ... [2022-11-02 20:11:53,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:53" (1/1) ... [2022-11-02 20:11:53,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:53" (1/1) ... [2022-11-02 20:11:53,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:53" (1/1) ... [2022-11-02 20:11:53,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:53" (1/1) ... [2022-11-02 20:11:53,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:53" (1/1) ... [2022-11-02 20:11:53,462 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:53" (1/1) ... [2022-11-02 20:11:53,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:53" (1/1) ... [2022-11-02 20:11:53,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:11:53,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:11:53,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:11:53,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:11:53,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:53" (1/1) ... [2022-11-02 20:11:53,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:11:53,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:11:53,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:11:53,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:11:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:11:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:11:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:11:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:11:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:11:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:11:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:11:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:11:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:11:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 20:11:53,576 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 20:11:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:11:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:11:53,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:11:53,578 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:11:53,818 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:11:53,820 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:11:54,704 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:11:54,718 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:11:54,722 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:11:54,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:11:54 BoogieIcfgContainer [2022-11-02 20:11:54,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:11:54,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:11:54,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:11:54,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:11:54,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:11:52" (1/3) ... [2022-11-02 20:11:54,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0681a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:11:54, skipping insertion in model container [2022-11-02 20:11:54,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:53" (2/3) ... [2022-11-02 20:11:54,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0681a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:11:54, skipping insertion in model container [2022-11-02 20:11:54,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:11:54" (3/3) ... [2022-11-02 20:11:54,737 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_12-arraycollapse_rc.i [2022-11-02 20:11:54,746 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:11:54,756 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:11:54,757 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2022-11-02 20:11:54,757 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:11:54,897 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:11:54,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 513 places, 514 transitions, 1033 flow [2022-11-02 20:11:55,136 INFO L130 PetriNetUnfolder]: 5/513 cut-off events. [2022-11-02 20:11:55,136 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:11:55,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 517 conditions, 513 events. 5/513 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 130 event pairs, 0 based on Foata normal form. 0/471 useless extension candidates. Maximal degree in co-relation 387. Up to 2 conditions per place. [2022-11-02 20:11:55,153 INFO L82 GeneralOperation]: Start removeDead. Operand has 513 places, 514 transitions, 1033 flow [2022-11-02 20:11:55,169 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 512 places, 513 transitions, 1029 flow [2022-11-02 20:11:55,179 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:11:55,186 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;@58561ff0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:11:55,186 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2022-11-02 20:11:55,199 INFO L130 PetriNetUnfolder]: 4/65 cut-off events. [2022-11-02 20:11:55,199 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:11:55,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:55,200 INFO L208 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] [2022-11-02 20:11:55,201 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:11:55,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:55,206 INFO L85 PathProgramCache]: Analyzing trace with hash -759658408, now seen corresponding path program 1 times [2022-11-02 20:11:55,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:55,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582788965] [2022-11-02 20:11:55,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:55,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:55,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:55,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:55,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582788965] [2022-11-02 20:11:55,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582788965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:55,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:55,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:11:55,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632841567] [2022-11-02 20:11:55,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:55,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:55,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:55,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:55,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:55,661 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 502 out of 514 [2022-11-02 20:11:55,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 513 transitions, 1029 flow. Second operand has 3 states, 3 states have (on average 503.0) internal successors, (1509), 3 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:55,668 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:55,668 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 502 of 514 [2022-11-02 20:11:55,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:55,815 INFO L130 PetriNetUnfolder]: 1/513 cut-off events. [2022-11-02 20:11:55,816 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:11:55,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 513 events. 1/513 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 149 event pairs, 0 based on Foata normal form. 3/475 useless extension candidates. Maximal degree in co-relation 399. Up to 9 conditions per place. [2022-11-02 20:11:55,819 INFO L137 encePairwiseOnDemand]: 507/514 looper letters, 10 selfloop transitions, 2 changer transitions 2/513 dead transitions. [2022-11-02 20:11:55,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 513 transitions, 1053 flow [2022-11-02 20:11:55,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:55,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:55,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1524 transitions. [2022-11-02 20:11:55,841 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9883268482490273 [2022-11-02 20:11:55,842 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1524 transitions. [2022-11-02 20:11:55,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1524 transitions. [2022-11-02 20:11:55,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:55,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1524 transitions. [2022-11-02 20:11:55,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 508.0) internal successors, (1524), 3 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:55,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 514.0) internal successors, (2056), 4 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:55,872 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 514.0) internal successors, (2056), 4 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:55,874 INFO L175 Difference]: Start difference. First operand has 512 places, 513 transitions, 1029 flow. Second operand 3 states and 1524 transitions. [2022-11-02 20:11:55,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 513 transitions, 1053 flow [2022-11-02 20:11:55,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 513 transitions, 1052 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:11:55,920 INFO L231 Difference]: Finished difference. Result has 514 places, 508 transitions, 1028 flow [2022-11-02 20:11:55,923 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1020, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=507, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1028, PETRI_PLACES=514, PETRI_TRANSITIONS=508} [2022-11-02 20:11:55,927 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 2 predicate places. [2022-11-02 20:11:55,927 INFO L495 AbstractCegarLoop]: Abstraction has has 514 places, 508 transitions, 1028 flow [2022-11-02 20:11:55,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 503.0) internal successors, (1509), 3 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:55,929 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:55,929 INFO L208 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] [2022-11-02 20:11:55,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:11:55,930 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:11:55,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:55,932 INFO L85 PathProgramCache]: Analyzing trace with hash 470193548, now seen corresponding path program 1 times [2022-11-02 20:11:55,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:55,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904163024] [2022-11-02 20:11:55,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:55,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:56,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:56,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:56,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904163024] [2022-11-02 20:11:56,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904163024] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:11:56,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882438628] [2022-11-02 20:11:56,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:56,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:11:56,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:11:56,159 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:11:56,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:11:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:56,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:11:56,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:11:56,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:56,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:11:56,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:56,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882438628] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:11:56,444 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:11:56,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-02 20:11:56,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290481069] [2022-11-02 20:11:56,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:11:56,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:11:56,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:56,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:11:56,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:11:56,458 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 514 [2022-11-02 20:11:56,465 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 508 transitions, 1028 flow. Second operand has 10 states, 10 states have (on average 503.0) internal successors, (5030), 10 states have internal predecessors, (5030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:56,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:56,465 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 514 [2022-11-02 20:11:56,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:56,724 INFO L130 PetriNetUnfolder]: 1/518 cut-off events. [2022-11-02 20:11:56,724 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:11:56,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 550 conditions, 518 events. 1/518 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 133 event pairs, 0 based on Foata normal form. 2/482 useless extension candidates. Maximal degree in co-relation 513. Up to 6 conditions per place. [2022-11-02 20:11:56,726 INFO L137 encePairwiseOnDemand]: 508/514 looper letters, 11 selfloop transitions, 9 changer transitions 0/518 dead transitions. [2022-11-02 20:11:56,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 518 transitions, 1090 flow [2022-11-02 20:11:56,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:11:56,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 20:11:56,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4531 transitions. [2022-11-02 20:11:56,735 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9794638996973627 [2022-11-02 20:11:56,735 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 4531 transitions. [2022-11-02 20:11:56,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 4531 transitions. [2022-11-02 20:11:56,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:56,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 4531 transitions. [2022-11-02 20:11:56,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 503.44444444444446) internal successors, (4531), 9 states have internal predecessors, (4531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:56,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 514.0) internal successors, (5140), 10 states have internal predecessors, (5140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:56,762 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 514.0) internal successors, (5140), 10 states have internal predecessors, (5140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:56,762 INFO L175 Difference]: Start difference. First operand has 514 places, 508 transitions, 1028 flow. Second operand 9 states and 4531 transitions. [2022-11-02 20:11:56,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 518 transitions, 1090 flow [2022-11-02 20:11:56,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 519 places, 518 transitions, 1088 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:11:56,774 INFO L231 Difference]: Finished difference. Result has 522 places, 514 transitions, 1076 flow [2022-11-02 20:11:56,775 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1026, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=508, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=502, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1076, PETRI_PLACES=522, PETRI_TRANSITIONS=514} [2022-11-02 20:11:56,776 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 10 predicate places. [2022-11-02 20:11:56,776 INFO L495 AbstractCegarLoop]: Abstraction has has 522 places, 514 transitions, 1076 flow [2022-11-02 20:11:56,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 503.0) internal successors, (5030), 10 states have internal predecessors, (5030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:56,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:56,781 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:56,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:11:57,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:11:57,003 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:11:57,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:57,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1451934988, now seen corresponding path program 2 times [2022-11-02 20:11:57,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:57,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014984214] [2022-11-02 20:11:57,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:57,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:57,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:57,318 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:57,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:57,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014984214] [2022-11-02 20:11:57,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014984214] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:11:57,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688008127] [2022-11-02 20:11:57,320 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:11:57,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:11:57,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:11:57,321 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:11:57,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:11:57,479 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 20:11:57,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:11:57,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 20:11:57,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:11:57,545 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 20:11:57,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:11:57,574 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-02 20:11:57,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:11:57,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:11:57,632 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:11:57,633 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-02 20:11:57,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:11:57,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:11:57,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:11:57,698 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:11:57,699 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-11-02 20:11:57,739 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-02 20:11:57,739 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:11:57,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688008127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:57,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:11:57,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2022-11-02 20:11:57,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925816230] [2022-11-02 20:11:57,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:57,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:11:57,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:57,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:11:57,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-02 20:11:57,746 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 514 [2022-11-02 20:11:57,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 514 transitions, 1076 flow. Second operand has 8 states, 8 states have (on average 243.375) internal successors, (1947), 8 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:57,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:57,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 514 [2022-11-02 20:11:57,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:59,395 INFO L130 PetriNetUnfolder]: 649/2351 cut-off events. [2022-11-02 20:11:59,396 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-02 20:11:59,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3943 conditions, 2351 events. 649/2351 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11580 event pairs, 648 based on Foata normal form. 0/2085 useless extension candidates. Maximal degree in co-relation 3879. Up to 1519 conditions per place. [2022-11-02 20:11:59,409 INFO L137 encePairwiseOnDemand]: 465/514 looper letters, 219 selfloop transitions, 44 changer transitions 0/509 dead transitions. [2022-11-02 20:11:59,409 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 509 transitions, 1592 flow [2022-11-02 20:11:59,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:11:59,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 20:11:59,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2446 transitions. [2022-11-02 20:11:59,416 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5287505404236922 [2022-11-02 20:11:59,416 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2446 transitions. [2022-11-02 20:11:59,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2446 transitions. [2022-11-02 20:11:59,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:59,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2446 transitions. [2022-11-02 20:11:59,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 271.77777777777777) internal successors, (2446), 9 states have internal predecessors, (2446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:59,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 514.0) internal successors, (5140), 10 states have internal predecessors, (5140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:59,435 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 514.0) internal successors, (5140), 10 states have internal predecessors, (5140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:59,435 INFO L175 Difference]: Start difference. First operand has 522 places, 514 transitions, 1076 flow. Second operand 9 states and 2446 transitions. [2022-11-02 20:11:59,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 509 transitions, 1592 flow [2022-11-02 20:11:59,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 509 transitions, 1586 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-02 20:11:59,448 INFO L231 Difference]: Finished difference. Result has 524 places, 509 transitions, 1148 flow [2022-11-02 20:11:59,449 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1060, PETRI_DIFFERENCE_MINUEND_PLACES=516, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1148, PETRI_PLACES=524, PETRI_TRANSITIONS=509} [2022-11-02 20:11:59,450 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 12 predicate places. [2022-11-02 20:11:59,450 INFO L495 AbstractCegarLoop]: Abstraction has has 524 places, 509 transitions, 1148 flow [2022-11-02 20:11:59,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 243.375) internal successors, (1947), 8 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:59,451 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:59,452 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:59,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:11:59,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:11:59,675 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:11:59,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:59,676 INFO L85 PathProgramCache]: Analyzing trace with hash 785550879, now seen corresponding path program 1 times [2022-11-02 20:11:59,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:59,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803323719] [2022-11-02 20:11:59,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:59,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:59,917 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:59,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:59,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803323719] [2022-11-02 20:11:59,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803323719] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:11:59,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795438258] [2022-11-02 20:11:59,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:59,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:11:59,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:11:59,923 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:11:59,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:12:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:00,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:12:00,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:12:00,124 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:00,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:12:00,258 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:00,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795438258] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:12:00,259 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:12:00,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-02 20:12:00,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512892812] [2022-11-02 20:12:00,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:12:00,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:12:00,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:00,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:12:00,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:12:00,273 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 514 [2022-11-02 20:12:00,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 509 transitions, 1148 flow. Second operand has 18 states, 18 states have (on average 503.22222222222223) internal successors, (9058), 18 states have internal predecessors, (9058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:00,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:00,286 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 514 [2022-11-02 20:12:00,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:00,629 INFO L130 PetriNetUnfolder]: 1/533 cut-off events. [2022-11-02 20:12:00,629 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-02 20:12:00,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 672 conditions, 533 events. 1/533 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 130 event pairs, 0 based on Foata normal form. 4/504 useless extension candidates. Maximal degree in co-relation 167. Up to 11 conditions per place. [2022-11-02 20:12:00,631 INFO L137 encePairwiseOnDemand]: 508/514 looper letters, 19 selfloop transitions, 21 changer transitions 0/533 dead transitions. [2022-11-02 20:12:00,631 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 533 transitions, 1328 flow [2022-11-02 20:12:00,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-02 20:12:00,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-02 20:12:00,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 10565 transitions. [2022-11-02 20:12:00,650 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9787845099129145 [2022-11-02 20:12:00,651 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 10565 transitions. [2022-11-02 20:12:00,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 10565 transitions. [2022-11-02 20:12:00,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:00,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 10565 transitions. [2022-11-02 20:12:00,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 503.0952380952381) internal successors, (10565), 21 states have internal predecessors, (10565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:00,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 514.0) internal successors, (11308), 22 states have internal predecessors, (11308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:00,722 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 514.0) internal successors, (11308), 22 states have internal predecessors, (11308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:00,722 INFO L175 Difference]: Start difference. First operand has 524 places, 509 transitions, 1148 flow. Second operand 21 states and 10565 transitions. [2022-11-02 20:12:00,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 533 transitions, 1328 flow [2022-11-02 20:12:00,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 536 places, 533 transitions, 1240 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-02 20:12:00,736 INFO L231 Difference]: Finished difference. Result has 541 places, 522 transitions, 1190 flow [2022-11-02 20:12:00,737 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1060, PETRI_DIFFERENCE_MINUEND_PLACES=516, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=498, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1190, PETRI_PLACES=541, PETRI_TRANSITIONS=522} [2022-11-02 20:12:00,738 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 29 predicate places. [2022-11-02 20:12:00,738 INFO L495 AbstractCegarLoop]: Abstraction has has 541 places, 522 transitions, 1190 flow [2022-11-02 20:12:00,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 503.22222222222223) internal successors, (9058), 18 states have internal predecessors, (9058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:00,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:00,741 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:00,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:12:00,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:12:00,957 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:12:00,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:00,957 INFO L85 PathProgramCache]: Analyzing trace with hash -857486049, now seen corresponding path program 2 times [2022-11-02 20:12:00,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:00,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579024168] [2022-11-02 20:12:00,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:00,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:01,380 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:01,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:01,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579024168] [2022-11-02 20:12:01,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579024168] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:12:01,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494552376] [2022-11-02 20:12:01,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:12:01,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:12:01,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:12:01,385 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:12:01,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:12:01,511 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 20:12:01,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:12:01,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-02 20:12:01,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:12:01,531 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-02 20:12:01,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-02 20:12:01,589 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:12:01,589 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-02 20:12:01,630 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:12:01,630 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-11-02 20:12:01,665 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-02 20:12:01,666 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:12:01,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494552376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:01,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:12:01,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-02 20:12:01,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563685332] [2022-11-02 20:12:01,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:01,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:12:01,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:01,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:12:01,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:12:01,670 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 514 [2022-11-02 20:12:01,672 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 522 transitions, 1190 flow. Second operand has 6 states, 6 states have (on average 254.5) internal successors, (1527), 6 states have internal predecessors, (1527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:01,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:01,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 514 [2022-11-02 20:12:01,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:03,158 INFO L130 PetriNetUnfolder]: 649/2366 cut-off events. [2022-11-02 20:12:03,159 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-11-02 20:12:03,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4006 conditions, 2366 events. 649/2366 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11534 event pairs, 648 based on Foata normal form. 0/2105 useless extension candidates. Maximal degree in co-relation 3863. Up to 1520 conditions per place. [2022-11-02 20:12:03,171 INFO L137 encePairwiseOnDemand]: 484/514 looper letters, 223 selfloop transitions, 25 changer transitions 0/517 dead transitions. [2022-11-02 20:12:03,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 517 transitions, 1676 flow [2022-11-02 20:12:03,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:12:03,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:12:03,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1765 transitions. [2022-11-02 20:12:03,176 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5723086900129701 [2022-11-02 20:12:03,176 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1765 transitions. [2022-11-02 20:12:03,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1765 transitions. [2022-11-02 20:12:03,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:03,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1765 transitions. [2022-11-02 20:12:03,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 294.1666666666667) internal successors, (1765), 6 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:03,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:03,187 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:03,188 INFO L175 Difference]: Start difference. First operand has 541 places, 522 transitions, 1190 flow. Second operand 6 states and 1765 transitions. [2022-11-02 20:12:03,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 517 transitions, 1676 flow [2022-11-02 20:12:03,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 517 transitions, 1652 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-02 20:12:03,200 INFO L231 Difference]: Finished difference. Result has 535 places, 517 transitions, 1206 flow [2022-11-02 20:12:03,202 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1156, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1206, PETRI_PLACES=535, PETRI_TRANSITIONS=517} [2022-11-02 20:12:03,202 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 23 predicate places. [2022-11-02 20:12:03,202 INFO L495 AbstractCegarLoop]: Abstraction has has 535 places, 517 transitions, 1206 flow [2022-11-02 20:12:03,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 254.5) internal successors, (1527), 6 states have internal predecessors, (1527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:03,203 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:03,204 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:03,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:12:03,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:12:03,419 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:12:03,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:03,420 INFO L85 PathProgramCache]: Analyzing trace with hash 263191692, now seen corresponding path program 1 times [2022-11-02 20:12:03,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:03,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304013174] [2022-11-02 20:12:03,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:03,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:03,922 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:03,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:03,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304013174] [2022-11-02 20:12:03,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304013174] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:12:03,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698028465] [2022-11-02 20:12:03,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:03,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:12:03,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:12:03,927 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:12:03,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 20:12:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:04,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-02 20:12:04,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:12:04,204 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:04,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:12:04,418 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:04,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698028465] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:12:04,418 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:12:04,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-02 20:12:04,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425931498] [2022-11-02 20:12:04,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:12:04,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-02 20:12:04,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:04,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-02 20:12:04,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-02 20:12:04,430 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 514 [2022-11-02 20:12:04,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 517 transitions, 1206 flow. Second operand has 23 states, 23 states have (on average 503.39130434782606) internal successors, (11578), 23 states have internal predecessors, (11578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:04,441 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:04,441 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 514 [2022-11-02 20:12:04,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:04,972 INFO L130 PetriNetUnfolder]: 1/543 cut-off events. [2022-11-02 20:12:04,973 INFO L131 PetriNetUnfolder]: For 123/123 co-relation queries the response was YES. [2022-11-02 20:12:04,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 741 conditions, 543 events. 1/543 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 122 event pairs, 0 based on Foata normal form. 3/518 useless extension candidates. Maximal degree in co-relation 268. Up to 16 conditions per place. [2022-11-02 20:12:04,975 INFO L137 encePairwiseOnDemand]: 508/514 looper letters, 25 selfloop transitions, 30 changer transitions 0/543 dead transitions. [2022-11-02 20:12:04,975 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 564 places, 543 transitions, 1456 flow [2022-11-02 20:12:04,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-02 20:12:04,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-02 20:12:04,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 15088 transitions. [2022-11-02 20:12:05,000 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9784695201037613 [2022-11-02 20:12:05,001 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 15088 transitions. [2022-11-02 20:12:05,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 15088 transitions. [2022-11-02 20:12:05,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:05,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 15088 transitions. [2022-11-02 20:12:05,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 502.93333333333334) internal successors, (15088), 30 states have internal predecessors, (15088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:05,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 514.0) internal successors, (15934), 31 states have internal predecessors, (15934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:05,068 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 514.0) internal successors, (15934), 31 states have internal predecessors, (15934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:05,068 INFO L175 Difference]: Start difference. First operand has 535 places, 517 transitions, 1206 flow. Second operand 30 states and 15088 transitions. [2022-11-02 20:12:05,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 564 places, 543 transitions, 1456 flow [2022-11-02 20:12:05,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 543 transitions, 1406 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:12:05,081 INFO L231 Difference]: Finished difference. Result has 563 places, 527 transitions, 1308 flow [2022-11-02 20:12:05,082 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1156, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=494, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1308, PETRI_PLACES=563, PETRI_TRANSITIONS=527} [2022-11-02 20:12:05,082 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 51 predicate places. [2022-11-02 20:12:05,083 INFO L495 AbstractCegarLoop]: Abstraction has has 563 places, 527 transitions, 1308 flow [2022-11-02 20:12:05,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 503.39130434782606) internal successors, (11578), 23 states have internal predecessors, (11578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:05,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:05,086 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:05,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:12:05,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f089e92-8d7d-4aed-9e7e-019a8f99cced/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-02 20:12:05,299 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:12:05,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:05,300 INFO L85 PathProgramCache]: Analyzing trace with hash 357116480, now seen corresponding path program 2 times [2022-11-02 20:12:05,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:05,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712246659] [2022-11-02 20:12:05,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:05,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:06,028 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:12:06,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:06,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712246659] [2022-11-02 20:12:06,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712246659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:06,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:06,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:12:06,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826953081] [2022-11-02 20:12:06,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:06,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:12:06,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:06,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:12:06,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:12:06,034 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 514 [2022-11-02 20:12:06,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 527 transitions, 1308 flow. Second operand has 6 states, 6 states have (on average 273.6666666666667) internal successors, (1642), 6 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:06,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:06,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 514 [2022-11-02 20:12:06,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:07,249 INFO L130 PetriNetUnfolder]: 778/2698 cut-off events. [2022-11-02 20:12:07,249 INFO L131 PetriNetUnfolder]: For 118/118 co-relation queries the response was YES. [2022-11-02 20:12:07,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4645 conditions, 2698 events. 778/2698 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 13777 event pairs, 777 based on Foata normal form. 0/2413 useless extension candidates. Maximal degree in co-relation 4422. Up to 1779 conditions per place. [2022-11-02 20:12:07,267 INFO L137 encePairwiseOnDemand]: 508/514 looper letters, 224 selfloop transitions, 5 changer transitions 0/526 dead transitions. [2022-11-02 20:12:07,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 526 transitions, 1764 flow [2022-11-02 20:12:07,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:12:07,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:12:07,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1850 transitions. [2022-11-02 20:12:07,273 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5998702983138781 [2022-11-02 20:12:07,273 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1850 transitions. [2022-11-02 20:12:07,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1850 transitions. [2022-11-02 20:12:07,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:07,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1850 transitions. [2022-11-02 20:12:07,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 308.3333333333333) internal successors, (1850), 6 states have internal predecessors, (1850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:07,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:07,283 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:07,283 INFO L175 Difference]: Start difference. First operand has 563 places, 527 transitions, 1308 flow. Second operand 6 states and 1850 transitions. [2022-11-02 20:12:07,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 526 transitions, 1764 flow [2022-11-02 20:12:07,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 526 transitions, 1718 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-02 20:12:07,297 INFO L231 Difference]: Finished difference. Result has 549 places, 526 transitions, 1270 flow [2022-11-02 20:12:07,298 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1260, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=521, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1270, PETRI_PLACES=549, PETRI_TRANSITIONS=526} [2022-11-02 20:12:07,299 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 37 predicate places. [2022-11-02 20:12:07,299 INFO L495 AbstractCegarLoop]: Abstraction has has 549 places, 526 transitions, 1270 flow [2022-11-02 20:12:07,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 273.6666666666667) internal successors, (1642), 6 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:07,300 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:07,300 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:07,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:12:07,301 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:12:07,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:07,301 INFO L85 PathProgramCache]: Analyzing trace with hash -688081602, now seen corresponding path program 1 times [2022-11-02 20:12:07,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:07,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13835361] [2022-11-02 20:12:07,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:07,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:08,172 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:12:08,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:08,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13835361] [2022-11-02 20:12:08,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13835361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:08,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:08,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:12:08,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687927837] [2022-11-02 20:12:08,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:08,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:12:08,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:08,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:12:08,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:12:08,179 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 514 [2022-11-02 20:12:08,180 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 526 transitions, 1270 flow. Second operand has 6 states, 6 states have (on average 278.1666666666667) internal successors, (1669), 6 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:08,181 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:08,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 514 [2022-11-02 20:12:08,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:10,449 INFO L130 PetriNetUnfolder]: 1388/4415 cut-off events. [2022-11-02 20:12:10,450 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-02 20:12:10,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7616 conditions, 4415 events. 1388/4415 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 28999 event pairs, 110 based on Foata normal form. 0/3961 useless extension candidates. Maximal degree in co-relation 7414. Up to 1934 conditions per place. [2022-11-02 20:12:10,477 INFO L137 encePairwiseOnDemand]: 480/514 looper letters, 311 selfloop transitions, 79 changer transitions 0/689 dead transitions. [2022-11-02 20:12:10,478 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 689 transitions, 2376 flow [2022-11-02 20:12:10,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:12:10,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:12:10,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2025 transitions. [2022-11-02 20:12:10,482 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6566147859922179 [2022-11-02 20:12:10,483 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2025 transitions. [2022-11-02 20:12:10,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2025 transitions. [2022-11-02 20:12:10,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:10,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2025 transitions. [2022-11-02 20:12:10,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 337.5) internal successors, (2025), 6 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:10,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:10,492 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:10,493 INFO L175 Difference]: Start difference. First operand has 549 places, 526 transitions, 1270 flow. Second operand 6 states and 2025 transitions. [2022-11-02 20:12:10,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 689 transitions, 2376 flow [2022-11-02 20:12:10,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 547 places, 689 transitions, 2366 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:12:10,508 INFO L231 Difference]: Finished difference. Result has 552 places, 592 transitions, 1750 flow [2022-11-02 20:12:10,509 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1256, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=524, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=493, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1750, PETRI_PLACES=552, PETRI_TRANSITIONS=592} [2022-11-02 20:12:10,509 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 40 predicate places. [2022-11-02 20:12:10,509 INFO L495 AbstractCegarLoop]: Abstraction has has 552 places, 592 transitions, 1750 flow [2022-11-02 20:12:10,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 278.1666666666667) internal successors, (1669), 6 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:10,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:10,511 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:10,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:12:10,511 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:12:10,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:10,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1256124734, now seen corresponding path program 1 times [2022-11-02 20:12:10,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:10,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283960131] [2022-11-02 20:12:10,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:10,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:10,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:11,193 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:12:11,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:11,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283960131] [2022-11-02 20:12:11,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283960131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:11,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:11,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:12:11,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377264887] [2022-11-02 20:12:11,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:11,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:12:11,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:11,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:12:11,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:12:11,199 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 514 [2022-11-02 20:12:11,201 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 552 places, 592 transitions, 1750 flow. Second operand has 6 states, 6 states have (on average 277.3333333333333) internal successors, (1664), 6 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:11,201 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:11,201 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 514 [2022-11-02 20:12:11,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:13,312 INFO L130 PetriNetUnfolder]: 1207/4239 cut-off events. [2022-11-02 20:12:13,312 INFO L131 PetriNetUnfolder]: For 1430/1526 co-relation queries the response was YES. [2022-11-02 20:12:13,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8471 conditions, 4239 events. 1207/4239 cut-off events. For 1430/1526 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 27502 event pairs, 807 based on Foata normal form. 0/3844 useless extension candidates. Maximal degree in co-relation 8268. Up to 2664 conditions per place. [2022-11-02 20:12:13,349 INFO L137 encePairwiseOnDemand]: 490/514 looper letters, 270 selfloop transitions, 20 changer transitions 0/588 dead transitions. [2022-11-02 20:12:13,350 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 588 transitions, 2322 flow [2022-11-02 20:12:13,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:12:13,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:12:13,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1852 transitions. [2022-11-02 20:12:13,355 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6005188067444877 [2022-11-02 20:12:13,355 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1852 transitions. [2022-11-02 20:12:13,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1852 transitions. [2022-11-02 20:12:13,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:13,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1852 transitions. [2022-11-02 20:12:13,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 308.6666666666667) internal successors, (1852), 6 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:13,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:13,367 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:13,368 INFO L175 Difference]: Start difference. First operand has 552 places, 592 transitions, 1750 flow. Second operand 6 states and 1852 transitions. [2022-11-02 20:12:13,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 588 transitions, 2322 flow [2022-11-02 20:12:13,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 588 transitions, 2322 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:12:13,386 INFO L231 Difference]: Finished difference. Result has 553 places, 588 transitions, 1782 flow [2022-11-02 20:12:13,388 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1742, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=568, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1782, PETRI_PLACES=553, PETRI_TRANSITIONS=588} [2022-11-02 20:12:13,389 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 41 predicate places. [2022-11-02 20:12:13,389 INFO L495 AbstractCegarLoop]: Abstraction has has 553 places, 588 transitions, 1782 flow [2022-11-02 20:12:13,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 277.3333333333333) internal successors, (1664), 6 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:13,390 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:13,390 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:13,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:12:13,390 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:12:13,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:13,391 INFO L85 PathProgramCache]: Analyzing trace with hash -104921240, now seen corresponding path program 1 times [2022-11-02 20:12:13,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:13,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693931631] [2022-11-02 20:12:13,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:13,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:14,142 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:12:14,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:14,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693931631] [2022-11-02 20:12:14,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693931631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:14,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:14,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:12:14,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950863159] [2022-11-02 20:12:14,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:14,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:12:14,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:14,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:12:14,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:12:14,146 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 514 [2022-11-02 20:12:14,148 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 588 transitions, 1782 flow. Second operand has 6 states, 6 states have (on average 270.5) internal successors, (1623), 6 states have internal predecessors, (1623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:14,148 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:14,148 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 514 [2022-11-02 20:12:14,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:15,842 INFO L130 PetriNetUnfolder]: 1207/4235 cut-off events. [2022-11-02 20:12:15,843 INFO L131 PetriNetUnfolder]: For 1430/1526 co-relation queries the response was YES. [2022-11-02 20:12:15,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8492 conditions, 4235 events. 1207/4235 cut-off events. For 1430/1526 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 27446 event pairs, 807 based on Foata normal form. 0/3844 useless extension candidates. Maximal degree in co-relation 8288. Up to 2672 conditions per place. [2022-11-02 20:12:15,891 INFO L137 encePairwiseOnDemand]: 490/514 looper letters, 274 selfloop transitions, 20 changer transitions 0/584 dead transitions. [2022-11-02 20:12:15,891 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 554 places, 584 transitions, 2362 flow [2022-11-02 20:12:15,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:12:15,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:12:15,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1808 transitions. [2022-11-02 20:12:15,898 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5862516212710766 [2022-11-02 20:12:15,898 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1808 transitions. [2022-11-02 20:12:15,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1808 transitions. [2022-11-02 20:12:15,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:15,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1808 transitions. [2022-11-02 20:12:15,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 301.3333333333333) internal successors, (1808), 6 states have internal predecessors, (1808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:15,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:15,907 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:15,908 INFO L175 Difference]: Start difference. First operand has 553 places, 588 transitions, 1782 flow. Second operand 6 states and 1808 transitions. [2022-11-02 20:12:15,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 554 places, 584 transitions, 2362 flow [2022-11-02 20:12:15,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 584 transitions, 2322 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:12:15,925 INFO L231 Difference]: Finished difference. Result has 549 places, 584 transitions, 1774 flow [2022-11-02 20:12:15,927 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1734, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=584, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1774, PETRI_PLACES=549, PETRI_TRANSITIONS=584} [2022-11-02 20:12:15,928 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 37 predicate places. [2022-11-02 20:12:15,928 INFO L495 AbstractCegarLoop]: Abstraction has has 549 places, 584 transitions, 1774 flow [2022-11-02 20:12:15,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 270.5) internal successors, (1623), 6 states have internal predecessors, (1623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:15,929 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:15,929 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:15,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:12:15,930 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:12:15,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:15,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1452609513, now seen corresponding path program 1 times [2022-11-02 20:12:15,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:15,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577032052] [2022-11-02 20:12:15,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:15,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:16,739 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:12:16,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:16,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577032052] [2022-11-02 20:12:16,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577032052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:16,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:16,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:12:16,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634521355] [2022-11-02 20:12:16,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:16,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:12:16,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:16,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:12:16,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:12:16,744 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 514 [2022-11-02 20:12:16,746 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 584 transitions, 1774 flow. Second operand has 6 states, 6 states have (on average 271.3333333333333) internal successors, (1628), 6 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:16,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:16,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 514 [2022-11-02 20:12:16,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:18,638 INFO L130 PetriNetUnfolder]: 1207/4231 cut-off events. [2022-11-02 20:12:18,638 INFO L131 PetriNetUnfolder]: For 1438/1534 co-relation queries the response was YES. [2022-11-02 20:12:18,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8484 conditions, 4231 events. 1207/4231 cut-off events. For 1438/1534 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 27462 event pairs, 807 based on Foata normal form. 0/3844 useless extension candidates. Maximal degree in co-relation 8280. Up to 2668 conditions per place. [2022-11-02 20:12:18,684 INFO L137 encePairwiseOnDemand]: 490/514 looper letters, 270 selfloop transitions, 20 changer transitions 0/580 dead transitions. [2022-11-02 20:12:18,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 550 places, 580 transitions, 2346 flow [2022-11-02 20:12:18,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:12:18,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:12:18,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1804 transitions. [2022-11-02 20:12:18,688 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5849546044098574 [2022-11-02 20:12:18,688 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1804 transitions. [2022-11-02 20:12:18,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1804 transitions. [2022-11-02 20:12:18,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:18,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1804 transitions. [2022-11-02 20:12:18,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 300.6666666666667) internal successors, (1804), 6 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:18,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:18,702 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:18,702 INFO L175 Difference]: Start difference. First operand has 549 places, 584 transitions, 1774 flow. Second operand 6 states and 1804 transitions. [2022-11-02 20:12:18,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 550 places, 580 transitions, 2346 flow [2022-11-02 20:12:18,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 580 transitions, 2306 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:12:18,722 INFO L231 Difference]: Finished difference. Result has 545 places, 580 transitions, 1766 flow [2022-11-02 20:12:18,724 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1726, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=560, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1766, PETRI_PLACES=545, PETRI_TRANSITIONS=580} [2022-11-02 20:12:18,724 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 33 predicate places. [2022-11-02 20:12:18,724 INFO L495 AbstractCegarLoop]: Abstraction has has 545 places, 580 transitions, 1766 flow [2022-11-02 20:12:18,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 271.3333333333333) internal successors, (1628), 6 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:18,725 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:18,725 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:18,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:12:18,726 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:12:18,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:18,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1643369755, now seen corresponding path program 1 times [2022-11-02 20:12:18,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:18,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346743620] [2022-11-02 20:12:18,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:18,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:19,646 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:12:19,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:19,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346743620] [2022-11-02 20:12:19,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346743620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:19,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:19,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:12:19,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759099861] [2022-11-02 20:12:19,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:19,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:12:19,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:19,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:12:19,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:12:19,653 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 514 [2022-11-02 20:12:19,655 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 580 transitions, 1766 flow. Second operand has 6 states, 6 states have (on average 283.5) internal successors, (1701), 6 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:19,655 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:19,655 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 514 [2022-11-02 20:12:19,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:21,242 INFO L130 PetriNetUnfolder]: 1278/4365 cut-off events. [2022-11-02 20:12:21,243 INFO L131 PetriNetUnfolder]: For 1453/1557 co-relation queries the response was YES. [2022-11-02 20:12:21,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8782 conditions, 4365 events. 1278/4365 cut-off events. For 1453/1557 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 28373 event pairs, 874 based on Foata normal form. 0/3968 useless extension candidates. Maximal degree in co-relation 8575. Up to 2816 conditions per place. [2022-11-02 20:12:21,272 INFO L137 encePairwiseOnDemand]: 508/514 looper letters, 275 selfloop transitions, 5 changer transitions 0/579 dead transitions. [2022-11-02 20:12:21,272 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 579 transitions, 2324 flow [2022-11-02 20:12:21,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:12:21,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:12:21,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1845 transitions. [2022-11-02 20:12:21,276 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5982490272373541 [2022-11-02 20:12:21,276 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1845 transitions. [2022-11-02 20:12:21,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1845 transitions. [2022-11-02 20:12:21,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:21,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1845 transitions. [2022-11-02 20:12:21,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 307.5) internal successors, (1845), 6 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:21,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:21,285 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:21,286 INFO L175 Difference]: Start difference. First operand has 545 places, 580 transitions, 1766 flow. Second operand 6 states and 1845 transitions. [2022-11-02 20:12:21,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 579 transitions, 2324 flow [2022-11-02 20:12:21,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 579 transitions, 2284 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:12:21,302 INFO L231 Difference]: Finished difference. Result has 544 places, 579 transitions, 1734 flow [2022-11-02 20:12:21,303 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1724, PETRI_DIFFERENCE_MINUEND_PLACES=539, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=579, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=574, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1734, PETRI_PLACES=544, PETRI_TRANSITIONS=579} [2022-11-02 20:12:21,304 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 32 predicate places. [2022-11-02 20:12:21,304 INFO L495 AbstractCegarLoop]: Abstraction has has 544 places, 579 transitions, 1734 flow [2022-11-02 20:12:21,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 283.5) internal successors, (1701), 6 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:21,305 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:21,305 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:21,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:12:21,305 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:12:21,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:21,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1814305549, now seen corresponding path program 1 times [2022-11-02 20:12:21,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:21,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217091154] [2022-11-02 20:12:21,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:21,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:22,268 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:12:22,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:22,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217091154] [2022-11-02 20:12:22,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217091154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:22,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:22,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:12:22,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980567574] [2022-11-02 20:12:22,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:22,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:12:22,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:22,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:12:22,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:12:22,274 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 514 [2022-11-02 20:12:22,275 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 579 transitions, 1734 flow. Second operand has 6 states, 6 states have (on average 288.0) internal successors, (1728), 6 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:22,275 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:22,276 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 514 [2022-11-02 20:12:22,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:23,821 INFO L130 PetriNetUnfolder]: 1278/4363 cut-off events. [2022-11-02 20:12:23,821 INFO L131 PetriNetUnfolder]: For 1450/1554 co-relation queries the response was YES. [2022-11-02 20:12:23,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8761 conditions, 4363 events. 1278/4363 cut-off events. For 1450/1554 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 28266 event pairs, 874 based on Foata normal form. 0/3968 useless extension candidates. Maximal degree in co-relation 8554. Up to 2797 conditions per place. [2022-11-02 20:12:23,840 INFO L137 encePairwiseOnDemand]: 502/514 looper letters, 266 selfloop transitions, 10 changer transitions 0/577 dead transitions. [2022-11-02 20:12:23,841 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 577 transitions, 2282 flow [2022-11-02 20:12:23,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:12:23,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:12:23,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1854 transitions. [2022-11-02 20:12:23,858 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6011673151750972 [2022-11-02 20:12:23,858 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1854 transitions. [2022-11-02 20:12:23,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1854 transitions. [2022-11-02 20:12:23,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:23,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1854 transitions. [2022-11-02 20:12:23,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 309.0) internal successors, (1854), 6 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:23,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:23,866 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:23,867 INFO L175 Difference]: Start difference. First operand has 544 places, 579 transitions, 1734 flow. Second operand 6 states and 1854 transitions. [2022-11-02 20:12:23,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 577 transitions, 2282 flow [2022-11-02 20:12:23,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 577 transitions, 2272 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:12:23,883 INFO L231 Difference]: Finished difference. Result has 542 places, 577 transitions, 1740 flow [2022-11-02 20:12:23,884 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1720, PETRI_DIFFERENCE_MINUEND_PLACES=537, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=577, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=567, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1740, PETRI_PLACES=542, PETRI_TRANSITIONS=577} [2022-11-02 20:12:23,885 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 30 predicate places. [2022-11-02 20:12:23,885 INFO L495 AbstractCegarLoop]: Abstraction has has 542 places, 577 transitions, 1740 flow [2022-11-02 20:12:23,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 288.0) internal successors, (1728), 6 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:23,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:23,886 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:23,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:12:23,887 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:12:23,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:23,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1208481269, now seen corresponding path program 1 times [2022-11-02 20:12:23,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:23,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648251691] [2022-11-02 20:12:23,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:23,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:25,666 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:12:25,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:25,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648251691] [2022-11-02 20:12:25,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648251691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:25,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:25,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:12:25,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352789338] [2022-11-02 20:12:25,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:25,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:12:25,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:25,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:12:25,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:12:25,671 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 514 [2022-11-02 20:12:25,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 577 transitions, 1740 flow. Second operand has 6 states, 6 states have (on average 308.6666666666667) internal successors, (1852), 6 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:25,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:25,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 514 [2022-11-02 20:12:25,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:27,550 INFO L130 PetriNetUnfolder]: 1524/4854 cut-off events. [2022-11-02 20:12:27,551 INFO L131 PetriNetUnfolder]: For 1577/1689 co-relation queries the response was YES. [2022-11-02 20:12:27,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9867 conditions, 4854 events. 1524/4854 cut-off events. For 1577/1689 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 32031 event pairs, 639 based on Foata normal form. 16/4468 useless extension candidates. Maximal degree in co-relation 9662. Up to 2704 conditions per place. [2022-11-02 20:12:27,579 INFO L137 encePairwiseOnDemand]: 491/514 looper letters, 346 selfloop transitions, 130 changer transitions 0/786 dead transitions. [2022-11-02 20:12:27,579 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 786 transitions, 3486 flow [2022-11-02 20:12:27,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:12:27,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:12:27,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2047 transitions. [2022-11-02 20:12:27,583 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6637483787289234 [2022-11-02 20:12:27,583 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2047 transitions. [2022-11-02 20:12:27,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2047 transitions. [2022-11-02 20:12:27,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:27,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2047 transitions. [2022-11-02 20:12:27,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 341.1666666666667) internal successors, (2047), 6 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:27,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:27,590 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:27,590 INFO L175 Difference]: Start difference. First operand has 542 places, 577 transitions, 1740 flow. Second operand 6 states and 2047 transitions. [2022-11-02 20:12:27,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 786 transitions, 3486 flow [2022-11-02 20:12:27,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 786 transitions, 3466 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:12:27,611 INFO L231 Difference]: Finished difference. Result has 547 places, 706 transitions, 2948 flow [2022-11-02 20:12:27,612 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1720, PETRI_DIFFERENCE_MINUEND_PLACES=537, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=577, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2948, PETRI_PLACES=547, PETRI_TRANSITIONS=706} [2022-11-02 20:12:27,612 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 35 predicate places. [2022-11-02 20:12:27,612 INFO L495 AbstractCegarLoop]: Abstraction has has 547 places, 706 transitions, 2948 flow [2022-11-02 20:12:27,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 308.6666666666667) internal successors, (1852), 6 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:27,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:27,614 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:27,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:12:27,614 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:12:27,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:27,614 INFO L85 PathProgramCache]: Analyzing trace with hash 2093648283, now seen corresponding path program 1 times [2022-11-02 20:12:27,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:27,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365111734] [2022-11-02 20:12:27,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:27,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:29,038 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:12:29,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:29,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365111734] [2022-11-02 20:12:29,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365111734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:29,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:29,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:12:29,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817955026] [2022-11-02 20:12:29,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:29,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:12:29,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:29,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:12:29,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:12:29,043 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 514 [2022-11-02 20:12:29,044 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 547 places, 706 transitions, 2948 flow. Second operand has 6 states, 6 states have (on average 307.1666666666667) internal successors, (1843), 6 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:29,044 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:29,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 514 [2022-11-02 20:12:29,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:31,463 INFO L130 PetriNetUnfolder]: 1637/5631 cut-off events. [2022-11-02 20:12:31,464 INFO L131 PetriNetUnfolder]: For 3960/4201 co-relation queries the response was YES. [2022-11-02 20:12:31,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12866 conditions, 5631 events. 1637/5631 cut-off events. For 3960/4201 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 40618 event pairs, 523 based on Foata normal form. 0/5270 useless extension candidates. Maximal degree in co-relation 12657. Up to 2967 conditions per place. [2022-11-02 20:12:31,503 INFO L137 encePairwiseOnDemand]: 492/514 looper letters, 473 selfloop transitions, 129 changer transitions 5/914 dead transitions. [2022-11-02 20:12:31,503 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 914 transitions, 5200 flow [2022-11-02 20:12:31,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:12:31,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:12:31,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2031 transitions. [2022-11-02 20:12:31,508 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6585603112840467 [2022-11-02 20:12:31,508 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2031 transitions. [2022-11-02 20:12:31,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2031 transitions. [2022-11-02 20:12:31,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:31,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2031 transitions. [2022-11-02 20:12:31,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 338.5) internal successors, (2031), 6 states have internal predecessors, (2031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:31,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:31,519 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:31,519 INFO L175 Difference]: Start difference. First operand has 547 places, 706 transitions, 2948 flow. Second operand 6 states and 2031 transitions. [2022-11-02 20:12:31,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 914 transitions, 5200 flow [2022-11-02 20:12:31,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 552 places, 914 transitions, 5200 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:12:31,554 INFO L231 Difference]: Finished difference. Result has 557 places, 833 transitions, 4414 flow [2022-11-02 20:12:31,555 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=2948, PETRI_DIFFERENCE_MINUEND_PLACES=547, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=706, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=670, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4414, PETRI_PLACES=557, PETRI_TRANSITIONS=833} [2022-11-02 20:12:31,556 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 45 predicate places. [2022-11-02 20:12:31,556 INFO L495 AbstractCegarLoop]: Abstraction has has 557 places, 833 transitions, 4414 flow [2022-11-02 20:12:31,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 307.1666666666667) internal successors, (1843), 6 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:31,557 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:31,558 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:31,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:12:31,558 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:12:31,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:31,559 INFO L85 PathProgramCache]: Analyzing trace with hash -562443915, now seen corresponding path program 1 times [2022-11-02 20:12:31,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:31,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803981144] [2022-11-02 20:12:31,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:31,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:33,025 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:12:33,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:33,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803981144] [2022-11-02 20:12:33,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803981144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:33,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:33,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:12:33,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375815312] [2022-11-02 20:12:33,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:33,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:12:33,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:33,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:12:33,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:12:33,029 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 514 [2022-11-02 20:12:33,031 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 557 places, 833 transitions, 4414 flow. Second operand has 6 states, 6 states have (on average 305.0) internal successors, (1830), 6 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:33,031 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:33,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 514 [2022-11-02 20:12:33,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:35,430 INFO L130 PetriNetUnfolder]: 1747/5789 cut-off events. [2022-11-02 20:12:35,430 INFO L131 PetriNetUnfolder]: For 5728/5756 co-relation queries the response was YES. [2022-11-02 20:12:35,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15230 conditions, 5789 events. 1747/5789 cut-off events. For 5728/5756 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 40963 event pairs, 657 based on Foata normal form. 0/5485 useless extension candidates. Maximal degree in co-relation 15017. Up to 3614 conditions per place. [2022-11-02 20:12:35,501 INFO L137 encePairwiseOnDemand]: 495/514 looper letters, 540 selfloop transitions, 84 changer transitions 0/931 dead transitions. [2022-11-02 20:12:35,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 931 transitions, 6176 flow [2022-11-02 20:12:35,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:12:35,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:12:35,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1960 transitions. [2022-11-02 20:12:35,505 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6355382619974059 [2022-11-02 20:12:35,505 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1960 transitions. [2022-11-02 20:12:35,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1960 transitions. [2022-11-02 20:12:35,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:35,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1960 transitions. [2022-11-02 20:12:35,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 326.6666666666667) internal successors, (1960), 6 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:35,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:35,514 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:35,515 INFO L175 Difference]: Start difference. First operand has 557 places, 833 transitions, 4414 flow. Second operand 6 states and 1960 transitions. [2022-11-02 20:12:35,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 561 places, 931 transitions, 6176 flow [2022-11-02 20:12:35,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 931 transitions, 5922 flow, removed 127 selfloop flow, removed 0 redundant places. [2022-11-02 20:12:35,566 INFO L231 Difference]: Finished difference. Result has 566 places, 904 transitions, 4950 flow [2022-11-02 20:12:35,567 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=4166, PETRI_DIFFERENCE_MINUEND_PLACES=556, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=833, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=785, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4950, PETRI_PLACES=566, PETRI_TRANSITIONS=904} [2022-11-02 20:12:35,568 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 54 predicate places. [2022-11-02 20:12:35,568 INFO L495 AbstractCegarLoop]: Abstraction has has 566 places, 904 transitions, 4950 flow [2022-11-02 20:12:35,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 305.0) internal successors, (1830), 6 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:35,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:35,570 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:35,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:12:35,570 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:12:35,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:35,571 INFO L85 PathProgramCache]: Analyzing trace with hash -764371748, now seen corresponding path program 1 times [2022-11-02 20:12:35,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:35,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876559283] [2022-11-02 20:12:35,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:35,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:40,208 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:12:40,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:40,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876559283] [2022-11-02 20:12:40,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876559283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:40,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:40,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-02 20:12:40,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479503947] [2022-11-02 20:12:40,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:40,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-02 20:12:40,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:40,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-02 20:12:40,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:12:40,213 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 514 [2022-11-02 20:12:40,217 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 904 transitions, 4950 flow. Second operand has 16 states, 16 states have (on average 248.9375) internal successors, (3983), 16 states have internal predecessors, (3983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:40,217 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:40,217 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 514 [2022-11-02 20:12:40,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:44,747 INFO L130 PetriNetUnfolder]: 2387/7079 cut-off events. [2022-11-02 20:12:44,747 INFO L131 PetriNetUnfolder]: For 8619/8696 co-relation queries the response was YES. [2022-11-02 20:12:44,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20872 conditions, 7079 events. 2387/7079 cut-off events. For 8619/8696 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 51860 event pairs, 405 based on Foata normal form. 79/6847 useless extension candidates. Maximal degree in co-relation 20647. Up to 2770 conditions per place. [2022-11-02 20:12:44,795 INFO L137 encePairwiseOnDemand]: 479/514 looper letters, 791 selfloop transitions, 187 changer transitions 6/1249 dead transitions. [2022-11-02 20:12:44,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 589 places, 1249 transitions, 8838 flow [2022-11-02 20:12:44,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-02 20:12:44,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-02 20:12:44,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6239 transitions. [2022-11-02 20:12:44,803 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5057555123216602 [2022-11-02 20:12:44,803 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 6239 transitions. [2022-11-02 20:12:44,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 6239 transitions. [2022-11-02 20:12:44,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:44,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 6239 transitions. [2022-11-02 20:12:44,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 259.9583333333333) internal successors, (6239), 24 states have internal predecessors, (6239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:44,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 514.0) internal successors, (12850), 25 states have internal predecessors, (12850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:44,827 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 514.0) internal successors, (12850), 25 states have internal predecessors, (12850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:44,827 INFO L175 Difference]: Start difference. First operand has 566 places, 904 transitions, 4950 flow. Second operand 24 states and 6239 transitions. [2022-11-02 20:12:44,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 589 places, 1249 transitions, 8838 flow [2022-11-02 20:12:44,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 589 places, 1249 transitions, 8766 flow, removed 36 selfloop flow, removed 0 redundant places. [2022-11-02 20:12:44,919 INFO L231 Difference]: Finished difference. Result has 598 places, 960 transitions, 5958 flow [2022-11-02 20:12:44,920 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=4896, PETRI_DIFFERENCE_MINUEND_PLACES=566, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=904, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=750, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=5958, PETRI_PLACES=598, PETRI_TRANSITIONS=960} [2022-11-02 20:12:44,920 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 86 predicate places. [2022-11-02 20:12:44,921 INFO L495 AbstractCegarLoop]: Abstraction has has 598 places, 960 transitions, 5958 flow [2022-11-02 20:12:44,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 248.9375) internal successors, (3983), 16 states have internal predecessors, (3983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:44,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:44,922 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:44,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 20:12:44,922 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:12:44,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:44,923 INFO L85 PathProgramCache]: Analyzing trace with hash 392645288, now seen corresponding path program 2 times [2022-11-02 20:12:44,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:44,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497348105] [2022-11-02 20:12:44,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:44,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:49,121 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:12:49,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:49,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497348105] [2022-11-02 20:12:49,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497348105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:49,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:49,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-02 20:12:49,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499774863] [2022-11-02 20:12:49,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:49,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-02 20:12:49,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:49,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-02 20:12:49,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-11-02 20:12:49,130 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 514 [2022-11-02 20:12:49,133 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 598 places, 960 transitions, 5958 flow. Second operand has 17 states, 17 states have (on average 248.23529411764707) internal successors, (4220), 17 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:49,133 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:49,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 514 [2022-11-02 20:12:49,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:55,299 INFO L130 PetriNetUnfolder]: 3660/10853 cut-off events. [2022-11-02 20:12:55,300 INFO L131 PetriNetUnfolder]: For 18108/18219 co-relation queries the response was YES. [2022-11-02 20:12:55,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33556 conditions, 10853 events. 3660/10853 cut-off events. For 18108/18219 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 92045 event pairs, 992 based on Foata normal form. 109/10499 useless extension candidates. Maximal degree in co-relation 33319. Up to 3463 conditions per place. [2022-11-02 20:12:55,420 INFO L137 encePairwiseOnDemand]: 465/514 looper letters, 956 selfloop transitions, 295 changer transitions 6/1522 dead transitions. [2022-11-02 20:12:55,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 614 places, 1522 transitions, 12177 flow [2022-11-02 20:12:55,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 20:12:55,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-02 20:12:55,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4656 transitions. [2022-11-02 20:12:55,432 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.532845044632639 [2022-11-02 20:12:55,433 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4656 transitions. [2022-11-02 20:12:55,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4656 transitions. [2022-11-02 20:12:55,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:55,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4656 transitions. [2022-11-02 20:12:55,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 273.88235294117646) internal successors, (4656), 17 states have internal predecessors, (4656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:55,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 514.0) internal successors, (9252), 18 states have internal predecessors, (9252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:55,465 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 514.0) internal successors, (9252), 18 states have internal predecessors, (9252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:55,465 INFO L175 Difference]: Start difference. First operand has 598 places, 960 transitions, 5958 flow. Second operand 17 states and 4656 transitions. [2022-11-02 20:12:55,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 614 places, 1522 transitions, 12177 flow [2022-11-02 20:12:55,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 608 places, 1522 transitions, 12112 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-11-02 20:12:55,647 INFO L231 Difference]: Finished difference. Result has 617 places, 1077 transitions, 8397 flow [2022-11-02 20:12:55,649 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=5918, PETRI_DIFFERENCE_MINUEND_PLACES=592, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=960, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=687, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=8397, PETRI_PLACES=617, PETRI_TRANSITIONS=1077} [2022-11-02 20:12:55,649 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 105 predicate places. [2022-11-02 20:12:55,649 INFO L495 AbstractCegarLoop]: Abstraction has has 617 places, 1077 transitions, 8397 flow [2022-11-02 20:12:55,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 248.23529411764707) internal successors, (4220), 17 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:55,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:55,651 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:55,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 20:12:55,651 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:12:55,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:55,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1065262060, now seen corresponding path program 3 times [2022-11-02 20:12:55,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:55,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738871528] [2022-11-02 20:12:55,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:55,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:13:00,069 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:13:00,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:13:00,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738871528] [2022-11-02 20:13:00,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738871528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:13:00,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:13:00,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-02 20:13:00,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783199072] [2022-11-02 20:13:00,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:13:00,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-02 20:13:00,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:13:00,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-02 20:13:00,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2022-11-02 20:13:00,075 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 514 [2022-11-02 20:13:00,078 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 617 places, 1077 transitions, 8397 flow. Second operand has 17 states, 17 states have (on average 234.11764705882354) internal successors, (3980), 17 states have internal predecessors, (3980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:00,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:13:00,079 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 514 [2022-11-02 20:13:00,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:13:08,612 INFO L130 PetriNetUnfolder]: 5181/15131 cut-off events. [2022-11-02 20:13:08,612 INFO L131 PetriNetUnfolder]: For 34150/34341 co-relation queries the response was YES. [2022-11-02 20:13:08,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49510 conditions, 15131 events. 5181/15131 cut-off events. For 34150/34341 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 139631 event pairs, 1138 based on Foata normal form. 108/14609 useless extension candidates. Maximal degree in co-relation 49434. Up to 4766 conditions per place. [2022-11-02 20:13:08,780 INFO L137 encePairwiseOnDemand]: 460/514 looper letters, 1116 selfloop transitions, 375 changer transitions 4/1745 dead transitions. [2022-11-02 20:13:08,780 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 640 places, 1745 transitions, 16684 flow [2022-11-02 20:13:08,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-02 20:13:08,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-02 20:13:08,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 5989 transitions. [2022-11-02 20:13:08,791 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.48548962386511024 [2022-11-02 20:13:08,792 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 5989 transitions. [2022-11-02 20:13:08,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 5989 transitions. [2022-11-02 20:13:08,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:13:08,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 5989 transitions. [2022-11-02 20:13:08,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 249.54166666666666) internal successors, (5989), 24 states have internal predecessors, (5989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:08,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 514.0) internal successors, (12850), 25 states have internal predecessors, (12850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:08,823 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 514.0) internal successors, (12850), 25 states have internal predecessors, (12850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:08,823 INFO L175 Difference]: Start difference. First operand has 617 places, 1077 transitions, 8397 flow. Second operand 24 states and 5989 transitions. [2022-11-02 20:13:08,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 640 places, 1745 transitions, 16684 flow [2022-11-02 20:13:09,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 633 places, 1745 transitions, 16525 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-02 20:13:09,056 INFO L231 Difference]: Finished difference. Result has 649 places, 1247 transitions, 11945 flow [2022-11-02 20:13:09,057 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=8274, PETRI_DIFFERENCE_MINUEND_PLACES=610, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1077, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=218, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=745, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=11945, PETRI_PLACES=649, PETRI_TRANSITIONS=1247} [2022-11-02 20:13:09,058 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 137 predicate places. [2022-11-02 20:13:09,058 INFO L495 AbstractCegarLoop]: Abstraction has has 649 places, 1247 transitions, 11945 flow [2022-11-02 20:13:09,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 234.11764705882354) internal successors, (3980), 17 states have internal predecessors, (3980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:09,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:13:09,059 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:13:09,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 20:13:09,059 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:13:09,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:13:09,060 INFO L85 PathProgramCache]: Analyzing trace with hash 302710598, now seen corresponding path program 4 times [2022-11-02 20:13:09,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:13:09,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188680852] [2022-11-02 20:13:09,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:13:09,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:13:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:13:12,901 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:13:12,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:13:12,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188680852] [2022-11-02 20:13:12,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188680852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:13:12,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:13:12,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-02 20:13:12,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052134263] [2022-11-02 20:13:12,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:13:12,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-02 20:13:12,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:13:12,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-02 20:13:12,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-11-02 20:13:12,907 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 514 [2022-11-02 20:13:12,909 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 649 places, 1247 transitions, 11945 flow. Second operand has 14 states, 14 states have (on average 236.71428571428572) internal successors, (3314), 14 states have internal predecessors, (3314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:12,909 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:13:12,909 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 514 [2022-11-02 20:13:12,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:13:26,061 INFO L130 PetriNetUnfolder]: 8159/23789 cut-off events. [2022-11-02 20:13:26,062 INFO L131 PetriNetUnfolder]: For 65730/65948 co-relation queries the response was YES. [2022-11-02 20:13:26,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79221 conditions, 23789 events. 8159/23789 cut-off events. For 65730/65948 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 245758 event pairs, 2365 based on Foata normal form. 149/22956 useless extension candidates. Maximal degree in co-relation 79120. Up to 7702 conditions per place. [2022-11-02 20:13:26,438 INFO L137 encePairwiseOnDemand]: 462/514 looper letters, 1037 selfloop transitions, 501 changer transitions 3/1791 dead transitions. [2022-11-02 20:13:26,439 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 668 places, 1791 transitions, 20380 flow [2022-11-02 20:13:26,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:13:26,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:13:26,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4961 transitions. [2022-11-02 20:13:26,446 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.4825875486381323 [2022-11-02 20:13:26,446 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 4961 transitions. [2022-11-02 20:13:26,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 4961 transitions. [2022-11-02 20:13:26,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:13:26,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 4961 transitions. [2022-11-02 20:13:26,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 248.05) internal successors, (4961), 20 states have internal predecessors, (4961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:26,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 514.0) internal successors, (10794), 21 states have internal predecessors, (10794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:26,466 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 514.0) internal successors, (10794), 21 states have internal predecessors, (10794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:26,466 INFO L175 Difference]: Start difference. First operand has 649 places, 1247 transitions, 11945 flow. Second operand 20 states and 4961 transitions. [2022-11-02 20:13:26,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 668 places, 1791 transitions, 20380 flow [2022-11-02 20:13:26,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 662 places, 1791 transitions, 20115 flow, removed 96 selfloop flow, removed 6 redundant places. [2022-11-02 20:13:26,943 INFO L231 Difference]: Finished difference. Result has 672 places, 1429 transitions, 16899 flow [2022-11-02 20:13:26,944 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=11716, PETRI_DIFFERENCE_MINUEND_PLACES=643, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=319, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=783, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=16899, PETRI_PLACES=672, PETRI_TRANSITIONS=1429} [2022-11-02 20:13:26,944 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 160 predicate places. [2022-11-02 20:13:26,945 INFO L495 AbstractCegarLoop]: Abstraction has has 672 places, 1429 transitions, 16899 flow [2022-11-02 20:13:26,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 236.71428571428572) internal successors, (3314), 14 states have internal predecessors, (3314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:26,945 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:13:26,946 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:13:26,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 20:13:26,946 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:13:26,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:13:26,947 INFO L85 PathProgramCache]: Analyzing trace with hash 570578660, now seen corresponding path program 5 times [2022-11-02 20:13:26,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:13:26,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241366793] [2022-11-02 20:13:26,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:13:26,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:13:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:13:30,940 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:13:30,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:13:30,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241366793] [2022-11-02 20:13:30,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241366793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:13:30,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:13:30,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-02 20:13:30,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329969334] [2022-11-02 20:13:30,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:13:30,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-02 20:13:30,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:13:30,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-02 20:13:30,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2022-11-02 20:13:30,947 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 514 [2022-11-02 20:13:30,951 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 672 places, 1429 transitions, 16899 flow. Second operand has 22 states, 22 states have (on average 209.3181818181818) internal successors, (4605), 22 states have internal predecessors, (4605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:30,951 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:13:30,951 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 514 [2022-11-02 20:13:30,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:13:55,012 INFO L130 PetriNetUnfolder]: 11612/31885 cut-off events. [2022-11-02 20:13:55,013 INFO L131 PetriNetUnfolder]: For 111239/111523 co-relation queries the response was YES. [2022-11-02 20:13:55,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110429 conditions, 31885 events. 11612/31885 cut-off events. For 111239/111523 co-relation queries the response was YES. Maximal size of possible extension queue 586. Compared 338881 event pairs, 2253 based on Foata normal form. 258/30866 useless extension candidates. Maximal degree in co-relation 110157. Up to 4843 conditions per place. [2022-11-02 20:13:55,620 INFO L137 encePairwiseOnDemand]: 441/514 looper letters, 1502 selfloop transitions, 780 changer transitions 9/2518 dead transitions. [2022-11-02 20:13:55,620 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 715 places, 2518 transitions, 32785 flow [2022-11-02 20:13:55,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-02 20:13:55,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-11-02 20:13:55,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 9688 transitions. [2022-11-02 20:13:55,636 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.4283692960735762 [2022-11-02 20:13:55,636 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 9688 transitions. [2022-11-02 20:13:55,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 9688 transitions. [2022-11-02 20:13:55,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:13:55,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 9688 transitions. [2022-11-02 20:13:55,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 220.1818181818182) internal successors, (9688), 44 states have internal predecessors, (9688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:55,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 514.0) internal successors, (23130), 45 states have internal predecessors, (23130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:55,677 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 514.0) internal successors, (23130), 45 states have internal predecessors, (23130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:55,677 INFO L175 Difference]: Start difference. First operand has 672 places, 1429 transitions, 16899 flow. Second operand 44 states and 9688 transitions. [2022-11-02 20:13:55,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 715 places, 2518 transitions, 32785 flow [2022-11-02 20:13:56,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 709 places, 2518 transitions, 32591 flow, removed 51 selfloop flow, removed 6 redundant places. [2022-11-02 20:13:56,844 INFO L231 Difference]: Finished difference. Result has 730 places, 1730 transitions, 25641 flow [2022-11-02 20:13:56,845 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=16739, PETRI_DIFFERENCE_MINUEND_PLACES=666, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=480, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=818, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=25641, PETRI_PLACES=730, PETRI_TRANSITIONS=1730} [2022-11-02 20:13:56,846 INFO L287 CegarLoopForPetriNet]: 512 programPoint places, 218 predicate places. [2022-11-02 20:13:56,846 INFO L495 AbstractCegarLoop]: Abstraction has has 730 places, 1730 transitions, 25641 flow [2022-11-02 20:13:56,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 209.3181818181818) internal successors, (4605), 22 states have internal predecessors, (4605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:56,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:13:56,848 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:13:56,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-02 20:13:56,848 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-11-02 20:13:56,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:13:56,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1582674954, now seen corresponding path program 6 times [2022-11-02 20:13:56,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:13:56,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932655161] [2022-11-02 20:13:56,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:13:56,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:13:57,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:14:01,707 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:14:01,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:14:01,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932655161] [2022-11-02 20:14:01,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932655161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:14:01,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:14:01,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-02 20:14:01,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273338108] [2022-11-02 20:14:01,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:14:01,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-02 20:14:01,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:14:01,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-02 20:14:01,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2022-11-02 20:14:01,713 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 514 [2022-11-02 20:14:01,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 730 places, 1730 transitions, 25641 flow. Second operand has 25 states, 25 states have (on average 189.68) internal successors, (4742), 25 states have internal predecessors, (4742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:14:01,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:14:01,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 514 [2022-11-02 20:14:01,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand