./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899b87b8-ec93-4460-80ea-f8d793d532ce/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899b87b8-ec93-4460-80ea-f8d793d532ce/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_899b87b8-ec93-4460-80ea-f8d793d532ce/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899b87b8-ec93-4460-80ea-f8d793d532ce/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899b87b8-ec93-4460-80ea-f8d793d532ce/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_899b87b8-ec93-4460-80ea-f8d793d532ce/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 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c --- 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 21:12:36,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:12:36,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:12:36,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:12:36,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:12:36,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:12:36,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:12:36,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:12:36,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:12:36,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:12:36,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:12:36,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:12:36,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:12:36,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:12:36,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:12:36,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:12:36,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:12:36,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:12:36,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:12:36,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:12:36,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:12:36,153 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:12:36,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:12:36,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:12:36,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:12:36,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:12:36,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:12:36,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:12:36,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:12:36,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:12:36,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:12:36,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:12:36,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:12:36,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:12:36,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:12:36,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:12:36,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:12:36,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:12:36,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:12:36,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:12:36,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:12:36,186 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899b87b8-ec93-4460-80ea-f8d793d532ce/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 21:12:36,237 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:12:36,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:12:36,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:12:36,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:12:36,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:12:36,240 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:12:36,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:12:36,241 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:12:36,241 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:12:36,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:12:36,243 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:12:36,243 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:12:36,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:12:36,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:12:36,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:12:36,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:12:36,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:12:36,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:12:36,245 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 21:12:36,245 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:12:36,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:12:36,245 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:12:36,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:12:36,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:12:36,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:12:36,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:12:36,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:12:36,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:12:36,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:12:36,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:12:36,248 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:12:36,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:12:36,248 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:12:36,249 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:12:36,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:12:36,249 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_899b87b8-ec93-4460-80ea-f8d793d532ce/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899b87b8-ec93-4460-80ea-f8d793d532ce/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c [2022-11-02 21:12:36,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:12:36,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:12:36,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:12:36,678 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:12:36,680 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:12:36,681 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899b87b8-ec93-4460-80ea-f8d793d532ce/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-11-02 21:12:36,771 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899b87b8-ec93-4460-80ea-f8d793d532ce/bin/uautomizer-Dbtcem3rbc/data/c90420aa5/409fcd82d9f04512afb69babbf798f5a/FLAG409f09e24 [2022-11-02 21:12:37,532 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:12:37,536 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899b87b8-ec93-4460-80ea-f8d793d532ce/sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-11-02 21:12:37,567 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899b87b8-ec93-4460-80ea-f8d793d532ce/bin/uautomizer-Dbtcem3rbc/data/c90420aa5/409fcd82d9f04512afb69babbf798f5a/FLAG409f09e24 [2022-11-02 21:12:37,676 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899b87b8-ec93-4460-80ea-f8d793d532ce/bin/uautomizer-Dbtcem3rbc/data/c90420aa5/409fcd82d9f04512afb69babbf798f5a [2022-11-02 21:12:37,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:12:37,685 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:12:37,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:12:37,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:12:37,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:12:37,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:12:37" (1/1) ... [2022-11-02 21:12:37,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44bc2d34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:37, skipping insertion in model container [2022-11-02 21:12:37,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:12:37" (1/1) ... [2022-11-02 21:12:37,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:12:37,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:12:38,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:12:38,828 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:12:38,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:12:39,011 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:12:39,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:39 WrapperNode [2022-11-02 21:12:39,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:12:39,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:12:39,014 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:12:39,014 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:12:39,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:39" (1/1) ... [2022-11-02 21:12:39,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:39" (1/1) ... [2022-11-02 21:12:39,106 INFO L138 Inliner]: procedures = 368, calls = 34, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 177 [2022-11-02 21:12:39,107 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:12:39,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:12:39,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:12:39,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:12:39,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:39" (1/1) ... [2022-11-02 21:12:39,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:39" (1/1) ... [2022-11-02 21:12:39,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:39" (1/1) ... [2022-11-02 21:12:39,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:39" (1/1) ... [2022-11-02 21:12:39,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:39" (1/1) ... [2022-11-02 21:12:39,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:39" (1/1) ... [2022-11-02 21:12:39,172 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:39" (1/1) ... [2022-11-02 21:12:39,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:39" (1/1) ... [2022-11-02 21:12:39,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:12:39,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:12:39,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:12:39,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:12:39,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:39" (1/1) ... [2022-11-02 21:12:39,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:12:39,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899b87b8-ec93-4460-80ea-f8d793d532ce/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:12:39,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899b87b8-ec93-4460-80ea-f8d793d532ce/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:12:39,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899b87b8-ec93-4460-80ea-f8d793d532ce/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:12:39,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:12:39,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 21:12:39,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:12:39,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:12:39,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:12:39,296 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 21:12:39,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 21:12:39,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:12:39,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 21:12:39,297 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 21:12:39,297 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 21:12:39,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:12:39,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:12:39,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:12:39,300 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 21:12:39,544 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:12:39,546 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:12:40,363 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:12:40,380 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:12:40,384 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 21:12:40,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:12:40 BoogieIcfgContainer [2022-11-02 21:12:40,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:12:40,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:12:40,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:12:40,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:12:40,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:12:37" (1/3) ... [2022-11-02 21:12:40,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a87626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:12:40, skipping insertion in model container [2022-11-02 21:12:40,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:39" (2/3) ... [2022-11-02 21:12:40,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a87626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:12:40, skipping insertion in model container [2022-11-02 21:12:40,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:12:40" (3/3) ... [2022-11-02 21:12:40,404 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2022-11-02 21:12:40,416 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:12:40,430 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:12:40,430 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-02 21:12:40,431 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:12:40,558 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 21:12:40,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 209 transitions, 423 flow [2022-11-02 21:12:40,766 INFO L130 PetriNetUnfolder]: 0/208 cut-off events. [2022-11-02 21:12:40,767 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:12:40,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 208 events. 0/208 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 86 event pairs, 0 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-02 21:12:40,770 INFO L82 GeneralOperation]: Start removeDead. Operand has 213 places, 209 transitions, 423 flow [2022-11-02 21:12:40,778 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 212 places, 208 transitions, 419 flow [2022-11-02 21:12:40,792 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:12:40,800 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;@1cf2f820, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:12:40,801 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-02 21:12:40,814 INFO L130 PetriNetUnfolder]: 0/45 cut-off events. [2022-11-02 21:12:40,814 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:12:40,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:12:40,815 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] [2022-11-02 21:12:40,816 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-02 21:12:40,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:40,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1671993755, now seen corresponding path program 1 times [2022-11-02 21:12:40,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:40,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158455578] [2022-11-02 21:12:40,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:40,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:42,070 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 21:12:42,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:42,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158455578] [2022-11-02 21:12:42,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158455578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:42,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:42,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:12:42,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778866768] [2022-11-02 21:12:42,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:42,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:12:42,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:42,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:12:42,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:12:42,159 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 209 [2022-11-02 21:12:42,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 208 transitions, 419 flow. Second operand has 6 states, 6 states have (on average 125.5) internal successors, (753), 6 states have internal predecessors, (753), 0 states have call successors, (0), 0 states 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 21:12:42,182 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:12:42,182 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 209 [2022-11-02 21:12:42,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:12:43,166 INFO L130 PetriNetUnfolder]: 360/1271 cut-off events. [2022-11-02 21:12:43,167 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 21:12:43,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2079 conditions, 1271 events. 360/1271 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6589 event pairs, 360 based on Foata normal form. 0/1102 useless extension candidates. Maximal degree in co-relation 1926. Up to 794 conditions per place. [2022-11-02 21:12:43,188 INFO L137 encePairwiseOnDemand]: 197/209 looper letters, 73 selfloop transitions, 10 changer transitions 0/206 dead transitions. [2022-11-02 21:12:43,188 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 206 transitions, 581 flow [2022-11-02 21:12:43,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:12:43,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:12:43,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 829 transitions. [2022-11-02 21:12:43,224 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6610845295055822 [2022-11-02 21:12:43,225 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 829 transitions. [2022-11-02 21:12:43,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 829 transitions. [2022-11-02 21:12:43,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:12:43,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 829 transitions. [2022-11-02 21:12:43,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 138.16666666666666) internal successors, (829), 6 states have internal predecessors, (829), 0 states have call successors, (0), 0 states 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 21:12:43,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states 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 21:12:43,262 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states 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 21:12:43,265 INFO L175 Difference]: Start difference. First operand has 212 places, 208 transitions, 419 flow. Second operand 6 states and 829 transitions. [2022-11-02 21:12:43,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 206 transitions, 581 flow [2022-11-02 21:12:43,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 206 transitions, 580 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:12:43,280 INFO L231 Difference]: Finished difference. Result has 214 places, 206 transitions, 434 flow [2022-11-02 21:12:43,283 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=434, PETRI_PLACES=214, PETRI_TRANSITIONS=206} [2022-11-02 21:12:43,288 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, 2 predicate places. [2022-11-02 21:12:43,288 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 206 transitions, 434 flow [2022-11-02 21:12:43,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 125.5) internal successors, (753), 6 states have internal predecessors, (753), 0 states have call successors, (0), 0 states 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 21:12:43,291 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:12:43,291 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] [2022-11-02 21:12:43,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:12:43,292 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-02 21:12:43,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:43,295 INFO L85 PathProgramCache]: Analyzing trace with hash -43577554, now seen corresponding path program 1 times [2022-11-02 21:12:43,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:43,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777142770] [2022-11-02 21:12:43,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:43,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:43,879 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 21:12:43,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:43,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777142770] [2022-11-02 21:12:43,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777142770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:43,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:43,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:12:43,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687819160] [2022-11-02 21:12:43,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:43,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:12:43,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:43,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:12:43,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:12:43,887 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 209 [2022-11-02 21:12:43,889 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 206 transitions, 434 flow. Second operand has 6 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 0 states have call successors, (0), 0 states 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 21:12:43,889 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:12:43,889 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 209 [2022-11-02 21:12:43,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:12:44,405 INFO L130 PetriNetUnfolder]: 360/1269 cut-off events. [2022-11-02 21:12:44,406 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 21:12:44,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2085 conditions, 1269 events. 360/1269 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6591 event pairs, 360 based on Foata normal form. 0/1102 useless extension candidates. Maximal degree in co-relation 1968. Up to 792 conditions per place. [2022-11-02 21:12:44,415 INFO L137 encePairwiseOnDemand]: 197/209 looper letters, 71 selfloop transitions, 10 changer transitions 0/204 dead transitions. [2022-11-02 21:12:44,415 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 204 transitions, 592 flow [2022-11-02 21:12:44,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:12:44,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:12:44,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 827 transitions. [2022-11-02 21:12:44,419 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6594896331738437 [2022-11-02 21:12:44,419 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 827 transitions. [2022-11-02 21:12:44,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 827 transitions. [2022-11-02 21:12:44,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:12:44,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 827 transitions. [2022-11-02 21:12:44,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.83333333333334) internal successors, (827), 6 states have internal predecessors, (827), 0 states have call successors, (0), 0 states 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 21:12:44,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states 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 21:12:44,428 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states 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 21:12:44,428 INFO L175 Difference]: Start difference. First operand has 214 places, 206 transitions, 434 flow. Second operand 6 states and 827 transitions. [2022-11-02 21:12:44,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 204 transitions, 592 flow [2022-11-02 21:12:44,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 204 transitions, 572 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:12:44,436 INFO L231 Difference]: Finished difference. Result has 212 places, 204 transitions, 430 flow [2022-11-02 21:12:44,436 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=430, PETRI_PLACES=212, PETRI_TRANSITIONS=204} [2022-11-02 21:12:44,437 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, 0 predicate places. [2022-11-02 21:12:44,438 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 204 transitions, 430 flow [2022-11-02 21:12:44,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 0 states have call successors, (0), 0 states 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 21:12:44,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:12:44,439 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 21:12:44,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:12:44,440 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-02 21:12:44,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:44,441 INFO L85 PathProgramCache]: Analyzing trace with hash -479096798, now seen corresponding path program 1 times [2022-11-02 21:12:44,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:44,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977880970] [2022-11-02 21:12:44,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:44,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:44,507 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 21:12:44,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:44,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977880970] [2022-11-02 21:12:44,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977880970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:44,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:44,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:12:44,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689217240] [2022-11-02 21:12:44,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:44,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:12:44,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:44,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:12:44,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:44,513 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 209 [2022-11-02 21:12:44,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 204 transitions, 430 flow. Second operand has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 21:12:44,515 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:12:44,515 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 209 [2022-11-02 21:12:44,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:12:44,640 INFO L130 PetriNetUnfolder]: 18/354 cut-off events. [2022-11-02 21:12:44,640 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:12:44,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 354 events. 18/354 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 803 event pairs, 18 based on Foata normal form. 0/315 useless extension candidates. Maximal degree in co-relation 318. Up to 56 conditions per place. [2022-11-02 21:12:44,643 INFO L137 encePairwiseOnDemand]: 206/209 looper letters, 19 selfloop transitions, 2 changer transitions 0/203 dead transitions. [2022-11-02 21:12:44,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 203 transitions, 470 flow [2022-11-02 21:12:44,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:12:44,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:12:44,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 583 transitions. [2022-11-02 21:12:44,647 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9298245614035088 [2022-11-02 21:12:44,647 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 583 transitions. [2022-11-02 21:12:44,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 583 transitions. [2022-11-02 21:12:44,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:12:44,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 583 transitions. [2022-11-02 21:12:44,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 0 states 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 21:12:44,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states 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 21:12:44,654 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states 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 21:12:44,654 INFO L175 Difference]: Start difference. First operand has 212 places, 204 transitions, 430 flow. Second operand 3 states and 583 transitions. [2022-11-02 21:12:44,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 203 transitions, 470 flow [2022-11-02 21:12:44,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 203 transitions, 450 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:12:44,662 INFO L231 Difference]: Finished difference. Result has 208 places, 203 transitions, 412 flow [2022-11-02 21:12:44,663 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=412, PETRI_PLACES=208, PETRI_TRANSITIONS=203} [2022-11-02 21:12:44,664 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, -4 predicate places. [2022-11-02 21:12:44,664 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 203 transitions, 412 flow [2022-11-02 21:12:44,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 21:12:44,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:12:44,665 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, 1, 1, 1, 1] [2022-11-02 21:12:44,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:12:44,666 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-02 21:12:44,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:44,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1298097445, now seen corresponding path program 1 times [2022-11-02 21:12:44,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:44,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512220482] [2022-11-02 21:12:44,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:44,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:44,746 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 21:12:44,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:44,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512220482] [2022-11-02 21:12:44,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512220482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:44,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:44,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:12:44,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486524429] [2022-11-02 21:12:44,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:44,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:12:44,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:44,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:12:44,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:44,752 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 209 [2022-11-02 21:12:44,754 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 203 transitions, 412 flow. Second operand has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 0 states have call successors, (0), 0 states 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 21:12:44,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:12:44,754 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 209 [2022-11-02 21:12:44,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:12:44,851 INFO L130 PetriNetUnfolder]: 8/299 cut-off events. [2022-11-02 21:12:44,851 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 21:12:44,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 299 events. 8/299 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 484 event pairs, 8 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 265. Up to 27 conditions per place. [2022-11-02 21:12:44,854 INFO L137 encePairwiseOnDemand]: 203/209 looper letters, 12 selfloop transitions, 1 changer transitions 0/198 dead transitions. [2022-11-02 21:12:44,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 198 transitions, 428 flow [2022-11-02 21:12:44,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:12:44,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:12:44,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 588 transitions. [2022-11-02 21:12:44,857 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.937799043062201 [2022-11-02 21:12:44,857 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 588 transitions. [2022-11-02 21:12:44,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 588 transitions. [2022-11-02 21:12:44,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:12:44,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 588 transitions. [2022-11-02 21:12:44,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 0 states have call successors, (0), 0 states 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 21:12:44,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states 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 21:12:44,864 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states 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 21:12:44,864 INFO L175 Difference]: Start difference. First operand has 208 places, 203 transitions, 412 flow. Second operand 3 states and 588 transitions. [2022-11-02 21:12:44,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 198 transitions, 428 flow [2022-11-02 21:12:44,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 198 transitions, 424 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:12:44,870 INFO L231 Difference]: Finished difference. Result has 203 places, 198 transitions, 400 flow [2022-11-02 21:12:44,871 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=400, PETRI_PLACES=203, PETRI_TRANSITIONS=198} [2022-11-02 21:12:44,872 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, -9 predicate places. [2022-11-02 21:12:44,872 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 198 transitions, 400 flow [2022-11-02 21:12:44,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 0 states have call successors, (0), 0 states 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 21:12:44,873 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:12:44,873 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:44,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:12:44,874 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-02 21:12:44,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:44,875 INFO L85 PathProgramCache]: Analyzing trace with hash 380722992, now seen corresponding path program 1 times [2022-11-02 21:12:44,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:44,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402582805] [2022-11-02 21:12:44,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:44,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:45,613 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 21:12:45,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:45,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402582805] [2022-11-02 21:12:45,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402582805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:45,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:45,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:12:45,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455362017] [2022-11-02 21:12:45,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:45,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:12:45,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:45,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:12:45,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:12:45,620 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 209 [2022-11-02 21:12:45,621 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 198 transitions, 400 flow. Second operand has 6 states, 6 states have (on average 131.16666666666666) internal successors, (787), 6 states have internal predecessors, (787), 0 states have call successors, (0), 0 states 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 21:12:45,622 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:12:45,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 209 [2022-11-02 21:12:45,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:12:46,058 INFO L130 PetriNetUnfolder]: 416/1347 cut-off events. [2022-11-02 21:12:46,059 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:12:46,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2263 conditions, 1347 events. 416/1347 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6885 event pairs, 416 based on Foata normal form. 0/1201 useless extension candidates. Maximal degree in co-relation 2182. Up to 906 conditions per place. [2022-11-02 21:12:46,068 INFO L137 encePairwiseOnDemand]: 203/209 looper letters, 73 selfloop transitions, 5 changer transitions 0/197 dead transitions. [2022-11-02 21:12:46,068 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 197 transitions, 554 flow [2022-11-02 21:12:46,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:12:46,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:12:46,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 835 transitions. [2022-11-02 21:12:46,072 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6658692185007975 [2022-11-02 21:12:46,072 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 835 transitions. [2022-11-02 21:12:46,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 835 transitions. [2022-11-02 21:12:46,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:12:46,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 835 transitions. [2022-11-02 21:12:46,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.16666666666666) internal successors, (835), 6 states have internal predecessors, (835), 0 states have call successors, (0), 0 states 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 21:12:46,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states 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 21:12:46,080 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states 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 21:12:46,081 INFO L175 Difference]: Start difference. First operand has 203 places, 198 transitions, 400 flow. Second operand 6 states and 835 transitions. [2022-11-02 21:12:46,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 197 transitions, 554 flow [2022-11-02 21:12:46,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 197 transitions, 553 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:12:46,087 INFO L231 Difference]: Finished difference. Result has 206 places, 197 transitions, 407 flow [2022-11-02 21:12:46,088 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=407, PETRI_PLACES=206, PETRI_TRANSITIONS=197} [2022-11-02 21:12:46,089 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, -6 predicate places. [2022-11-02 21:12:46,089 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 197 transitions, 407 flow [2022-11-02 21:12:46,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.16666666666666) internal successors, (787), 6 states have internal predecessors, (787), 0 states have call successors, (0), 0 states 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 21:12:46,090 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:12:46,090 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:46,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:12:46,091 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-02 21:12:46,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:46,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1045888503, now seen corresponding path program 1 times [2022-11-02 21:12:46,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:46,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035645481] [2022-11-02 21:12:46,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:46,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:46,881 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 21:12:46,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:46,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035645481] [2022-11-02 21:12:46,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035645481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:46,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:46,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:12:46,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29430762] [2022-11-02 21:12:46,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:46,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:12:46,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:46,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:12:46,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:12:46,888 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 209 [2022-11-02 21:12:46,889 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 197 transitions, 407 flow. Second operand has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states 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 21:12:46,889 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:12:46,890 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 209 [2022-11-02 21:12:46,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:12:48,045 INFO L130 PetriNetUnfolder]: 748/2362 cut-off events. [2022-11-02 21:12:48,046 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 21:12:48,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3995 conditions, 2362 events. 748/2362 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 14935 event pairs, 75 based on Foata normal form. 0/2116 useless extension candidates. Maximal degree in co-relation 3915. Up to 781 conditions per place. [2022-11-02 21:12:48,061 INFO L137 encePairwiseOnDemand]: 181/209 looper letters, 161 selfloop transitions, 70 changer transitions 0/353 dead transitions. [2022-11-02 21:12:48,061 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 353 transitions, 1181 flow [2022-11-02 21:12:48,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:12:48,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:12:48,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1007 transitions. [2022-11-02 21:12:48,065 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.803030303030303 [2022-11-02 21:12:48,065 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1007 transitions. [2022-11-02 21:12:48,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1007 transitions. [2022-11-02 21:12:48,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:12:48,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1007 transitions. [2022-11-02 21:12:48,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states 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 21:12:48,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states 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 21:12:48,073 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states 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 21:12:48,074 INFO L175 Difference]: Start difference. First operand has 206 places, 197 transitions, 407 flow. Second operand 6 states and 1007 transitions. [2022-11-02 21:12:48,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 353 transitions, 1181 flow [2022-11-02 21:12:48,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 353 transitions, 1171 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:12:48,083 INFO L231 Difference]: Finished difference. Result has 210 places, 267 transitions, 875 flow [2022-11-02 21:12:48,084 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=875, PETRI_PLACES=210, PETRI_TRANSITIONS=267} [2022-11-02 21:12:48,087 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, -2 predicate places. [2022-11-02 21:12:48,087 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 267 transitions, 875 flow [2022-11-02 21:12:48,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states 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 21:12:48,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:12:48,088 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:48,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:12:48,089 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-02 21:12:48,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:48,090 INFO L85 PathProgramCache]: Analyzing trace with hash -677895904, now seen corresponding path program 1 times [2022-11-02 21:12:48,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:48,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133086431] [2022-11-02 21:12:48,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:48,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:48,862 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 21:12:48,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:48,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133086431] [2022-11-02 21:12:48,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133086431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:48,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:48,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:12:48,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827933912] [2022-11-02 21:12:48,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:48,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:12:48,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:48,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:12:48,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:12:48,868 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 209 [2022-11-02 21:12:48,869 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 267 transitions, 875 flow. Second operand has 6 states, 6 states have (on average 135.83333333333334) internal successors, (815), 6 states have internal predecessors, (815), 0 states have call successors, (0), 0 states 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 21:12:48,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:12:48,870 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 209 [2022-11-02 21:12:48,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:12:49,847 INFO L130 PetriNetUnfolder]: 836/2671 cut-off events. [2022-11-02 21:12:49,848 INFO L131 PetriNetUnfolder]: For 870/870 co-relation queries the response was YES. [2022-11-02 21:12:49,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5904 conditions, 2671 events. 836/2671 cut-off events. For 870/870 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 17273 event pairs, 379 based on Foata normal form. 0/2488 useless extension candidates. Maximal degree in co-relation 5822. Up to 1690 conditions per place. [2022-11-02 21:12:49,872 INFO L137 encePairwiseOnDemand]: 194/209 looper letters, 156 selfloop transitions, 48 changer transitions 0/327 dead transitions. [2022-11-02 21:12:49,873 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 327 transitions, 1499 flow [2022-11-02 21:12:49,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:12:49,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:12:49,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 907 transitions. [2022-11-02 21:12:49,877 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7232854864433812 [2022-11-02 21:12:49,877 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 907 transitions. [2022-11-02 21:12:49,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 907 transitions. [2022-11-02 21:12:49,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:12:49,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 907 transitions. [2022-11-02 21:12:49,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 151.16666666666666) internal successors, (907), 6 states have internal predecessors, (907), 0 states have call successors, (0), 0 states 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 21:12:49,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states 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 21:12:49,886 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states 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 21:12:49,886 INFO L175 Difference]: Start difference. First operand has 210 places, 267 transitions, 875 flow. Second operand 6 states and 907 transitions. [2022-11-02 21:12:49,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 327 transitions, 1499 flow [2022-11-02 21:12:49,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 327 transitions, 1499 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:12:49,915 INFO L231 Difference]: Finished difference. Result has 220 places, 310 transitions, 1263 flow [2022-11-02 21:12:49,916 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=875, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1263, PETRI_PLACES=220, PETRI_TRANSITIONS=310} [2022-11-02 21:12:49,917 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, 8 predicate places. [2022-11-02 21:12:49,917 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 310 transitions, 1263 flow [2022-11-02 21:12:49,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.83333333333334) internal successors, (815), 6 states have internal predecessors, (815), 0 states have call successors, (0), 0 states 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 21:12:49,920 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:12:49,920 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:49,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 21:12:49,921 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-02 21:12:49,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:49,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1148431168, now seen corresponding path program 1 times [2022-11-02 21:12:49,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:49,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703394837] [2022-11-02 21:12:49,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:49,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:50,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:50,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:50,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703394837] [2022-11-02 21:12:50,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703394837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:50,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:50,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:12:50,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423127752] [2022-11-02 21:12:50,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:50,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:12:50,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:50,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:12:50,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:12:50,767 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 209 [2022-11-02 21:12:50,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 310 transitions, 1263 flow. Second operand has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states 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 21:12:50,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:12:50,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 209 [2022-11-02 21:12:50,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:12:52,087 INFO L130 PetriNetUnfolder]: 1029/3398 cut-off events. [2022-11-02 21:12:52,087 INFO L131 PetriNetUnfolder]: For 2057/2098 co-relation queries the response was YES. [2022-11-02 21:12:52,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8412 conditions, 3398 events. 1029/3398 cut-off events. For 2057/2098 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 24172 event pairs, 196 based on Foata normal form. 0/3263 useless extension candidates. Maximal degree in co-relation 8322. Up to 1659 conditions per place. [2022-11-02 21:12:52,113 INFO L137 encePairwiseOnDemand]: 187/209 looper letters, 262 selfloop transitions, 135 changer transitions 4/525 dead transitions. [2022-11-02 21:12:52,113 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 525 transitions, 3157 flow [2022-11-02 21:12:52,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:12:52,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:12:52,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 974 transitions. [2022-11-02 21:12:52,116 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7767145135566188 [2022-11-02 21:12:52,117 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 974 transitions. [2022-11-02 21:12:52,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 974 transitions. [2022-11-02 21:12:52,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:12:52,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 974 transitions. [2022-11-02 21:12:52,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.33333333333334) internal successors, (974), 6 states have internal predecessors, (974), 0 states have call successors, (0), 0 states 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 21:12:52,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states 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 21:12:52,124 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states 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 21:12:52,124 INFO L175 Difference]: Start difference. First operand has 220 places, 310 transitions, 1263 flow. Second operand 6 states and 974 transitions. [2022-11-02 21:12:52,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 525 transitions, 3157 flow [2022-11-02 21:12:52,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 525 transitions, 3139 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-02 21:12:52,148 INFO L231 Difference]: Finished difference. Result has 230 places, 440 transitions, 2603 flow [2022-11-02 21:12:52,149 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=1245, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2603, PETRI_PLACES=230, PETRI_TRANSITIONS=440} [2022-11-02 21:12:52,149 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, 18 predicate places. [2022-11-02 21:12:52,150 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 440 transitions, 2603 flow [2022-11-02 21:12:52,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states 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 21:12:52,150 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:12:52,151 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:52,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:12:52,151 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-02 21:12:52,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:52,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1966240912, now seen corresponding path program 1 times [2022-11-02 21:12:52,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:52,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875952656] [2022-11-02 21:12:52,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:52,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:53,302 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 21:12:53,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:53,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875952656] [2022-11-02 21:12:53,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875952656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:53,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:53,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:12:53,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781264798] [2022-11-02 21:12:53,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:53,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:12:53,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:53,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:12:53,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:12:53,308 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 209 [2022-11-02 21:12:53,311 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 440 transitions, 2603 flow. Second operand has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states 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 21:12:53,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:12:53,312 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 209 [2022-11-02 21:12:53,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:12:58,103 INFO L130 PetriNetUnfolder]: 1672/5541 cut-off events. [2022-11-02 21:12:58,103 INFO L131 PetriNetUnfolder]: For 6163/6245 co-relation queries the response was YES. [2022-11-02 21:12:58,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15830 conditions, 5541 events. 1672/5541 cut-off events. For 6163/6245 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 45612 event pairs, 286 based on Foata normal form. 26/5421 useless extension candidates. Maximal degree in co-relation 15728. Up to 1193 conditions per place. [2022-11-02 21:12:58,257 INFO L137 encePairwiseOnDemand]: 172/209 looper letters, 620 selfloop transitions, 192 changer transitions 6/923 dead transitions. [2022-11-02 21:12:58,261 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 923 transitions, 7287 flow [2022-11-02 21:12:58,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 21:12:58,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 21:12:58,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2670 transitions. [2022-11-02 21:12:58,271 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.638755980861244 [2022-11-02 21:12:58,271 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2670 transitions. [2022-11-02 21:12:58,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2670 transitions. [2022-11-02 21:12:58,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:12:58,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2670 transitions. [2022-11-02 21:12:58,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 133.5) internal successors, (2670), 20 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states 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 21:12:58,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 209.0) internal successors, (4389), 21 states have internal predecessors, (4389), 0 states have call successors, (0), 0 states 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 21:12:58,294 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 209.0) internal successors, (4389), 21 states have internal predecessors, (4389), 0 states have call successors, (0), 0 states 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 21:12:58,294 INFO L175 Difference]: Start difference. First operand has 230 places, 440 transitions, 2603 flow. Second operand 20 states and 2670 transitions. [2022-11-02 21:12:58,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 923 transitions, 7287 flow [2022-11-02 21:12:58,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 923 transitions, 7215 flow, removed 36 selfloop flow, removed 0 redundant places. [2022-11-02 21:12:58,432 INFO L231 Difference]: Finished difference. Result has 265 places, 537 transitions, 4261 flow [2022-11-02 21:12:58,433 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2567, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4261, PETRI_PLACES=265, PETRI_TRANSITIONS=537} [2022-11-02 21:12:58,436 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, 53 predicate places. [2022-11-02 21:12:58,436 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 537 transitions, 4261 flow [2022-11-02 21:12:58,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states 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 21:12:58,438 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:12:58,438 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:58,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:12:58,439 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-02 21:12:58,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:58,439 INFO L85 PathProgramCache]: Analyzing trace with hash -481820612, now seen corresponding path program 2 times [2022-11-02 21:12:58,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:58,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872811112] [2022-11-02 21:12:58,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:58,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:59,369 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 21:12:59,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:59,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872811112] [2022-11-02 21:12:59,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872811112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:59,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:59,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:12:59,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29055022] [2022-11-02 21:12:59,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:59,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:12:59,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:59,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:12:59,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:12:59,373 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 209 [2022-11-02 21:12:59,375 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 537 transitions, 4261 flow. Second operand has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states 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 21:12:59,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:12:59,376 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 209 [2022-11-02 21:12:59,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:13:03,949 INFO L130 PetriNetUnfolder]: 1848/6139 cut-off events. [2022-11-02 21:13:03,950 INFO L131 PetriNetUnfolder]: For 10510/10665 co-relation queries the response was YES. [2022-11-02 21:13:04,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19669 conditions, 6139 events. 1848/6139 cut-off events. For 10510/10665 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 51200 event pairs, 277 based on Foata normal form. 44/5991 useless extension candidates. Maximal degree in co-relation 19547. Up to 2087 conditions per place. [2022-11-02 21:13:04,127 INFO L137 encePairwiseOnDemand]: 183/209 looper letters, 722 selfloop transitions, 141 changer transitions 6/974 dead transitions. [2022-11-02 21:13:04,127 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 974 transitions, 8887 flow [2022-11-02 21:13:04,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-02 21:13:04,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-02 21:13:04,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3650 transitions. [2022-11-02 21:13:04,138 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6022108562943409 [2022-11-02 21:13:04,139 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 3650 transitions. [2022-11-02 21:13:04,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 3650 transitions. [2022-11-02 21:13:04,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:13:04,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 3650 transitions. [2022-11-02 21:13:04,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 125.86206896551724) internal successors, (3650), 29 states have internal predecessors, (3650), 0 states have call successors, (0), 0 states 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 21:13:04,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 209.0) internal successors, (6270), 30 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states 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 21:13:04,169 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 209.0) internal successors, (6270), 30 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states 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 21:13:04,169 INFO L175 Difference]: Start difference. First operand has 265 places, 537 transitions, 4261 flow. Second operand 29 states and 3650 transitions. [2022-11-02 21:13:04,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 974 transitions, 8887 flow [2022-11-02 21:13:04,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 974 transitions, 8877 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-11-02 21:13:04,301 INFO L231 Difference]: Finished difference. Result has 299 places, 604 transitions, 5263 flow [2022-11-02 21:13:04,302 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=4251, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=5263, PETRI_PLACES=299, PETRI_TRANSITIONS=604} [2022-11-02 21:13:04,303 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, 87 predicate places. [2022-11-02 21:13:04,304 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 604 transitions, 5263 flow [2022-11-02 21:13:04,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states 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 21:13:04,305 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:13:04,305 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:04,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:13:04,306 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-02 21:13:04,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:04,307 INFO L85 PathProgramCache]: Analyzing trace with hash 224396076, now seen corresponding path program 3 times [2022-11-02 21:13:04,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:13:04,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284010995] [2022-11-02 21:13:04,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:04,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:13:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:05,379 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 21:13:05,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:13:05,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284010995] [2022-11-02 21:13:05,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284010995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:05,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:05,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:05,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308260205] [2022-11-02 21:13:05,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:05,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:13:05,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:13:05,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:13:05,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:13:05,385 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 209 [2022-11-02 21:13:05,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 604 transitions, 5263 flow. Second operand has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states 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 21:13:05,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:13:05,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 209 [2022-11-02 21:13:05,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:13:11,491 INFO L130 PetriNetUnfolder]: 2603/8753 cut-off events. [2022-11-02 21:13:11,491 INFO L131 PetriNetUnfolder]: For 21376/21555 co-relation queries the response was YES. [2022-11-02 21:13:11,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30105 conditions, 8753 events. 2603/8753 cut-off events. For 21376/21555 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 81819 event pairs, 428 based on Foata normal form. 71/8585 useless extension candidates. Maximal degree in co-relation 29973. Up to 1724 conditions per place. [2022-11-02 21:13:11,611 INFO L137 encePairwiseOnDemand]: 176/209 looper letters, 770 selfloop transitions, 305 changer transitions 6/1186 dead transitions. [2022-11-02 21:13:11,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 1186 transitions, 12043 flow [2022-11-02 21:13:11,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-02 21:13:11,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-02 21:13:11,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3833 transitions. [2022-11-02 21:13:11,623 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6113237639553429 [2022-11-02 21:13:11,623 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 3833 transitions. [2022-11-02 21:13:11,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 3833 transitions. [2022-11-02 21:13:11,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:13:11,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 3833 transitions. [2022-11-02 21:13:11,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 127.76666666666667) internal successors, (3833), 30 states have internal predecessors, (3833), 0 states have call successors, (0), 0 states 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 21:13:11,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 209.0) internal successors, (6479), 31 states have internal predecessors, (6479), 0 states have call successors, (0), 0 states 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 21:13:11,652 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 209.0) internal successors, (6479), 31 states have internal predecessors, (6479), 0 states have call successors, (0), 0 states 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 21:13:11,653 INFO L175 Difference]: Start difference. First operand has 299 places, 604 transitions, 5263 flow. Second operand 30 states and 3833 transitions. [2022-11-02 21:13:11,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 1186 transitions, 12043 flow [2022-11-02 21:13:11,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 1186 transitions, 11963 flow, removed 38 selfloop flow, removed 2 redundant places. [2022-11-02 21:13:11,902 INFO L231 Difference]: Finished difference. Result has 343 places, 741 transitions, 8340 flow [2022-11-02 21:13:11,903 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=5213, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=604, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=168, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=8340, PETRI_PLACES=343, PETRI_TRANSITIONS=741} [2022-11-02 21:13:11,904 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, 131 predicate places. [2022-11-02 21:13:11,904 INFO L495 AbstractCegarLoop]: Abstraction has has 343 places, 741 transitions, 8340 flow [2022-11-02 21:13:11,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states 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 21:13:11,905 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:13:11,905 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:11,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 21:13:11,906 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-02 21:13:11,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:11,907 INFO L85 PathProgramCache]: Analyzing trace with hash -842220046, now seen corresponding path program 1 times [2022-11-02 21:13:11,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:13:11,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139609388] [2022-11-02 21:13:11,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:11,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:13:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:12,979 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 21:13:12,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:13:12,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139609388] [2022-11-02 21:13:12,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139609388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:12,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:12,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:12,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686978982] [2022-11-02 21:13:12,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:12,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:13:12,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:13:12,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:13:12,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:13:12,984 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 209 [2022-11-02 21:13:12,986 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 741 transitions, 8340 flow. Second operand has 13 states, 13 states have (on average 113.07692307692308) internal successors, (1470), 13 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states 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 21:13:12,986 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:13:12,986 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 209 [2022-11-02 21:13:12,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:13:17,796 INFO L130 PetriNetUnfolder]: 2692/8882 cut-off events. [2022-11-02 21:13:17,796 INFO L131 PetriNetUnfolder]: For 33157/33316 co-relation queries the response was YES. [2022-11-02 21:13:17,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33355 conditions, 8882 events. 2692/8882 cut-off events. For 33157/33316 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 82800 event pairs, 527 based on Foata normal form. 58/8673 useless extension candidates. Maximal degree in co-relation 33275. Up to 4333 conditions per place. [2022-11-02 21:13:17,913 INFO L137 encePairwiseOnDemand]: 189/209 looper letters, 693 selfloop transitions, 188 changer transitions 2/985 dead transitions. [2022-11-02 21:13:17,913 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 985 transitions, 12437 flow [2022-11-02 21:13:17,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-02 21:13:17,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-02 21:13:17,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2919 transitions. [2022-11-02 21:13:17,920 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5819377990430622 [2022-11-02 21:13:17,921 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2919 transitions. [2022-11-02 21:13:17,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2919 transitions. [2022-11-02 21:13:17,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:13:17,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2919 transitions. [2022-11-02 21:13:17,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 121.625) internal successors, (2919), 24 states have internal predecessors, (2919), 0 states have call successors, (0), 0 states 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 21:13:17,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 209.0) internal successors, (5225), 25 states have internal predecessors, (5225), 0 states have call successors, (0), 0 states 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 21:13:17,945 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 209.0) internal successors, (5225), 25 states have internal predecessors, (5225), 0 states have call successors, (0), 0 states 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 21:13:17,945 INFO L175 Difference]: Start difference. First operand has 343 places, 741 transitions, 8340 flow. Second operand 24 states and 2919 transitions. [2022-11-02 21:13:17,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 985 transitions, 12437 flow [2022-11-02 21:13:18,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 985 transitions, 12319 flow, removed 39 selfloop flow, removed 10 redundant places. [2022-11-02 21:13:18,337 INFO L231 Difference]: Finished difference. Result has 361 places, 783 transitions, 9197 flow [2022-11-02 21:13:18,338 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=8222, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=741, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=585, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=9197, PETRI_PLACES=361, PETRI_TRANSITIONS=783} [2022-11-02 21:13:18,341 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, 149 predicate places. [2022-11-02 21:13:18,341 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 783 transitions, 9197 flow [2022-11-02 21:13:18,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 113.07692307692308) internal successors, (1470), 13 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states 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 21:13:18,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:13:18,343 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:18,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 21:13:18,343 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-02 21:13:18,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:18,344 INFO L85 PathProgramCache]: Analyzing trace with hash -444993970, now seen corresponding path program 4 times [2022-11-02 21:13:18,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:13:18,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207776656] [2022-11-02 21:13:18,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:18,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:13:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:19,390 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 21:13:19,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:13:19,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207776656] [2022-11-02 21:13:19,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207776656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:19,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:19,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:19,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272925450] [2022-11-02 21:13:19,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:19,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:13:19,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:13:19,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:13:19,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:13:19,396 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 209 [2022-11-02 21:13:19,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 783 transitions, 9197 flow. Second operand has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states 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 21:13:19,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:13:19,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 209 [2022-11-02 21:13:19,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:13:26,448 INFO L130 PetriNetUnfolder]: 3715/12586 cut-off events. [2022-11-02 21:13:26,448 INFO L131 PetriNetUnfolder]: For 56170/56486 co-relation queries the response was YES. [2022-11-02 21:13:26,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49765 conditions, 12586 events. 3715/12586 cut-off events. For 56170/56486 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 130270 event pairs, 856 based on Foata normal form. 126/12394 useless extension candidates. Maximal degree in co-relation 49681. Up to 3764 conditions per place. [2022-11-02 21:13:26,772 INFO L137 encePairwiseOnDemand]: 177/209 looper letters, 723 selfloop transitions, 413 changer transitions 3/1247 dead transitions. [2022-11-02 21:13:26,773 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 1247 transitions, 16755 flow [2022-11-02 21:13:26,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-02 21:13:26,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-02 21:13:26,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2650 transitions. [2022-11-02 21:13:26,779 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6037821827295512 [2022-11-02 21:13:26,779 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2650 transitions. [2022-11-02 21:13:26,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2650 transitions. [2022-11-02 21:13:26,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:13:26,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2650 transitions. [2022-11-02 21:13:26,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 126.19047619047619) internal successors, (2650), 21 states have internal predecessors, (2650), 0 states have call successors, (0), 0 states 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 21:13:26,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 209.0) internal successors, (4598), 22 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states 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 21:13:26,796 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 209.0) internal successors, (4598), 22 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states 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 21:13:26,796 INFO L175 Difference]: Start difference. First operand has 361 places, 783 transitions, 9197 flow. Second operand 21 states and 2650 transitions. [2022-11-02 21:13:26,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 1247 transitions, 16755 flow [2022-11-02 21:13:27,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 1247 transitions, 16555 flow, removed 22 selfloop flow, removed 12 redundant places. [2022-11-02 21:13:27,454 INFO L231 Difference]: Finished difference. Result has 383 places, 956 transitions, 13691 flow [2022-11-02 21:13:27,456 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=9082, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=783, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=240, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=13691, PETRI_PLACES=383, PETRI_TRANSITIONS=956} [2022-11-02 21:13:27,457 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, 171 predicate places. [2022-11-02 21:13:27,457 INFO L495 AbstractCegarLoop]: Abstraction has has 383 places, 956 transitions, 13691 flow [2022-11-02 21:13:27,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states 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 21:13:27,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:13:27,458 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:27,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 21:13:27,459 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-02 21:13:27,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:27,460 INFO L85 PathProgramCache]: Analyzing trace with hash 446278598, now seen corresponding path program 5 times [2022-11-02 21:13:27,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:13:27,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311365809] [2022-11-02 21:13:27,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:27,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:13:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:28,583 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 21:13:28,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:13:28,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311365809] [2022-11-02 21:13:28,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311365809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:28,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:28,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:28,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289756725] [2022-11-02 21:13:28,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:28,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:13:28,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:13:28,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:13:28,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:13:28,588 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 209 [2022-11-02 21:13:28,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 956 transitions, 13691 flow. Second operand has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states 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 21:13:28,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:13:28,591 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 209 [2022-11-02 21:13:28,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:13:38,782 INFO L130 PetriNetUnfolder]: 4983/16878 cut-off events. [2022-11-02 21:13:38,783 INFO L131 PetriNetUnfolder]: For 95536/96056 co-relation queries the response was YES. [2022-11-02 21:13:39,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70263 conditions, 16878 events. 4983/16878 cut-off events. For 95536/96056 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 186147 event pairs, 935 based on Foata normal form. 224/16690 useless extension candidates. Maximal degree in co-relation 70160. Up to 3672 conditions per place. [2022-11-02 21:13:39,080 INFO L137 encePairwiseOnDemand]: 172/209 looper letters, 860 selfloop transitions, 599 changer transitions 4/1571 dead transitions. [2022-11-02 21:13:39,080 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 1571 transitions, 23904 flow [2022-11-02 21:13:39,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-02 21:13:39,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-11-02 21:13:39,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3212 transitions. [2022-11-02 21:13:39,089 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6147368421052631 [2022-11-02 21:13:39,089 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3212 transitions. [2022-11-02 21:13:39,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3212 transitions. [2022-11-02 21:13:39,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:13:39,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3212 transitions. [2022-11-02 21:13:39,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 128.48) internal successors, (3212), 25 states have internal predecessors, (3212), 0 states have call successors, (0), 0 states 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 21:13:39,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 209.0) internal successors, (5434), 26 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states 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 21:13:39,112 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 209.0) internal successors, (5434), 26 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states 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 21:13:39,112 INFO L175 Difference]: Start difference. First operand has 383 places, 956 transitions, 13691 flow. Second operand 25 states and 3212 transitions. [2022-11-02 21:13:39,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 1571 transitions, 23904 flow [2022-11-02 21:13:40,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 1571 transitions, 23822 flow, removed 39 selfloop flow, removed 2 redundant places. [2022-11-02 21:13:40,217 INFO L231 Difference]: Finished difference. Result has 426 places, 1161 transitions, 20075 flow [2022-11-02 21:13:40,219 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=13647, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=956, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=400, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=20075, PETRI_PLACES=426, PETRI_TRANSITIONS=1161} [2022-11-02 21:13:40,220 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, 214 predicate places. [2022-11-02 21:13:40,220 INFO L495 AbstractCegarLoop]: Abstraction has has 426 places, 1161 transitions, 20075 flow [2022-11-02 21:13:40,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states 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 21:13:40,221 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:13:40,221 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:40,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 21:13:40,222 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-02 21:13:40,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:40,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1147946064, now seen corresponding path program 6 times [2022-11-02 21:13:40,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:13:40,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122650756] [2022-11-02 21:13:40,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:40,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:13:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:41,226 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 21:13:41,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:13:41,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122650756] [2022-11-02 21:13:41,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122650756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:41,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:41,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:41,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590035642] [2022-11-02 21:13:41,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:41,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:13:41,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:13:41,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:13:41,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:13:41,232 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 209 [2022-11-02 21:13:41,235 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 1161 transitions, 20075 flow. Second operand has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states 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 21:13:41,235 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:13:41,236 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 209 [2022-11-02 21:13:41,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:13:57,496 INFO L130 PetriNetUnfolder]: 6590/22572 cut-off events. [2022-11-02 21:13:57,496 INFO L131 PetriNetUnfolder]: For 162899/163429 co-relation queries the response was YES. [2022-11-02 21:13:57,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98412 conditions, 22572 events. 6590/22572 cut-off events. For 162899/163429 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 267138 event pairs, 1269 based on Foata normal form. 243/22288 useless extension candidates. Maximal degree in co-relation 98281. Up to 5407 conditions per place. [2022-11-02 21:13:58,019 INFO L137 encePairwiseOnDemand]: 176/209 looper letters, 913 selfloop transitions, 781 changer transitions 6/1808 dead transitions. [2022-11-02 21:13:58,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 1808 transitions, 31782 flow [2022-11-02 21:13:58,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-02 21:13:58,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-02 21:13:58,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3599 transitions. [2022-11-02 21:13:58,027 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6150034176349966 [2022-11-02 21:13:58,028 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3599 transitions. [2022-11-02 21:13:58,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3599 transitions. [2022-11-02 21:13:58,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:13:58,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3599 transitions. [2022-11-02 21:13:58,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 128.53571428571428) internal successors, (3599), 28 states have internal predecessors, (3599), 0 states have call successors, (0), 0 states 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 21:13:58,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 209.0) internal successors, (6061), 29 states have internal predecessors, (6061), 0 states have call successors, (0), 0 states 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 21:13:58,052 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 209.0) internal successors, (6061), 29 states have internal predecessors, (6061), 0 states have call successors, (0), 0 states 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 21:13:58,052 INFO L175 Difference]: Start difference. First operand has 426 places, 1161 transitions, 20075 flow. Second operand 28 states and 3599 transitions. [2022-11-02 21:13:58,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 1808 transitions, 31782 flow [2022-11-02 21:14:00,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 1808 transitions, 31726 flow, removed 26 selfloop flow, removed 2 redundant places. [2022-11-02 21:14:01,047 INFO L231 Difference]: Finished difference. Result has 462 places, 1359 transitions, 27958 flow [2022-11-02 21:14:01,049 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=20027, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=583, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=27958, PETRI_PLACES=462, PETRI_TRANSITIONS=1359} [2022-11-02 21:14:01,050 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, 250 predicate places. [2022-11-02 21:14:01,050 INFO L495 AbstractCegarLoop]: Abstraction has has 462 places, 1359 transitions, 27958 flow [2022-11-02 21:14:01,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states 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 21:14:01,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:14:01,052 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:14:01,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 21:14:01,052 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-02 21:14:01,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:14:01,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1541026452, now seen corresponding path program 7 times [2022-11-02 21:14:01,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:14:01,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070294530] [2022-11-02 21:14:01,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:14:01,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:14:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:02,202 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 21:14:02,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:14:02,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070294530] [2022-11-02 21:14:02,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070294530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:14:02,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:14:02,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:14:02,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300803100] [2022-11-02 21:14:02,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:14:02,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:14:02,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:14:02,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:14:02,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:14:02,206 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 209 [2022-11-02 21:14:02,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 1359 transitions, 27958 flow. Second operand has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states 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 21:14:02,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:14:02,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 209 [2022-11-02 21:14:02,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:14:23,159 INFO L130 PetriNetUnfolder]: 7356/25175 cut-off events. [2022-11-02 21:14:23,159 INFO L131 PetriNetUnfolder]: For 232456/233228 co-relation queries the response was YES. [2022-11-02 21:14:23,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116298 conditions, 25175 events. 7356/25175 cut-off events. For 232456/233228 co-relation queries the response was YES. Maximal size of possible extension queue 800. Compared 304740 event pairs, 1421 based on Foata normal form. 326/24899 useless extension candidates. Maximal degree in co-relation 116158. Up to 5182 conditions per place. [2022-11-02 21:14:23,814 INFO L137 encePairwiseOnDemand]: 176/209 looper letters, 1006 selfloop transitions, 847 changer transitions 6/1967 dead transitions. [2022-11-02 21:14:23,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 493 places, 1967 transitions, 38992 flow [2022-11-02 21:14:23,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-02 21:14:23,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-11-02 21:14:23,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 4075 transitions. [2022-11-02 21:14:23,823 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6093002392344498 [2022-11-02 21:14:23,823 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 4075 transitions. [2022-11-02 21:14:23,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 4075 transitions. [2022-11-02 21:14:23,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:14:23,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 4075 transitions. [2022-11-02 21:14:23,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 127.34375) internal successors, (4075), 32 states have internal predecessors, (4075), 0 states have call successors, (0), 0 states 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 21:14:23,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 209.0) internal successors, (6897), 33 states have internal predecessors, (6897), 0 states have call successors, (0), 0 states 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 21:14:23,849 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 209.0) internal successors, (6897), 33 states have internal predecessors, (6897), 0 states have call successors, (0), 0 states 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 21:14:23,850 INFO L175 Difference]: Start difference. First operand has 462 places, 1359 transitions, 27958 flow. Second operand 32 states and 4075 transitions. [2022-11-02 21:14:23,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 493 places, 1967 transitions, 38992 flow [2022-11-02 21:14:27,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 1967 transitions, 38804 flow, removed 13 selfloop flow, removed 15 redundant places. [2022-11-02 21:14:27,842 INFO L231 Difference]: Finished difference. Result has 493 places, 1492 transitions, 34748 flow [2022-11-02 21:14:27,843 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=27773, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=715, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=34748, PETRI_PLACES=493, PETRI_TRANSITIONS=1492} [2022-11-02 21:14:27,843 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, 281 predicate places. [2022-11-02 21:14:27,843 INFO L495 AbstractCegarLoop]: Abstraction has has 493 places, 1492 transitions, 34748 flow [2022-11-02 21:14:27,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states 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 21:14:27,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:14:27,845 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:14:27,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 21:14:27,845 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-02 21:14:27,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:14:27,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1450649388, now seen corresponding path program 8 times [2022-11-02 21:14:27,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:14:27,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089113459] [2022-11-02 21:14:27,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:14:27,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:14:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:28,616 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 21:14:28,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:14:28,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089113459] [2022-11-02 21:14:28,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089113459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:14:28,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:14:28,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:14:28,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513029982] [2022-11-02 21:14:28,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:14:28,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:14:28,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:14:28,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:14:28,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:14:28,621 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 209 [2022-11-02 21:14:28,622 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 1492 transitions, 34748 flow. Second operand has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states 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 21:14:28,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:14:28,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 209 [2022-11-02 21:14:28,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:14:54,152 INFO L130 PetriNetUnfolder]: 7956/27030 cut-off events. [2022-11-02 21:14:54,152 INFO L131 PetriNetUnfolder]: For 312702/313407 co-relation queries the response was YES. [2022-11-02 21:14:54,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132672 conditions, 27030 events. 7956/27030 cut-off events. For 312702/313407 co-relation queries the response was YES. Maximal size of possible extension queue 861. Compared 330940 event pairs, 1469 based on Foata normal form. 299/26688 useless extension candidates. Maximal degree in co-relation 132517. Up to 6762 conditions per place. [2022-11-02 21:14:54,953 INFO L137 encePairwiseOnDemand]: 176/209 looper letters, 1068 selfloop transitions, 900 changer transitions 4/2080 dead transitions. [2022-11-02 21:14:54,954 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 2080 transitions, 46358 flow [2022-11-02 21:14:54,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-02 21:14:54,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-11-02 21:14:54,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3465 transitions. [2022-11-02 21:14:54,969 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6140350877192983 [2022-11-02 21:14:54,969 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 3465 transitions. [2022-11-02 21:14:54,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 3465 transitions. [2022-11-02 21:14:54,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:14:54,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 3465 transitions. [2022-11-02 21:14:54,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 128.33333333333334) internal successors, (3465), 27 states have internal predecessors, (3465), 0 states have call successors, (0), 0 states 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 21:14:54,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 209.0) internal successors, (5852), 28 states have internal predecessors, (5852), 0 states have call successors, (0), 0 states 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 21:14:54,991 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 209.0) internal successors, (5852), 28 states have internal predecessors, (5852), 0 states have call successors, (0), 0 states 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 21:14:54,992 INFO L175 Difference]: Start difference. First operand has 493 places, 1492 transitions, 34748 flow. Second operand 27 states and 3465 transitions. [2022-11-02 21:14:54,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 2080 transitions, 46358 flow [2022-11-02 21:15:01,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 503 places, 2080 transitions, 46101 flow, removed 26 selfloop flow, removed 16 redundant places. [2022-11-02 21:15:01,091 INFO L231 Difference]: Finished difference. Result has 513 places, 1614 transitions, 41483 flow [2022-11-02 21:15:01,093 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=34501, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1492, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=782, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=614, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=41483, PETRI_PLACES=513, PETRI_TRANSITIONS=1614} [2022-11-02 21:15:01,093 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, 301 predicate places. [2022-11-02 21:15:01,093 INFO L495 AbstractCegarLoop]: Abstraction has has 513 places, 1614 transitions, 41483 flow [2022-11-02 21:15:01,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states 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 21:15:01,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:15:01,094 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:15:01,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 21:15:01,095 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-02 21:15:01,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:15:01,095 INFO L85 PathProgramCache]: Analyzing trace with hash 937433246, now seen corresponding path program 9 times [2022-11-02 21:15:01,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:15:01,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623557009] [2022-11-02 21:15:01,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:15:01,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:15:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:01,764 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 21:15:01,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:15:01,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623557009] [2022-11-02 21:15:01,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623557009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:15:01,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:15:01,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:15:01,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720196045] [2022-11-02 21:15:01,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:15:01,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:15:01,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:15:01,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:15:01,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:15:01,768 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 209 [2022-11-02 21:15:01,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 1614 transitions, 41483 flow. Second operand has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states 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 21:15:01,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:15:01,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 209 [2022-11-02 21:15:01,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand