./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN --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 b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b --- 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-6b4ec56 [2022-11-20 10:35:07,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:35:07,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:35:07,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:35:07,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:35:07,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:35:07,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:35:07,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:35:07,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:35:07,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:35:07,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:35:07,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:35:07,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:35:07,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:35:07,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:35:07,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:35:07,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:35:07,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:35:07,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:35:07,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:35:07,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:35:07,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:35:07,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:35:07,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:35:07,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:35:07,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:35:07,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:35:07,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:35:07,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:35:07,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:35:07,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:35:07,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:35:07,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:35:07,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:35:07,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:35:07,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:35:07,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:35:07,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:35:07,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:35:07,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:35:07,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:35:07,899 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 10:35:07,940 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:35:07,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:35:07,941 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:35:07,941 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:35:07,942 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:35:07,942 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:35:07,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:35:07,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:35:07,944 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:35:07,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:35:07,945 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:35:07,945 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:35:07,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:35:07,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:35:07,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:35:07,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:35:07,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:35:07,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:35:07,947 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 10:35:07,947 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:35:07,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:35:07,948 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:35:07,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:35:07,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:35:07,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:35:07,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:35:07,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:35:07,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:35:07,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:35:07,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:35:07,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:35:07,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:35:07,951 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:35:07,951 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:35:07,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:35:07,952 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_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b [2022-11-20 10:35:08,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:35:08,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:35:08,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:35:08,245 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:35:08,246 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:35:08,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2022-11-20 10:35:11,405 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:35:11,709 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:35:11,710 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2022-11-20 10:35:11,744 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/data/87d1b9f64/63ffa4832ce448059afe0031ee9d0d03/FLAGc8b79de36 [2022-11-20 10:35:11,765 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/data/87d1b9f64/63ffa4832ce448059afe0031ee9d0d03 [2022-11-20 10:35:11,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:35:11,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:35:11,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:35:11,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:35:11,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:35:11,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:35:11" (1/1) ... [2022-11-20 10:35:11,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f3a9a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:11, skipping insertion in model container [2022-11-20 10:35:11,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:35:11" (1/1) ... [2022-11-20 10:35:11,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:35:11,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:35:12,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:35:12,626 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:35:12,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:35:12,834 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:35:12,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12 WrapperNode [2022-11-20 10:35:12,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:35:12,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:35:12,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:35:12,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:35:12,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:12,879 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:12,948 INFO L138 Inliner]: procedures = 370, calls = 37, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 353 [2022-11-20 10:35:12,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:35:12,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:35:12,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:35:12,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:35:12,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:12,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:12,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:12,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:13,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:13,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:13,075 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:13,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:13,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:35:13,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:35:13,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:35:13,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:35:13,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:13,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:35:13,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:13,119 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:13,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:35:13,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:35:13,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:35:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:35:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:35:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:35:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 10:35:13,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:35:13,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:35:13,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:35:13,163 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 10:35:13,164 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 10:35:13,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:35:13,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:35:13,166 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:35:13,327 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:35:13,330 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:35:14,155 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:35:14,167 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:35:14,167 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 10:35:14,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:35:14 BoogieIcfgContainer [2022-11-20 10:35:14,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:35:14,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:35:14,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:35:14,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:35:14,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:35:11" (1/3) ... [2022-11-20 10:35:14,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ae94e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:35:14, skipping insertion in model container [2022-11-20 10:35:14,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (2/3) ... [2022-11-20 10:35:14,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ae94e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:35:14, skipping insertion in model container [2022-11-20 10:35:14,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:35:14" (3/3) ... [2022-11-20 10:35:14,179 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_13-arraycollapse_nr.i [2022-11-20 10:35:14,187 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:35:14,198 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:35:14,198 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-20 10:35:14,198 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:35:14,309 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 10:35:14,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 429 places, 430 transitions, 865 flow [2022-11-20 10:35:14,558 INFO L130 PetriNetUnfolder]: 5/429 cut-off events. [2022-11-20 10:35:14,558 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:35:14,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 429 events. 5/429 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 363 event pairs, 0 based on Foata normal form. 0/394 useless extension candidates. Maximal degree in co-relation 303. Up to 2 conditions per place. [2022-11-20 10:35:14,566 INFO L82 GeneralOperation]: Start removeDead. Operand has 429 places, 430 transitions, 865 flow [2022-11-20 10:35:14,574 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 428 places, 429 transitions, 861 flow [2022-11-20 10:35:14,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:35:14,591 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;@4ee9c5f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:35:14,591 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2022-11-20 10:35:14,600 INFO L130 PetriNetUnfolder]: 2/51 cut-off events. [2022-11-20 10:35:14,601 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:35:14,601 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:35:14,602 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:14,602 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 10:35:14,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:14,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1281122193, now seen corresponding path program 1 times [2022-11-20 10:35:14,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:14,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687189913] [2022-11-20 10:35:14,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:14,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:15,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:15,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:15,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687189913] [2022-11-20 10:35:15,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687189913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:15,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:15,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:35:15,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583131309] [2022-11-20 10:35:15,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:15,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:35:15,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:15,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:35:15,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:35:15,525 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 430 [2022-11-20 10:35:15,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 429 transitions, 861 flow. Second operand has 6 states, 6 states have (on average 218.5) internal successors, (1311), 6 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:15,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:35:15,531 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 430 [2022-11-20 10:35:15,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:35:16,778 INFO L130 PetriNetUnfolder]: 649/2251 cut-off events. [2022-11-20 10:35:16,778 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 10:35:16,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3757 conditions, 2251 events. 649/2251 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11666 event pairs, 648 based on Foata normal form. 18/2005 useless extension candidates. Maximal degree in co-relation 3304. Up to 1482 conditions per place. [2022-11-20 10:35:16,802 INFO L137 encePairwiseOnDemand]: 402/430 looper letters, 185 selfloop transitions, 20 changer transitions 2/421 dead transitions. [2022-11-20 10:35:16,802 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 421 transitions, 1255 flow [2022-11-20 10:35:16,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:35:16,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:35:16,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1515 transitions. [2022-11-20 10:35:16,827 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5872093023255814 [2022-11-20 10:35:16,828 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1515 transitions. [2022-11-20 10:35:16,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1515 transitions. [2022-11-20 10:35:16,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:35:16,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1515 transitions. [2022-11-20 10:35:16,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 252.5) internal successors, (1515), 6 states have internal predecessors, (1515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:16,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:16,861 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:16,863 INFO L175 Difference]: Start difference. First operand has 428 places, 429 transitions, 861 flow. Second operand 6 states and 1515 transitions. [2022-11-20 10:35:16,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 421 transitions, 1255 flow [2022-11-20 10:35:16,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 421 transitions, 1254 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:35:16,892 INFO L231 Difference]: Finished difference. Result has 428 places, 419 transitions, 880 flow [2022-11-20 10:35:16,895 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=880, PETRI_PLACES=428, PETRI_TRANSITIONS=419} [2022-11-20 10:35:16,901 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 0 predicate places. [2022-11-20 10:35:16,902 INFO L495 AbstractCegarLoop]: Abstraction has has 428 places, 419 transitions, 880 flow [2022-11-20 10:35:16,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 218.5) internal successors, (1311), 6 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:16,904 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:35:16,905 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:16,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:35:16,905 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 10:35:16,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:16,906 INFO L85 PathProgramCache]: Analyzing trace with hash 6380780, now seen corresponding path program 1 times [2022-11-20 10:35:16,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:16,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921419700] [2022-11-20 10:35:16,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:16,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:17,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:17,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:17,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921419700] [2022-11-20 10:35:17,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921419700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:17,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:17,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:35:17,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328203475] [2022-11-20 10:35:17,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:17,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:35:17,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:17,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:35:17,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:35:17,429 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 430 [2022-11-20 10:35:17,431 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 419 transitions, 880 flow. Second operand has 6 states, 6 states have (on average 219.5) internal successors, (1317), 6 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:17,432 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:35:17,432 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 430 [2022-11-20 10:35:17,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:35:18,396 INFO L130 PetriNetUnfolder]: 649/2245 cut-off events. [2022-11-20 10:35:18,396 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 10:35:18,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3767 conditions, 2245 events. 649/2245 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11643 event pairs, 648 based on Foata normal form. 0/1987 useless extension candidates. Maximal degree in co-relation 3398. Up to 1478 conditions per place. [2022-11-20 10:35:18,407 INFO L137 encePairwiseOnDemand]: 406/430 looper letters, 181 selfloop transitions, 20 changer transitions 0/415 dead transitions. [2022-11-20 10:35:18,408 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 415 transitions, 1274 flow [2022-11-20 10:35:18,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:35:18,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:35:18,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1507 transitions. [2022-11-20 10:35:18,412 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.584108527131783 [2022-11-20 10:35:18,412 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1507 transitions. [2022-11-20 10:35:18,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1507 transitions. [2022-11-20 10:35:18,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:35:18,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1507 transitions. [2022-11-20 10:35:18,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 251.16666666666666) internal successors, (1507), 6 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:18,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:18,425 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:18,426 INFO L175 Difference]: Start difference. First operand has 428 places, 419 transitions, 880 flow. Second operand 6 states and 1507 transitions. [2022-11-20 10:35:18,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 415 transitions, 1274 flow [2022-11-20 10:35:18,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 415 transitions, 1234 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 10:35:18,436 INFO L231 Difference]: Finished difference. Result has 422 places, 415 transitions, 872 flow [2022-11-20 10:35:18,437 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=872, PETRI_PLACES=422, PETRI_TRANSITIONS=415} [2022-11-20 10:35:18,438 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -6 predicate places. [2022-11-20 10:35:18,438 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 415 transitions, 872 flow [2022-11-20 10:35:18,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.5) internal successors, (1317), 6 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:18,439 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:35:18,439 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:18,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:35:18,441 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 10:35:18,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:18,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1065517115, now seen corresponding path program 1 times [2022-11-20 10:35:18,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:18,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978650911] [2022-11-20 10:35:18,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:18,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:18,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:18,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:18,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978650911] [2022-11-20 10:35:18,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978650911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:18,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:18,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:35:18,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920932379] [2022-11-20 10:35:18,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:18,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:35:18,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:18,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:35:18,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:35:18,828 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 430 [2022-11-20 10:35:18,830 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 415 transitions, 872 flow. Second operand has 6 states, 6 states have (on average 231.83333333333334) internal successors, (1391), 6 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:18,830 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:35:18,830 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 430 [2022-11-20 10:35:18,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:35:19,846 INFO L130 PetriNetUnfolder]: 704/2363 cut-off events. [2022-11-20 10:35:19,847 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 10:35:19,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3983 conditions, 2363 events. 704/2363 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 12348 event pairs, 703 based on Foata normal form. 0/2096 useless extension candidates. Maximal degree in co-relation 3613. Up to 1591 conditions per place. [2022-11-20 10:35:19,858 INFO L137 encePairwiseOnDemand]: 424/430 looper letters, 184 selfloop transitions, 5 changer transitions 0/414 dead transitions. [2022-11-20 10:35:19,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 414 transitions, 1248 flow [2022-11-20 10:35:19,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:35:19,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:35:19,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1558 transitions. [2022-11-20 10:35:19,865 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.603875968992248 [2022-11-20 10:35:19,866 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1558 transitions. [2022-11-20 10:35:19,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1558 transitions. [2022-11-20 10:35:19,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:35:19,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1558 transitions. [2022-11-20 10:35:19,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 259.6666666666667) internal successors, (1558), 6 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:19,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:19,880 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:19,880 INFO L175 Difference]: Start difference. First operand has 422 places, 415 transitions, 872 flow. Second operand 6 states and 1558 transitions. [2022-11-20 10:35:19,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 414 transitions, 1248 flow [2022-11-20 10:35:19,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 414 transitions, 1208 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 10:35:19,889 INFO L231 Difference]: Finished difference. Result has 421 places, 414 transitions, 840 flow [2022-11-20 10:35:19,890 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=840, PETRI_PLACES=421, PETRI_TRANSITIONS=414} [2022-11-20 10:35:19,893 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -7 predicate places. [2022-11-20 10:35:19,893 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 414 transitions, 840 flow [2022-11-20 10:35:19,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 231.83333333333334) internal successors, (1391), 6 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:19,894 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:35:19,894 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:19,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:35:19,895 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 10:35:19,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:19,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1388663336, now seen corresponding path program 1 times [2022-11-20 10:35:19,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:19,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725910049] [2022-11-20 10:35:19,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:19,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:19,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:19,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:19,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725910049] [2022-11-20 10:35:19,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725910049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:19,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:19,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:35:19,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679735219] [2022-11-20 10:35:19,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:20,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:35:20,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:20,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:35:20,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:35:20,003 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 404 out of 430 [2022-11-20 10:35:20,005 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 414 transitions, 840 flow. Second operand has 3 states, 3 states have (on average 405.0) internal successors, (1215), 3 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:20,006 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:35:20,006 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 404 of 430 [2022-11-20 10:35:20,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:35:20,158 INFO L130 PetriNetUnfolder]: 1/523 cut-off events. [2022-11-20 10:35:20,159 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 10:35:20,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 523 events. 1/523 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 333 event pairs, 0 based on Foata normal form. 0/496 useless extension candidates. Maximal degree in co-relation 80. Up to 22 conditions per place. [2022-11-20 10:35:20,161 INFO L137 encePairwiseOnDemand]: 427/430 looper letters, 36 selfloop transitions, 2 changer transitions 0/431 dead transitions. [2022-11-20 10:35:20,161 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 431 transitions, 958 flow [2022-11-20 10:35:20,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:35:20,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:35:20,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1251 transitions. [2022-11-20 10:35:20,165 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9697674418604652 [2022-11-20 10:35:20,165 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1251 transitions. [2022-11-20 10:35:20,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1251 transitions. [2022-11-20 10:35:20,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:35:20,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1251 transitions. [2022-11-20 10:35:20,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 417.0) internal successors, (1251), 3 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:20,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 430.0) internal successors, (1720), 4 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:20,176 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 430.0) internal successors, (1720), 4 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:20,176 INFO L175 Difference]: Start difference. First operand has 421 places, 414 transitions, 840 flow. Second operand 3 states and 1251 transitions. [2022-11-20 10:35:20,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 431 transitions, 958 flow [2022-11-20 10:35:20,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 431 transitions, 940 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 10:35:20,188 INFO L231 Difference]: Finished difference. Result has 419 places, 415 transitions, 842 flow [2022-11-20 10:35:20,189 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=842, PETRI_PLACES=419, PETRI_TRANSITIONS=415} [2022-11-20 10:35:20,190 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -9 predicate places. [2022-11-20 10:35:20,190 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 415 transitions, 842 flow [2022-11-20 10:35:20,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 405.0) internal successors, (1215), 3 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:20,191 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:35:20,192 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:20,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:35:20,192 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 10:35:20,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:20,193 INFO L85 PathProgramCache]: Analyzing trace with hash -514088664, now seen corresponding path program 1 times [2022-11-20 10:35:20,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:20,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729930318] [2022-11-20 10:35:20,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:20,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:20,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:20,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:20,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729930318] [2022-11-20 10:35:20,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729930318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:20,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:20,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:35:20,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281075795] [2022-11-20 10:35:20,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:20,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:35:20,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:20,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:35:20,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:35:20,767 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 430 [2022-11-20 10:35:20,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 415 transitions, 842 flow. Second operand has 6 states, 6 states have (on average 236.33333333333334) internal successors, (1418), 6 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:20,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:35:20,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 430 [2022-11-20 10:35:20,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:35:21,588 INFO L130 PetriNetUnfolder]: 704/2470 cut-off events. [2022-11-20 10:35:21,588 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 10:35:21,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4127 conditions, 2470 events. 704/2470 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 12373 event pairs, 703 based on Foata normal form. 0/2202 useless extension candidates. Maximal degree in co-relation 3939. Up to 1625 conditions per place. [2022-11-20 10:35:21,602 INFO L137 encePairwiseOnDemand]: 424/430 looper letters, 182 selfloop transitions, 5 changer transitions 0/414 dead transitions. [2022-11-20 10:35:21,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 414 transitions, 1214 flow [2022-11-20 10:35:21,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:35:21,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:35:21,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1567 transitions. [2022-11-20 10:35:21,607 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6073643410852713 [2022-11-20 10:35:21,607 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1567 transitions. [2022-11-20 10:35:21,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1567 transitions. [2022-11-20 10:35:21,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:35:21,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1567 transitions. [2022-11-20 10:35:21,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 261.1666666666667) internal successors, (1567), 6 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:21,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:21,618 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:21,618 INFO L175 Difference]: Start difference. First operand has 419 places, 415 transitions, 842 flow. Second operand 6 states and 1567 transitions. [2022-11-20 10:35:21,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 414 transitions, 1214 flow [2022-11-20 10:35:21,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 414 transitions, 1212 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:35:21,627 INFO L231 Difference]: Finished difference. Result has 422 places, 414 transitions, 848 flow [2022-11-20 10:35:21,628 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=848, PETRI_PLACES=422, PETRI_TRANSITIONS=414} [2022-11-20 10:35:21,629 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -6 predicate places. [2022-11-20 10:35:21,629 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 414 transitions, 848 flow [2022-11-20 10:35:21,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 236.33333333333334) internal successors, (1418), 6 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:21,630 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:35:21,631 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:21,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:35:21,631 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 10:35:21,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:21,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1322795057, now seen corresponding path program 1 times [2022-11-20 10:35:21,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:21,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665986118] [2022-11-20 10:35:21,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:21,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:22,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:22,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:22,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665986118] [2022-11-20 10:35:22,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665986118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:22,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:22,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:35:22,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858481107] [2022-11-20 10:35:22,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:22,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:35:22,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:22,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:35:22,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:35:22,176 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 430 [2022-11-20 10:35:22,178 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 414 transitions, 848 flow. Second operand has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:22,178 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:35:22,178 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 430 [2022-11-20 10:35:22,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:35:23,165 INFO L130 PetriNetUnfolder]: 649/2347 cut-off events. [2022-11-20 10:35:23,165 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 10:35:23,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3894 conditions, 2347 events. 649/2347 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11646 event pairs, 648 based on Foata normal form. 0/2093 useless extension candidates. Maximal degree in co-relation 3669. Up to 1504 conditions per place. [2022-11-20 10:35:23,176 INFO L137 encePairwiseOnDemand]: 412/430 looper letters, 165 selfloop transitions, 15 changer transitions 0/411 dead transitions. [2022-11-20 10:35:23,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 411 transitions, 1202 flow [2022-11-20 10:35:23,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:35:23,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:35:23,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1581 transitions. [2022-11-20 10:35:23,193 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6127906976744186 [2022-11-20 10:35:23,193 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1581 transitions. [2022-11-20 10:35:23,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1581 transitions. [2022-11-20 10:35:23,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:35:23,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1581 transitions. [2022-11-20 10:35:23,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 263.5) internal successors, (1581), 6 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:23,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:23,205 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:23,205 INFO L175 Difference]: Start difference. First operand has 422 places, 414 transitions, 848 flow. Second operand 6 states and 1581 transitions. [2022-11-20 10:35:23,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 411 transitions, 1202 flow [2022-11-20 10:35:23,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 411 transitions, 1192 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 10:35:23,214 INFO L231 Difference]: Finished difference. Result has 419 places, 411 transitions, 862 flow [2022-11-20 10:35:23,214 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=862, PETRI_PLACES=419, PETRI_TRANSITIONS=411} [2022-11-20 10:35:23,217 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -9 predicate places. [2022-11-20 10:35:23,218 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 411 transitions, 862 flow [2022-11-20 10:35:23,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:23,219 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:35:23,219 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:23,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:35:23,220 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 10:35:23,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:23,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1069798974, now seen corresponding path program 1 times [2022-11-20 10:35:23,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:23,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053521814] [2022-11-20 10:35:23,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:23,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:23,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:23,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:23,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053521814] [2022-11-20 10:35:23,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053521814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:23,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:23,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:35:23,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949508554] [2022-11-20 10:35:23,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:23,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:35:23,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:23,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:35:23,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:35:23,911 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 430 [2022-11-20 10:35:23,914 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 411 transitions, 862 flow. Second operand has 6 states, 6 states have (on average 234.5) internal successors, (1407), 6 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:23,914 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:35:23,914 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 430 [2022-11-20 10:35:23,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:35:24,894 INFO L130 PetriNetUnfolder]: 649/2343 cut-off events. [2022-11-20 10:35:24,894 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:35:24,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3904 conditions, 2343 events. 649/2343 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11634 event pairs, 648 based on Foata normal form. 0/2093 useless extension candidates. Maximal degree in co-relation 3553. Up to 1512 conditions per place. [2022-11-20 10:35:24,906 INFO L137 encePairwiseOnDemand]: 412/430 looper letters, 168 selfloop transitions, 15 changer transitions 0/408 dead transitions. [2022-11-20 10:35:24,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 408 transitions, 1222 flow [2022-11-20 10:35:24,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:35:24,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:35:24,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1548 transitions. [2022-11-20 10:35:24,912 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6 [2022-11-20 10:35:24,913 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1548 transitions. [2022-11-20 10:35:24,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1548 transitions. [2022-11-20 10:35:24,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:35:24,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1548 transitions. [2022-11-20 10:35:24,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 258.0) internal successors, (1548), 6 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:24,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:24,926 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:24,926 INFO L175 Difference]: Start difference. First operand has 419 places, 411 transitions, 862 flow. Second operand 6 states and 1548 transitions. [2022-11-20 10:35:24,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 408 transitions, 1222 flow [2022-11-20 10:35:24,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 408 transitions, 1192 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 10:35:24,937 INFO L231 Difference]: Finished difference. Result has 416 places, 408 transitions, 856 flow [2022-11-20 10:35:24,938 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=826, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=856, PETRI_PLACES=416, PETRI_TRANSITIONS=408} [2022-11-20 10:35:24,939 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -12 predicate places. [2022-11-20 10:35:24,939 INFO L495 AbstractCegarLoop]: Abstraction has has 416 places, 408 transitions, 856 flow [2022-11-20 10:35:24,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 234.5) internal successors, (1407), 6 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:24,940 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:35:24,940 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:24,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:35:24,941 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 10:35:24,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:24,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1313316697, now seen corresponding path program 1 times [2022-11-20 10:35:24,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:24,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758221022] [2022-11-20 10:35:24,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:24,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:24,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:25,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:25,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:25,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758221022] [2022-11-20 10:35:25,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758221022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:25,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:25,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:35:25,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297121294] [2022-11-20 10:35:25,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:25,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:35:25,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:25,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:35:25,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:35:25,664 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 430 [2022-11-20 10:35:25,666 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 408 transitions, 856 flow. Second operand has 6 states, 6 states have (on average 235.33333333333334) internal successors, (1412), 6 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:25,666 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:35:25,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 430 [2022-11-20 10:35:25,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:35:26,610 INFO L130 PetriNetUnfolder]: 649/2339 cut-off events. [2022-11-20 10:35:26,610 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 10:35:26,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3896 conditions, 2339 events. 649/2339 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11609 event pairs, 648 based on Foata normal form. 0/2093 useless extension candidates. Maximal degree in co-relation 3549. Up to 1508 conditions per place. [2022-11-20 10:35:26,621 INFO L137 encePairwiseOnDemand]: 412/430 looper letters, 165 selfloop transitions, 15 changer transitions 0/405 dead transitions. [2022-11-20 10:35:26,621 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 405 transitions, 1210 flow [2022-11-20 10:35:26,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:35:26,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:35:26,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1545 transitions. [2022-11-20 10:35:26,626 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5988372093023255 [2022-11-20 10:35:26,626 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1545 transitions. [2022-11-20 10:35:26,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1545 transitions. [2022-11-20 10:35:26,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:35:26,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1545 transitions. [2022-11-20 10:35:26,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 257.5) internal successors, (1545), 6 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:26,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:26,637 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:26,637 INFO L175 Difference]: Start difference. First operand has 416 places, 408 transitions, 856 flow. Second operand 6 states and 1545 transitions. [2022-11-20 10:35:26,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 405 transitions, 1210 flow [2022-11-20 10:35:26,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 405 transitions, 1180 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 10:35:26,646 INFO L231 Difference]: Finished difference. Result has 413 places, 405 transitions, 850 flow [2022-11-20 10:35:26,647 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=850, PETRI_PLACES=413, PETRI_TRANSITIONS=405} [2022-11-20 10:35:26,647 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -15 predicate places. [2022-11-20 10:35:26,648 INFO L495 AbstractCegarLoop]: Abstraction has has 413 places, 405 transitions, 850 flow [2022-11-20 10:35:26,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 235.33333333333334) internal successors, (1412), 6 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:26,649 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:35:26,649 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:26,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:35:26,650 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 10:35:26,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:26,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1077547052, now seen corresponding path program 1 times [2022-11-20 10:35:26,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:26,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565296082] [2022-11-20 10:35:26,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:26,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:26,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:26,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:26,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565296082] [2022-11-20 10:35:26,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565296082] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:26,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151006858] [2022-11-20 10:35:26,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:26,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:26,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:26,997 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:27,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:35:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:27,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:35:27,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:27,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:27,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:27,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:27,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151006858] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:27,820 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:35:27,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 10:35:27,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922762865] [2022-11-20 10:35:27,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:27,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:35:27,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:27,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:35:27,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:35:27,829 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 430 [2022-11-20 10:35:27,834 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 405 transitions, 850 flow. Second operand has 10 states, 10 states have (on average 408.6) internal successors, (4086), 10 states have internal predecessors, (4086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:27,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:35:27,837 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 430 [2022-11-20 10:35:27,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:35:28,076 INFO L130 PetriNetUnfolder]: 1/617 cut-off events. [2022-11-20 10:35:28,076 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:35:28,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 709 conditions, 617 events. 1/617 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 2/607 useless extension candidates. Maximal degree in co-relation 94. Up to 17 conditions per place. [2022-11-20 10:35:28,078 INFO L137 encePairwiseOnDemand]: 424/430 looper letters, 47 selfloop transitions, 9 changer transitions 0/439 dead transitions. [2022-11-20 10:35:28,079 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 439 transitions, 1032 flow [2022-11-20 10:35:28,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:35:28,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 10:35:28,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3685 transitions. [2022-11-20 10:35:28,088 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9521963824289406 [2022-11-20 10:35:28,088 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3685 transitions. [2022-11-20 10:35:28,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3685 transitions. [2022-11-20 10:35:28,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:35:28,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3685 transitions. [2022-11-20 10:35:28,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 409.44444444444446) internal successors, (3685), 9 states have internal predecessors, (3685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:28,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 430.0) internal successors, (4300), 10 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:28,107 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 430.0) internal successors, (4300), 10 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:28,107 INFO L175 Difference]: Start difference. First operand has 413 places, 405 transitions, 850 flow. Second operand 9 states and 3685 transitions. [2022-11-20 10:35:28,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 439 transitions, 1032 flow [2022-11-20 10:35:28,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 439 transitions, 1002 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 10:35:28,117 INFO L231 Difference]: Finished difference. Result has 419 places, 411 transitions, 870 flow [2022-11-20 10:35:28,118 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=870, PETRI_PLACES=419, PETRI_TRANSITIONS=411} [2022-11-20 10:35:28,119 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -9 predicate places. [2022-11-20 10:35:28,119 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 411 transitions, 870 flow [2022-11-20 10:35:28,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 408.6) internal successors, (4086), 10 states have internal predecessors, (4086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:28,123 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:35:28,124 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:28,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-20 10:35:28,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:28,330 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 10:35:28,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:28,331 INFO L85 PathProgramCache]: Analyzing trace with hash 482614580, now seen corresponding path program 2 times [2022-11-20 10:35:28,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:28,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406592296] [2022-11-20 10:35:28,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:28,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:29,368 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:29,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:29,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406592296] [2022-11-20 10:35:29,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406592296] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:29,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997778066] [2022-11-20 10:35:29,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:35:29,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:29,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:29,372 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:29,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:35:29,697 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:35:29,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:35:29,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 10:35:29,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:29,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:35:29,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-20 10:35:29,842 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:35:29,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-20 10:35:29,883 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:35:29,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-20 10:35:29,917 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-11-20 10:35:29,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:35:29,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997778066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:29,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:35:29,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-11-20 10:35:29,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958549163] [2022-11-20 10:35:29,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:29,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:35:29,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:29,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:35:29,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:35:29,926 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 430 [2022-11-20 10:35:29,928 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 411 transitions, 870 flow. Second operand has 6 states, 6 states have (on average 243.33333333333334) internal successors, (1460), 6 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:29,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:35:29,929 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 430 [2022-11-20 10:35:29,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:35:32,149 INFO L130 PetriNetUnfolder]: 1388/4491 cut-off events. [2022-11-20 10:35:32,150 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-20 10:35:32,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7621 conditions, 4491 events. 1388/4491 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 28651 event pairs, 95 based on Foata normal form. 0/4042 useless extension candidates. Maximal degree in co-relation 7115. Up to 1989 conditions per place. [2022-11-20 10:35:32,179 INFO L137 encePairwiseOnDemand]: 402/430 looper letters, 265 selfloop transitions, 74 changer transitions 0/575 dead transitions. [2022-11-20 10:35:32,179 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 575 transitions, 1876 flow [2022-11-20 10:35:32,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:35:32,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:35:32,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1733 transitions. [2022-11-20 10:35:32,185 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6717054263565891 [2022-11-20 10:35:32,185 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1733 transitions. [2022-11-20 10:35:32,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1733 transitions. [2022-11-20 10:35:32,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:35:32,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1733 transitions. [2022-11-20 10:35:32,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 288.8333333333333) internal successors, (1733), 6 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:32,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:32,198 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:32,198 INFO L175 Difference]: Start difference. First operand has 419 places, 411 transitions, 870 flow. Second operand 6 states and 1733 transitions. [2022-11-20 10:35:32,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 575 transitions, 1876 flow [2022-11-20 10:35:32,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 575 transitions, 1870 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-20 10:35:32,212 INFO L231 Difference]: Finished difference. Result has 427 places, 478 transitions, 1336 flow [2022-11-20 10:35:32,213 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1336, PETRI_PLACES=427, PETRI_TRANSITIONS=478} [2022-11-20 10:35:32,214 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -1 predicate places. [2022-11-20 10:35:32,214 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 478 transitions, 1336 flow [2022-11-20 10:35:32,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 243.33333333333334) internal successors, (1460), 6 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:32,215 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:35:32,215 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:32,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:32,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:32,422 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 10:35:32,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:32,423 INFO L85 PathProgramCache]: Analyzing trace with hash 771157745, now seen corresponding path program 1 times [2022-11-20 10:35:32,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:32,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855964483] [2022-11-20 10:35:32,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:32,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:33,526 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:33,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:33,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855964483] [2022-11-20 10:35:33,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855964483] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:33,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728938263] [2022-11-20 10:35:33,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:33,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:33,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:33,533 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:33,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 10:35:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:34,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 1759 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:35:34,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:34,648 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:34,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:35,268 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:35,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728938263] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:35,269 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:35:35,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-20 10:35:35,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226906929] [2022-11-20 10:35:35,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:35,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:35:35,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:35,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:35:35,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:35:35,281 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 430 [2022-11-20 10:35:35,287 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 478 transitions, 1336 flow. Second operand has 18 states, 18 states have (on average 409.8888888888889) internal successors, (7378), 18 states have internal predecessors, (7378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:35,288 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:35:35,288 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 430 [2022-11-20 10:35:35,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:35:36,490 INFO L130 PetriNetUnfolder]: 126/1996 cut-off events. [2022-11-20 10:35:36,491 INFO L131 PetriNetUnfolder]: For 108/114 co-relation queries the response was YES. [2022-11-20 10:35:36,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2675 conditions, 1996 events. 126/1996 cut-off events. For 108/114 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6296 event pairs, 0 based on Foata normal form. 4/1926 useless extension candidates. Maximal degree in co-relation 1741. Up to 173 conditions per place. [2022-11-20 10:35:36,505 INFO L137 encePairwiseOnDemand]: 424/430 looper letters, 103 selfloop transitions, 21 changer transitions 0/574 dead transitions. [2022-11-20 10:35:36,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 574 transitions, 1828 flow [2022-11-20 10:35:36,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 10:35:36,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 10:35:36,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8591 transitions. [2022-11-20 10:35:36,522 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9513842746400886 [2022-11-20 10:35:36,522 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 8591 transitions. [2022-11-20 10:35:36,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 8591 transitions. [2022-11-20 10:35:36,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:35:36,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 8591 transitions. [2022-11-20 10:35:36,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 409.0952380952381) internal successors, (8591), 21 states have internal predecessors, (8591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:36,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 430.0) internal successors, (9460), 22 states have internal predecessors, (9460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:36,562 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 430.0) internal successors, (9460), 22 states have internal predecessors, (9460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:36,562 INFO L175 Difference]: Start difference. First operand has 427 places, 478 transitions, 1336 flow. Second operand 21 states and 8591 transitions. [2022-11-20 10:35:36,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 574 transitions, 1828 flow [2022-11-20 10:35:36,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 574 transitions, 1828 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:35:36,578 INFO L231 Difference]: Finished difference. Result has 452 places, 491 transitions, 1466 flow [2022-11-20 10:35:36,579 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=1336, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1466, PETRI_PLACES=452, PETRI_TRANSITIONS=491} [2022-11-20 10:35:36,580 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 24 predicate places. [2022-11-20 10:35:36,580 INFO L495 AbstractCegarLoop]: Abstraction has has 452 places, 491 transitions, 1466 flow [2022-11-20 10:35:36,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 409.8888888888889) internal successors, (7378), 18 states have internal predecessors, (7378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:36,582 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:35:36,583 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:36,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:36,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:36,792 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 10:35:36,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:36,792 INFO L85 PathProgramCache]: Analyzing trace with hash 399804673, now seen corresponding path program 2 times [2022-11-20 10:35:36,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:36,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235072711] [2022-11-20 10:35:36,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:36,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:39,478 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:39,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:39,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235072711] [2022-11-20 10:35:39,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235072711] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:39,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909610471] [2022-11-20 10:35:39,479 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:35:39,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:39,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:39,480 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:39,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 10:35:40,126 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:35:40,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:35:40,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 10:35:40,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:40,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:35:40,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-20 10:35:40,237 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:35:40,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-20 10:35:40,284 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:35:40,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-20 10:35:40,323 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2233 trivial. 0 not checked. [2022-11-20 10:35:40,323 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:35:40,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909610471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:40,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:35:40,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-20 10:35:40,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857737895] [2022-11-20 10:35:40,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:40,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:35:40,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:40,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:35:40,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-20 10:35:40,330 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 430 [2022-11-20 10:35:40,331 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 491 transitions, 1466 flow. Second operand has 6 states, 6 states have (on average 250.5) internal successors, (1503), 6 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:40,332 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:35:40,332 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 430 [2022-11-20 10:35:40,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:35:43,267 INFO L130 PetriNetUnfolder]: 1278/4853 cut-off events. [2022-11-20 10:35:43,267 INFO L131 PetriNetUnfolder]: For 1260/1341 co-relation queries the response was YES. [2022-11-20 10:35:43,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9435 conditions, 4853 events. 1278/4853 cut-off events. For 1260/1341 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 27888 event pairs, 859 based on Foata normal form. 0/4442 useless extension candidates. Maximal degree in co-relation 8253. Up to 3052 conditions per place. [2022-11-20 10:35:43,293 INFO L137 encePairwiseOnDemand]: 424/430 looper letters, 234 selfloop transitions, 5 changer transitions 0/490 dead transitions. [2022-11-20 10:35:43,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 490 transitions, 1942 flow [2022-11-20 10:35:43,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:35:43,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:35:43,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1576 transitions. [2022-11-20 10:35:43,301 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6108527131782946 [2022-11-20 10:35:43,301 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1576 transitions. [2022-11-20 10:35:43,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1576 transitions. [2022-11-20 10:35:43,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:35:43,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1576 transitions. [2022-11-20 10:35:43,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 262.6666666666667) internal successors, (1576), 6 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:43,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:43,313 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:43,313 INFO L175 Difference]: Start difference. First operand has 452 places, 491 transitions, 1466 flow. Second operand 6 states and 1576 transitions. [2022-11-20 10:35:43,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 490 transitions, 1942 flow [2022-11-20 10:35:43,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 490 transitions, 1918 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-20 10:35:43,329 INFO L231 Difference]: Finished difference. Result has 450 places, 490 transitions, 1450 flow [2022-11-20 10:35:43,330 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=1440, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=485, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1450, PETRI_PLACES=450, PETRI_TRANSITIONS=490} [2022-11-20 10:35:43,331 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 22 predicate places. [2022-11-20 10:35:43,331 INFO L495 AbstractCegarLoop]: Abstraction has has 450 places, 490 transitions, 1450 flow [2022-11-20 10:35:43,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 250.5) internal successors, (1503), 6 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:43,332 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:35:43,333 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:43,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:43,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-20 10:35:43,540 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 10:35:43,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:43,541 INFO L85 PathProgramCache]: Analyzing trace with hash 747994625, now seen corresponding path program 1 times [2022-11-20 10:35:43,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:43,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270371467] [2022-11-20 10:35:43,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:43,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:46,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:46,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:46,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270371467] [2022-11-20 10:35:46,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270371467] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:46,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788263652] [2022-11-20 10:35:46,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:46,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:46,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:46,197 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:46,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 10:35:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:47,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 3679 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 10:35:47,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:48,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:48,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:50,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:50,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788263652] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:50,047 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:35:50,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-20 10:35:50,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788246510] [2022-11-20 10:35:50,048 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:50,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 10:35:50,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:50,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 10:35:50,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-20 10:35:50,061 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 430 [2022-11-20 10:35:50,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 490 transitions, 1450 flow. Second operand has 23 states, 23 states have (on average 410.6521739130435) internal successors, (9445), 23 states have internal predecessors, (9445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:50,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:35:50,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 430 [2022-11-20 10:35:50,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:35:51,608 INFO L130 PetriNetUnfolder]: 133/2320 cut-off events. [2022-11-20 10:35:51,608 INFO L131 PetriNetUnfolder]: For 225/231 co-relation queries the response was YES. [2022-11-20 10:35:51,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3126 conditions, 2320 events. 133/2320 cut-off events. For 225/231 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6305 event pairs, 0 based on Foata normal form. 3/2250 useless extension candidates. Maximal degree in co-relation 1766. Up to 173 conditions per place. [2022-11-20 10:35:51,620 INFO L137 encePairwiseOnDemand]: 424/430 looper letters, 145 selfloop transitions, 30 changer transitions 0/624 dead transitions. [2022-11-20 10:35:51,620 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 624 transitions, 2156 flow [2022-11-20 10:35:51,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 10:35:51,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-20 10:35:51,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 12268 transitions. [2022-11-20 10:35:51,638 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9510077519379845 [2022-11-20 10:35:51,638 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 12268 transitions. [2022-11-20 10:35:51,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 12268 transitions. [2022-11-20 10:35:51,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:35:51,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 12268 transitions. [2022-11-20 10:35:51,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 408.93333333333334) internal successors, (12268), 30 states have internal predecessors, (12268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:51,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 430.0) internal successors, (13330), 31 states have internal predecessors, (13330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:51,690 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 430.0) internal successors, (13330), 31 states have internal predecessors, (13330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:51,690 INFO L175 Difference]: Start difference. First operand has 450 places, 490 transitions, 1450 flow. Second operand 30 states and 12268 transitions. [2022-11-20 10:35:51,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 624 transitions, 2156 flow [2022-11-20 10:35:51,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 624 transitions, 2146 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 10:35:51,705 INFO L231 Difference]: Finished difference. Result has 478 places, 500 transitions, 1592 flow [2022-11-20 10:35:51,705 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=1440, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1592, PETRI_PLACES=478, PETRI_TRANSITIONS=500} [2022-11-20 10:35:51,706 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 50 predicate places. [2022-11-20 10:35:51,706 INFO L495 AbstractCegarLoop]: Abstraction has has 478 places, 500 transitions, 1592 flow [2022-11-20 10:35:51,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 410.6521739130435) internal successors, (9445), 23 states have internal predecessors, (9445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:51,711 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:35:51,712 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:51,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:51,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-20 10:35:51,923 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 10:35:51,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:51,924 INFO L85 PathProgramCache]: Analyzing trace with hash -711783563, now seen corresponding path program 2 times [2022-11-20 10:35:51,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:51,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760295170] [2022-11-20 10:35:51,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:51,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:56,270 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2022-11-20 10:35:56,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:56,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760295170] [2022-11-20 10:35:56,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760295170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:56,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:56,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:35:56,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18277135] [2022-11-20 10:35:56,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:56,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:35:56,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:56,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:35:56,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:35:56,275 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 430 [2022-11-20 10:35:56,277 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 500 transitions, 1592 flow. Second operand has 6 states, 6 states have (on average 260.8333333333333) internal successors, (1565), 6 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:56,277 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:35:56,277 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 430 [2022-11-20 10:35:56,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:35:59,499 INFO L130 PetriNetUnfolder]: 1524/5662 cut-off events. [2022-11-20 10:35:59,499 INFO L131 PetriNetUnfolder]: For 1461/1548 co-relation queries the response was YES. [2022-11-20 10:35:59,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11047 conditions, 5662 events. 1524/5662 cut-off events. For 1461/1548 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 31575 event pairs, 624 based on Foata normal form. 16/5257 useless extension candidates. Maximal degree in co-relation 9366. Up to 3074 conditions per place. [2022-11-20 10:35:59,531 INFO L137 encePairwiseOnDemand]: 407/430 looper letters, 311 selfloop transitions, 130 changer transitions 0/709 dead transitions. [2022-11-20 10:35:59,531 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 709 transitions, 3268 flow [2022-11-20 10:35:59,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:35:59,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:35:59,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1760 transitions. [2022-11-20 10:35:59,534 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6821705426356589 [2022-11-20 10:35:59,535 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1760 transitions. [2022-11-20 10:35:59,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1760 transitions. [2022-11-20 10:35:59,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:35:59,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1760 transitions. [2022-11-20 10:35:59,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 293.3333333333333) internal successors, (1760), 6 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:59,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:59,543 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:59,543 INFO L175 Difference]: Start difference. First operand has 478 places, 500 transitions, 1592 flow. Second operand 6 states and 1760 transitions. [2022-11-20 10:35:59,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 709 transitions, 3268 flow [2022-11-20 10:35:59,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 709 transitions, 3222 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-20 10:35:59,562 INFO L231 Difference]: Finished difference. Result has 470 places, 629 transitions, 2774 flow [2022-11-20 10:35:59,563 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=1546, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=500, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2774, PETRI_PLACES=470, PETRI_TRANSITIONS=629} [2022-11-20 10:35:59,564 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 42 predicate places. [2022-11-20 10:35:59,564 INFO L495 AbstractCegarLoop]: Abstraction has has 470 places, 629 transitions, 2774 flow [2022-11-20 10:35:59,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 260.8333333333333) internal successors, (1565), 6 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:59,565 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:35:59,566 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:59,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 10:35:59,566 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 10:35:59,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:59,567 INFO L85 PathProgramCache]: Analyzing trace with hash 219422934, now seen corresponding path program 1 times [2022-11-20 10:35:59,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:59,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041264813] [2022-11-20 10:35:59,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:59,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:03,881 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2022-11-20 10:36:03,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:36:03,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041264813] [2022-11-20 10:36:03,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041264813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:36:03,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:36:03,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:36:03,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330720674] [2022-11-20 10:36:03,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:36:03,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:36:03,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:36:03,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:36:03,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:36:03,887 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 430 [2022-11-20 10:36:03,888 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 629 transitions, 2774 flow. Second operand has 6 states, 6 states have (on average 258.5) internal successors, (1551), 6 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:03,888 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:36:03,889 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 430 [2022-11-20 10:36:03,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:36:08,632 INFO L130 PetriNetUnfolder]: 1637/6463 cut-off events. [2022-11-20 10:36:08,632 INFO L131 PetriNetUnfolder]: For 3781/3980 co-relation queries the response was YES. [2022-11-20 10:36:08,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14059 conditions, 6463 events. 1637/6463 cut-off events. For 3781/3980 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 40624 event pairs, 508 based on Foata normal form. 8/6099 useless extension candidates. Maximal degree in co-relation 12395. Up to 3338 conditions per place. [2022-11-20 10:36:08,673 INFO L137 encePairwiseOnDemand]: 408/430 looper letters, 439 selfloop transitions, 129 changer transitions 5/837 dead transitions. [2022-11-20 10:36:08,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 837 transitions, 4958 flow [2022-11-20 10:36:08,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:36:08,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:36:08,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1739 transitions. [2022-11-20 10:36:08,676 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.674031007751938 [2022-11-20 10:36:08,676 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1739 transitions. [2022-11-20 10:36:08,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1739 transitions. [2022-11-20 10:36:08,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:36:08,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1739 transitions. [2022-11-20 10:36:08,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 289.8333333333333) internal successors, (1739), 6 states have internal predecessors, (1739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:08,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:08,685 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:08,685 INFO L175 Difference]: Start difference. First operand has 470 places, 629 transitions, 2774 flow. Second operand 6 states and 1739 transitions. [2022-11-20 10:36:08,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 837 transitions, 4958 flow [2022-11-20 10:36:08,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 837 transitions, 4958 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:36:08,986 INFO L231 Difference]: Finished difference. Result has 480 places, 756 transitions, 4240 flow [2022-11-20 10:36:08,987 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=2774, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=593, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4240, PETRI_PLACES=480, PETRI_TRANSITIONS=756} [2022-11-20 10:36:08,988 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 52 predicate places. [2022-11-20 10:36:08,988 INFO L495 AbstractCegarLoop]: Abstraction has has 480 places, 756 transitions, 4240 flow [2022-11-20 10:36:08,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 258.5) internal successors, (1551), 6 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:08,989 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:36:08,990 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:36:08,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 10:36:08,990 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 10:36:08,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:08,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1315103976, now seen corresponding path program 1 times [2022-11-20 10:36:08,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:36:08,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551677063] [2022-11-20 10:36:08,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:08,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:36:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:12,759 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2022-11-20 10:36:12,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:36:12,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551677063] [2022-11-20 10:36:12,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551677063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:36:12,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:36:12,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:36:12,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915398395] [2022-11-20 10:36:12,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:36:12,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:36:12,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:36:12,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:36:12,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:36:12,765 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 430 [2022-11-20 10:36:12,767 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 756 transitions, 4240 flow. Second operand has 6 states, 6 states have (on average 257.1666666666667) internal successors, (1543), 6 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:12,767 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:36:12,767 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 430 [2022-11-20 10:36:12,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:36:17,087 INFO L130 PetriNetUnfolder]: 1747/6621 cut-off events. [2022-11-20 10:36:17,087 INFO L131 PetriNetUnfolder]: For 5716/5744 co-relation queries the response was YES. [2022-11-20 10:36:17,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16422 conditions, 6621 events. 1747/6621 cut-off events. For 5716/5744 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 40904 event pairs, 657 based on Foata normal form. 0/6316 useless extension candidates. Maximal degree in co-relation 14754. Up to 3984 conditions per place. [2022-11-20 10:36:17,128 INFO L137 encePairwiseOnDemand]: 411/430 looper letters, 505 selfloop transitions, 84 changer transitions 0/854 dead transitions. [2022-11-20 10:36:17,128 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 854 transitions, 5932 flow [2022-11-20 10:36:17,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:36:17,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:36:17,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1673 transitions. [2022-11-20 10:36:17,131 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6484496124031007 [2022-11-20 10:36:17,131 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1673 transitions. [2022-11-20 10:36:17,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1673 transitions. [2022-11-20 10:36:17,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:36:17,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1673 transitions. [2022-11-20 10:36:17,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 278.8333333333333) internal successors, (1673), 6 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:17,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:17,139 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:17,139 INFO L175 Difference]: Start difference. First operand has 480 places, 756 transitions, 4240 flow. Second operand 6 states and 1673 transitions. [2022-11-20 10:36:17,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 484 places, 854 transitions, 5932 flow [2022-11-20 10:36:17,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 854 transitions, 5678 flow, removed 127 selfloop flow, removed 0 redundant places. [2022-11-20 10:36:17,178 INFO L231 Difference]: Finished difference. Result has 489 places, 827 transitions, 4776 flow [2022-11-20 10:36:17,179 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=3992, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=756, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=708, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4776, PETRI_PLACES=489, PETRI_TRANSITIONS=827} [2022-11-20 10:36:17,180 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 61 predicate places. [2022-11-20 10:36:17,180 INFO L495 AbstractCegarLoop]: Abstraction has has 489 places, 827 transitions, 4776 flow [2022-11-20 10:36:17,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 257.1666666666667) internal successors, (1543), 6 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:17,181 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:36:17,181 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:36:17,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 10:36:17,182 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 10:36:17,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:17,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1176412471, now seen corresponding path program 1 times [2022-11-20 10:36:17,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:36:17,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220820640] [2022-11-20 10:36:17,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:17,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:36:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:02,208 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 389 proven. 4305 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-11-20 10:40:02,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:02,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220820640] [2022-11-20 10:40:02,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220820640] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:40:02,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996439941] [2022-11-20 10:40:02,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:02,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:40:02,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:40:02,217 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:40:02,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f24ce9f-4c20-4511-8349-536f891b9cf3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 10:40:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:08,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 4993 conjuncts, 143 conjunts are in the unsatisfiable core [2022-11-20 10:40:08,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:40:08,644 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-20 10:40:08,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-20 10:40:09,090 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-20 10:40:09,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-20 10:40:10,250 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-20 10:40:10,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-20 10:40:11,325 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-20 10:40:11,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-20 10:40:13,140 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-20 10:40:13,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-20 10:40:14,359 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-20 10:40:14,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-20 10:40:16,324 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-20 10:40:16,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-20 10:40:17,547 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-20 10:40:17,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-20 10:40:20,008 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-20 10:40:20,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-20 10:40:21,396 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-20 10:40:21,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-20 10:40:24,160 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-20 10:40:24,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-20 10:40:25,317 INFO L321 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2022-11-20 10:40:25,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2022-11-20 10:40:26,417 INFO L321 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2022-11-20 10:40:26,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2022-11-20 10:40:27,153 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-20 10:40:27,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-20 10:40:29,511 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-20 10:40:29,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2022-11-20 10:40:31,083 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-20 10:40:31,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2022-11-20 10:40:37,296 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-20 10:40:37,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2022-11-20 10:40:40,748 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-20 10:40:40,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2022-11-20 10:40:48,204 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-20 10:40:48,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2022-11-20 10:40:52,775 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-20 10:40:52,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2022-11-20 10:40:59,681 INFO L321 Elim1Store]: treesize reduction 40, result has 48.1 percent of original size [2022-11-20 10:40:59,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 54 [2022-11-20 10:41:01,239 INFO L321 Elim1Store]: treesize reduction 180, result has 36.4 percent of original size [2022-11-20 10:41:01,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 84 treesize of output 171 [2022-11-20 10:41:11,080 INFO L321 Elim1Store]: treesize reduction 180, result has 36.4 percent of original size [2022-11-20 10:41:11,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 84 treesize of output 171 [2022-11-20 10:41:26,243 INFO L321 Elim1Store]: treesize reduction 4, result has 97.6 percent of original size [2022-11-20 10:41:26,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 78 treesize of output 228 [2022-11-20 10:41:28,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:41:28,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-20 10:41:29,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2022-11-20 10:41:29,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2022-11-20 10:41:29,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:41:29,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 67 [2022-11-20 10:41:29,807 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 3039 proven. 337 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2022-11-20 10:41:29,807 INFO L328 TraceCheckSpWp]: Computing backward predicates...