./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/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_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/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_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/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 5810bf8f90e8e4e20451fbc06dd5039f754e5765485d12699b814c2e1d4badb7 --- 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 12:25:29,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:25:29,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:25:29,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:25:29,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:25:29,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:25:29,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:25:29,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:25:29,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:25:29,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:25:29,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:25:29,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:25:29,959 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:25:29,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:25:29,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:25:29,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:25:29,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:25:29,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:25:29,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:25:29,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:25:29,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:25:29,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:25:29,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:25:29,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:25:29,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:25:29,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:25:29,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:25:30,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:25:30,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:25:30,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:25:30,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:25:30,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:25:30,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:25:30,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:25:30,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:25:30,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:25:30,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:25:30,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:25:30,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:25:30,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:25:30,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:25:30,028 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:25:30,072 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:25:30,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:25:30,076 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:25:30,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:25:30,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:25:30,078 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:25:30,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:25:30,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:25:30,081 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:25:30,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:25:30,082 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:25:30,083 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:25:30,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:25:30,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:25:30,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:25:30,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:25:30,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:25:30,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:25:30,085 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:25:30,086 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:25:30,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:25:30,087 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:25:30,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:25:30,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:25:30,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:25:30,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:25:30,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:25:30,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:25:30,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:25:30,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:25:30,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:25:30,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:25:30,091 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:25:30,092 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:25:30,092 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:25:30,092 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_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810bf8f90e8e4e20451fbc06dd5039f754e5765485d12699b814c2e1d4badb7 [2022-11-20 12:25:30,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:25:30,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:25:30,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:25:30,507 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:25:30,507 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:25:30,509 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i [2022-11-20 12:25:34,026 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:25:34,452 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:25:34,457 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i [2022-11-20 12:25:34,481 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/data/80843d130/24dae2cfcf054790b07c82180e6949f3/FLAG2bb0aa792 [2022-11-20 12:25:34,503 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/data/80843d130/24dae2cfcf054790b07c82180e6949f3 [2022-11-20 12:25:34,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:25:34,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:25:34,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:25:34,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:25:34,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:25:34,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:25:34" (1/1) ... [2022-11-20 12:25:34,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24ce1f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:34, skipping insertion in model container [2022-11-20 12:25:34,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:25:34" (1/1) ... [2022-11-20 12:25:34,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:25:34,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:25:35,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:25:35,477 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:25:35,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:25:35,662 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:25:35,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:35 WrapperNode [2022-11-20 12:25:35,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:25:35,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:25:35,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:25:35,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:25:35,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:35" (1/1) ... [2022-11-20 12:25:35,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:35" (1/1) ... [2022-11-20 12:25:35,745 INFO L138 Inliner]: procedures = 368, calls = 28, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 232 [2022-11-20 12:25:35,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:25:35,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:25:35,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:25:35,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:25:35,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:35" (1/1) ... [2022-11-20 12:25:35,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:35" (1/1) ... [2022-11-20 12:25:35,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:35" (1/1) ... [2022-11-20 12:25:35,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:35" (1/1) ... [2022-11-20 12:25:35,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:35" (1/1) ... [2022-11-20 12:25:35,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:35" (1/1) ... [2022-11-20 12:25:35,801 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:35" (1/1) ... [2022-11-20 12:25:35,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:35" (1/1) ... [2022-11-20 12:25:35,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:25:35,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:25:35,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:25:35,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:25:35,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:35" (1/1) ... [2022-11-20 12:25:35,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:25:35,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:25:35,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:25:35,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:25:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:25:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:25:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:25:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:25:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:25:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 12:25:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:25:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:25:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:25:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 12:25:35,945 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 12:25:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:25:35,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:25:35,948 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 12:25:36,209 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:25:36,211 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:25:37,015 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:25:37,027 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:25:37,027 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 12:25:37,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:25:37 BoogieIcfgContainer [2022-11-20 12:25:37,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:25:37,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:25:37,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:25:37,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:25:37,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:25:34" (1/3) ... [2022-11-20 12:25:37,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0f0491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:25:37, skipping insertion in model container [2022-11-20 12:25:37,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:35" (2/3) ... [2022-11-20 12:25:37,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0f0491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:25:37, skipping insertion in model container [2022-11-20 12:25:37,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:25:37" (3/3) ... [2022-11-20 12:25:37,041 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_16-arrayloop_rc.i [2022-11-20 12:25:37,051 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:25:37,064 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:25:37,065 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-20 12:25:37,065 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:25:37,296 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 12:25:37,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 267 places, 269 transitions, 543 flow [2022-11-20 12:25:37,481 INFO L130 PetriNetUnfolder]: 6/268 cut-off events. [2022-11-20 12:25:37,482 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:25:37,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 268 events. 6/268 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 428 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 200. Up to 2 conditions per place. [2022-11-20 12:25:37,502 INFO L82 GeneralOperation]: Start removeDead. Operand has 267 places, 269 transitions, 543 flow [2022-11-20 12:25:37,511 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 266 places, 268 transitions, 539 flow [2022-11-20 12:25:37,523 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:25:37,531 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;@1effa430, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:25:37,531 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-20 12:25:37,550 INFO L130 PetriNetUnfolder]: 3/74 cut-off events. [2022-11-20 12:25:37,550 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:25:37,550 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:25:37,551 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] [2022-11-20 12:25:37,552 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 12:25:37,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:25:37,559 INFO L85 PathProgramCache]: Analyzing trace with hash -41811968, now seen corresponding path program 1 times [2022-11-20 12:25:37,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:25:37,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092032976] [2022-11-20 12:25:37,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:25:37,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:25:37,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:25:38,803 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 12:25:38,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:25:38,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092032976] [2022-11-20 12:25:38,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092032976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:25:38,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:25:38,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:25:38,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774671507] [2022-11-20 12:25:38,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:25:38,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:25:38,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:25:38,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:25:38,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:25:38,900 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 269 [2022-11-20 12:25:38,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 268 transitions, 539 flow. Second operand has 6 states, 6 states have (on average 144.5) internal successors, (867), 6 states have internal predecessors, (867), 0 states have call successors, (0), 0 states 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 12:25:38,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:25:38,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 269 [2022-11-20 12:25:38,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:25:41,874 INFO L130 PetriNetUnfolder]: 2475/7972 cut-off events. [2022-11-20 12:25:41,874 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 12:25:41,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12946 conditions, 7972 events. 2475/7972 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 62573 event pairs, 1992 based on Foata normal form. 196/7307 useless extension candidates. Maximal degree in co-relation 12850. Up to 4684 conditions per place. [2022-11-20 12:25:41,930 INFO L137 encePairwiseOnDemand]: 229/269 looper letters, 164 selfloop transitions, 107 changer transitions 0/413 dead transitions. [2022-11-20 12:25:41,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 413 transitions, 1371 flow [2022-11-20 12:25:41,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:25:41,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:25:41,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1138 transitions. [2022-11-20 12:25:41,952 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7050805452292441 [2022-11-20 12:25:41,952 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1138 transitions. [2022-11-20 12:25:41,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1138 transitions. [2022-11-20 12:25:41,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:25:41,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1138 transitions. [2022-11-20 12:25:41,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 189.66666666666666) internal successors, (1138), 6 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states 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 12:25:41,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states 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 12:25:41,981 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states 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 12:25:41,984 INFO L175 Difference]: Start difference. First operand has 266 places, 268 transitions, 539 flow. Second operand 6 states and 1138 transitions. [2022-11-20 12:25:41,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 413 transitions, 1371 flow [2022-11-20 12:25:41,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 413 transitions, 1370 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:25:42,001 INFO L231 Difference]: Finished difference. Result has 274 places, 365 transitions, 1220 flow [2022-11-20 12:25:42,004 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1220, PETRI_PLACES=274, PETRI_TRANSITIONS=365} [2022-11-20 12:25:42,009 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 8 predicate places. [2022-11-20 12:25:42,009 INFO L495 AbstractCegarLoop]: Abstraction has has 274 places, 365 transitions, 1220 flow [2022-11-20 12:25:42,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.5) internal successors, (867), 6 states have internal predecessors, (867), 0 states have call successors, (0), 0 states 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 12:25:42,011 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:25:42,011 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] [2022-11-20 12:25:42,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:25:42,012 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 12:25:42,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:25:42,013 INFO L85 PathProgramCache]: Analyzing trace with hash 2070844974, now seen corresponding path program 1 times [2022-11-20 12:25:42,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:25:42,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516254674] [2022-11-20 12:25:42,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:25:42,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:25:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:25:42,663 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 12:25:42,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:25:42,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516254674] [2022-11-20 12:25:42,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516254674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:25:42,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:25:42,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:25:42,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499137273] [2022-11-20 12:25:42,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:25:42,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:25:42,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:25:42,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:25:42,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:25:42,669 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 269 [2022-11-20 12:25:42,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 365 transitions, 1220 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states 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 12:25:42,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:25:42,671 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 269 [2022-11-20 12:25:42,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:25:45,531 INFO L130 PetriNetUnfolder]: 2669/8636 cut-off events. [2022-11-20 12:25:45,532 INFO L131 PetriNetUnfolder]: For 1695/1697 co-relation queries the response was YES. [2022-11-20 12:25:45,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16546 conditions, 8636 events. 2669/8636 cut-off events. For 1695/1697 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 69042 event pairs, 1874 based on Foata normal form. 0/7768 useless extension candidates. Maximal degree in co-relation 16438. Up to 5042 conditions per place. [2022-11-20 12:25:45,597 INFO L137 encePairwiseOnDemand]: 232/269 looper letters, 263 selfloop transitions, 107 changer transitions 0/513 dead transitions. [2022-11-20 12:25:45,598 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 513 transitions, 2448 flow [2022-11-20 12:25:45,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:25:45,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:25:45,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1130 transitions. [2022-11-20 12:25:45,603 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7001239157372986 [2022-11-20 12:25:45,603 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1130 transitions. [2022-11-20 12:25:45,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1130 transitions. [2022-11-20 12:25:45,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:25:45,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1130 transitions. [2022-11-20 12:25:45,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 188.33333333333334) internal successors, (1130), 6 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states 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 12:25:45,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states 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 12:25:45,615 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states 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 12:25:45,616 INFO L175 Difference]: Start difference. First operand has 274 places, 365 transitions, 1220 flow. Second operand 6 states and 1130 transitions. [2022-11-20 12:25:45,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 513 transitions, 2448 flow [2022-11-20 12:25:45,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 513 transitions, 2448 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 12:25:45,650 INFO L231 Difference]: Finished difference. Result has 283 places, 465 transitions, 2100 flow [2022-11-20 12:25:45,651 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=1218, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2100, PETRI_PLACES=283, PETRI_TRANSITIONS=465} [2022-11-20 12:25:45,652 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 17 predicate places. [2022-11-20 12:25:45,653 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 465 transitions, 2100 flow [2022-11-20 12:25:45,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states 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 12:25:45,654 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:25:45,654 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] [2022-11-20 12:25:45,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:25:45,656 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 12:25:45,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:25:45,658 INFO L85 PathProgramCache]: Analyzing trace with hash 2131369800, now seen corresponding path program 1 times [2022-11-20 12:25:45,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:25:45,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532456466] [2022-11-20 12:25:45,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:25:45,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:25:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:25:45,775 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 12:25:45,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:25:45,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532456466] [2022-11-20 12:25:45,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532456466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:25:45,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:25:45,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:25:45,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480634839] [2022-11-20 12:25:45,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:25:45,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:25:45,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:25:45,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:25:45,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:25:45,784 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 269 [2022-11-20 12:25:45,786 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 465 transitions, 2100 flow. Second operand has 3 states, 3 states have (on average 228.66666666666666) internal successors, (686), 3 states have internal predecessors, (686), 0 states have call successors, (0), 0 states 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 12:25:45,786 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:25:45,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 269 [2022-11-20 12:25:45,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:25:47,097 INFO L130 PetriNetUnfolder]: 1071/4163 cut-off events. [2022-11-20 12:25:47,097 INFO L131 PetriNetUnfolder]: For 1148/1160 co-relation queries the response was YES. [2022-11-20 12:25:47,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8530 conditions, 4163 events. 1071/4163 cut-off events. For 1148/1160 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 26621 event pairs, 96 based on Foata normal form. 0/3924 useless extension candidates. Maximal degree in co-relation 8341. Up to 1144 conditions per place. [2022-11-20 12:25:47,134 INFO L137 encePairwiseOnDemand]: 263/269 looper letters, 67 selfloop transitions, 4 changer transitions 0/497 dead transitions. [2022-11-20 12:25:47,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 497 transitions, 2306 flow [2022-11-20 12:25:47,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:25:47,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:25:47,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 754 transitions. [2022-11-20 12:25:47,138 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9343246592317225 [2022-11-20 12:25:47,138 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 754 transitions. [2022-11-20 12:25:47,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 754 transitions. [2022-11-20 12:25:47,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:25:47,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 754 transitions. [2022-11-20 12:25:47,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.33333333333334) internal successors, (754), 3 states have internal predecessors, (754), 0 states have call successors, (0), 0 states 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 12:25:47,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states 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 12:25:47,145 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states 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 12:25:47,145 INFO L175 Difference]: Start difference. First operand has 283 places, 465 transitions, 2100 flow. Second operand 3 states and 754 transitions. [2022-11-20 12:25:47,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 497 transitions, 2306 flow [2022-11-20 12:25:47,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 497 transitions, 2114 flow, removed 96 selfloop flow, removed 0 redundant places. [2022-11-20 12:25:47,173 INFO L231 Difference]: Finished difference. Result has 286 places, 467 transitions, 1932 flow [2022-11-20 12:25:47,174 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=1908, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1932, PETRI_PLACES=286, PETRI_TRANSITIONS=467} [2022-11-20 12:25:47,175 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 20 predicate places. [2022-11-20 12:25:47,176 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 467 transitions, 1932 flow [2022-11-20 12:25:47,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.66666666666666) internal successors, (686), 3 states have internal predecessors, (686), 0 states have call successors, (0), 0 states 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 12:25:47,177 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:25:47,177 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:25:47,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:25:47,177 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 12:25:47,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:25:47,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1146894362, now seen corresponding path program 1 times [2022-11-20 12:25:47,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:25:47,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588548691] [2022-11-20 12:25:47,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:25:47,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:25:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:25:47,751 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 12:25:47,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:25:47,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588548691] [2022-11-20 12:25:47,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588548691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:25:47,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:25:47,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:25:47,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980935991] [2022-11-20 12:25:47,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:25:47,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:25:47,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:25:47,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:25:47,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:25:47,757 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 269 [2022-11-20 12:25:47,759 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 467 transitions, 1932 flow. Second operand has 6 states, 6 states have (on average 136.16666666666666) internal successors, (817), 6 states have internal predecessors, (817), 0 states have call successors, (0), 0 states 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 12:25:47,759 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:25:47,759 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 269 [2022-11-20 12:25:47,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:25:52,894 INFO L130 PetriNetUnfolder]: 5581/16318 cut-off events. [2022-11-20 12:25:52,895 INFO L131 PetriNetUnfolder]: For 9465/9491 co-relation queries the response was YES. [2022-11-20 12:25:52,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37715 conditions, 16318 events. 5581/16318 cut-off events. For 9465/9491 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 130900 event pairs, 4152 based on Foata normal form. 0/14771 useless extension candidates. Maximal degree in co-relation 37497. Up to 11069 conditions per place. [2022-11-20 12:25:53,041 INFO L137 encePairwiseOnDemand]: 263/269 looper letters, 328 selfloop transitions, 5 changer transitions 0/466 dead transitions. [2022-11-20 12:25:53,041 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 466 transitions, 2596 flow [2022-11-20 12:25:53,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:25:53,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:25:53,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 924 transitions. [2022-11-20 12:25:53,045 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5724907063197026 [2022-11-20 12:25:53,045 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 924 transitions. [2022-11-20 12:25:53,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 924 transitions. [2022-11-20 12:25:53,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:25:53,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 924 transitions. [2022-11-20 12:25:53,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 0 states have call successors, (0), 0 states 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 12:25:53,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states 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 12:25:53,059 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states 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 12:25:53,060 INFO L175 Difference]: Start difference. First operand has 286 places, 467 transitions, 1932 flow. Second operand 6 states and 924 transitions. [2022-11-20 12:25:53,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 466 transitions, 2596 flow [2022-11-20 12:25:53,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 466 transitions, 2592 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:25:53,091 INFO L231 Difference]: Finished difference. Result has 289 places, 466 transitions, 1936 flow [2022-11-20 12:25:53,092 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=1926, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1936, PETRI_PLACES=289, PETRI_TRANSITIONS=466} [2022-11-20 12:25:53,094 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 23 predicate places. [2022-11-20 12:25:53,094 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 466 transitions, 1936 flow [2022-11-20 12:25:53,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.16666666666666) internal successors, (817), 6 states have internal predecessors, (817), 0 states have call successors, (0), 0 states 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 12:25:53,102 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:25:53,102 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] [2022-11-20 12:25:53,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:25:53,103 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 12:25:53,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:25:53,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1510380861, now seen corresponding path program 1 times [2022-11-20 12:25:53,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:25:53,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753353958] [2022-11-20 12:25:53,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:25:53,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:25:53,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:25:53,334 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 12:25:53,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:25:53,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753353958] [2022-11-20 12:25:53,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753353958] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:25:53,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087176105] [2022-11-20 12:25:53,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:25:53,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:25:53,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:25:53,343 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:25:53,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 12:25:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:25:53,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:25:53,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:25:53,747 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 12:25:53,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:25:53,920 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 12:25:53,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087176105] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:25:53,921 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:25:53,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 12:25:53,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275154297] [2022-11-20 12:25:53,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:25:53,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:25:53,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:25:53,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:25:53,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:25:53,926 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 269 [2022-11-20 12:25:53,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 466 transitions, 1936 flow. Second operand has 10 states, 10 states have (on average 230.3) internal successors, (2303), 10 states have internal predecessors, (2303), 0 states have call successors, (0), 0 states 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 12:25:53,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:25:53,929 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 269 [2022-11-20 12:25:53,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:25:55,338 INFO L130 PetriNetUnfolder]: 1071/4204 cut-off events. [2022-11-20 12:25:55,338 INFO L131 PetriNetUnfolder]: For 689/701 co-relation queries the response was YES. [2022-11-20 12:25:55,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8383 conditions, 4204 events. 1071/4204 cut-off events. For 689/701 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 26426 event pairs, 96 based on Foata normal form. 2/3972 useless extension candidates. Maximal degree in co-relation 8117. Up to 900 conditions per place. [2022-11-20 12:25:55,384 INFO L137 encePairwiseOnDemand]: 260/269 looper letters, 71 selfloop transitions, 13 changer transitions 0/509 dead transitions. [2022-11-20 12:25:55,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 509 transitions, 2208 flow [2022-11-20 12:25:55,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:25:55,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 12:25:55,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2120 transitions. [2022-11-20 12:25:55,391 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.875671210243701 [2022-11-20 12:25:55,391 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2120 transitions. [2022-11-20 12:25:55,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2120 transitions. [2022-11-20 12:25:55,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:25:55,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2120 transitions. [2022-11-20 12:25:55,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 235.55555555555554) internal successors, (2120), 9 states have internal predecessors, (2120), 0 states have call successors, (0), 0 states 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 12:25:55,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 269.0) internal successors, (2690), 10 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states 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 12:25:55,408 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 269.0) internal successors, (2690), 10 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states 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 12:25:55,409 INFO L175 Difference]: Start difference. First operand has 289 places, 466 transitions, 1936 flow. Second operand 9 states and 2120 transitions. [2022-11-20 12:25:55,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 509 transitions, 2208 flow [2022-11-20 12:25:55,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 509 transitions, 2182 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 12:25:55,435 INFO L231 Difference]: Finished difference. Result has 295 places, 473 transitions, 1994 flow [2022-11-20 12:25:55,436 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=1926, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1994, PETRI_PLACES=295, PETRI_TRANSITIONS=473} [2022-11-20 12:25:55,437 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 29 predicate places. [2022-11-20 12:25:55,437 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 473 transitions, 1994 flow [2022-11-20 12:25:55,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 230.3) internal successors, (2303), 10 states have internal predecessors, (2303), 0 states have call successors, (0), 0 states 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 12:25:55,440 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:25:55,440 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:25:55,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-20 12:25:55,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:25:55,648 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 12:25:55,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:25:55,649 INFO L85 PathProgramCache]: Analyzing trace with hash -139054691, now seen corresponding path program 2 times [2022-11-20 12:25:55,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:25:55,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200841358] [2022-11-20 12:25:55,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:25:55,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:25:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:25:56,248 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:25:56,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:25:56,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200841358] [2022-11-20 12:25:56,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200841358] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:25:56,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440460501] [2022-11-20 12:25:56,250 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:25:56,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:25:56,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:25:56,255 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:25:56,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 12:25:56,463 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:25:56,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:25:56,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-20 12:25:56,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:25:56,602 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 11 treesize of output 7 [2022-11-20 12:25:56,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:25:56,650 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 21 treesize of output 20 [2022-11-20 12:25:56,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:25:56,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:25:56,715 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:25:56,715 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 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-20 12:25:56,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:25:56,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:25:56,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:25:56,786 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:25:56,787 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 3 case distinctions, treesize of input 39 treesize of output 44 [2022-11-20 12:25:56,839 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-20 12:25:56,839 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:25:56,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440460501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:25:56,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:25:56,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2022-11-20 12:25:56,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566929150] [2022-11-20 12:25:56,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:25:56,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:25:56,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:25:56,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:25:56,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-20 12:25:56,847 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 269 [2022-11-20 12:25:56,848 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 473 transitions, 1994 flow. Second operand has 8 states, 8 states have (on average 151.375) internal successors, (1211), 8 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states 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 12:25:56,849 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:25:56,849 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 269 [2022-11-20 12:25:56,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:26:03,234 INFO L130 PetriNetUnfolder]: 6471/18504 cut-off events. [2022-11-20 12:26:03,235 INFO L131 PetriNetUnfolder]: For 5156/5338 co-relation queries the response was YES. [2022-11-20 12:26:03,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41957 conditions, 18504 events. 6471/18504 cut-off events. For 5156/5338 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 152025 event pairs, 459 based on Foata normal form. 0/16832 useless extension candidates. Maximal degree in co-relation 41668. Up to 10982 conditions per place. [2022-11-20 12:26:03,362 INFO L137 encePairwiseOnDemand]: 222/269 looper letters, 563 selfloop transitions, 174 changer transitions 0/895 dead transitions. [2022-11-20 12:26:03,362 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 895 transitions, 4684 flow [2022-11-20 12:26:03,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:26:03,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 12:26:03,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1832 transitions. [2022-11-20 12:26:03,370 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7567121024370095 [2022-11-20 12:26:03,370 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1832 transitions. [2022-11-20 12:26:03,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1832 transitions. [2022-11-20 12:26:03,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:26:03,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1832 transitions. [2022-11-20 12:26:03,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 203.55555555555554) internal successors, (1832), 9 states have internal predecessors, (1832), 0 states have call successors, (0), 0 states 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 12:26:03,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 269.0) internal successors, (2690), 10 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states 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 12:26:03,383 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 269.0) internal successors, (2690), 10 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states 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 12:26:03,384 INFO L175 Difference]: Start difference. First operand has 295 places, 473 transitions, 1994 flow. Second operand 9 states and 1832 transitions. [2022-11-20 12:26:03,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 895 transitions, 4684 flow [2022-11-20 12:26:03,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 895 transitions, 4674 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-11-20 12:26:03,422 INFO L231 Difference]: Finished difference. Result has 307 places, 635 transitions, 3464 flow [2022-11-20 12:26:03,423 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=1984, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3464, PETRI_PLACES=307, PETRI_TRANSITIONS=635} [2022-11-20 12:26:03,424 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 41 predicate places. [2022-11-20 12:26:03,424 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 635 transitions, 3464 flow [2022-11-20 12:26:03,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 151.375) internal successors, (1211), 8 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states 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 12:26:03,425 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:26:03,426 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:26:03,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:26:03,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:26:03,634 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 12:26:03,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:26:03,635 INFO L85 PathProgramCache]: Analyzing trace with hash -790940254, now seen corresponding path program 1 times [2022-11-20 12:26:03,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:26:03,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662146159] [2022-11-20 12:26:03,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:26:03,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:26:03,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:26:04,178 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:26:04,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:26:04,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662146159] [2022-11-20 12:26:04,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662146159] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:26:04,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897684768] [2022-11-20 12:26:04,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:26:04,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:26:04,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:26:04,182 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:26:04,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 12:26:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:26:04,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:26:04,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:26:04,892 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:26:04,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:26:05,210 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:26:05,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897684768] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:26:05,216 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:26:05,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-20 12:26:05,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837099489] [2022-11-20 12:26:05,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:26:05,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 12:26:05,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:26:05,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 12:26:05,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:26:05,227 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 269 [2022-11-20 12:26:05,235 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 635 transitions, 3464 flow. Second operand has 18 states, 18 states have (on average 231.05555555555554) internal successors, (4159), 18 states have internal predecessors, (4159), 0 states have call successors, (0), 0 states 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 12:26:05,235 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:26:05,236 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 269 [2022-11-20 12:26:05,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:26:08,698 INFO L130 PetriNetUnfolder]: 2012/6926 cut-off events. [2022-11-20 12:26:08,698 INFO L131 PetriNetUnfolder]: For 9080/9176 co-relation queries the response was YES. [2022-11-20 12:26:08,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19743 conditions, 6926 events. 2012/6926 cut-off events. For 9080/9176 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 46918 event pairs, 174 based on Foata normal form. 4/6568 useless extension candidates. Maximal degree in co-relation 19139. Up to 1697 conditions per place. [2022-11-20 12:26:08,767 INFO L137 encePairwiseOnDemand]: 260/269 looper letters, 171 selfloop transitions, 25 changer transitions 0/751 dead transitions. [2022-11-20 12:26:08,768 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 751 transitions, 4332 flow [2022-11-20 12:26:08,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 12:26:08,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 12:26:08,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4882 transitions. [2022-11-20 12:26:08,785 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.864223756417065 [2022-11-20 12:26:08,785 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4882 transitions. [2022-11-20 12:26:08,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4882 transitions. [2022-11-20 12:26:08,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:26:08,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4882 transitions. [2022-11-20 12:26:08,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 232.47619047619048) internal successors, (4882), 21 states have internal predecessors, (4882), 0 states have call successors, (0), 0 states 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 12:26:08,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 269.0) internal successors, (5918), 22 states have internal predecessors, (5918), 0 states have call successors, (0), 0 states 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 12:26:09,002 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 269.0) internal successors, (5918), 22 states have internal predecessors, (5918), 0 states have call successors, (0), 0 states 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 12:26:09,002 INFO L175 Difference]: Start difference. First operand has 307 places, 635 transitions, 3464 flow. Second operand 21 states and 4882 transitions. [2022-11-20 12:26:09,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 751 transitions, 4332 flow [2022-11-20 12:26:09,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 751 transitions, 4290 flow, removed 18 selfloop flow, removed 3 redundant places. [2022-11-20 12:26:09,055 INFO L231 Difference]: Finished difference. Result has 329 places, 648 transitions, 3566 flow [2022-11-20 12:26:09,057 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=3422, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=635, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=620, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3566, PETRI_PLACES=329, PETRI_TRANSITIONS=648} [2022-11-20 12:26:09,058 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 63 predicate places. [2022-11-20 12:26:09,058 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 648 transitions, 3566 flow [2022-11-20 12:26:09,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 231.05555555555554) internal successors, (4159), 18 states have internal predecessors, (4159), 0 states have call successors, (0), 0 states 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 12:26:09,060 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:26:09,061 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:26:09,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:26:09,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-20 12:26:09,268 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 12:26:09,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:26:09,269 INFO L85 PathProgramCache]: Analyzing trace with hash -571759006, now seen corresponding path program 2 times [2022-11-20 12:26:09,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:26:09,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811542623] [2022-11-20 12:26:09,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:26:09,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:26:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:26:10,640 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:26:10,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:26:10,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811542623] [2022-11-20 12:26:10,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811542623] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:26:10,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973789481] [2022-11-20 12:26:10,642 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:26:10,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:26:10,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:26:10,645 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:26:10,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 12:26:10,973 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:26:10,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:26:10,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 12:26:10,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:26:11,092 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 13 treesize of output 9 [2022-11-20 12:26:11,124 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 23 treesize of output 22 [2022-11-20 12:26:11,164 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:26:11,165 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 32 treesize of output 34 [2022-11-20 12:26:11,213 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:26:11,214 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 41 treesize of output 46 [2022-11-20 12:26:11,257 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2022-11-20 12:26:11,257 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:26:11,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973789481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:26:11,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:26:11,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-20 12:26:11,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370061020] [2022-11-20 12:26:11,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:26:11,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:26:11,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:26:11,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:26:11,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-20 12:26:11,262 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 269 [2022-11-20 12:26:11,273 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 648 transitions, 3566 flow. Second operand has 6 states, 6 states have (on average 155.16666666666666) internal successors, (931), 6 states have internal predecessors, (931), 0 states have call successors, (0), 0 states 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 12:26:11,273 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:26:11,274 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 269 [2022-11-20 12:26:11,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:26:21,028 INFO L130 PetriNetUnfolder]: 6860/20083 cut-off events. [2022-11-20 12:26:21,028 INFO L131 PetriNetUnfolder]: For 34012/34098 co-relation queries the response was YES. [2022-11-20 12:26:21,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63608 conditions, 20083 events. 6860/20083 cut-off events. For 34012/34098 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 163442 event pairs, 3402 based on Foata normal form. 0/18553 useless extension candidates. Maximal degree in co-relation 62947. Up to 12645 conditions per place. [2022-11-20 12:26:21,445 INFO L137 encePairwiseOnDemand]: 226/269 looper letters, 539 selfloop transitions, 170 changer transitions 0/883 dead transitions. [2022-11-20 12:26:21,445 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 883 transitions, 6810 flow [2022-11-20 12:26:21,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:26:21,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:26:21,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1235 transitions. [2022-11-20 12:26:21,450 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.765179677819083 [2022-11-20 12:26:21,450 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1235 transitions. [2022-11-20 12:26:21,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1235 transitions. [2022-11-20 12:26:21,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:26:21,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1235 transitions. [2022-11-20 12:26:21,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 205.83333333333334) internal successors, (1235), 6 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states 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 12:26:21,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states 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 12:26:21,460 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states 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 12:26:21,460 INFO L175 Difference]: Start difference. First operand has 329 places, 648 transitions, 3566 flow. Second operand 6 states and 1235 transitions. [2022-11-20 12:26:21,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 883 transitions, 6810 flow [2022-11-20 12:26:21,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 883 transitions, 6784 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-20 12:26:21,553 INFO L231 Difference]: Finished difference. Result has 333 places, 809 transitions, 5954 flow [2022-11-20 12:26:21,554 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=3540, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=648, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5954, PETRI_PLACES=333, PETRI_TRANSITIONS=809} [2022-11-20 12:26:21,555 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 67 predicate places. [2022-11-20 12:26:21,555 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 809 transitions, 5954 flow [2022-11-20 12:26:21,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.16666666666666) internal successors, (931), 6 states have internal predecessors, (931), 0 states have call successors, (0), 0 states 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 12:26:21,556 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:26:21,556 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:26:21,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:26:21,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-20 12:26:21,763 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 12:26:21,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:26:21,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1665642880, now seen corresponding path program 1 times [2022-11-20 12:26:21,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:26:21,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218532063] [2022-11-20 12:26:21,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:26:21,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:26:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:26:23,105 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:26:23,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:26:23,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218532063] [2022-11-20 12:26:23,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218532063] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:26:23,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459721244] [2022-11-20 12:26:23,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:26:23,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:26:23,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:26:23,107 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:26:23,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 12:26:23,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:26:23,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 1309 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 12:26:23,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:26:24,295 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:26:24,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:26:25,084 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:26:25,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459721244] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:26:25,088 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:26:25,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-20 12:26:25,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309479793] [2022-11-20 12:26:25,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:26:25,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 12:26:25,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:26:25,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 12:26:25,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-20 12:26:25,100 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 269 [2022-11-20 12:26:25,106 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 809 transitions, 5954 flow. Second operand has 23 states, 23 states have (on average 231.69565217391303) internal successors, (5329), 23 states have internal predecessors, (5329), 0 states have call successors, (0), 0 states 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 12:26:25,106 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:26:25,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 269 [2022-11-20 12:26:25,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:26:29,964 INFO L130 PetriNetUnfolder]: 2734/9296 cut-off events. [2022-11-20 12:26:29,964 INFO L131 PetriNetUnfolder]: For 21627/24094 co-relation queries the response was YES. [2022-11-20 12:26:30,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30551 conditions, 9296 events. 2734/9296 cut-off events. For 21627/24094 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 66481 event pairs, 230 based on Foata normal form. 3/8885 useless extension candidates. Maximal degree in co-relation 29661. Up to 2462 conditions per place. [2022-11-20 12:26:30,067 INFO L137 encePairwiseOnDemand]: 260/269 looper letters, 262 selfloop transitions, 34 changer transitions 0/980 dead transitions. [2022-11-20 12:26:30,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 980 transitions, 7568 flow [2022-11-20 12:26:30,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 12:26:30,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-20 12:26:30,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 6951 transitions. [2022-11-20 12:26:30,089 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8613382899628252 [2022-11-20 12:26:30,089 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 6951 transitions. [2022-11-20 12:26:30,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 6951 transitions. [2022-11-20 12:26:30,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:26:30,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 6951 transitions. [2022-11-20 12:26:30,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 231.7) internal successors, (6951), 30 states have internal predecessors, (6951), 0 states have call successors, (0), 0 states 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 12:26:30,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 269.0) internal successors, (8339), 31 states have internal predecessors, (8339), 0 states have call successors, (0), 0 states 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 12:26:30,140 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 269.0) internal successors, (8339), 31 states have internal predecessors, (8339), 0 states have call successors, (0), 0 states 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 12:26:30,141 INFO L175 Difference]: Start difference. First operand has 333 places, 809 transitions, 5954 flow. Second operand 30 states and 6951 transitions. [2022-11-20 12:26:30,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 980 transitions, 7568 flow [2022-11-20 12:26:30,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 980 transitions, 6112 flow, removed 728 selfloop flow, removed 0 redundant places. [2022-11-20 12:26:30,269 INFO L231 Difference]: Finished difference. Result has 366 places, 819 transitions, 4920 flow [2022-11-20 12:26:30,270 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=4754, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=809, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=782, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4920, PETRI_PLACES=366, PETRI_TRANSITIONS=819} [2022-11-20 12:26:30,271 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 100 predicate places. [2022-11-20 12:26:30,271 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 819 transitions, 4920 flow [2022-11-20 12:26:30,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 231.69565217391303) internal successors, (5329), 23 states have internal predecessors, (5329), 0 states have call successors, (0), 0 states 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 12:26:30,273 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:26:30,273 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:26:30,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:26:30,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b092f47-ea7b-40b2-8d44-c6efb7b6a26c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:26:30,482 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 12:26:30,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:26:30,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1541595771, now seen corresponding path program 2 times [2022-11-20 12:26:30,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:26:30,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464824081] [2022-11-20 12:26:30,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:26:30,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:26:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:26:33,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2022-11-20 12:26:33,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:26:33,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464824081] [2022-11-20 12:26:33,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464824081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:26:33,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:26:33,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 12:26:33,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25130534] [2022-11-20 12:26:33,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:26:33,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:26:33,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:26:33,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:26:33,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:26:33,696 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 269 [2022-11-20 12:26:33,698 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 819 transitions, 4920 flow. Second operand has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:26:33,698 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:26:33,698 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 269 [2022-11-20 12:26:33,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:26:47,564 INFO L130 PetriNetUnfolder]: 7942/22885 cut-off events. [2022-11-20 12:26:47,564 INFO L131 PetriNetUnfolder]: For 60319/60395 co-relation queries the response was YES. [2022-11-20 12:26:47,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76568 conditions, 22885 events. 7942/22885 cut-off events. For 60319/60395 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 189095 event pairs, 517 based on Foata normal form. 24/21360 useless extension candidates. Maximal degree in co-relation 75532. Up to 13334 conditions per place. [2022-11-20 12:26:47,770 INFO L137 encePairwiseOnDemand]: 218/269 looper letters, 865 selfloop transitions, 193 changer transitions 0/1221 dead transitions. [2022-11-20 12:26:47,770 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 1221 transitions, 9584 flow [2022-11-20 12:26:47,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:26:47,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 12:26:47,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2319 transitions. [2022-11-20 12:26:47,778 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6631398341435516 [2022-11-20 12:26:47,778 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2319 transitions. [2022-11-20 12:26:47,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2319 transitions. [2022-11-20 12:26:47,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:26:47,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2319 transitions. [2022-11-20 12:26:47,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 178.3846153846154) internal successors, (2319), 13 states have internal predecessors, (2319), 0 states have call successors, (0), 0 states 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 12:26:47,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 269.0) internal successors, (3766), 14 states have internal predecessors, (3766), 0 states have call successors, (0), 0 states 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 12:26:47,794 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 269.0) internal successors, (3766), 14 states have internal predecessors, (3766), 0 states have call successors, (0), 0 states 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 12:26:47,794 INFO L175 Difference]: Start difference. First operand has 366 places, 819 transitions, 4920 flow. Second operand 13 states and 2319 transitions. [2022-11-20 12:26:47,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 1221 transitions, 9584 flow [2022-11-20 12:26:47,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 1221 transitions, 9536 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-20 12:26:47,999 INFO L231 Difference]: Finished difference. Result has 371 places, 854 transitions, 5900 flow [2022-11-20 12:26:48,001 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=4872, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=819, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=160, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=638, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5900, PETRI_PLACES=371, PETRI_TRANSITIONS=854} [2022-11-20 12:26:48,002 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 105 predicate places. [2022-11-20 12:26:48,002 INFO L495 AbstractCegarLoop]: Abstraction has has 371 places, 854 transitions, 5900 flow [2022-11-20 12:26:48,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:26:48,003 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:26:48,003 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:26:48,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:26:48,004 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 12:26:48,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:26:48,004 INFO L85 PathProgramCache]: Analyzing trace with hash -2064029275, now seen corresponding path program 3 times [2022-11-20 12:26:48,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:26:48,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857302406] [2022-11-20 12:26:48,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:26:48,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:26:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:26:50,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2022-11-20 12:26:50,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:26:50,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857302406] [2022-11-20 12:26:50,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857302406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:26:50,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:26:50,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 12:26:50,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610031179] [2022-11-20 12:26:50,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:26:50,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:26:50,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:26:50,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:26:50,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:26:50,664 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 269 [2022-11-20 12:26:50,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 854 transitions, 5900 flow. Second operand has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:26:50,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:26:50,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 269 [2022-11-20 12:26:50,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand