./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb56a26-28ad-47fc-b4f0-640521120623/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb56a26-28ad-47fc-b4f0-640521120623/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb56a26-28ad-47fc-b4f0-640521120623/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb56a26-28ad-47fc-b4f0-640521120623/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb56a26-28ad-47fc-b4f0-640521120623/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb56a26-28ad-47fc-b4f0-640521120623/bin/uautomizer-uyxdKDjOR8 --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 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e --- 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-2329fc7 [2022-12-13 15:10:06,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:10:06,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:10:06,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:10:06,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:10:06,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:10:06,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:10:06,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:10:06,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:10:06,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:10:06,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:10:06,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:10:06,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:10:06,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:10:06,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:10:06,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:10:06,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:10:06,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:10:06,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:10:06,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:10:06,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:10:06,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:10:06,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:10:06,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:10:06,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:10:06,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:10:06,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:10:06,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:10:06,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:10:06,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:10:06,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:10:06,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:10:06,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:10:06,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:10:06,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:10:06,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:10:06,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:10:06,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:10:06,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:10:06,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:10:06,128 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:10:06,129 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb56a26-28ad-47fc-b4f0-640521120623/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 15:10:06,148 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:10:06,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:10:06,148 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:10:06,148 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:10:06,149 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:10:06,149 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:10:06,150 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:10:06,150 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:10:06,150 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:10:06,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:10:06,151 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:10:06,151 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:10:06,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:10:06,151 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:10:06,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:10:06,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:10:06,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:10:06,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:10:06,152 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 15:10:06,152 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:10:06,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:10:06,152 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:10:06,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:10:06,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:10:06,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:10:06,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:10:06,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:10:06,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:10:06,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:10:06,154 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:10:06,154 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:10:06,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:10:06,154 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:10:06,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:10:06,154 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:10:06,155 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:10:06,155 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:10:06,155 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_afb56a26-28ad-47fc-b4f0-640521120623/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb56a26-28ad-47fc-b4f0-640521120623/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e [2022-12-13 15:10:06,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:10:06,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:10:06,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:10:06,363 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:10:06,364 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:10:06,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb56a26-28ad-47fc-b4f0-640521120623/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2022-12-13 15:10:09,012 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:10:09,255 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:10:09,256 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb56a26-28ad-47fc-b4f0-640521120623/sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2022-12-13 15:10:09,273 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb56a26-28ad-47fc-b4f0-640521120623/bin/uautomizer-uyxdKDjOR8/data/909918314/a3670c15c6c44cf399033393976d8fce/FLAG237c57d3a [2022-12-13 15:10:09,287 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb56a26-28ad-47fc-b4f0-640521120623/bin/uautomizer-uyxdKDjOR8/data/909918314/a3670c15c6c44cf399033393976d8fce [2022-12-13 15:10:09,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:10:09,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:10:09,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:10:09,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:10:09,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:10:09,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:10:09" (1/1) ... [2022-12-13 15:10:09,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a6f7828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:09, skipping insertion in model container [2022-12-13 15:10:09,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:10:09" (1/1) ... [2022-12-13 15:10:09,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:10:09,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:10:09,899 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 15:10:09,905 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:10:09,907 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 15:10:09,910 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:10:09,911 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 15:10:09,911 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 15:10:09,914 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 15:10:09,915 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 15:10:09,916 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:10:09,916 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 15:10:09,917 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:10:09,918 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 15:10:09,920 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 15:10:09,923 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:10:09,923 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 15:10:09,924 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:10:09,925 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 15:10:09,926 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:10:09,926 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 15:10:09,927 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:10:09,928 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 15:10:09,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:10:09,937 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:10:09,971 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 15:10:09,972 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:10:09,973 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 15:10:09,974 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:10:09,975 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 15:10:09,975 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 15:10:09,976 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 15:10:09,976 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 15:10:09,977 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:10:09,978 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 15:10:09,978 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:10:09,979 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 15:10:09,981 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 15:10:09,982 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:10:09,983 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 15:10:09,984 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:10:09,984 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 15:10:09,985 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:10:09,986 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 15:10:09,987 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:10:09,988 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 15:10:09,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:10:10,114 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:10:10,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:10 WrapperNode [2022-12-13 15:10:10,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:10:10,115 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:10:10,115 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:10:10,115 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:10:10,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:10" (1/1) ... [2022-12-13 15:10:10,137 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:10" (1/1) ... [2022-12-13 15:10:10,154 INFO L138 Inliner]: procedures = 524, calls = 61, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 145 [2022-12-13 15:10:10,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:10:10,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:10:10,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:10:10,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:10:10,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:10" (1/1) ... [2022-12-13 15:10:10,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:10" (1/1) ... [2022-12-13 15:10:10,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:10" (1/1) ... [2022-12-13 15:10:10,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:10" (1/1) ... [2022-12-13 15:10:10,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:10" (1/1) ... [2022-12-13 15:10:10,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:10" (1/1) ... [2022-12-13 15:10:10,180 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:10" (1/1) ... [2022-12-13 15:10:10,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:10" (1/1) ... [2022-12-13 15:10:10,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:10:10,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:10:10,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:10:10,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:10:10,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:10" (1/1) ... [2022-12-13 15:10:10,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:10:10,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb56a26-28ad-47fc-b4f0-640521120623/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:10:10,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb56a26-28ad-47fc-b4f0-640521120623/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:10:10,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb56a26-28ad-47fc-b4f0-640521120623/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:10:10,240 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2022-12-13 15:10:10,240 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2022-12-13 15:10:10,240 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-12-13 15:10:10,240 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2022-12-13 15:10:10,241 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2022-12-13 15:10:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2022-12-13 15:10:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:10:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:10:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 15:10:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:10:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:10:10,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:10:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:10:10,250 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-12-13 15:10:10,250 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 15:10:10,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:10:10,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:10:10,252 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 15:10:10,475 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:10:10,476 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:10:10,714 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:10:10,724 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:10:10,724 INFO L300 CfgBuilder]: Removed 19 assume(true) statements. [2022-12-13 15:10:10,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:10:10 BoogieIcfgContainer [2022-12-13 15:10:10,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:10:10,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:10:10,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:10:10,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:10:10,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:10:09" (1/3) ... [2022-12-13 15:10:10,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cd13516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:10:10, skipping insertion in model container [2022-12-13 15:10:10,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:10" (2/3) ... [2022-12-13 15:10:10,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cd13516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:10:10, skipping insertion in model container [2022-12-13 15:10:10,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:10:10" (3/3) ... [2022-12-13 15:10:10,733 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_36-trylock_nr.i [2022-12-13 15:10:10,739 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 15:10:10,747 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:10:10,747 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-12-13 15:10:10,747 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 15:10:10,799 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 15:10:10,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 276 transitions, 568 flow [2022-12-13 15:10:10,915 INFO L130 PetriNetUnfolder]: 32/274 cut-off events. [2022-12-13 15:10:10,915 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 15:10:10,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 274 events. 32/274 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 618 event pairs, 0 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 165. Up to 5 conditions per place. [2022-12-13 15:10:10,923 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 276 transitions, 568 flow [2022-12-13 15:10:10,929 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 235 places, 257 transitions, 526 flow [2022-12-13 15:10:10,933 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:10:10,946 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 235 places, 257 transitions, 526 flow [2022-12-13 15:10:10,948 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 235 places, 257 transitions, 526 flow [2022-12-13 15:10:10,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 235 places, 257 transitions, 526 flow [2022-12-13 15:10:10,981 INFO L130 PetriNetUnfolder]: 29/257 cut-off events. [2022-12-13 15:10:10,981 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 15:10:10,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 257 events. 29/257 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 588 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 165. Up to 5 conditions per place. [2022-12-13 15:10:10,988 INFO L119 LiptonReduction]: Number of co-enabled transitions 17344 [2022-12-13 15:10:18,358 INFO L134 LiptonReduction]: Checked pairs total: 35888 [2022-12-13 15:10:18,359 INFO L136 LiptonReduction]: Total number of compositions: 254 [2022-12-13 15:10:18,369 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:10:18,373 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;@3f60b7a7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:10:18,373 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-12-13 15:10:18,375 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 15:10:18,375 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:10:18,375 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:10:18,375 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 15:10:18,376 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 15:10:18,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:10:18,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1089, now seen corresponding path program 1 times [2022-12-13 15:10:18,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:10:18,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128650884] [2022-12-13 15:10:18,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:10:18,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:10:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:10:18,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:10:18,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:10:18,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128650884] [2022-12-13 15:10:18,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128650884] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:10:18,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:10:18,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 15:10:18,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515922418] [2022-12-13 15:10:18,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:10:18,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 15:10:18,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:10:18,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 15:10:18,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:10:18,544 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 530 [2022-12-13 15:10:18,546 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 79 transitions, 170 flow. Second operand has 2 states, 2 states have (on average 245.5) internal successors, (491), 2 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:18,546 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:10:18,546 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 530 [2022-12-13 15:10:18,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:10:18,727 INFO L130 PetriNetUnfolder]: 1189/2090 cut-off events. [2022-12-13 15:10:18,727 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-12-13 15:10:18,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3932 conditions, 2090 events. 1189/2090 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 11414 event pairs, 945 based on Foata normal form. 59/1593 useless extension candidates. Maximal degree in co-relation 3741. Up to 1808 conditions per place. [2022-12-13 15:10:18,736 INFO L137 encePairwiseOnDemand]: 515/530 looper letters, 36 selfloop transitions, 0 changer transitions 1/46 dead transitions. [2022-12-13 15:10:18,737 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 46 transitions, 178 flow [2022-12-13 15:10:18,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 15:10:18,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 15:10:18,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 542 transitions. [2022-12-13 15:10:18,747 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5113207547169811 [2022-12-13 15:10:18,748 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 542 transitions. [2022-12-13 15:10:18,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 542 transitions. [2022-12-13 15:10:18,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:10:18,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 542 transitions. [2022-12-13 15:10:18,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 271.0) internal successors, (542), 2 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:18,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 530.0) internal successors, (1590), 3 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:18,759 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 530.0) internal successors, (1590), 3 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:18,760 INFO L175 Difference]: Start difference. First operand has 64 places, 79 transitions, 170 flow. Second operand 2 states and 542 transitions. [2022-12-13 15:10:18,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 46 transitions, 178 flow [2022-12-13 15:10:18,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 46 transitions, 170 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 15:10:18,764 INFO L231 Difference]: Finished difference. Result has 46 places, 45 transitions, 93 flow [2022-12-13 15:10:18,766 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=530, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=93, PETRI_PLACES=46, PETRI_TRANSITIONS=45} [2022-12-13 15:10:18,768 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -18 predicate places. [2022-12-13 15:10:18,769 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 45 transitions, 93 flow [2022-12-13 15:10:18,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 245.5) internal successors, (491), 2 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:18,769 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:10:18,769 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 15:10:18,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:10:18,769 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 15:10:18,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:10:18,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1031517469, now seen corresponding path program 1 times [2022-12-13 15:10:18,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:10:18,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793821546] [2022-12-13 15:10:18,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:10:18,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:10:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:10:18,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:10:18,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:10:18,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793821546] [2022-12-13 15:10:18,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793821546] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:10:18,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:10:18,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:10:18,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675553538] [2022-12-13 15:10:18,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:10:18,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:10:18,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:10:18,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:10:18,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:10:18,910 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 530 [2022-12-13 15:10:18,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 45 transitions, 93 flow. Second operand has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:18,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:10:18,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 530 [2022-12-13 15:10:18,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:10:19,132 INFO L130 PetriNetUnfolder]: 1189/1986 cut-off events. [2022-12-13 15:10:19,133 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 15:10:19,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3805 conditions, 1986 events. 1189/1986 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 10172 event pairs, 616 based on Foata normal form. 99/1538 useless extension candidates. Maximal degree in co-relation 3802. Up to 1221 conditions per place. [2022-12-13 15:10:19,140 INFO L137 encePairwiseOnDemand]: 524/530 looper letters, 61 selfloop transitions, 3 changer transitions 1/71 dead transitions. [2022-12-13 15:10:19,140 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 71 transitions, 276 flow [2022-12-13 15:10:19,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:10:19,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:10:19,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 731 transitions. [2022-12-13 15:10:19,142 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.459748427672956 [2022-12-13 15:10:19,143 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 731 transitions. [2022-12-13 15:10:19,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 731 transitions. [2022-12-13 15:10:19,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:10:19,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 731 transitions. [2022-12-13 15:10:19,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 243.66666666666666) internal successors, (731), 3 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:19,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 530.0) internal successors, (2120), 4 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) [2022-12-13 15:10:19,150 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 530.0) internal successors, (2120), 4 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) [2022-12-13 15:10:19,150 INFO L175 Difference]: Start difference. First operand has 46 places, 45 transitions, 93 flow. Second operand 3 states and 731 transitions. [2022-12-13 15:10:19,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 71 transitions, 276 flow [2022-12-13 15:10:19,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 71 transitions, 276 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 15:10:19,151 INFO L231 Difference]: Finished difference. Result has 45 places, 44 transitions, 104 flow [2022-12-13 15:10:19,151 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=530, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=45, PETRI_TRANSITIONS=44} [2022-12-13 15:10:19,152 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -19 predicate places. [2022-12-13 15:10:19,152 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 44 transitions, 104 flow [2022-12-13 15:10:19,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:19,152 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:10:19,152 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 15:10:19,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:10:19,152 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting counter_threadErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 15:10:19,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:10:19,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1031534332, now seen corresponding path program 1 times [2022-12-13 15:10:19,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:10:19,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689235274] [2022-12-13 15:10:19,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:10:19,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:10:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:10:19,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:10:19,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:10:19,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689235274] [2022-12-13 15:10:19,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689235274] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:10:19,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:10:19,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:10:19,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757725180] [2022-12-13 15:10:19,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:10:19,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:10:19,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:10:19,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:10:19,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:10:19,219 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 530 [2022-12-13 15:10:19,221 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 44 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:19,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:10:19,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 530 [2022-12-13 15:10:19,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:10:19,392 INFO L130 PetriNetUnfolder]: 1226/2034 cut-off events. [2022-12-13 15:10:19,392 INFO L131 PetriNetUnfolder]: For 116/116 co-relation queries the response was YES. [2022-12-13 15:10:19,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4209 conditions, 2034 events. 1226/2034 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 10227 event pairs, 345 based on Foata normal form. 0/1471 useless extension candidates. Maximal degree in co-relation 4205. Up to 1807 conditions per place. [2022-12-13 15:10:19,399 INFO L137 encePairwiseOnDemand]: 526/530 looper letters, 49 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2022-12-13 15:10:19,399 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 55 transitions, 235 flow [2022-12-13 15:10:19,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:10:19,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:10:19,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 765 transitions. [2022-12-13 15:10:19,401 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4811320754716981 [2022-12-13 15:10:19,401 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 765 transitions. [2022-12-13 15:10:19,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 765 transitions. [2022-12-13 15:10:19,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:10:19,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 765 transitions. [2022-12-13 15:10:19,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:19,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 530.0) internal successors, (2120), 4 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) [2022-12-13 15:10:19,405 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 530.0) internal successors, (2120), 4 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) [2022-12-13 15:10:19,405 INFO L175 Difference]: Start difference. First operand has 45 places, 44 transitions, 104 flow. Second operand 3 states and 765 transitions. [2022-12-13 15:10:19,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 55 transitions, 235 flow [2022-12-13 15:10:19,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 55 transitions, 235 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 15:10:19,407 INFO L231 Difference]: Finished difference. Result has 46 places, 44 transitions, 114 flow [2022-12-13 15:10:19,407 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=530, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=46, PETRI_TRANSITIONS=44} [2022-12-13 15:10:19,407 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -18 predicate places. [2022-12-13 15:10:19,407 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 44 transitions, 114 flow [2022-12-13 15:10:19,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:19,408 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:10:19,408 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 15:10:19,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 15:10:19,408 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 15:10:19,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:10:19,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1914286630, now seen corresponding path program 1 times [2022-12-13 15:10:19,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:10:19,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649972660] [2022-12-13 15:10:19,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:10:19,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:10:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:10:19,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:10:19,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:10:19,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649972660] [2022-12-13 15:10:19,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649972660] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:10:19,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:10:19,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:10:19,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122617617] [2022-12-13 15:10:19,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:10:19,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:10:19,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:10:19,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:10:19,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:10:19,603 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 530 [2022-12-13 15:10:19,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 44 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:19,604 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:10:19,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 530 [2022-12-13 15:10:19,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:10:19,787 INFO L130 PetriNetUnfolder]: 1021/1655 cut-off events. [2022-12-13 15:10:19,787 INFO L131 PetriNetUnfolder]: For 221/221 co-relation queries the response was YES. [2022-12-13 15:10:19,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3666 conditions, 1655 events. 1021/1655 cut-off events. For 221/221 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7967 event pairs, 397 based on Foata normal form. 0/1260 useless extension candidates. Maximal degree in co-relation 3661. Up to 888 conditions per place. [2022-12-13 15:10:19,793 INFO L137 encePairwiseOnDemand]: 528/530 looper letters, 61 selfloop transitions, 1 changer transitions 0/66 dead transitions. [2022-12-13 15:10:19,793 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 66 transitions, 295 flow [2022-12-13 15:10:19,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:10:19,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:10:19,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 777 transitions. [2022-12-13 15:10:19,795 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48867924528301887 [2022-12-13 15:10:19,795 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 777 transitions. [2022-12-13 15:10:19,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 777 transitions. [2022-12-13 15:10:19,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:10:19,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 777 transitions. [2022-12-13 15:10:19,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:19,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 530.0) internal successors, (2120), 4 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) [2022-12-13 15:10:19,799 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 530.0) internal successors, (2120), 4 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) [2022-12-13 15:10:19,799 INFO L175 Difference]: Start difference. First operand has 46 places, 44 transitions, 114 flow. Second operand 3 states and 777 transitions. [2022-12-13 15:10:19,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 66 transitions, 295 flow [2022-12-13 15:10:19,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 66 transitions, 295 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 15:10:19,800 INFO L231 Difference]: Finished difference. Result has 47 places, 43 transitions, 114 flow [2022-12-13 15:10:19,801 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=530, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=47, PETRI_TRANSITIONS=43} [2022-12-13 15:10:19,801 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -17 predicate places. [2022-12-13 15:10:19,801 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 43 transitions, 114 flow [2022-12-13 15:10:19,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:19,802 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:10:19,802 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:10:19,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 15:10:19,802 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting counter_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 15:10:19,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:10:19,802 INFO L85 PathProgramCache]: Analyzing trace with hash -47883110, now seen corresponding path program 1 times [2022-12-13 15:10:19,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:10:19,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777270440] [2022-12-13 15:10:19,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:10:19,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:10:19,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:10:19,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:10:19,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:10:19,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777270440] [2022-12-13 15:10:19,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777270440] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:10:19,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:10:19,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:10:19,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895724535] [2022-12-13 15:10:19,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:10:19,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:10:19,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:10:19,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:10:19,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:10:19,862 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 530 [2022-12-13 15:10:19,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 43 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:19,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:10:19,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 530 [2022-12-13 15:10:19,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:10:20,102 INFO L130 PetriNetUnfolder]: 1923/2966 cut-off events. [2022-12-13 15:10:20,102 INFO L131 PetriNetUnfolder]: For 518/518 co-relation queries the response was YES. [2022-12-13 15:10:20,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6857 conditions, 2966 events. 1923/2966 cut-off events. For 518/518 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 13334 event pairs, 627 based on Foata normal form. 0/2408 useless extension candidates. Maximal degree in co-relation 6851. Up to 1574 conditions per place. [2022-12-13 15:10:20,113 INFO L137 encePairwiseOnDemand]: 524/530 looper letters, 70 selfloop transitions, 4 changer transitions 1/76 dead transitions. [2022-12-13 15:10:20,113 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 76 transitions, 351 flow [2022-12-13 15:10:20,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:10:20,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:10:20,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 785 transitions. [2022-12-13 15:10:20,115 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4937106918238994 [2022-12-13 15:10:20,115 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 785 transitions. [2022-12-13 15:10:20,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 785 transitions. [2022-12-13 15:10:20,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:10:20,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 785 transitions. [2022-12-13 15:10:20,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 261.6666666666667) internal successors, (785), 3 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:20,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 530.0) internal successors, (2120), 4 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) [2022-12-13 15:10:20,119 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 530.0) internal successors, (2120), 4 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) [2022-12-13 15:10:20,119 INFO L175 Difference]: Start difference. First operand has 47 places, 43 transitions, 114 flow. Second operand 3 states and 785 transitions. [2022-12-13 15:10:20,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 76 transitions, 351 flow [2022-12-13 15:10:20,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 76 transitions, 349 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:10:20,122 INFO L231 Difference]: Finished difference. Result has 49 places, 45 transitions, 141 flow [2022-12-13 15:10:20,122 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=530, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=141, PETRI_PLACES=49, PETRI_TRANSITIONS=45} [2022-12-13 15:10:20,122 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -15 predicate places. [2022-12-13 15:10:20,122 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 45 transitions, 141 flow [2022-12-13 15:10:20,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:20,123 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:10:20,123 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:10:20,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 15:10:20,123 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 15:10:20,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:10:20,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1229171633, now seen corresponding path program 1 times [2022-12-13 15:10:20,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:10:20,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117653011] [2022-12-13 15:10:20,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:10:20,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:10:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:10:20,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:10:20,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:10:20,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117653011] [2022-12-13 15:10:20,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117653011] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:10:20,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:10:20,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:10:20,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475028475] [2022-12-13 15:10:20,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:10:20,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:10:20,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:10:20,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:10:20,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:10:20,186 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 530 [2022-12-13 15:10:20,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 45 transitions, 141 flow. Second operand has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:20,187 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:10:20,187 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 530 [2022-12-13 15:10:20,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:10:20,454 INFO L130 PetriNetUnfolder]: 1953/3029 cut-off events. [2022-12-13 15:10:20,454 INFO L131 PetriNetUnfolder]: For 688/698 co-relation queries the response was YES. [2022-12-13 15:10:20,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7481 conditions, 3029 events. 1953/3029 cut-off events. For 688/698 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 13613 event pairs, 1183 based on Foata normal form. 10/2385 useless extension candidates. Maximal degree in co-relation 7474. Up to 2736 conditions per place. [2022-12-13 15:10:20,464 INFO L137 encePairwiseOnDemand]: 526/530 looper letters, 55 selfloop transitions, 4 changer transitions 6/68 dead transitions. [2022-12-13 15:10:20,465 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 68 transitions, 340 flow [2022-12-13 15:10:20,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:10:20,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:10:20,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 771 transitions. [2022-12-13 15:10:20,466 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4849056603773585 [2022-12-13 15:10:20,466 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 771 transitions. [2022-12-13 15:10:20,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 771 transitions. [2022-12-13 15:10:20,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:10:20,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 771 transitions. [2022-12-13 15:10:20,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 257.0) internal successors, (771), 3 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:20,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 530.0) internal successors, (2120), 4 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) [2022-12-13 15:10:20,470 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 530.0) internal successors, (2120), 4 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) [2022-12-13 15:10:20,470 INFO L175 Difference]: Start difference. First operand has 49 places, 45 transitions, 141 flow. Second operand 3 states and 771 transitions. [2022-12-13 15:10:20,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 68 transitions, 340 flow [2022-12-13 15:10:20,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 68 transitions, 330 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 15:10:20,473 INFO L231 Difference]: Finished difference. Result has 50 places, 46 transitions, 156 flow [2022-12-13 15:10:20,473 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=530, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=50, PETRI_TRANSITIONS=46} [2022-12-13 15:10:20,473 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -14 predicate places. [2022-12-13 15:10:20,473 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 46 transitions, 156 flow [2022-12-13 15:10:20,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:20,474 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:10:20,474 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:10:20,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 15:10:20,474 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 15:10:20,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:10:20,474 INFO L85 PathProgramCache]: Analyzing trace with hash 553001492, now seen corresponding path program 1 times [2022-12-13 15:10:20,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:10:20,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702529575] [2022-12-13 15:10:20,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:10:20,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:10:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:10:20,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:10:20,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:10:20,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702529575] [2022-12-13 15:10:20,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702529575] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:10:20,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:10:20,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:10:20,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775449979] [2022-12-13 15:10:20,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:10:20,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:10:20,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:10:20,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:10:20,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:10:20,641 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 530 [2022-12-13 15:10:20,642 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 46 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:20,642 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:10:20,642 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 530 [2022-12-13 15:10:20,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:10:20,873 INFO L130 PetriNetUnfolder]: 1828/2824 cut-off events. [2022-12-13 15:10:20,873 INFO L131 PetriNetUnfolder]: For 821/871 co-relation queries the response was YES. [2022-12-13 15:10:20,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7230 conditions, 2824 events. 1828/2824 cut-off events. For 821/871 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 12575 event pairs, 1156 based on Foata normal form. 0/2262 useless extension candidates. Maximal degree in co-relation 7222. Up to 2681 conditions per place. [2022-12-13 15:10:20,881 INFO L137 encePairwiseOnDemand]: 528/530 looper letters, 40 selfloop transitions, 1 changer transitions 12/57 dead transitions. [2022-12-13 15:10:20,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 57 transitions, 297 flow [2022-12-13 15:10:20,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:10:20,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:10:20,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 761 transitions. [2022-12-13 15:10:20,882 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47861635220125787 [2022-12-13 15:10:20,882 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 761 transitions. [2022-12-13 15:10:20,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 761 transitions. [2022-12-13 15:10:20,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:10:20,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 761 transitions. [2022-12-13 15:10:20,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 253.66666666666666) internal successors, (761), 3 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:20,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 530.0) internal successors, (2120), 4 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) [2022-12-13 15:10:20,886 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 530.0) internal successors, (2120), 4 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) [2022-12-13 15:10:20,886 INFO L175 Difference]: Start difference. First operand has 50 places, 46 transitions, 156 flow. Second operand 3 states and 761 transitions. [2022-12-13 15:10:20,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 57 transitions, 297 flow [2022-12-13 15:10:20,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 293 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:10:20,889 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 152 flow [2022-12-13 15:10:20,889 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=530, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2022-12-13 15:10:20,889 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -16 predicate places. [2022-12-13 15:10:20,890 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 152 flow [2022-12-13 15:10:20,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:20,890 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:10:20,890 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:10:20,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 15:10:20,890 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 15:10:20,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:10:20,890 INFO L85 PathProgramCache]: Analyzing trace with hash -471318971, now seen corresponding path program 1 times [2022-12-13 15:10:20,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:10:20,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285082887] [2022-12-13 15:10:20,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:10:20,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:10:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:10:20,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:10:20,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:10:20,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285082887] [2022-12-13 15:10:20,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285082887] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:10:20,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:10:20,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:10:20,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816510534] [2022-12-13 15:10:20,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:10:20,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:10:20,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:10:20,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:10:20,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:10:21,001 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 530 [2022-12-13 15:10:21,003 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 152 flow. Second operand has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:21,003 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:10:21,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 530 [2022-12-13 15:10:21,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:10:21,441 INFO L130 PetriNetUnfolder]: 3589/5395 cut-off events. [2022-12-13 15:10:21,441 INFO L131 PetriNetUnfolder]: For 1629/1704 co-relation queries the response was YES. [2022-12-13 15:10:21,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13556 conditions, 5395 events. 3589/5395 cut-off events. For 1629/1704 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 26206 event pairs, 679 based on Foata normal form. 76/4276 useless extension candidates. Maximal degree in co-relation 13548. Up to 2080 conditions per place. [2022-12-13 15:10:21,464 INFO L137 encePairwiseOnDemand]: 523/530 looper letters, 87 selfloop transitions, 9 changer transitions 14/114 dead transitions. [2022-12-13 15:10:21,464 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 114 transitions, 587 flow [2022-12-13 15:10:21,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:10:21,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 15:10:21,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1259 transitions. [2022-12-13 15:10:21,466 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4750943396226415 [2022-12-13 15:10:21,467 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1259 transitions. [2022-12-13 15:10:21,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1259 transitions. [2022-12-13 15:10:21,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:10:21,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1259 transitions. [2022-12-13 15:10:21,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 251.8) internal successors, (1259), 5 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:21,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 530.0) internal successors, (3180), 6 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:21,471 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 530.0) internal successors, (3180), 6 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:21,471 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 152 flow. Second operand 5 states and 1259 transitions. [2022-12-13 15:10:21,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 114 transitions, 587 flow [2022-12-13 15:10:21,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 114 transitions, 585 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:10:21,474 INFO L231 Difference]: Finished difference. Result has 55 places, 53 transitions, 231 flow [2022-12-13 15:10:21,474 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=530, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=231, PETRI_PLACES=55, PETRI_TRANSITIONS=53} [2022-12-13 15:10:21,475 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -9 predicate places. [2022-12-13 15:10:21,475 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 231 flow [2022-12-13 15:10:21,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:21,476 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:10:21,476 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:10:21,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 15:10:21,476 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 15:10:21,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:10:21,476 INFO L85 PathProgramCache]: Analyzing trace with hash 714614651, now seen corresponding path program 2 times [2022-12-13 15:10:21,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:10:21,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006181998] [2022-12-13 15:10:21,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:10:21,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:10:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:10:21,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:10:21,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:10:21,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006181998] [2022-12-13 15:10:21,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006181998] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:10:21,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:10:21,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:10:21,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208867074] [2022-12-13 15:10:21,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:10:21,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:10:21,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:10:21,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:10:21,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:10:21,601 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 530 [2022-12-13 15:10:21,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 53 transitions, 231 flow. Second operand has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:21,602 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:10:21,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 530 [2022-12-13 15:10:21,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:10:22,060 INFO L130 PetriNetUnfolder]: 4146/6319 cut-off events. [2022-12-13 15:10:22,060 INFO L131 PetriNetUnfolder]: For 4738/4823 co-relation queries the response was YES. [2022-12-13 15:10:22,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19020 conditions, 6319 events. 4146/6319 cut-off events. For 4738/4823 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 31668 event pairs, 811 based on Foata normal form. 71/5297 useless extension candidates. Maximal degree in co-relation 19009. Up to 2988 conditions per place. [2022-12-13 15:10:22,083 INFO L137 encePairwiseOnDemand]: 521/530 looper letters, 83 selfloop transitions, 16 changer transitions 8/111 dead transitions. [2022-12-13 15:10:22,083 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 111 transitions, 670 flow [2022-12-13 15:10:22,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:10:22,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 15:10:22,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1015 transitions. [2022-12-13 15:10:22,086 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47877358490566035 [2022-12-13 15:10:22,087 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1015 transitions. [2022-12-13 15:10:22,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1015 transitions. [2022-12-13 15:10:22,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:10:22,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1015 transitions. [2022-12-13 15:10:22,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 253.75) internal successors, (1015), 4 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:22,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 530.0) internal successors, (2650), 5 states have internal predecessors, (2650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:22,095 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 530.0) internal successors, (2650), 5 states have internal predecessors, (2650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:22,095 INFO L175 Difference]: Start difference. First operand has 55 places, 53 transitions, 231 flow. Second operand 4 states and 1015 transitions. [2022-12-13 15:10:22,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 111 transitions, 670 flow [2022-12-13 15:10:22,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 111 transitions, 670 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 15:10:22,102 INFO L231 Difference]: Finished difference. Result has 61 places, 63 transitions, 366 flow [2022-12-13 15:10:22,102 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=530, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=366, PETRI_PLACES=61, PETRI_TRANSITIONS=63} [2022-12-13 15:10:22,103 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -3 predicate places. [2022-12-13 15:10:22,103 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 63 transitions, 366 flow [2022-12-13 15:10:22,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:22,104 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:10:22,104 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:10:22,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 15:10:22,104 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 15:10:22,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:10:22,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1297286899, now seen corresponding path program 3 times [2022-12-13 15:10:22,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:10:22,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284752200] [2022-12-13 15:10:22,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:10:22,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:10:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:10:22,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:10:22,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:10:22,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284752200] [2022-12-13 15:10:22,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284752200] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:10:22,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:10:22,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:10:22,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268102886] [2022-12-13 15:10:22,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:10:22,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:10:22,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:10:22,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:10:22,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:10:22,252 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 530 [2022-12-13 15:10:22,253 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 63 transitions, 366 flow. Second operand has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:22,253 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:10:22,253 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 530 [2022-12-13 15:10:22,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:10:22,588 INFO L130 PetriNetUnfolder]: 2957/4532 cut-off events. [2022-12-13 15:10:22,588 INFO L131 PetriNetUnfolder]: For 4780/4780 co-relation queries the response was YES. [2022-12-13 15:10:22,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14483 conditions, 4532 events. 2957/4532 cut-off events. For 4780/4780 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 22415 event pairs, 831 based on Foata normal form. 5/3634 useless extension candidates. Maximal degree in co-relation 14469. Up to 1590 conditions per place. [2022-12-13 15:10:22,595 INFO L137 encePairwiseOnDemand]: 523/530 looper letters, 0 selfloop transitions, 0 changer transitions 95/95 dead transitions. [2022-12-13 15:10:22,595 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 95 transitions, 624 flow [2022-12-13 15:10:22,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:10:22,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 15:10:22,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1006 transitions. [2022-12-13 15:10:22,599 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47452830188679246 [2022-12-13 15:10:22,599 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1006 transitions. [2022-12-13 15:10:22,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1006 transitions. [2022-12-13 15:10:22,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:10:22,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1006 transitions. [2022-12-13 15:10:22,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 251.5) internal successors, (1006), 4 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:22,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 530.0) internal successors, (2650), 5 states have internal predecessors, (2650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:22,603 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 530.0) internal successors, (2650), 5 states have internal predecessors, (2650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:22,603 INFO L175 Difference]: Start difference. First operand has 61 places, 63 transitions, 366 flow. Second operand 4 states and 1006 transitions. [2022-12-13 15:10:22,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 95 transitions, 624 flow [2022-12-13 15:10:22,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 95 transitions, 579 flow, removed 11 selfloop flow, removed 4 redundant places. [2022-12-13 15:10:22,614 INFO L231 Difference]: Finished difference. Result has 58 places, 0 transitions, 0 flow [2022-12-13 15:10:22,614 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=530, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=58, PETRI_TRANSITIONS=0} [2022-12-13 15:10:22,614 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -6 predicate places. [2022-12-13 15:10:22,614 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 0 transitions, 0 flow [2022-12-13 15:10:22,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:22,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (26 of 27 remaining) [2022-12-13 15:10:22,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2022-12-13 15:10:22,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2022-12-13 15:10:22,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2022-12-13 15:10:22,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2022-12-13 15:10:22,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2022-12-13 15:10:22,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2022-12-13 15:10:22,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2022-12-13 15:10:22,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2022-12-13 15:10:22,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2022-12-13 15:10:22,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2022-12-13 15:10:22,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2022-12-13 15:10:22,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2022-12-13 15:10:22,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2022-12-13 15:10:22,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2022-12-13 15:10:22,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2022-12-13 15:10:22,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 27 remaining) [2022-12-13 15:10:22,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 27 remaining) [2022-12-13 15:10:22,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2022-12-13 15:10:22,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2022-12-13 15:10:22,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2022-12-13 15:10:22,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2022-12-13 15:10:22,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2022-12-13 15:10:22,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2022-12-13 15:10:22,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2022-12-13 15:10:22,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2022-12-13 15:10:22,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2022-12-13 15:10:22,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 15:10:22,620 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:10:22,624 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 15:10:22,624 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:10:22,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:10:22 BasicIcfg [2022-12-13 15:10:22,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:10:22,627 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:10:22,627 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:10:22,627 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:10:22,627 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:10:10" (3/4) ... [2022-12-13 15:10:22,629 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 15:10:22,633 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure monitor_thread [2022-12-13 15:10:22,633 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure counter_thread [2022-12-13 15:10:22,636 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2022-12-13 15:10:22,636 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-13 15:10:22,636 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 15:10:22,637 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 15:10:22,637 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 15:10:22,663 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb56a26-28ad-47fc-b4f0-640521120623/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 15:10:22,664 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:10:22,664 INFO L158 Benchmark]: Toolchain (without parser) took 13373.42ms. Allocated memory was 123.7MB in the beginning and 283.1MB in the end (delta: 159.4MB). Free memory was 80.3MB in the beginning and 94.7MB in the end (delta: -14.4MB). Peak memory consumption was 146.9MB. Max. memory is 16.1GB. [2022-12-13 15:10:22,664 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 123.7MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:10:22,664 INFO L158 Benchmark]: CACSL2BoogieTranslator took 822.44ms. Allocated memory is still 123.7MB. Free memory was 79.9MB in the beginning and 56.1MB in the end (delta: 23.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-12-13 15:10:22,665 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.91ms. Allocated memory is still 123.7MB. Free memory was 56.0MB in the beginning and 52.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 15:10:22,665 INFO L158 Benchmark]: Boogie Preprocessor took 30.55ms. Allocated memory is still 123.7MB. Free memory was 52.4MB in the beginning and 49.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 15:10:22,665 INFO L158 Benchmark]: RCFGBuilder took 540.17ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 49.2MB in the beginning and 90.4MB in the end (delta: -41.2MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2022-12-13 15:10:22,665 INFO L158 Benchmark]: TraceAbstraction took 11897.82ms. Allocated memory was 148.9MB in the beginning and 283.1MB in the end (delta: 134.2MB). Free memory was 89.7MB in the beginning and 98.9MB in the end (delta: -9.2MB). Peak memory consumption was 163.2MB. Max. memory is 16.1GB. [2022-12-13 15:10:22,665 INFO L158 Benchmark]: Witness Printer took 36.95ms. Allocated memory is still 283.1MB. Free memory was 98.9MB in the beginning and 94.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 15:10:22,667 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 123.7MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 822.44ms. Allocated memory is still 123.7MB. Free memory was 79.9MB in the beginning and 56.1MB in the end (delta: 23.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.91ms. Allocated memory is still 123.7MB. Free memory was 56.0MB in the beginning and 52.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.55ms. Allocated memory is still 123.7MB. Free memory was 52.4MB in the beginning and 49.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 540.17ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 49.2MB in the beginning and 90.4MB in the end (delta: -41.2MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * TraceAbstraction took 11897.82ms. Allocated memory was 148.9MB in the beginning and 283.1MB in the end (delta: 134.2MB). Free memory was 89.7MB in the beginning and 98.9MB in the end (delta: -9.2MB). Peak memory consumption was 163.2MB. Max. memory is 16.1GB. * Witness Printer took 36.95ms. Allocated memory is still 283.1MB. Free memory was 98.9MB in the beginning and 94.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.4s, 235 PlacesBefore, 64 PlacesAfterwards, 257 TransitionsBefore, 79 TransitionsAfterwards, 17344 CoEnabledTransitionPairs, 7 FixpointIterations, 71 TrivialSequentialCompositions, 134 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 40 ConcurrentYvCompositions, 7 ChoiceCompositions, 254 TotalNumberOfCompositions, 35888 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20084, independent: 19647, independent conditional: 0, independent unconditional: 19647, dependent: 437, dependent conditional: 0, dependent unconditional: 437, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 10685, independent: 10579, independent conditional: 0, independent unconditional: 10579, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 20084, independent: 9068, independent conditional: 0, independent unconditional: 9068, dependent: 331, dependent conditional: 0, dependent unconditional: 331, unknown: 10685, unknown conditional: 0, unknown unconditional: 10685] , Statistics on independence cache: Total cache size (in pairs): 626, Positive cache size: 576, Positive conditional cache size: 0, Positive unconditional cache size: 576, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1819]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1824]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1825]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1828]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1803]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1806]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1808]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1811]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1808]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1843]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1846]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1849]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1850]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1852]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1853]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1855]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 350 locations, 27 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.8s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 571 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 365 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 106 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1188 IncrementalHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 106 mSolverCounterUnsat, 46 mSDtfsCounter, 1188 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=366occurred in iteration=9, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 185 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 15:10:22,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb56a26-28ad-47fc-b4f0-640521120623/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE