./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3dff82-1f4b-46b7-b596-a0543561271f/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3dff82-1f4b-46b7-b596-a0543561271f/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_7a3dff82-1f4b-46b7-b596-a0543561271f/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3dff82-1f4b-46b7-b596-a0543561271f/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3dff82-1f4b-46b7-b596-a0543561271f/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_7a3dff82-1f4b-46b7-b596-a0543561271f/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 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b --- 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 20:54:41,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:54:41,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:54:41,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:54:41,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:54:41,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:54:41,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:54:41,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:54:41,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:54:41,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:54:41,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:54:41,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:54:41,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:54:41,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:54:41,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:54:41,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:54:41,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:54:41,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:54:41,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:54:41,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:54:41,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:54:41,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:54:41,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:54:41,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:54:41,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:54:41,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:54:41,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:54:41,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:54:41,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:54:41,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:54:41,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:54:41,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:54:41,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:54:41,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:54:41,132 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:54:41,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:54:41,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:54:41,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:54:41,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:54:41,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:54:41,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:54:41,135 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3dff82-1f4b-46b7-b596-a0543561271f/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 20:54:41,154 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:54:41,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:54:41,154 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:54:41,154 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:54:41,155 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:54:41,155 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:54:41,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:54:41,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:54:41,156 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:54:41,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:54:41,156 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:54:41,156 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:54:41,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:54:41,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:54:41,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:54:41,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:54:41,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:54:41,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:54:41,164 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 20:54:41,164 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:54:41,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:54:41,165 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:54:41,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:54:41,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:54:41,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:54:41,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:54:41,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:54:41,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:54:41,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:54:41,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:54:41,166 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:54:41,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:54:41,166 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:54:41,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:54:41,166 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:54:41,166 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:54:41,166 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:54:41,167 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_7a3dff82-1f4b-46b7-b596-a0543561271f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3dff82-1f4b-46b7-b596-a0543561271f/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b [2022-12-13 20:54:41,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:54:41,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:54:41,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:54:41,375 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:54:41,376 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:54:41,377 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3dff82-1f4b-46b7-b596-a0543561271f/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2022-12-13 20:54:43,921 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:54:44,096 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:54:44,097 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3dff82-1f4b-46b7-b596-a0543561271f/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2022-12-13 20:54:44,105 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3dff82-1f4b-46b7-b596-a0543561271f/bin/uautomizer-uyxdKDjOR8/data/43f3a9e26/fee3cc0ef7e34149a8bf44e5b68c1c0d/FLAGafff18053 [2022-12-13 20:54:44,487 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3dff82-1f4b-46b7-b596-a0543561271f/bin/uautomizer-uyxdKDjOR8/data/43f3a9e26/fee3cc0ef7e34149a8bf44e5b68c1c0d [2022-12-13 20:54:44,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:54:44,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:54:44,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:54:44,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:54:44,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:54:44,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:54:44" (1/1) ... [2022-12-13 20:54:44,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c56c131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:44, skipping insertion in model container [2022-12-13 20:54:44,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:54:44" (1/1) ... [2022-12-13 20:54:44,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:54:44,531 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:54:44,651 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:54:44,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:54:44,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:54:44,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:54:44,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:54:44,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:54:44,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:54:44,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:54:44,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:54:44,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:54:44,743 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:54:44,744 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3dff82-1f4b-46b7-b596-a0543561271f/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i[31246,31259] [2022-12-13 20:54:44,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:54:44,756 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:54:44,766 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:54:44,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:54:44,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:54:44,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:54:44,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:54:44,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:54:44,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:54:44,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:54:44,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:54:44,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:54:44,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:54:44,784 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3dff82-1f4b-46b7-b596-a0543561271f/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i[31246,31259] [2022-12-13 20:54:44,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:54:44,810 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:54:44,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:44 WrapperNode [2022-12-13 20:54:44,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:54:44,811 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:54:44,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:54:44,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:54:44,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:44" (1/1) ... [2022-12-13 20:54:44,826 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:44" (1/1) ... [2022-12-13 20:54:44,843 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 178 [2022-12-13 20:54:44,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:54:44,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:54:44,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:54:44,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:54:44,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:44" (1/1) ... [2022-12-13 20:54:44,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:44" (1/1) ... [2022-12-13 20:54:44,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:44" (1/1) ... [2022-12-13 20:54:44,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:44" (1/1) ... [2022-12-13 20:54:44,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:44" (1/1) ... [2022-12-13 20:54:44,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:44" (1/1) ... [2022-12-13 20:54:44,862 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:44" (1/1) ... [2022-12-13 20:54:44,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:44" (1/1) ... [2022-12-13 20:54:44,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:54:44,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:54:44,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:54:44,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:54:44,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:44" (1/1) ... [2022-12-13 20:54:44,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:54:44,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3dff82-1f4b-46b7-b596-a0543561271f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:54:44,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3dff82-1f4b-46b7-b596-a0543561271f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:54:44,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3dff82-1f4b-46b7-b596-a0543561271f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:54:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 20:54:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:54:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 20:54:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:54:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2022-12-13 20:54:44,915 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2022-12-13 20:54:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:54:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:54:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:54:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 20:54:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:54:44,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:54:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2022-12-13 20:54:44,915 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2022-12-13 20:54:44,916 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 20:54:45,014 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:54:45,016 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:54:45,252 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:54:45,320 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:54:45,320 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:54:45,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:54:45 BoogieIcfgContainer [2022-12-13 20:54:45,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:54:45,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:54:45,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:54:45,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:54:45,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:54:44" (1/3) ... [2022-12-13 20:54:45,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db7fb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:54:45, skipping insertion in model container [2022-12-13 20:54:45,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:44" (2/3) ... [2022-12-13 20:54:45,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db7fb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:54:45, skipping insertion in model container [2022-12-13 20:54:45,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:54:45" (3/3) ... [2022-12-13 20:54:45,328 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2022-12-13 20:54:45,335 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 20:54:45,343 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:54:45,343 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-12-13 20:54:45,343 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 20:54:45,402 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-13 20:54:45,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 170 transitions, 372 flow [2022-12-13 20:54:45,478 INFO L130 PetriNetUnfolder]: 2/166 cut-off events. [2022-12-13 20:54:45,478 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-13 20:54:45,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 166 events. 2/166 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 251 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2022-12-13 20:54:45,484 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 170 transitions, 372 flow [2022-12-13 20:54:45,488 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 152 transitions, 325 flow [2022-12-13 20:54:45,491 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 20:54:45,499 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 163 places, 152 transitions, 325 flow [2022-12-13 20:54:45,501 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 163 places, 152 transitions, 325 flow [2022-12-13 20:54:45,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 152 transitions, 325 flow [2022-12-13 20:54:45,526 INFO L130 PetriNetUnfolder]: 2/152 cut-off events. [2022-12-13 20:54:45,526 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 20:54:45,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 152 events. 2/152 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 251 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2022-12-13 20:54:45,530 INFO L119 LiptonReduction]: Number of co-enabled transitions 8762 [2022-12-13 20:54:48,073 INFO L134 LiptonReduction]: Checked pairs total: 31047 [2022-12-13 20:54:48,073 INFO L136 LiptonReduction]: Total number of compositions: 109 [2022-12-13 20:54:48,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:54:48,087 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;@2bb6fe68, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:54:48,087 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2022-12-13 20:54:48,089 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2022-12-13 20:54:48,089 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:54:48,089 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:54:48,090 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 20:54:48,090 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr2ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-12-13 20:54:48,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:54:48,093 INFO L85 PathProgramCache]: Analyzing trace with hash 642856, now seen corresponding path program 1 times [2022-12-13 20:54:48,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:54:48,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118757829] [2022-12-13 20:54:48,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:54:48,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:54:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:48,219 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 20:54:48,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:54:48,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118757829] [2022-12-13 20:54:48,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118757829] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:54:48,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:54:48,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:54:48,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139150746] [2022-12-13 20:54:48,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:54:48,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 20:54:48,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:54:48,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 20:54:48,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 20:54:48,244 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 279 [2022-12-13 20:54:48,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 69 transitions, 159 flow. Second operand has 2 states, 2 states have (on average 119.5) internal successors, (239), 2 states have internal predecessors, (239), 0 states have call successors, (0), 0 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 20:54:48,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:54:48,246 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 279 [2022-12-13 20:54:48,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:54:49,167 INFO L130 PetriNetUnfolder]: 9240/12779 cut-off events. [2022-12-13 20:54:49,167 INFO L131 PetriNetUnfolder]: For 884/884 co-relation queries the response was YES. [2022-12-13 20:54:49,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26199 conditions, 12779 events. 9240/12779 cut-off events. For 884/884 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 63945 event pairs, 9240 based on Foata normal form. 0/12748 useless extension candidates. Maximal degree in co-relation 22032. Up to 12696 conditions per place. [2022-12-13 20:54:49,212 INFO L137 encePairwiseOnDemand]: 249/279 looper letters, 33 selfloop transitions, 0 changer transitions 2/39 dead transitions. [2022-12-13 20:54:49,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 39 transitions, 169 flow [2022-12-13 20:54:49,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 20:54:49,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 20:54:49,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 301 transitions. [2022-12-13 20:54:49,224 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5394265232974911 [2022-12-13 20:54:49,225 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 301 transitions. [2022-12-13 20:54:49,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 301 transitions. [2022-12-13 20:54:49,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:54:49,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 301 transitions. [2022-12-13 20:54:49,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 150.5) internal successors, (301), 2 states have internal predecessors, (301), 0 states have call successors, (0), 0 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 20:54:49,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 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 20:54:49,236 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 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 20:54:49,237 INFO L175 Difference]: Start difference. First operand has 82 places, 69 transitions, 159 flow. Second operand 2 states and 301 transitions. [2022-12-13 20:54:49,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 39 transitions, 169 flow [2022-12-13 20:54:49,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 39 transitions, 156 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-12-13 20:54:49,247 INFO L231 Difference]: Finished difference. Result has 46 places, 37 transitions, 81 flow [2022-12-13 20:54:49,249 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=81, PETRI_PLACES=46, PETRI_TRANSITIONS=37} [2022-12-13 20:54:49,252 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -36 predicate places. [2022-12-13 20:54:49,252 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 81 flow [2022-12-13 20:54:49,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 119.5) internal successors, (239), 2 states have internal predecessors, (239), 0 states have call successors, (0), 0 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 20:54:49,252 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:54:49,252 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 20:54:49,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:54:49,253 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-12-13 20:54:49,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:54:49,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1971838853, now seen corresponding path program 1 times [2022-12-13 20:54:49,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:54:49,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775700681] [2022-12-13 20:54:49,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:54:49,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:54:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:49,323 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 20:54:49,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:54:49,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775700681] [2022-12-13 20:54:49,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775700681] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:54:49,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:54:49,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:54:49,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251811772] [2022-12-13 20:54:49,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:54:49,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:54:49,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:54:49,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:54:49,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:54:49,337 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 279 [2022-12-13 20:54:49,337 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 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 20:54:49,337 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:54:49,337 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 279 [2022-12-13 20:54:49,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:54:50,547 INFO L130 PetriNetUnfolder]: 15015/20493 cut-off events. [2022-12-13 20:54:50,547 INFO L131 PetriNetUnfolder]: For 254/254 co-relation queries the response was YES. [2022-12-13 20:54:50,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41531 conditions, 20493 events. 15015/20493 cut-off events. For 254/254 co-relation queries the response was YES. Maximal size of possible extension queue 575. Compared 101881 event pairs, 12155 based on Foata normal form. 0/19846 useless extension candidates. Maximal degree in co-relation 41528. Up to 18163 conditions per place. [2022-12-13 20:54:50,604 INFO L137 encePairwiseOnDemand]: 271/279 looper letters, 53 selfloop transitions, 7 changer transitions 0/62 dead transitions. [2022-12-13 20:54:50,604 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 62 transitions, 255 flow [2022-12-13 20:54:50,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:54:50,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:54:50,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2022-12-13 20:54:50,606 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4743130227001195 [2022-12-13 20:54:50,606 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2022-12-13 20:54:50,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2022-12-13 20:54:50,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:54:50,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2022-12-13 20:54:50,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 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 20:54:50,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 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 20:54:50,609 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 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 20:54:50,609 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 81 flow. Second operand 3 states and 397 transitions. [2022-12-13 20:54:50,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 62 transitions, 255 flow [2022-12-13 20:54:50,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 62 transitions, 255 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 20:54:50,610 INFO L231 Difference]: Finished difference. Result has 47 places, 43 transitions, 128 flow [2022-12-13 20:54:50,610 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=47, PETRI_TRANSITIONS=43} [2022-12-13 20:54:50,611 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -35 predicate places. [2022-12-13 20:54:50,611 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 43 transitions, 128 flow [2022-12-13 20:54:50,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 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 20:54:50,611 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:54:50,611 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:54:50,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:54:50,612 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-12-13 20:54:50,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:54:50,612 INFO L85 PathProgramCache]: Analyzing trace with hash 449742282, now seen corresponding path program 1 times [2022-12-13 20:54:50,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:54:50,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626243240] [2022-12-13 20:54:50,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:54:50,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:54:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:50,693 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 20:54:50,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:54:50,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626243240] [2022-12-13 20:54:50,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626243240] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:54:50,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:54:50,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:54:50,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887423066] [2022-12-13 20:54:50,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:54:50,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:54:50,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:54:50,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:54:50,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:54:50,696 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 279 [2022-12-13 20:54:50,696 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 43 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 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 20:54:50,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:54:50,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 279 [2022-12-13 20:54:50,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:54:51,390 INFO L130 PetriNetUnfolder]: 5653/9352 cut-off events. [2022-12-13 20:54:51,390 INFO L131 PetriNetUnfolder]: For 2268/2380 co-relation queries the response was YES. [2022-12-13 20:54:51,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21173 conditions, 9352 events. 5653/9352 cut-off events. For 2268/2380 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 61880 event pairs, 1505 based on Foata normal form. 1298/10572 useless extension candidates. Maximal degree in co-relation 21168. Up to 6166 conditions per place. [2022-12-13 20:54:51,423 INFO L137 encePairwiseOnDemand]: 273/279 looper letters, 55 selfloop transitions, 4 changer transitions 0/63 dead transitions. [2022-12-13 20:54:51,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 63 transitions, 297 flow [2022-12-13 20:54:51,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:54:51,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:54:51,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 409 transitions. [2022-12-13 20:54:51,425 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4886499402628435 [2022-12-13 20:54:51,425 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 409 transitions. [2022-12-13 20:54:51,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 409 transitions. [2022-12-13 20:54:51,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:54:51,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 409 transitions. [2022-12-13 20:54:51,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 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 20:54:51,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 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 20:54:51,429 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 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 20:54:51,429 INFO L175 Difference]: Start difference. First operand has 47 places, 43 transitions, 128 flow. Second operand 3 states and 409 transitions. [2022-12-13 20:54:51,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 63 transitions, 297 flow [2022-12-13 20:54:51,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 63 transitions, 291 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:54:51,467 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 133 flow [2022-12-13 20:54:51,467 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2022-12-13 20:54:51,468 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -33 predicate places. [2022-12-13 20:54:51,468 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 133 flow [2022-12-13 20:54:51,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 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 20:54:51,468 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:54:51,468 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:54:51,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 20:54:51,469 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-12-13 20:54:51,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:54:51,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1431267328, now seen corresponding path program 2 times [2022-12-13 20:54:51,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:54:51,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410700509] [2022-12-13 20:54:51,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:54:51,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:54:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:51,529 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 20:54:51,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:54:51,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410700509] [2022-12-13 20:54:51,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410700509] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:54:51,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:54:51,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:54:51,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416668310] [2022-12-13 20:54:51,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:54:51,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:54:51,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:54:51,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:54:51,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:54:51,532 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 279 [2022-12-13 20:54:51,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 133 flow. Second operand has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 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 20:54:51,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:54:51,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 279 [2022-12-13 20:54:51,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:54:51,843 INFO L130 PetriNetUnfolder]: 2232/4016 cut-off events. [2022-12-13 20:54:51,843 INFO L131 PetriNetUnfolder]: For 2737/2749 co-relation queries the response was YES. [2022-12-13 20:54:51,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9770 conditions, 4016 events. 2232/4016 cut-off events. For 2737/2749 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 24952 event pairs, 720 based on Foata normal form. 470/4457 useless extension candidates. Maximal degree in co-relation 9764. Up to 1857 conditions per place. [2022-12-13 20:54:51,852 INFO L137 encePairwiseOnDemand]: 272/279 looper letters, 78 selfloop transitions, 9 changer transitions 2/93 dead transitions. [2022-12-13 20:54:51,852 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 93 transitions, 465 flow [2022-12-13 20:54:51,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:54:51,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 20:54:51,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 553 transitions. [2022-12-13 20:54:51,853 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49551971326164873 [2022-12-13 20:54:51,853 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 553 transitions. [2022-12-13 20:54:51,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 553 transitions. [2022-12-13 20:54:51,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:54:51,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 553 transitions. [2022-12-13 20:54:51,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 138.25) internal successors, (553), 4 states have internal predecessors, (553), 0 states have call successors, (0), 0 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 20:54:51,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 279.0) internal successors, (1395), 5 states have internal predecessors, (1395), 0 states have call successors, (0), 0 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 20:54:51,856 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 279.0) internal successors, (1395), 5 states have internal predecessors, (1395), 0 states have call successors, (0), 0 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 20:54:51,856 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 133 flow. Second operand 4 states and 553 transitions. [2022-12-13 20:54:51,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 93 transitions, 465 flow [2022-12-13 20:54:51,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 93 transitions, 449 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 20:54:51,860 INFO L231 Difference]: Finished difference. Result has 53 places, 50 transitions, 199 flow [2022-12-13 20:54:51,860 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=199, PETRI_PLACES=53, PETRI_TRANSITIONS=50} [2022-12-13 20:54:51,860 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -29 predicate places. [2022-12-13 20:54:51,861 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 50 transitions, 199 flow [2022-12-13 20:54:51,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 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 20:54:51,861 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:54:51,861 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:54:51,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 20:54:51,861 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-12-13 20:54:51,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:54:51,861 INFO L85 PathProgramCache]: Analyzing trace with hash -909570979, now seen corresponding path program 1 times [2022-12-13 20:54:51,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:54:51,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720245742] [2022-12-13 20:54:51,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:54:51,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:54:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:51,883 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 20:54:51,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:54:51,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720245742] [2022-12-13 20:54:51,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720245742] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:54:51,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:54:51,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:54:51,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733939761] [2022-12-13 20:54:51,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:54:51,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:54:51,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:54:51,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:54:51,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:54:51,892 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 279 [2022-12-13 20:54:51,892 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 50 transitions, 199 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 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 20:54:51,892 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:54:51,893 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 279 [2022-12-13 20:54:51,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:54:52,214 INFO L130 PetriNetUnfolder]: 2506/4412 cut-off events. [2022-12-13 20:54:52,214 INFO L131 PetriNetUnfolder]: For 3334/3346 co-relation queries the response was YES. [2022-12-13 20:54:52,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11764 conditions, 4412 events. 2506/4412 cut-off events. For 3334/3346 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 26108 event pairs, 1950 based on Foata normal form. 0/4339 useless extension candidates. Maximal degree in co-relation 11756. Up to 4100 conditions per place. [2022-12-13 20:54:52,223 INFO L137 encePairwiseOnDemand]: 272/279 looper letters, 56 selfloop transitions, 6 changer transitions 4/68 dead transitions. [2022-12-13 20:54:52,223 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 68 transitions, 387 flow [2022-12-13 20:54:52,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:54:52,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:54:52,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2022-12-13 20:54:52,224 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4659498207885305 [2022-12-13 20:54:52,224 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 390 transitions. [2022-12-13 20:54:52,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 390 transitions. [2022-12-13 20:54:52,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:54:52,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 390 transitions. [2022-12-13 20:54:52,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 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 20:54:52,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 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 20:54:52,226 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 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 20:54:52,227 INFO L175 Difference]: Start difference. First operand has 53 places, 50 transitions, 199 flow. Second operand 3 states and 390 transitions. [2022-12-13 20:54:52,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 68 transitions, 387 flow [2022-12-13 20:54:52,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 68 transitions, 387 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 20:54:52,229 INFO L231 Difference]: Finished difference. Result has 56 places, 53 transitions, 239 flow [2022-12-13 20:54:52,229 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=239, PETRI_PLACES=56, PETRI_TRANSITIONS=53} [2022-12-13 20:54:52,230 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -26 predicate places. [2022-12-13 20:54:52,230 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 53 transitions, 239 flow [2022-12-13 20:54:52,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 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 20:54:52,230 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:54:52,230 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:54:52,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 20:54:52,230 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-12-13 20:54:52,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:54:52,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1938008552, now seen corresponding path program 1 times [2022-12-13 20:54:52,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:54:52,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374117416] [2022-12-13 20:54:52,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:54:52,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:54:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:52,289 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 20:54:52,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:54:52,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374117416] [2022-12-13 20:54:52,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374117416] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:54:52,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:54:52,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:54:52,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508667292] [2022-12-13 20:54:52,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:54:52,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:54:52,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:54:52,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:54:52,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:54:52,291 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 279 [2022-12-13 20:54:52,292 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 53 transitions, 239 flow. Second operand has 5 states, 5 states have (on average 120.6) internal successors, (603), 5 states have internal predecessors, (603), 0 states have call successors, (0), 0 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 20:54:52,292 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:54:52,292 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 279 [2022-12-13 20:54:52,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:54:52,698 INFO L130 PetriNetUnfolder]: 2324/4230 cut-off events. [2022-12-13 20:54:52,699 INFO L131 PetriNetUnfolder]: For 4738/4883 co-relation queries the response was YES. [2022-12-13 20:54:52,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12316 conditions, 4230 events. 2324/4230 cut-off events. For 4738/4883 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 27171 event pairs, 586 based on Foata normal form. 173/4376 useless extension candidates. Maximal degree in co-relation 12306. Up to 1902 conditions per place. [2022-12-13 20:54:52,707 INFO L137 encePairwiseOnDemand]: 272/279 looper letters, 70 selfloop transitions, 9 changer transitions 27/110 dead transitions. [2022-12-13 20:54:52,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 110 transitions, 653 flow [2022-12-13 20:54:52,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 20:54:52,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 20:54:52,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 681 transitions. [2022-12-13 20:54:52,709 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4881720430107527 [2022-12-13 20:54:52,709 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 681 transitions. [2022-12-13 20:54:52,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 681 transitions. [2022-12-13 20:54:52,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:54:52,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 681 transitions. [2022-12-13 20:54:52,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.2) internal successors, (681), 5 states have internal predecessors, (681), 0 states have call successors, (0), 0 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 20:54:52,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 279.0) internal successors, (1674), 6 states have internal predecessors, (1674), 0 states have call successors, (0), 0 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 20:54:52,712 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 279.0) internal successors, (1674), 6 states have internal predecessors, (1674), 0 states have call successors, (0), 0 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 20:54:52,712 INFO L175 Difference]: Start difference. First operand has 56 places, 53 transitions, 239 flow. Second operand 5 states and 681 transitions. [2022-12-13 20:54:52,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 110 transitions, 653 flow [2022-12-13 20:54:52,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 110 transitions, 638 flow, removed 4 selfloop flow, removed 1 redundant places. [2022-12-13 20:54:52,717 INFO L231 Difference]: Finished difference. Result has 60 places, 53 transitions, 251 flow [2022-12-13 20:54:52,718 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=251, PETRI_PLACES=60, PETRI_TRANSITIONS=53} [2022-12-13 20:54:52,718 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -22 predicate places. [2022-12-13 20:54:52,718 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 53 transitions, 251 flow [2022-12-13 20:54:52,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.6) internal successors, (603), 5 states have internal predecessors, (603), 0 states have call successors, (0), 0 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 20:54:52,718 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:54:52,718 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:54:52,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 20:54:52,719 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-12-13 20:54:52,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:54:52,719 INFO L85 PathProgramCache]: Analyzing trace with hash -168235546, now seen corresponding path program 2 times [2022-12-13 20:54:52,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:54:52,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285419674] [2022-12-13 20:54:52,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:54:52,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:54:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:52,774 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 20:54:52,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:54:52,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285419674] [2022-12-13 20:54:52,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285419674] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:54:52,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:54:52,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:54:52,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565227562] [2022-12-13 20:54:52,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:54:52,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:54:52,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:54:52,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:54:52,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:54:52,777 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 279 [2022-12-13 20:54:52,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 53 transitions, 251 flow. Second operand has 5 states, 5 states have (on average 120.6) internal successors, (603), 5 states have internal predecessors, (603), 0 states have call successors, (0), 0 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 20:54:52,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:54:52,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 279 [2022-12-13 20:54:52,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:54:52,943 INFO L130 PetriNetUnfolder]: 593/1371 cut-off events. [2022-12-13 20:54:52,943 INFO L131 PetriNetUnfolder]: For 2653/2668 co-relation queries the response was YES. [2022-12-13 20:54:52,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4160 conditions, 1371 events. 593/1371 cut-off events. For 2653/2668 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 8241 event pairs, 192 based on Foata normal form. 125/1491 useless extension candidates. Maximal degree in co-relation 4149. Up to 770 conditions per place. [2022-12-13 20:54:52,945 INFO L137 encePairwiseOnDemand]: 272/279 looper letters, 0 selfloop transitions, 0 changer transitions 57/57 dead transitions. [2022-12-13 20:54:52,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 57 transitions, 343 flow [2022-12-13 20:54:52,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 20:54:52,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 20:54:52,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 642 transitions. [2022-12-13 20:54:52,946 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46021505376344085 [2022-12-13 20:54:52,946 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 642 transitions. [2022-12-13 20:54:52,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 642 transitions. [2022-12-13 20:54:52,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:54:52,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 642 transitions. [2022-12-13 20:54:52,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 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 20:54:52,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 279.0) internal successors, (1674), 6 states have internal predecessors, (1674), 0 states have call successors, (0), 0 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 20:54:52,949 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 279.0) internal successors, (1674), 6 states have internal predecessors, (1674), 0 states have call successors, (0), 0 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 20:54:52,949 INFO L175 Difference]: Start difference. First operand has 60 places, 53 transitions, 251 flow. Second operand 5 states and 642 transitions. [2022-12-13 20:54:52,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 57 transitions, 343 flow [2022-12-13 20:54:52,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 57 transitions, 299 flow, removed 11 selfloop flow, removed 7 redundant places. [2022-12-13 20:54:52,952 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2022-12-13 20:54:52,952 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2022-12-13 20:54:52,952 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -28 predicate places. [2022-12-13 20:54:52,952 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2022-12-13 20:54:52,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.6) internal successors, (603), 5 states have internal predecessors, (603), 0 states have call successors, (0), 0 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 20:54:52,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (49 of 50 remaining) [2022-12-13 20:54:52,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (48 of 50 remaining) [2022-12-13 20:54:52,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (47 of 50 remaining) [2022-12-13 20:54:52,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (46 of 50 remaining) [2022-12-13 20:54:52,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (45 of 50 remaining) [2022-12-13 20:54:52,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (44 of 50 remaining) [2022-12-13 20:54:52,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (43 of 50 remaining) [2022-12-13 20:54:52,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (42 of 50 remaining) [2022-12-13 20:54:52,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (41 of 50 remaining) [2022-12-13 20:54:52,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (40 of 50 remaining) [2022-12-13 20:54:52,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (39 of 50 remaining) [2022-12-13 20:54:52,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (38 of 50 remaining) [2022-12-13 20:54:52,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (37 of 50 remaining) [2022-12-13 20:54:52,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 50 remaining) [2022-12-13 20:54:52,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 50 remaining) [2022-12-13 20:54:52,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 50 remaining) [2022-12-13 20:54:52,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 50 remaining) [2022-12-13 20:54:52,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (32 of 50 remaining) [2022-12-13 20:54:52,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (31 of 50 remaining) [2022-12-13 20:54:52,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (30 of 50 remaining) [2022-12-13 20:54:52,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (29 of 50 remaining) [2022-12-13 20:54:52,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (28 of 50 remaining) [2022-12-13 20:54:52,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (27 of 50 remaining) [2022-12-13 20:54:52,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (26 of 50 remaining) [2022-12-13 20:54:52,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (25 of 50 remaining) [2022-12-13 20:54:52,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (24 of 50 remaining) [2022-12-13 20:54:52,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (23 of 50 remaining) [2022-12-13 20:54:52,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (22 of 50 remaining) [2022-12-13 20:54:52,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (21 of 50 remaining) [2022-12-13 20:54:52,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (20 of 50 remaining) [2022-12-13 20:54:52,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (19 of 50 remaining) [2022-12-13 20:54:52,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (18 of 50 remaining) [2022-12-13 20:54:52,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (17 of 50 remaining) [2022-12-13 20:54:52,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (16 of 50 remaining) [2022-12-13 20:54:52,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (15 of 50 remaining) [2022-12-13 20:54:52,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (14 of 50 remaining) [2022-12-13 20:54:52,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (13 of 50 remaining) [2022-12-13 20:54:52,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (12 of 50 remaining) [2022-12-13 20:54:52,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (11 of 50 remaining) [2022-12-13 20:54:52,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (10 of 50 remaining) [2022-12-13 20:54:52,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (9 of 50 remaining) [2022-12-13 20:54:52,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (8 of 50 remaining) [2022-12-13 20:54:52,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (7 of 50 remaining) [2022-12-13 20:54:52,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (6 of 50 remaining) [2022-12-13 20:54:52,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (5 of 50 remaining) [2022-12-13 20:54:52,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (4 of 50 remaining) [2022-12-13 20:54:52,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (3 of 50 remaining) [2022-12-13 20:54:52,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (2 of 50 remaining) [2022-12-13 20:54:52,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (1 of 50 remaining) [2022-12-13 20:54:52,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (0 of 50 remaining) [2022-12-13 20:54:52,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 20:54:52,959 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2022-12-13 20:54:52,963 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 20:54:52,963 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:54:52,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:54:52 BasicIcfg [2022-12-13 20:54:52,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:54:52,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:54:52,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:54:52,966 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:54:52,967 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:54:45" (3/4) ... [2022-12-13 20:54:52,969 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 20:54:52,972 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2022-12-13 20:54:52,972 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2022-12-13 20:54:52,975 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-12-13 20:54:52,975 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 20:54:52,975 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 20:54:52,975 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 20:54:52,999 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3dff82-1f4b-46b7-b596-a0543561271f/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 20:54:52,999 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:54:52,999 INFO L158 Benchmark]: Toolchain (without parser) took 8508.65ms. Allocated memory was 127.9MB in the beginning and 773.8MB in the end (delta: 645.9MB). Free memory was 92.2MB in the beginning and 550.0MB in the end (delta: -457.8MB). Peak memory consumption was 191.2MB. Max. memory is 16.1GB. [2022-12-13 20:54:52,999 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 127.9MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:54:52,999 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.81ms. Allocated memory is still 127.9MB. Free memory was 91.8MB in the beginning and 70.5MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 20:54:53,000 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.99ms. Allocated memory is still 127.9MB. Free memory was 70.5MB in the beginning and 68.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:54:53,000 INFO L158 Benchmark]: Boogie Preprocessor took 20.49ms. Allocated memory is still 127.9MB. Free memory was 68.0MB in the beginning and 65.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:54:53,000 INFO L158 Benchmark]: RCFGBuilder took 457.03ms. Allocated memory was 127.9MB in the beginning and 159.4MB in the end (delta: 31.5MB). Free memory was 65.9MB in the beginning and 123.7MB in the end (delta: -57.8MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2022-12-13 20:54:53,000 INFO L158 Benchmark]: TraceAbstraction took 7642.01ms. Allocated memory was 159.4MB in the beginning and 773.8MB in the end (delta: 614.5MB). Free memory was 122.8MB in the beginning and 553.2MB in the end (delta: -430.4MB). Peak memory consumption was 574.2MB. Max. memory is 16.1GB. [2022-12-13 20:54:53,001 INFO L158 Benchmark]: Witness Printer took 32.51ms. Allocated memory is still 773.8MB. Free memory was 553.2MB in the beginning and 550.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 20:54:53,002 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 127.9MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.81ms. Allocated memory is still 127.9MB. Free memory was 91.8MB in the beginning and 70.5MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.99ms. Allocated memory is still 127.9MB. Free memory was 70.5MB in the beginning and 68.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.49ms. Allocated memory is still 127.9MB. Free memory was 68.0MB in the beginning and 65.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 457.03ms. Allocated memory was 127.9MB in the beginning and 159.4MB in the end (delta: 31.5MB). Free memory was 65.9MB in the beginning and 123.7MB in the end (delta: -57.8MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * TraceAbstraction took 7642.01ms. Allocated memory was 159.4MB in the beginning and 773.8MB in the end (delta: 614.5MB). Free memory was 122.8MB in the beginning and 553.2MB in the end (delta: -430.4MB). Peak memory consumption was 574.2MB. Max. memory is 16.1GB. * Witness Printer took 32.51ms. Allocated memory is still 773.8MB. Free memory was 553.2MB in the beginning and 550.0MB in the end (delta: 3.1MB). 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: 2.6s, 163 PlacesBefore, 82 PlacesAfterwards, 152 TransitionsBefore, 69 TransitionsAfterwards, 8762 CoEnabledTransitionPairs, 6 FixpointIterations, 22 TrivialSequentialCompositions, 85 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 109 TotalNumberOfCompositions, 31047 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12580, independent: 12127, independent conditional: 0, independent unconditional: 12127, dependent: 453, dependent conditional: 0, dependent unconditional: 453, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3921, independent: 3853, independent conditional: 0, independent unconditional: 3853, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 12580, independent: 8274, independent conditional: 0, independent unconditional: 8274, dependent: 385, dependent conditional: 0, dependent unconditional: 385, unknown: 3921, unknown conditional: 0, unknown unconditional: 3921] , Statistics on independence cache: Total cache size (in pairs): 659, Positive cache size: 618, Positive conditional cache size: 0, Positive unconditional cache size: 618, Negative cache size: 41, Negative conditional cache size: 0, Negative unconditional cache size: 41, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 731]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 734]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 749]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 751]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: 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 7 procedures, 211 locations, 50 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: 7.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 225 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 209 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 762 IncrementalHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 2 mSDtfsCounter, 762 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=251occurred in iteration=6, InterpolantAutomatonStates: 25, 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, 0.3s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 20:54:53,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3dff82-1f4b-46b7-b596-a0543561271f/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