./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_9e11f643-5ed1-4719-9e14-7cd55caa9482/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e11f643-5ed1-4719-9e14-7cd55caa9482/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e11f643-5ed1-4719-9e14-7cd55caa9482/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e11f643-5ed1-4719-9e14-7cd55caa9482/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e11f643-5ed1-4719-9e14-7cd55caa9482/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e11f643-5ed1-4719-9e14-7cd55caa9482/bin/uautomizer-vX5HgA9Q3a --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 79b55bbc1c83a113dd61cfbd1c59324170026eea9fc3fed8c2e488e492b32e33 --- 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-b5237d8 [2022-11-21 16:10:45,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:10:45,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:10:45,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:10:45,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:10:45,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:10:45,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:10:45,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:10:45,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:10:45,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:10:45,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:10:45,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:10:45,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:10:45,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:10:45,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:10:45,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:10:45,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:10:45,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:10:45,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:10:45,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:10:45,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:10:45,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:10:45,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:10:45,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:10:45,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:10:45,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:10:45,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:10:45,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:10:45,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:10:45,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:10:45,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:10:45,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:10:45,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:10:45,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:10:45,763 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:10:45,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:10:45,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:10:45,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:10:45,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:10:45,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:10:45,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:10:45,768 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e11f643-5ed1-4719-9e14-7cd55caa9482/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 16:10:45,814 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:10:45,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:10:45,815 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:10:45,816 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:10:45,817 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:10:45,817 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:10:45,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:10:45,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:10:45,818 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:10:45,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:10:45,820 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:10:45,820 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:10:45,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:10:45,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:10:45,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:10:45,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:10:45,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:10:45,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:10:45,822 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 16:10:45,822 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:10:45,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:10:45,822 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:10:45,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:10:45,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:10:45,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:10:45,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:10:45,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:10:45,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:10:45,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:10:45,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:10:45,825 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:10:45,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:10:45,825 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:10:45,826 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:10:45,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:10:45,826 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e11f643-5ed1-4719-9e14-7cd55caa9482/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e11f643-5ed1-4719-9e14-7cd55caa9482/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79b55bbc1c83a113dd61cfbd1c59324170026eea9fc3fed8c2e488e492b32e33 [2022-11-21 16:10:46,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:10:46,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:10:46,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:10:46,133 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:10:46,133 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:10:46,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e11f643-5ed1-4719-9e14-7cd55caa9482/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2022-11-21 16:10:49,165 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:10:49,572 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:10:49,573 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e11f643-5ed1-4719-9e14-7cd55caa9482/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2022-11-21 16:10:49,593 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e11f643-5ed1-4719-9e14-7cd55caa9482/bin/uautomizer-vX5HgA9Q3a/data/7d7431eca/10da48f6fac747b0a74d21390a1a549c/FLAG59ce8a80e [2022-11-21 16:10:49,612 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e11f643-5ed1-4719-9e14-7cd55caa9482/bin/uautomizer-vX5HgA9Q3a/data/7d7431eca/10da48f6fac747b0a74d21390a1a549c [2022-11-21 16:10:49,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:10:49,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:10:49,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:10:49,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:10:49,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:10:49,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:10:49" (1/1) ... [2022-11-21 16:10:49,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f9fa638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:49, skipping insertion in model container [2022-11-21 16:10:49,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:10:49" (1/1) ... [2022-11-21 16:10:49,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:10:49,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:10:50,565 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_9e11f643-5ed1-4719-9e14-7cd55caa9482/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i[76084,76097] [2022-11-21 16:10:50,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:10:50,667 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:10:50,741 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_9e11f643-5ed1-4719-9e14-7cd55caa9482/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i[76084,76097] [2022-11-21 16:10:50,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:10:50,940 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:10:50,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:50 WrapperNode [2022-11-21 16:10:50,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:10:50,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:10:50,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:10:50,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:10:50,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:50" (1/1) ... [2022-11-21 16:10:51,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:50" (1/1) ... [2022-11-21 16:10:51,063 INFO L138 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 206 [2022-11-21 16:10:51,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:10:51,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:10:51,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:10:51,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:10:51,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:50" (1/1) ... [2022-11-21 16:10:51,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:50" (1/1) ... [2022-11-21 16:10:51,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:50" (1/1) ... [2022-11-21 16:10:51,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:50" (1/1) ... [2022-11-21 16:10:51,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:50" (1/1) ... [2022-11-21 16:10:51,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:50" (1/1) ... [2022-11-21 16:10:51,137 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:50" (1/1) ... [2022-11-21 16:10:51,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:50" (1/1) ... [2022-11-21 16:10:51,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:10:51,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:10:51,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:10:51,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:10:51,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:50" (1/1) ... [2022-11-21 16:10:51,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:10:51,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e11f643-5ed1-4719-9e14-7cd55caa9482/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:10:51,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e11f643-5ed1-4719-9e14-7cd55caa9482/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:10:51,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e11f643-5ed1-4719-9e14-7cd55caa9482/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:10:51,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:10:51,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:10:51,245 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 16:10:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:10:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:10:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:10:51,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:10:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-21 16:10:51,247 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-21 16:10:51,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:10:51,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:10:51,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:10:51,249 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:10:51,632 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:10:51,635 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:10:52,228 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:10:52,238 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:10:52,238 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:10:52,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:10:52 BoogieIcfgContainer [2022-11-21 16:10:52,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:10:52,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:10:52,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:10:52,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:10:52,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:10:49" (1/3) ... [2022-11-21 16:10:52,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@302dccd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:10:52, skipping insertion in model container [2022-11-21 16:10:52,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:50" (2/3) ... [2022-11-21 16:10:52,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@302dccd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:10:52, skipping insertion in model container [2022-11-21 16:10:52,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:10:52" (3/3) ... [2022-11-21 16:10:52,251 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2022-11-21 16:10:52,260 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:10:52,271 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:10:52,271 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-21 16:10:52,271 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:10:52,353 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-21 16:10:52,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 321 places, 323 transitions, 662 flow [2022-11-21 16:10:52,618 INFO L130 PetriNetUnfolder]: 10/400 cut-off events. [2022-11-21 16:10:52,619 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 16:10:52,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 400 events. 10/400 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 830 event pairs, 0 based on Foata normal form. 0/362 useless extension candidates. Maximal degree in co-relation 229. Up to 4 conditions per place. [2022-11-21 16:10:52,627 INFO L82 GeneralOperation]: Start removeDead. Operand has 321 places, 323 transitions, 662 flow [2022-11-21 16:10:52,642 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 319 places, 320 transitions, 652 flow [2022-11-21 16:10:52,663 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:10:52,672 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;@1efb5729, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:10:52,672 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-11-21 16:10:52,682 INFO L130 PetriNetUnfolder]: 0/42 cut-off events. [2022-11-21 16:10:52,682 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:10:52,683 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:10:52,683 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:10:52,684 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-21 16:10:52,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:10:52,692 INFO L85 PathProgramCache]: Analyzing trace with hash 32690800, now seen corresponding path program 1 times [2022-11-21 16:10:52,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:10:52,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265086062] [2022-11-21 16:10:52,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:52,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:10:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:10:53,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:53,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265086062] [2022-11-21 16:10:53,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265086062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:10:53,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:10:53,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:10:53,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8216715] [2022-11-21 16:10:53,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:10:53,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:10:53,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:10:53,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:10:53,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:10:53,816 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 323 [2022-11-21 16:10:53,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 320 transitions, 652 flow. Second operand has 6 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:53,822 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:10:53,822 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 323 [2022-11-21 16:10:53,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:04,376 INFO L130 PetriNetUnfolder]: 20989/44637 cut-off events. [2022-11-21 16:11:04,376 INFO L131 PetriNetUnfolder]: For 80/85 co-relation queries the response was YES. [2022-11-21 16:11:04,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77108 conditions, 44637 events. 20989/44637 cut-off events. For 80/85 co-relation queries the response was YES. Maximal size of possible extension queue 1048. Compared 443450 event pairs, 20988 based on Foata normal form. 592/39015 useless extension candidates. Maximal degree in co-relation 76210. Up to 32403 conditions per place. [2022-11-21 16:11:04,707 INFO L137 encePairwiseOnDemand]: 311/323 looper letters, 116 selfloop transitions, 5 changer transitions 4/307 dead transitions. [2022-11-21 16:11:04,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 307 transitions, 868 flow [2022-11-21 16:11:04,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:11:04,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:11:04,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1262 transitions. [2022-11-21 16:11:04,734 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.651186790505676 [2022-11-21 16:11:04,735 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1262 transitions. [2022-11-21 16:11:04,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1262 transitions. [2022-11-21 16:11:04,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:04,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1262 transitions. [2022-11-21 16:11:04,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.33333333333334) internal successors, (1262), 6 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:04,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 323.0) internal successors, (2261), 7 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:04,768 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 323.0) internal successors, (2261), 7 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:04,770 INFO L175 Difference]: Start difference. First operand has 319 places, 320 transitions, 652 flow. Second operand 6 states and 1262 transitions. [2022-11-21 16:11:04,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 307 transitions, 868 flow [2022-11-21 16:11:04,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 307 transitions, 860 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:11:04,800 INFO L231 Difference]: Finished difference. Result has 313 places, 303 transitions, 620 flow [2022-11-21 16:11:04,803 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=620, PETRI_PLACES=313, PETRI_TRANSITIONS=303} [2022-11-21 16:11:04,809 INFO L288 CegarLoopForPetriNet]: 319 programPoint places, -6 predicate places. [2022-11-21 16:11:04,810 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 303 transitions, 620 flow [2022-11-21 16:11:04,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:04,812 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:04,812 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:04,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:11:04,813 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-21 16:11:04,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:04,814 INFO L85 PathProgramCache]: Analyzing trace with hash 696272735, now seen corresponding path program 1 times [2022-11-21 16:11:04,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:04,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021004561] [2022-11-21 16:11:04,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:04,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:04,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:05,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:11:05,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:05,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021004561] [2022-11-21 16:11:05,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021004561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:05,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:05,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:11:05,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403173253] [2022-11-21 16:11:05,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:05,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:11:05,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:05,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:11:05,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:11:05,570 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 323 [2022-11-21 16:11:05,572 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 303 transitions, 620 flow. Second operand has 6 states, 6 states have (on average 191.66666666666666) internal successors, (1150), 6 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:05,573 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:05,573 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 323 [2022-11-21 16:11:05,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:12,417 INFO L130 PetriNetUnfolder]: 20989/44632 cut-off events. [2022-11-21 16:11:12,417 INFO L131 PetriNetUnfolder]: For 21/26 co-relation queries the response was YES. [2022-11-21 16:11:12,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77066 conditions, 44632 events. 20989/44632 cut-off events. For 21/26 co-relation queries the response was YES. Maximal size of possible extension queue 1048. Compared 443585 event pairs, 20988 based on Foata normal form. 0/38423 useless extension candidates. Maximal degree in co-relation 77005. Up to 32402 conditions per place. [2022-11-21 16:11:12,643 INFO L137 encePairwiseOnDemand]: 317/323 looper letters, 115 selfloop transitions, 5 changer transitions 0/302 dead transitions. [2022-11-21 16:11:12,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 302 transitions, 858 flow [2022-11-21 16:11:12,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:11:12,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:11:12,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1255 transitions. [2022-11-21 16:11:12,648 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6475748194014448 [2022-11-21 16:11:12,648 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1255 transitions. [2022-11-21 16:11:12,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1255 transitions. [2022-11-21 16:11:12,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:12,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1255 transitions. [2022-11-21 16:11:12,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.16666666666666) internal successors, (1255), 6 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:12,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 323.0) internal successors, (2261), 7 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:12,659 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 323.0) internal successors, (2261), 7 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:12,659 INFO L175 Difference]: Start difference. First operand has 313 places, 303 transitions, 620 flow. Second operand 6 states and 1255 transitions. [2022-11-21 16:11:12,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 302 transitions, 858 flow [2022-11-21 16:11:12,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 302 transitions, 848 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:11:12,669 INFO L231 Difference]: Finished difference. Result has 308 places, 302 transitions, 618 flow [2022-11-21 16:11:12,669 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=618, PETRI_PLACES=308, PETRI_TRANSITIONS=302} [2022-11-21 16:11:12,670 INFO L288 CegarLoopForPetriNet]: 319 programPoint places, -11 predicate places. [2022-11-21 16:11:12,671 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 302 transitions, 618 flow [2022-11-21 16:11:12,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 191.66666666666666) internal successors, (1150), 6 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:12,672 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:12,673 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:12,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:11:12,673 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-21 16:11:12,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:12,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1775371588, now seen corresponding path program 1 times [2022-11-21 16:11:12,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:12,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177746955] [2022-11-21 16:11:12,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:12,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:13,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:11:13,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:13,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177746955] [2022-11-21 16:11:13,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177746955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:13,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:13,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:11:13,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121598587] [2022-11-21 16:11:13,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:13,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:11:13,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:13,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:11:13,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:11:13,244 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 323 [2022-11-21 16:11:13,246 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 302 transitions, 618 flow. Second operand has 6 states, 6 states have (on average 194.5) internal successors, (1167), 6 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:13,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:13,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 323 [2022-11-21 16:11:13,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:19,276 INFO L130 PetriNetUnfolder]: 20989/44620 cut-off events. [2022-11-21 16:11:19,276 INFO L131 PetriNetUnfolder]: For 21/26 co-relation queries the response was YES. [2022-11-21 16:11:19,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77052 conditions, 44620 events. 20989/44620 cut-off events. For 21/26 co-relation queries the response was YES. Maximal size of possible extension queue 1050. Compared 443583 event pairs, 18324 based on Foata normal form. 0/38444 useless extension candidates. Maximal degree in co-relation 76977. Up to 32378 conditions per place. [2022-11-21 16:11:19,490 INFO L137 encePairwiseOnDemand]: 315/323 looper letters, 120 selfloop transitions, 7 changer transitions 0/311 dead transitions. [2022-11-21 16:11:19,490 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 311 transitions, 891 flow [2022-11-21 16:11:19,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:11:19,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:11:19,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1274 transitions. [2022-11-21 16:11:19,495 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6573787409700722 [2022-11-21 16:11:19,495 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1274 transitions. [2022-11-21 16:11:19,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1274 transitions. [2022-11-21 16:11:19,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:19,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1274 transitions. [2022-11-21 16:11:19,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 212.33333333333334) internal successors, (1274), 6 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:19,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 323.0) internal successors, (2261), 7 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:19,509 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 323.0) internal successors, (2261), 7 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:19,509 INFO L175 Difference]: Start difference. First operand has 308 places, 302 transitions, 618 flow. Second operand 6 states and 1274 transitions. [2022-11-21 16:11:19,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 311 transitions, 891 flow [2022-11-21 16:11:19,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 311 transitions, 881 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:11:19,517 INFO L231 Difference]: Finished difference. Result has 308 places, 304 transitions, 636 flow [2022-11-21 16:11:19,518 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=636, PETRI_PLACES=308, PETRI_TRANSITIONS=304} [2022-11-21 16:11:19,520 INFO L288 CegarLoopForPetriNet]: 319 programPoint places, -11 predicate places. [2022-11-21 16:11:19,520 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 304 transitions, 636 flow [2022-11-21 16:11:19,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 194.5) internal successors, (1167), 6 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:19,521 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:19,521 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:19,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:11:19,522 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-21 16:11:19,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:19,523 INFO L85 PathProgramCache]: Analyzing trace with hash 279398854, now seen corresponding path program 1 times [2022-11-21 16:11:19,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:19,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897692384] [2022-11-21 16:11:19,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:19,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:19,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:20,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:11:20,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:20,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897692384] [2022-11-21 16:11:20,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897692384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:20,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:20,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:11:20,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261941945] [2022-11-21 16:11:20,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:20,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:11:20,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:20,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:11:20,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:11:20,168 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 323 [2022-11-21 16:11:20,170 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 304 transitions, 636 flow. Second operand has 6 states, 6 states have (on average 195.5) internal successors, (1173), 6 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:20,171 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:20,171 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 323 [2022-11-21 16:11:20,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:26,424 INFO L130 PetriNetUnfolder]: 20989/44619 cut-off events. [2022-11-21 16:11:26,424 INFO L131 PetriNetUnfolder]: For 1526/1541 co-relation queries the response was YES. [2022-11-21 16:11:26,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78616 conditions, 44619 events. 20989/44619 cut-off events. For 1526/1541 co-relation queries the response was YES. Maximal size of possible extension queue 1050. Compared 443808 event pairs, 18324 based on Foata normal form. 2/38446 useless extension candidates. Maximal degree in co-relation 60655. Up to 32384 conditions per place. [2022-11-21 16:11:26,888 INFO L137 encePairwiseOnDemand]: 315/323 looper letters, 119 selfloop transitions, 7 changer transitions 0/310 dead transitions. [2022-11-21 16:11:26,889 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 310 transitions, 901 flow [2022-11-21 16:11:26,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:11:26,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:11:26,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1273 transitions. [2022-11-21 16:11:26,897 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6568627450980392 [2022-11-21 16:11:26,898 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1273 transitions. [2022-11-21 16:11:26,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1273 transitions. [2022-11-21 16:11:26,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:26,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1273 transitions. [2022-11-21 16:11:26,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 212.16666666666666) internal successors, (1273), 6 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:26,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 323.0) internal successors, (2261), 7 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:26,914 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 323.0) internal successors, (2261), 7 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:26,915 INFO L175 Difference]: Start difference. First operand has 308 places, 304 transitions, 636 flow. Second operand 6 states and 1273 transitions. [2022-11-21 16:11:26,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 310 transitions, 901 flow [2022-11-21 16:11:26,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 310 transitions, 891 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:11:26,921 INFO L231 Difference]: Finished difference. Result has 308 places, 303 transitions, 638 flow [2022-11-21 16:11:26,922 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=638, PETRI_PLACES=308, PETRI_TRANSITIONS=303} [2022-11-21 16:11:26,923 INFO L288 CegarLoopForPetriNet]: 319 programPoint places, -11 predicate places. [2022-11-21 16:11:26,925 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 303 transitions, 638 flow [2022-11-21 16:11:26,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 195.5) internal successors, (1173), 6 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:26,926 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:26,927 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:26,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:11:26,927 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-21 16:11:26,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:26,928 INFO L85 PathProgramCache]: Analyzing trace with hash -636362002, now seen corresponding path program 1 times [2022-11-21 16:11:26,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:26,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501729894] [2022-11-21 16:11:26,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:26,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:27,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:11:27,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:27,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501729894] [2022-11-21 16:11:27,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501729894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:27,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:27,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:11:27,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303224317] [2022-11-21 16:11:27,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:27,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:27,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:27,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:27,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:27,076 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 323 [2022-11-21 16:11:27,078 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 303 transitions, 638 flow. Second operand has 3 states, 3 states have (on average 296.3333333333333) internal successors, (889), 3 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:27,078 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:27,078 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 323 [2022-11-21 16:11:27,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:27,225 INFO L130 PetriNetUnfolder]: 25/842 cut-off events. [2022-11-21 16:11:27,225 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-21 16:11:27,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 938 conditions, 842 events. 25/842 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4321 event pairs, 16 based on Foata normal form. 0/754 useless extension candidates. Maximal degree in co-relation 337. Up to 44 conditions per place. [2022-11-21 16:11:27,234 INFO L137 encePairwiseOnDemand]: 320/323 looper letters, 13 selfloop transitions, 2 changer transitions 0/302 dead transitions. [2022-11-21 16:11:27,234 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 302 transitions, 666 flow [2022-11-21 16:11:27,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:27,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:11:27,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 901 transitions. [2022-11-21 16:11:27,237 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9298245614035088 [2022-11-21 16:11:27,237 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 901 transitions. [2022-11-21 16:11:27,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 901 transitions. [2022-11-21 16:11:27,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:27,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 901 transitions. [2022-11-21 16:11:27,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:27,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:27,244 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:27,244 INFO L175 Difference]: Start difference. First operand has 308 places, 303 transitions, 638 flow. Second operand 3 states and 901 transitions. [2022-11-21 16:11:27,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 302 transitions, 666 flow [2022-11-21 16:11:27,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 302 transitions, 652 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:11:27,250 INFO L231 Difference]: Finished difference. Result has 304 places, 302 transitions, 626 flow [2022-11-21 16:11:27,251 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=626, PETRI_PLACES=304, PETRI_TRANSITIONS=302} [2022-11-21 16:11:27,254 INFO L288 CegarLoopForPetriNet]: 319 programPoint places, -15 predicate places. [2022-11-21 16:11:27,254 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 302 transitions, 626 flow [2022-11-21 16:11:27,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 296.3333333333333) internal successors, (889), 3 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:27,255 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:27,255 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:27,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:11:27,256 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-21 16:11:27,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:27,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1240258334, now seen corresponding path program 1 times [2022-11-21 16:11:27,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:27,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678521006] [2022-11-21 16:11:27,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:27,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:27,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:27,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:11:27,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:27,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678521006] [2022-11-21 16:11:27,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678521006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:27,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:27,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:11:27,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053057963] [2022-11-21 16:11:27,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:27,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:27,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:27,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:27,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:27,376 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 323 [2022-11-21 16:11:27,377 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 302 transitions, 626 flow. Second operand has 3 states, 3 states have (on average 299.6666666666667) internal successors, (899), 3 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:27,378 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:27,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 323 [2022-11-21 16:11:27,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:27,510 INFO L130 PetriNetUnfolder]: 16/896 cut-off events. [2022-11-21 16:11:27,510 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-21 16:11:27,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 959 conditions, 896 events. 16/896 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4254 event pairs, 6 based on Foata normal form. 0/811 useless extension candidates. Maximal degree in co-relation 785. Up to 27 conditions per place. [2022-11-21 16:11:27,517 INFO L137 encePairwiseOnDemand]: 319/323 looper letters, 11 selfloop transitions, 2 changer transitions 0/303 dead transitions. [2022-11-21 16:11:27,517 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 303 transitions, 655 flow [2022-11-21 16:11:27,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:27,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:11:27,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 909 transitions. [2022-11-21 16:11:27,520 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9380804953560371 [2022-11-21 16:11:27,520 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 909 transitions. [2022-11-21 16:11:27,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 909 transitions. [2022-11-21 16:11:27,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:27,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 909 transitions. [2022-11-21 16:11:27,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:27,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:27,526 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:27,526 INFO L175 Difference]: Start difference. First operand has 304 places, 302 transitions, 626 flow. Second operand 3 states and 909 transitions. [2022-11-21 16:11:27,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 303 transitions, 655 flow [2022-11-21 16:11:27,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 303 transitions, 651 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:11:27,536 INFO L231 Difference]: Finished difference. Result has 303 places, 302 transitions, 632 flow [2022-11-21 16:11:27,537 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=632, PETRI_PLACES=303, PETRI_TRANSITIONS=302} [2022-11-21 16:11:27,540 INFO L288 CegarLoopForPetriNet]: 319 programPoint places, -16 predicate places. [2022-11-21 16:11:27,541 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 302 transitions, 632 flow [2022-11-21 16:11:27,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.6666666666667) internal successors, (899), 3 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:27,542 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:27,542 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:27,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:11:27,542 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-21 16:11:27,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:27,543 INFO L85 PathProgramCache]: Analyzing trace with hash -612768174, now seen corresponding path program 1 times [2022-11-21 16:11:27,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:27,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006826924] [2022-11-21 16:11:27,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:27,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:28,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:11:28,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:28,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006826924] [2022-11-21 16:11:28,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006826924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:28,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:28,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:11:28,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659741956] [2022-11-21 16:11:28,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:28,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:11:28,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:28,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:11:28,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:11:28,162 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 323 [2022-11-21 16:11:28,164 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 302 transitions, 632 flow. Second operand has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:28,164 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:28,164 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 323 [2022-11-21 16:11:28,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand