./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_ddb05eef-a564-499a-8c15-ce5078c9c49d/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb05eef-a564-499a-8c15-ce5078c9c49d/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_ddb05eef-a564-499a-8c15-ce5078c9c49d/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb05eef-a564-499a-8c15-ce5078c9c49d/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb05eef-a564-499a-8c15-ce5078c9c49d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb05eef-a564-499a-8c15-ce5078c9c49d/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30012893862a7e15af8bbbaf0239dbd2e8b93523943e1ee06536b5f9fb75a514 --- 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 16:37:23,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:37:23,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:37:23,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:37:23,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:37:23,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:37:23,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:37:23,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:37:23,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:37:23,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:37:23,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:37:23,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:37:23,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:37:23,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:37:23,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:37:23,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:37:23,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:37:23,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:37:23,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:37:23,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:37:23,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:37:23,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:37:23,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:37:23,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:37:23,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:37:23,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:37:23,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:37:23,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:37:23,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:37:23,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:37:23,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:37:23,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:37:23,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:37:23,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:37:23,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:37:23,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:37:23,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:37:23,820 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:37:23,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:37:23,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:37:23,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:37:23,824 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb05eef-a564-499a-8c15-ce5078c9c49d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 16:37:23,846 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:37:23,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:37:23,846 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:37:23,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:37:23,848 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:37:23,848 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:37:23,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:37:23,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:37:23,849 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:37:23,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:37:23,850 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:37:23,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:37:23,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:37:23,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:37:23,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:37:23,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:37:23,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:37:23,852 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:37:23,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:37:23,852 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:37:23,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:37:23,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:37:23,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:37:23,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:37:23,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:37:23,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:37:23,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:37:23,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:37:23,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:37:23,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:37:23,855 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:37:23,856 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:37:23,856 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:37:23,856 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_ddb05eef-a564-499a-8c15-ce5078c9c49d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb05eef-a564-499a-8c15-ce5078c9c49d/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30012893862a7e15af8bbbaf0239dbd2e8b93523943e1ee06536b5f9fb75a514 [2022-11-21 16:37:24,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:37:24,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:37:24,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:37:24,184 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:37:24,184 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:37:24,186 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb05eef-a564-499a-8c15-ce5078c9c49d/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2022-11-21 16:37:27,495 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:37:28,130 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:37:28,132 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb05eef-a564-499a-8c15-ce5078c9c49d/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2022-11-21 16:37:28,185 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb05eef-a564-499a-8c15-ce5078c9c49d/bin/uautomizer-vX5HgA9Q3a/data/483f31919/6da82a5299134f6195966e92eb3ba897/FLAGcda1b8e5e [2022-11-21 16:37:28,206 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb05eef-a564-499a-8c15-ce5078c9c49d/bin/uautomizer-vX5HgA9Q3a/data/483f31919/6da82a5299134f6195966e92eb3ba897 [2022-11-21 16:37:28,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:37:28,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:37:28,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:37:28,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:37:28,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:37:28,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:37:28" (1/1) ... [2022-11-21 16:37:28,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31061955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:28, skipping insertion in model container [2022-11-21 16:37:28,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:37:28" (1/1) ... [2022-11-21 16:37:28,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:37:28,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:37:28,849 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_ddb05eef-a564-499a-8c15-ce5078c9c49d/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i[5469,5482] [2022-11-21 16:37:33,219 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-21 16:37:34,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:37:34,200 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:37:34,235 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_ddb05eef-a564-499a-8c15-ce5078c9c49d/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i[5469,5482] [2022-11-21 16:37:34,691 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-21 16:37:34,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:37:35,396 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:37:35,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:35 WrapperNode [2022-11-21 16:37:35,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:37:35,398 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:37:35,398 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:37:35,398 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:37:35,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:35" (1/1) ... [2022-11-21 16:37:35,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:35" (1/1) ... [2022-11-21 16:37:35,618 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 19, statements flattened = 316 [2022-11-21 16:37:35,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:37:35,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:37:35,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:37:35,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:37:35,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:35" (1/1) ... [2022-11-21 16:37:35,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:35" (1/1) ... [2022-11-21 16:37:35,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:35" (1/1) ... [2022-11-21 16:37:35,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:35" (1/1) ... [2022-11-21 16:37:35,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:35" (1/1) ... [2022-11-21 16:37:35,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:35" (1/1) ... [2022-11-21 16:37:35,664 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:35" (1/1) ... [2022-11-21 16:37:35,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:35" (1/1) ... [2022-11-21 16:37:35,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:37:35,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:37:35,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:37:35,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:37:35,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:35" (1/1) ... [2022-11-21 16:37:35,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:37:35,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb05eef-a564-499a-8c15-ce5078c9c49d/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:37:35,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb05eef-a564-499a-8c15-ce5078c9c49d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:37:35,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb05eef-a564-499a-8c15-ce5078c9c49d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:37:35,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:37:35,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:37:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-11-21 16:37:35,776 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-11-21 16:37:35,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:37:35,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:37:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:37:35,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-21 16:37:35,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:37:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:37:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2022-11-21 16:37:35,778 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2022-11-21 16:37:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:37:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:37:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:37:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 16:37:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:37:35,783 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 16:37:36,300 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:37:36,303 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:37:36,863 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:37:36,890 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:37:36,891 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:37:36,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:37:36 BoogieIcfgContainer [2022-11-21 16:37:36,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:37:36,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:37:36,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:37:36,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:37:36,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:37:28" (1/3) ... [2022-11-21 16:37:36,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@569a6df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:37:36, skipping insertion in model container [2022-11-21 16:37:36,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:35" (2/3) ... [2022-11-21 16:37:36,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@569a6df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:37:36, skipping insertion in model container [2022-11-21 16:37:36,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:37:36" (3/3) ... [2022-11-21 16:37:36,902 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2022-11-21 16:37:36,916 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:37:36,926 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:37:36,927 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:37:36,927 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:37:37,065 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-21 16:37:37,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 363 places, 367 transitions, 750 flow [2022-11-21 16:37:37,266 INFO L130 PetriNetUnfolder]: 11/365 cut-off events. [2022-11-21 16:37:37,266 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 16:37:37,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 365 events. 11/365 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 346 event pairs, 0 based on Foata normal form. 0/353 useless extension candidates. Maximal degree in co-relation 300. Up to 4 conditions per place. [2022-11-21 16:37:37,275 INFO L82 GeneralOperation]: Start removeDead. Operand has 363 places, 367 transitions, 750 flow [2022-11-21 16:37:37,282 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 352 places, 356 transitions, 721 flow [2022-11-21 16:37:37,292 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:37:37,298 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;@df83fa4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:37:37,298 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-21 16:37:37,372 INFO L130 PetriNetUnfolder]: 7/307 cut-off events. [2022-11-21 16:37:37,373 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 16:37:37,373 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:37:37,374 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:37:37,374 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-21 16:37:37,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:37:37,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1517787449, now seen corresponding path program 1 times [2022-11-21 16:37:37,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:37:37,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108084698] [2022-11-21 16:37:37,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:37:37,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:37:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:37:38,035 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 16:37:38,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:37:38,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108084698] [2022-11-21 16:37:38,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108084698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:37:38,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:37:38,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:37:38,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876573673] [2022-11-21 16:37:38,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:37:38,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:37:38,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:37:38,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:37:38,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:37:38,096 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 367 [2022-11-21 16:37:38,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 356 transitions, 721 flow. Second operand has 2 states, 2 states have (on average 359.0) internal successors, (718), 2 states have internal predecessors, (718), 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 16:37:38,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:37:38,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 367 [2022-11-21 16:37:38,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:37:38,225 INFO L130 PetriNetUnfolder]: 11/391 cut-off events. [2022-11-21 16:37:38,226 INFO L131 PetriNetUnfolder]: For 9/10 co-relation queries the response was YES. [2022-11-21 16:37:38,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 391 events. 11/391 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 398 event pairs, 1 based on Foata normal form. 3/381 useless extension candidates. Maximal degree in co-relation 297. Up to 7 conditions per place. [2022-11-21 16:37:38,233 INFO L137 encePairwiseOnDemand]: 364/367 looper letters, 4 selfloop transitions, 0 changer transitions 3/352 dead transitions. [2022-11-21 16:37:38,234 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 352 transitions, 721 flow [2022-11-21 16:37:38,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:37:38,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-21 16:37:38,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 723 transitions. [2022-11-21 16:37:38,257 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9850136239782016 [2022-11-21 16:37:38,257 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 723 transitions. [2022-11-21 16:37:38,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 723 transitions. [2022-11-21 16:37:38,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:37:38,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 723 transitions. [2022-11-21 16:37:38,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 361.5) internal successors, (723), 2 states have internal predecessors, (723), 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 16:37:38,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 367.0) internal successors, (1101), 3 states have internal predecessors, (1101), 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 16:37:38,317 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 367.0) internal successors, (1101), 3 states have internal predecessors, (1101), 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 16:37:38,319 INFO L175 Difference]: Start difference. First operand has 352 places, 356 transitions, 721 flow. Second operand 2 states and 723 transitions. [2022-11-21 16:37:38,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 352 transitions, 721 flow [2022-11-21 16:37:38,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 352 transitions, 716 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-21 16:37:38,332 INFO L231 Difference]: Finished difference. Result has 349 places, 349 transitions, 702 flow [2022-11-21 16:37:38,334 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=702, PETRI_PLACES=349, PETRI_TRANSITIONS=349} [2022-11-21 16:37:38,338 INFO L288 CegarLoopForPetriNet]: 352 programPoint places, -3 predicate places. [2022-11-21 16:37:38,338 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 349 transitions, 702 flow [2022-11-21 16:37:38,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 359.0) internal successors, (718), 2 states have internal predecessors, (718), 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 16:37:38,339 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:37:38,339 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:37:38,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:37:38,340 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-21 16:37:38,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:37:38,340 INFO L85 PathProgramCache]: Analyzing trace with hash 969725384, now seen corresponding path program 1 times [2022-11-21 16:37:38,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:37:38,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693304068] [2022-11-21 16:37:38,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:37:38,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:37:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:37:39,384 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 16:37:39,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:37:39,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693304068] [2022-11-21 16:37:39,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693304068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:37:39,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:37:39,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:37:39,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964072149] [2022-11-21 16:37:39,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:37:39,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:37:39,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:37:39,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:37:39,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:37:39,403 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 367 [2022-11-21 16:37:39,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 349 transitions, 702 flow. Second operand has 6 states, 6 states have (on average 319.0) internal successors, (1914), 6 states have internal predecessors, (1914), 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 16:37:39,408 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:37:39,408 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 367 [2022-11-21 16:37:39,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:37:40,327 INFO L130 PetriNetUnfolder]: 332/2147 cut-off events. [2022-11-21 16:37:40,327 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-21 16:37:40,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2771 conditions, 2147 events. 332/2147 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 15831 event pairs, 125 based on Foata normal form. 0/2018 useless extension candidates. Maximal degree in co-relation 2768. Up to 313 conditions per place. [2022-11-21 16:37:40,340 INFO L137 encePairwiseOnDemand]: 357/367 looper letters, 59 selfloop transitions, 9 changer transitions 39/408 dead transitions. [2022-11-21 16:37:40,340 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 408 transitions, 1057 flow [2022-11-21 16:37:40,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:37:40,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-21 16:37:40,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3865 transitions. [2022-11-21 16:37:40,350 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8776112624886467 [2022-11-21 16:37:40,350 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3865 transitions. [2022-11-21 16:37:40,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3865 transitions. [2022-11-21 16:37:40,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:37:40,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3865 transitions. [2022-11-21 16:37:40,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 322.0833333333333) internal successors, (3865), 12 states have internal predecessors, (3865), 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 16:37:40,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 367.0) internal successors, (4771), 13 states have internal predecessors, (4771), 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 16:37:40,374 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 367.0) internal successors, (4771), 13 states have internal predecessors, (4771), 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 16:37:40,374 INFO L175 Difference]: Start difference. First operand has 349 places, 349 transitions, 702 flow. Second operand 12 states and 3865 transitions. [2022-11-21 16:37:40,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 408 transitions, 1057 flow [2022-11-21 16:37:40,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 408 transitions, 1057 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:37:40,383 INFO L231 Difference]: Finished difference. Result has 366 places, 357 transitions, 803 flow [2022-11-21 16:37:40,384 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=803, PETRI_PLACES=366, PETRI_TRANSITIONS=357} [2022-11-21 16:37:40,384 INFO L288 CegarLoopForPetriNet]: 352 programPoint places, 14 predicate places. [2022-11-21 16:37:40,385 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 357 transitions, 803 flow [2022-11-21 16:37:40,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 319.0) internal successors, (1914), 6 states have internal predecessors, (1914), 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 16:37:40,386 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:37:40,386 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:37:40,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:37:40,387 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-21 16:37:40,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:37:40,388 INFO L85 PathProgramCache]: Analyzing trace with hash -499502631, now seen corresponding path program 1 times [2022-11-21 16:37:40,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:37:40,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665283898] [2022-11-21 16:37:40,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:37:40,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:37:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:37:41,956 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 16:37:41,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:37:41,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665283898] [2022-11-21 16:37:41,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665283898] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:37:41,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:37:41,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:37:41,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843849340] [2022-11-21 16:37:41,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:37:41,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 16:37:41,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:37:41,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 16:37:41,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:37:41,966 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 367 [2022-11-21 16:37:41,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 357 transitions, 803 flow. Second operand has 12 states, 12 states have (on average 291.1666666666667) internal successors, (3494), 12 states have internal predecessors, (3494), 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 16:37:41,971 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:37:41,972 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 367 [2022-11-21 16:37:41,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:37:43,398 INFO L130 PetriNetUnfolder]: 283/2036 cut-off events. [2022-11-21 16:37:43,398 INFO L131 PetriNetUnfolder]: For 1833/2030 co-relation queries the response was YES. [2022-11-21 16:37:43,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3379 conditions, 2036 events. 283/2036 cut-off events. For 1833/2030 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 14576 event pairs, 40 based on Foata normal form. 7/1932 useless extension candidates. Maximal degree in co-relation 3367. Up to 225 conditions per place. [2022-11-21 16:37:43,419 INFO L137 encePairwiseOnDemand]: 352/367 looper letters, 87 selfloop transitions, 15 changer transitions 28/406 dead transitions. [2022-11-21 16:37:43,419 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 406 transitions, 1370 flow [2022-11-21 16:37:43,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-21 16:37:43,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-21 16:37:43,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 5274 transitions. [2022-11-21 16:37:43,433 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7983651226158038 [2022-11-21 16:37:43,434 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 5274 transitions. [2022-11-21 16:37:43,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 5274 transitions. [2022-11-21 16:37:43,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:37:43,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 5274 transitions. [2022-11-21 16:37:43,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 293.0) internal successors, (5274), 18 states have internal predecessors, (5274), 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 16:37:43,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 367.0) internal successors, (6973), 19 states have internal predecessors, (6973), 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 16:37:43,528 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 367.0) internal successors, (6973), 19 states have internal predecessors, (6973), 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 16:37:43,529 INFO L175 Difference]: Start difference. First operand has 366 places, 357 transitions, 803 flow. Second operand 18 states and 5274 transitions. [2022-11-21 16:37:43,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 406 transitions, 1370 flow [2022-11-21 16:37:43,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 406 transitions, 1350 flow, removed 10 selfloop flow, removed 3 redundant places. [2022-11-21 16:37:43,549 INFO L231 Difference]: Finished difference. Result has 384 places, 358 transitions, 877 flow [2022-11-21 16:37:43,550 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=795, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=877, PETRI_PLACES=384, PETRI_TRANSITIONS=358} [2022-11-21 16:37:43,552 INFO L288 CegarLoopForPetriNet]: 352 programPoint places, 32 predicate places. [2022-11-21 16:37:43,552 INFO L495 AbstractCegarLoop]: Abstraction has has 384 places, 358 transitions, 877 flow [2022-11-21 16:37:43,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 291.1666666666667) internal successors, (3494), 12 states have internal predecessors, (3494), 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 16:37:43,554 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:37:43,555 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:37:43,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:37:43,555 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-21 16:37:43,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:37:43,557 INFO L85 PathProgramCache]: Analyzing trace with hash 610566676, now seen corresponding path program 1 times [2022-11-21 16:37:43,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:37:43,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53205912] [2022-11-21 16:37:43,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:37:43,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:37:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:37:45,623 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 16:37:45,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:37:45,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53205912] [2022-11-21 16:37:45,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53205912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:37:45,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:37:45,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-21 16:37:45,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758311632] [2022-11-21 16:37:45,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:37:45,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 16:37:45,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:37:45,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 16:37:45,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:37:45,635 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 367 [2022-11-21 16:37:45,642 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 358 transitions, 877 flow. Second operand has 14 states, 14 states have (on average 305.5) internal successors, (4277), 14 states have internal predecessors, (4277), 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 16:37:45,642 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:37:45,642 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 367 [2022-11-21 16:37:45,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:37:48,164 INFO L130 PetriNetUnfolder]: 753/3886 cut-off events. [2022-11-21 16:37:48,165 INFO L131 PetriNetUnfolder]: For 5177/5189 co-relation queries the response was YES. [2022-11-21 16:37:48,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7035 conditions, 3886 events. 753/3886 cut-off events. For 5177/5189 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 33697 event pairs, 84 based on Foata normal form. 10/3721 useless extension candidates. Maximal degree in co-relation 7017. Up to 333 conditions per place. [2022-11-21 16:37:48,202 INFO L137 encePairwiseOnDemand]: 349/367 looper letters, 127 selfloop transitions, 32 changer transitions 68/517 dead transitions. [2022-11-21 16:37:48,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 517 transitions, 2019 flow [2022-11-21 16:37:48,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-21 16:37:48,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-11-21 16:37:48,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 10792 transitions. [2022-11-21 16:37:48,232 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8401712728688205 [2022-11-21 16:37:48,235 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 10792 transitions. [2022-11-21 16:37:48,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 10792 transitions. [2022-11-21 16:37:48,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:37:48,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 10792 transitions. [2022-11-21 16:37:48,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 308.34285714285716) internal successors, (10792), 35 states have internal predecessors, (10792), 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 16:37:48,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 367.0) internal successors, (13212), 36 states have internal predecessors, (13212), 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 16:37:48,314 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 367.0) internal successors, (13212), 36 states have internal predecessors, (13212), 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 16:37:48,314 INFO L175 Difference]: Start difference. First operand has 384 places, 358 transitions, 877 flow. Second operand 35 states and 10792 transitions. [2022-11-21 16:37:48,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 517 transitions, 2019 flow [2022-11-21 16:37:48,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 517 transitions, 1848 flow, removed 44 selfloop flow, removed 17 redundant places. [2022-11-21 16:37:48,365 INFO L231 Difference]: Finished difference. Result has 409 places, 377 transitions, 1066 flow [2022-11-21 16:37:48,366 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=1066, PETRI_PLACES=409, PETRI_TRANSITIONS=377} [2022-11-21 16:37:48,368 INFO L288 CegarLoopForPetriNet]: 352 programPoint places, 57 predicate places. [2022-11-21 16:37:48,368 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 377 transitions, 1066 flow [2022-11-21 16:37:48,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 305.5) internal successors, (4277), 14 states have internal predecessors, (4277), 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 16:37:48,370 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:37:48,371 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:37:48,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:37:48,371 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-21 16:37:48,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:37:48,372 INFO L85 PathProgramCache]: Analyzing trace with hash 831191546, now seen corresponding path program 2 times [2022-11-21 16:37:48,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:37:48,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325393600] [2022-11-21 16:37:48,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:37:48,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:37:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:37:50,223 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 16:37:50,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:37:50,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325393600] [2022-11-21 16:37:50,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325393600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:37:50,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:37:50,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-21 16:37:50,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080263000] [2022-11-21 16:37:50,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:37:50,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 16:37:50,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:37:50,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 16:37:50,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:37:50,231 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 367 [2022-11-21 16:37:50,236 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 377 transitions, 1066 flow. Second operand has 14 states, 14 states have (on average 305.5) internal successors, (4277), 14 states have internal predecessors, (4277), 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 16:37:50,236 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:37:50,236 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 367 [2022-11-21 16:37:50,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:37:52,755 INFO L130 PetriNetUnfolder]: 1017/5319 cut-off events. [2022-11-21 16:37:52,755 INFO L131 PetriNetUnfolder]: For 9670/9704 co-relation queries the response was YES. [2022-11-21 16:37:52,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10082 conditions, 5319 events. 1017/5319 cut-off events. For 9670/9704 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 51639 event pairs, 123 based on Foata normal form. 12/5068 useless extension candidates. Maximal degree in co-relation 10060. Up to 686 conditions per place. [2022-11-21 16:37:52,803 INFO L137 encePairwiseOnDemand]: 349/367 looper letters, 134 selfloop transitions, 44 changer transitions 27/495 dead transitions. [2022-11-21 16:37:52,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 495 transitions, 2158 flow [2022-11-21 16:37:52,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-21 16:37:52,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-21 16:37:52,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 8035 transitions. [2022-11-21 16:37:52,823 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8420666526933557 [2022-11-21 16:37:52,823 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 8035 transitions. [2022-11-21 16:37:52,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 8035 transitions. [2022-11-21 16:37:52,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:37:52,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 8035 transitions. [2022-11-21 16:37:52,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 309.03846153846155) internal successors, (8035), 26 states have internal predecessors, (8035), 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 16:37:52,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 367.0) internal successors, (9909), 27 states have internal predecessors, (9909), 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 16:37:52,870 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 367.0) internal successors, (9909), 27 states have internal predecessors, (9909), 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 16:37:52,871 INFO L175 Difference]: Start difference. First operand has 409 places, 377 transitions, 1066 flow. Second operand 26 states and 8035 transitions. [2022-11-21 16:37:52,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 495 transitions, 2158 flow [2022-11-21 16:37:52,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 495 transitions, 2093 flow, removed 30 selfloop flow, removed 6 redundant places. [2022-11-21 16:37:52,915 INFO L231 Difference]: Finished difference. Result has 427 places, 395 transitions, 1377 flow [2022-11-21 16:37:52,916 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=1037, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=1377, PETRI_PLACES=427, PETRI_TRANSITIONS=395} [2022-11-21 16:37:52,919 INFO L288 CegarLoopForPetriNet]: 352 programPoint places, 75 predicate places. [2022-11-21 16:37:52,919 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 395 transitions, 1377 flow [2022-11-21 16:37:52,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 305.5) internal successors, (4277), 14 states have internal predecessors, (4277), 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 16:37:52,921 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:37:52,921 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:37:52,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:37:52,921 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-21 16:37:52,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:37:52,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1477769314, now seen corresponding path program 3 times [2022-11-21 16:37:52,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:37:52,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048283820] [2022-11-21 16:37:52,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:37:52,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:37:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:37:54,504 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 16:37:54,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:37:54,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048283820] [2022-11-21 16:37:54,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048283820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:37:54,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:37:54,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-21 16:37:54,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946405585] [2022-11-21 16:37:54,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:37:54,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 16:37:54,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:37:54,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 16:37:54,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:37:54,513 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 367 [2022-11-21 16:37:54,517 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 395 transitions, 1377 flow. Second operand has 14 states, 14 states have (on average 305.5) internal successors, (4277), 14 states have internal predecessors, (4277), 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 16:37:54,518 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:37:54,518 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 367 [2022-11-21 16:37:54,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:37:58,386 INFO L130 PetriNetUnfolder]: 1576/8293 cut-off events. [2022-11-21 16:37:58,387 INFO L131 PetriNetUnfolder]: For 28204/28286 co-relation queries the response was YES. [2022-11-21 16:37:58,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17244 conditions, 8293 events. 1576/8293 cut-off events. For 28204/28286 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 90088 event pairs, 233 based on Foata normal form. 22/7888 useless extension candidates. Maximal degree in co-relation 17213. Up to 858 conditions per place. [2022-11-21 16:37:58,491 INFO L137 encePairwiseOnDemand]: 349/367 looper letters, 189 selfloop transitions, 61 changer transitions 40/580 dead transitions. [2022-11-21 16:37:58,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 580 transitions, 3094 flow [2022-11-21 16:37:58,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-21 16:37:58,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-11-21 16:37:58,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 11735 transitions. [2022-11-21 16:37:58,513 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8414599168220278 [2022-11-21 16:37:58,513 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 11735 transitions. [2022-11-21 16:37:58,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 11735 transitions. [2022-11-21 16:37:58,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:37:58,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 11735 transitions. [2022-11-21 16:37:58,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 308.8157894736842) internal successors, (11735), 38 states have internal predecessors, (11735), 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 16:37:58,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 367.0) internal successors, (14313), 39 states have internal predecessors, (14313), 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 16:37:58,569 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 367.0) internal successors, (14313), 39 states have internal predecessors, (14313), 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 16:37:58,569 INFO L175 Difference]: Start difference. First operand has 427 places, 395 transitions, 1377 flow. Second operand 38 states and 11735 transitions. [2022-11-21 16:37:58,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 580 transitions, 3094 flow [2022-11-21 16:37:58,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 580 transitions, 2952 flow, removed 34 selfloop flow, removed 12 redundant places. [2022-11-21 16:37:58,709 INFO L231 Difference]: Finished difference. Result has 460 places, 421 transitions, 1805 flow [2022-11-21 16:37:58,710 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=1295, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=1805, PETRI_PLACES=460, PETRI_TRANSITIONS=421} [2022-11-21 16:37:58,714 INFO L288 CegarLoopForPetriNet]: 352 programPoint places, 108 predicate places. [2022-11-21 16:37:58,714 INFO L495 AbstractCegarLoop]: Abstraction has has 460 places, 421 transitions, 1805 flow [2022-11-21 16:37:58,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 305.5) internal successors, (4277), 14 states have internal predecessors, (4277), 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 16:37:58,715 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:37:58,716 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:37:58,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:37:58,716 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-21 16:37:58,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:37:58,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1065026796, now seen corresponding path program 4 times [2022-11-21 16:37:58,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:37:58,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673833186] [2022-11-21 16:37:58,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:37:58,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:37:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:38:00,305 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 16:38:00,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:38:00,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673833186] [2022-11-21 16:38:00,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673833186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:38:00,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:38:00,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-21 16:38:00,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872547122] [2022-11-21 16:38:00,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:38:00,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 16:38:00,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:38:00,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 16:38:00,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:38:00,316 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 367 [2022-11-21 16:38:00,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 421 transitions, 1805 flow. Second operand has 14 states, 14 states have (on average 305.5) internal successors, (4277), 14 states have internal predecessors, (4277), 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 16:38:00,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:38:00,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 367 [2022-11-21 16:38:00,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:38:04,253 INFO L130 PetriNetUnfolder]: 1792/9611 cut-off events. [2022-11-21 16:38:04,254 INFO L131 PetriNetUnfolder]: For 51774/51934 co-relation queries the response was YES. [2022-11-21 16:38:04,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21347 conditions, 9611 events. 1792/9611 cut-off events. For 51774/51934 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 108185 event pairs, 229 based on Foata normal form. 25/9124 useless extension candidates. Maximal degree in co-relation 21307. Up to 1028 conditions per place. [2022-11-21 16:38:04,347 INFO L137 encePairwiseOnDemand]: 349/367 looper letters, 169 selfloop transitions, 72 changer transitions 35/566 dead transitions. [2022-11-21 16:38:04,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 566 transitions, 3426 flow [2022-11-21 16:38:04,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-21 16:38:04,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-11-21 16:38:04,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 9885 transitions. [2022-11-21 16:38:04,363 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8417064032697548 [2022-11-21 16:38:04,363 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 9885 transitions. [2022-11-21 16:38:04,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 9885 transitions. [2022-11-21 16:38:04,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:38:04,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 9885 transitions. [2022-11-21 16:38:04,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 308.90625) internal successors, (9885), 32 states have internal predecessors, (9885), 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 16:38:04,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 367.0) internal successors, (12111), 33 states have internal predecessors, (12111), 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 16:38:04,408 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 367.0) internal successors, (12111), 33 states have internal predecessors, (12111), 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 16:38:04,408 INFO L175 Difference]: Start difference. First operand has 460 places, 421 transitions, 1805 flow. Second operand 32 states and 9885 transitions. [2022-11-21 16:38:04,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 566 transitions, 3426 flow [2022-11-21 16:38:04,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 566 transitions, 3297 flow, removed 45 selfloop flow, removed 9 redundant places. [2022-11-21 16:38:04,547 INFO L231 Difference]: Finished difference. Result has 490 places, 437 transitions, 2185 flow [2022-11-21 16:38:04,548 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=1709, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=2185, PETRI_PLACES=490, PETRI_TRANSITIONS=437} [2022-11-21 16:38:04,549 INFO L288 CegarLoopForPetriNet]: 352 programPoint places, 138 predicate places. [2022-11-21 16:38:04,549 INFO L495 AbstractCegarLoop]: Abstraction has has 490 places, 437 transitions, 2185 flow [2022-11-21 16:38:04,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 305.5) internal successors, (4277), 14 states have internal predecessors, (4277), 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 16:38:04,551 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:38:04,551 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:38:04,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:38:04,552 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-21 16:38:04,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:04,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1097819758, now seen corresponding path program 5 times [2022-11-21 16:38:04,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:38:04,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159079912] [2022-11-21 16:38:04,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:38:04,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:38:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:38:06,084 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 16:38:06,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:38:06,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159079912] [2022-11-21 16:38:06,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159079912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:38:06,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:38:06,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-21 16:38:06,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148851190] [2022-11-21 16:38:06,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:38:06,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 16:38:06,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:38:06,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 16:38:06,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:38:06,092 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 367 [2022-11-21 16:38:06,096 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 437 transitions, 2185 flow. Second operand has 14 states, 14 states have (on average 305.5) internal successors, (4277), 14 states have internal predecessors, (4277), 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 16:38:06,097 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:38:06,097 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 367 [2022-11-21 16:38:06,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:38:10,172 INFO L130 PetriNetUnfolder]: 1771/9571 cut-off events. [2022-11-21 16:38:10,172 INFO L131 PetriNetUnfolder]: For 74180/74364 co-relation queries the response was YES. [2022-11-21 16:38:10,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22536 conditions, 9571 events. 1771/9571 cut-off events. For 74180/74364 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 107720 event pairs, 214 based on Foata normal form. 29/9083 useless extension candidates. Maximal degree in co-relation 22487. Up to 1028 conditions per place. [2022-11-21 16:38:10,286 INFO L137 encePairwiseOnDemand]: 349/367 looper letters, 196 selfloop transitions, 71 changer transitions 39/596 dead transitions. [2022-11-21 16:38:10,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 596 transitions, 4041 flow [2022-11-21 16:38:10,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-21 16:38:10,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-11-21 16:38:10,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 11428 transitions. [2022-11-21 16:38:10,307 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8415936372339642 [2022-11-21 16:38:10,307 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 11428 transitions. [2022-11-21 16:38:10,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 11428 transitions. [2022-11-21 16:38:10,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:38:10,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 11428 transitions. [2022-11-21 16:38:10,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 308.86486486486484) internal successors, (11428), 37 states have internal predecessors, (11428), 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 16:38:10,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 367.0) internal successors, (13946), 38 states have internal predecessors, (13946), 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 16:38:10,363 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 367.0) internal successors, (13946), 38 states have internal predecessors, (13946), 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 16:38:10,364 INFO L175 Difference]: Start difference. First operand has 490 places, 437 transitions, 2185 flow. Second operand 37 states and 11428 transitions. [2022-11-21 16:38:10,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 596 transitions, 4041 flow [2022-11-21 16:38:10,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 596 transitions, 3908 flow, removed 58 selfloop flow, removed 8 redundant places. [2022-11-21 16:38:10,607 INFO L231 Difference]: Finished difference. Result has 524 places, 444 transitions, 2430 flow [2022-11-21 16:38:10,608 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=2088, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=2430, PETRI_PLACES=524, PETRI_TRANSITIONS=444} [2022-11-21 16:38:10,610 INFO L288 CegarLoopForPetriNet]: 352 programPoint places, 172 predicate places. [2022-11-21 16:38:10,611 INFO L495 AbstractCegarLoop]: Abstraction has has 524 places, 444 transitions, 2430 flow [2022-11-21 16:38:10,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 305.5) internal successors, (4277), 14 states have internal predecessors, (4277), 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 16:38:10,612 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:38:10,613 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:38:10,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:38:10,613 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-21 16:38:10,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:10,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1052648284, now seen corresponding path program 6 times [2022-11-21 16:38:10,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:38:10,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425854431] [2022-11-21 16:38:10,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:38:10,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:38:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:38:12,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:38:12,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:38:12,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425854431] [2022-11-21 16:38:12,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425854431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:38:12,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:38:12,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-21 16:38:12,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154935535] [2022-11-21 16:38:12,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:38:12,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-21 16:38:12,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:38:12,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-21 16:38:12,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:38:12,536 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 367 [2022-11-21 16:38:12,541 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 444 transitions, 2430 flow. Second operand has 16 states, 16 states have (on average 285.25) internal successors, (4564), 16 states have internal predecessors, (4564), 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 16:38:12,541 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:38:12,541 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 367 [2022-11-21 16:38:12,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:38:16,430 INFO L130 PetriNetUnfolder]: 1765/9610 cut-off events. [2022-11-21 16:38:16,430 INFO L131 PetriNetUnfolder]: For 97427/97663 co-relation queries the response was YES. [2022-11-21 16:38:16,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23779 conditions, 9610 events. 1765/9610 cut-off events. For 97427/97663 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 108853 event pairs, 456 based on Foata normal form. 28/9147 useless extension candidates. Maximal degree in co-relation 23723. Up to 1882 conditions per place. [2022-11-21 16:38:16,545 INFO L137 encePairwiseOnDemand]: 349/367 looper letters, 146 selfloop transitions, 79 changer transitions 30/526 dead transitions. [2022-11-21 16:38:16,545 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 526 transitions, 3929 flow [2022-11-21 16:38:16,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-21 16:38:16,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-11-21 16:38:16,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 7187 transitions. [2022-11-21 16:38:16,559 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7833242506811989 [2022-11-21 16:38:16,559 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 7187 transitions. [2022-11-21 16:38:16,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 7187 transitions. [2022-11-21 16:38:16,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:38:16,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 7187 transitions. [2022-11-21 16:38:16,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 287.48) internal successors, (7187), 25 states have internal predecessors, (7187), 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 16:38:16,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 367.0) internal successors, (9542), 26 states have internal predecessors, (9542), 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 16:38:16,663 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 367.0) internal successors, (9542), 26 states have internal predecessors, (9542), 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 16:38:16,664 INFO L175 Difference]: Start difference. First operand has 524 places, 444 transitions, 2430 flow. Second operand 25 states and 7187 transitions. [2022-11-21 16:38:16,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 526 transitions, 3929 flow [2022-11-21 16:38:16,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 526 transitions, 3664 flow, removed 58 selfloop flow, removed 19 redundant places. [2022-11-21 16:38:16,926 INFO L231 Difference]: Finished difference. Result has 535 places, 459 transitions, 2725 flow [2022-11-21 16:38:16,927 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=2192, PETRI_DIFFERENCE_MINUEND_PLACES=500, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=2725, PETRI_PLACES=535, PETRI_TRANSITIONS=459} [2022-11-21 16:38:16,929 INFO L288 CegarLoopForPetriNet]: 352 programPoint places, 183 predicate places. [2022-11-21 16:38:16,929 INFO L495 AbstractCegarLoop]: Abstraction has has 535 places, 459 transitions, 2725 flow [2022-11-21 16:38:16,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 285.25) internal successors, (4564), 16 states have internal predecessors, (4564), 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 16:38:16,930 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:38:16,931 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:38:16,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:38:16,931 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-21 16:38:16,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:16,932 INFO L85 PathProgramCache]: Analyzing trace with hash -780377458, now seen corresponding path program 7 times [2022-11-21 16:38:16,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:38:16,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293406760] [2022-11-21 16:38:16,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:38:16,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:38:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:38:18,186 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 16:38:18,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:38:18,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293406760] [2022-11-21 16:38:18,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293406760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:38:18,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:38:18,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-21 16:38:18,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514245933] [2022-11-21 16:38:18,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:38:18,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 16:38:18,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:38:18,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 16:38:18,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:38:18,193 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 367 [2022-11-21 16:38:18,196 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 459 transitions, 2725 flow. Second operand has 14 states, 14 states have (on average 305.5) internal successors, (4277), 14 states have internal predecessors, (4277), 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 16:38:18,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:38:18,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 367 [2022-11-21 16:38:18,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:38:21,972 INFO L130 PetriNetUnfolder]: 1754/9501 cut-off events. [2022-11-21 16:38:21,972 INFO L131 PetriNetUnfolder]: For 119606/119762 co-relation queries the response was YES. [2022-11-21 16:38:22,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24050 conditions, 9501 events. 1754/9501 cut-off events. For 119606/119762 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 107289 event pairs, 337 based on Foata normal form. 36/9033 useless extension candidates. Maximal degree in co-relation 23989. Up to 1103 conditions per place. [2022-11-21 16:38:22,053 INFO L137 encePairwiseOnDemand]: 349/367 looper letters, 190 selfloop transitions, 75 changer transitions 33/588 dead transitions. [2022-11-21 16:38:22,053 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 562 places, 588 transitions, 4492 flow [2022-11-21 16:38:22,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-21 16:38:22,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-11-21 16:38:22,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 9881 transitions. [2022-11-21 16:38:22,070 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8413658038147139 [2022-11-21 16:38:22,070 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 9881 transitions. [2022-11-21 16:38:22,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 9881 transitions. [2022-11-21 16:38:22,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:38:22,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 9881 transitions. [2022-11-21 16:38:22,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 308.78125) internal successors, (9881), 32 states have internal predecessors, (9881), 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 16:38:22,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 367.0) internal successors, (12111), 33 states have internal predecessors, (12111), 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 16:38:22,241 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 367.0) internal successors, (12111), 33 states have internal predecessors, (12111), 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 16:38:22,243 INFO L175 Difference]: Start difference. First operand has 535 places, 459 transitions, 2725 flow. Second operand 32 states and 9881 transitions. [2022-11-21 16:38:22,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 562 places, 588 transitions, 4492 flow [2022-11-21 16:38:22,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 588 transitions, 4302 flow, removed 66 selfloop flow, removed 13 redundant places. [2022-11-21 16:38:22,606 INFO L231 Difference]: Finished difference. Result has 560 places, 465 transitions, 2928 flow [2022-11-21 16:38:22,607 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=2560, PETRI_DIFFERENCE_MINUEND_PLACES=518, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=2928, PETRI_PLACES=560, PETRI_TRANSITIONS=465} [2022-11-21 16:38:22,608 INFO L288 CegarLoopForPetriNet]: 352 programPoint places, 208 predicate places. [2022-11-21 16:38:22,609 INFO L495 AbstractCegarLoop]: Abstraction has has 560 places, 465 transitions, 2928 flow [2022-11-21 16:38:22,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 305.5) internal successors, (4277), 14 states have internal predecessors, (4277), 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 16:38:22,612 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:38:22,612 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:38:22,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:38:22,613 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-21 16:38:22,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:22,613 INFO L85 PathProgramCache]: Analyzing trace with hash -808900278, now seen corresponding path program 1 times [2022-11-21 16:38:22,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:38:22,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099045840] [2022-11-21 16:38:22,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:38:22,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:38:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:38:24,288 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 16:38:24,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:38:24,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099045840] [2022-11-21 16:38:24,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099045840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:38:24,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:38:24,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:38:24,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130671265] [2022-11-21 16:38:24,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:38:24,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-21 16:38:24,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:38:24,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-21 16:38:24,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-21 16:38:24,295 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 367 [2022-11-21 16:38:24,299 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 465 transitions, 2928 flow. Second operand has 17 states, 17 states have (on average 303.11764705882354) internal successors, (5153), 17 states have internal predecessors, (5153), 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 16:38:24,299 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:38:24,299 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 367 [2022-11-21 16:38:24,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:38:30,975 INFO L130 PetriNetUnfolder]: 3266/14007 cut-off events. [2022-11-21 16:38:30,975 INFO L131 PetriNetUnfolder]: For 195417/195521 co-relation queries the response was YES. [2022-11-21 16:38:31,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38928 conditions, 14007 events. 3266/14007 cut-off events. For 195417/195521 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 165940 event pairs, 112 based on Foata normal form. 18/13432 useless extension candidates. Maximal degree in co-relation 38859. Up to 1453 conditions per place. [2022-11-21 16:38:31,158 INFO L137 encePairwiseOnDemand]: 347/367 looper letters, 203 selfloop transitions, 87 changer transitions 183/761 dead transitions. [2022-11-21 16:38:31,158 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 600 places, 761 transitions, 6708 flow [2022-11-21 16:38:31,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-21 16:38:31,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2022-11-21 16:38:31,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 14104 transitions. [2022-11-21 16:38:31,173 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8354460371993839 [2022-11-21 16:38:31,174 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 14104 transitions. [2022-11-21 16:38:31,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 14104 transitions. [2022-11-21 16:38:31,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:38:31,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 14104 transitions. [2022-11-21 16:38:31,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 306.60869565217394) internal successors, (14104), 46 states have internal predecessors, (14104), 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 16:38:31,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 367.0) internal successors, (17249), 47 states have internal predecessors, (17249), 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 16:38:31,220 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 367.0) internal successors, (17249), 47 states have internal predecessors, (17249), 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 16:38:31,221 INFO L175 Difference]: Start difference. First operand has 560 places, 465 transitions, 2928 flow. Second operand 46 states and 14104 transitions. [2022-11-21 16:38:31,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 600 places, 761 transitions, 6708 flow [2022-11-21 16:38:32,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 583 places, 761 transitions, 6293 flow, removed 98 selfloop flow, removed 17 redundant places. [2022-11-21 16:38:32,065 INFO L231 Difference]: Finished difference. Result has 615 places, 476 transitions, 3296 flow [2022-11-21 16:38:32,066 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=2692, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=3296, PETRI_PLACES=615, PETRI_TRANSITIONS=476} [2022-11-21 16:38:32,067 INFO L288 CegarLoopForPetriNet]: 352 programPoint places, 263 predicate places. [2022-11-21 16:38:32,067 INFO L495 AbstractCegarLoop]: Abstraction has has 615 places, 476 transitions, 3296 flow [2022-11-21 16:38:32,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 303.11764705882354) internal successors, (5153), 17 states have internal predecessors, (5153), 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 16:38:32,068 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:38:32,069 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:38:32,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:38:32,069 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-21 16:38:32,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:32,070 INFO L85 PathProgramCache]: Analyzing trace with hash -733098672, now seen corresponding path program 2 times [2022-11-21 16:38:32,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:38:32,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561109172] [2022-11-21 16:38:32,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:38:32,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:38:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:38:35,400 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 16:38:35,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:38:35,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561109172] [2022-11-21 16:38:35,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561109172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:38:35,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:38:35,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-21 16:38:35,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407328233] [2022-11-21 16:38:35,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:38:35,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-21 16:38:35,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:38:35,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-21 16:38:35,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2022-11-21 16:38:35,410 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 367 [2022-11-21 16:38:35,416 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 615 places, 476 transitions, 3296 flow. Second operand has 26 states, 26 states have (on average 268.0) internal successors, (6968), 26 states have internal predecessors, (6968), 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 16:38:35,416 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:38:35,416 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 367 [2022-11-21 16:38:35,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:38:59,360 INFO L130 PetriNetUnfolder]: 9495/37953 cut-off events. [2022-11-21 16:38:59,360 INFO L131 PetriNetUnfolder]: For 873905/875446 co-relation queries the response was YES. [2022-11-21 16:39:00,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126390 conditions, 37953 events. 9495/37953 cut-off events. For 873905/875446 co-relation queries the response was YES. Maximal size of possible extension queue 1251. Compared 512768 event pairs, 3146 based on Foata normal form. 343/36354 useless extension candidates. Maximal degree in co-relation 126292. Up to 5097 conditions per place. [2022-11-21 16:39:00,171 INFO L137 encePairwiseOnDemand]: 336/367 looper letters, 421 selfloop transitions, 207 changer transitions 395/1280 dead transitions. [2022-11-21 16:39:00,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 693 places, 1280 transitions, 14526 flow [2022-11-21 16:39:00,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-11-21 16:39:00,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2022-11-21 16:39:00,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 26914 transitions. [2022-11-21 16:39:00,482 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7407590895329315 [2022-11-21 16:39:00,482 INFO L72 ComplementDD]: Start complementDD. Operand 99 states and 26914 transitions. [2022-11-21 16:39:00,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 26914 transitions. [2022-11-21 16:39:00,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:39:00,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 99 states and 26914 transitions. [2022-11-21 16:39:00,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 100 states, 99 states have (on average 271.85858585858585) internal successors, (26914), 99 states have internal predecessors, (26914), 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 16:39:00,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 100 states, 100 states have (on average 367.0) internal successors, (36700), 100 states have internal predecessors, (36700), 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 16:39:00,589 INFO L81 ComplementDD]: Finished complementDD. Result has 100 states, 100 states have (on average 367.0) internal successors, (36700), 100 states have internal predecessors, (36700), 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 16:39:00,589 INFO L175 Difference]: Start difference. First operand has 615 places, 476 transitions, 3296 flow. Second operand 99 states and 26914 transitions. [2022-11-21 16:39:00,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 693 places, 1280 transitions, 14526 flow [2022-11-21 16:39:07,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 657 places, 1280 transitions, 13372 flow, removed 332 selfloop flow, removed 36 redundant places. [2022-11-21 16:39:07,245 INFO L231 Difference]: Finished difference. Result has 708 places, 611 transitions, 6819 flow [2022-11-21 16:39:07,246 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=3101, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=99, PETRI_FLOW=6819, PETRI_PLACES=708, PETRI_TRANSITIONS=611} [2022-11-21 16:39:07,246 INFO L288 CegarLoopForPetriNet]: 352 programPoint places, 356 predicate places. [2022-11-21 16:39:07,246 INFO L495 AbstractCegarLoop]: Abstraction has has 708 places, 611 transitions, 6819 flow [2022-11-21 16:39:07,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 268.0) internal successors, (6968), 26 states have internal predecessors, (6968), 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 16:39:07,248 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:39:07,248 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:39:07,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:39:07,248 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-21 16:39:07,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:39:07,249 INFO L85 PathProgramCache]: Analyzing trace with hash 40498134, now seen corresponding path program 3 times [2022-11-21 16:39:07,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:39:07,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499040495] [2022-11-21 16:39:07,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:39:07,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:39:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:39:08,652 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 16:39:08,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:39:08,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499040495] [2022-11-21 16:39:08,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499040495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:39:08,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:39:08,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:39:08,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137068580] [2022-11-21 16:39:08,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:39:08,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-21 16:39:08,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:39:08,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-21 16:39:08,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-11-21 16:39:08,661 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 367 [2022-11-21 16:39:08,664 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 708 places, 611 transitions, 6819 flow. Second operand has 17 states, 17 states have (on average 303.11764705882354) internal successors, (5153), 17 states have internal predecessors, (5153), 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 16:39:08,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:39:08,665 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 367 [2022-11-21 16:39:08,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand